10 Best Amazon Prime Big Deal Days Smart Lock Deals (October 2026 Sale)

The lock most worth watching during Prime Big Deal Days is the Schlage Encode. It has the largest review base of anything on this list at more than 13,000 owner ratings, built-in Wi-Fi so you skip the hub entirely, and a physical backup key so a dead battery never locks you out of your own front door.

For anyone spending as little as possible on their first keyless lock, the TEEHO TE002 does fingerprint and keypad entry offline with no app and no account. Homeowners who already run Apple Home or SmartThings and want the lock to speak the same protocol as the rest of the house should look at the Ultraloq Bolt SE, one of the few deadbolts that pairs built-in Wi-Fi with Matter over Thread. Amazon’s autumn sale runs October 6-7, 2026, and most offers need a Prime membership, though a free trial counts.

Our Top 3 Picks for Best Amazon Prime Big Deal Days Smart Lock Deals

Best Amazon Prime Big Deal Days Smart Lock Deals Compared (October 2026)

How We Chose

We compared the specs that decide whether a smart lock fits a real door: unlock methods, connectivity, power source, fit range and the physical security rating. We also read owner reviews and ratings on Amazon. Everything here was checked on October 2026, and deal pricing moves constantly, so use the buttons to see the current figure.

1. Schlage Encode: Editor’s Choice for Whole-Home Reliability

The safest all-round pick for a front door you actually lock every night. Owners tend to describe the same thing: it does the boring things reliably, day after day, without demanding attention.

Two things set this deadbolt apart from cheaper keypad locks. The first is built-in Wi-Fi, so there is no bridge to plug in and no hub to lose; the Schlage Home app talks to the lock directly. The second is the code capacity, at up to 100 access codes with history you can scroll through, which is more headroom than most families and small rental properties will ever use.

The security side is unusually well thought out for a residential lock. There is a customizable built-in alarm for door movement and forced entry, a fingerprint-resistant touchscreen that resists smudges and guesswork, and a BHMA residential security and durability certification. Fingerprint resistance here means the keypad is designed not to leak codes from oily or wet fingers, not that there is a fingerprint reader.

Four AA batteries are included and rated at up to six months, with a low-battery indicator on the lock face and in the app. One physical backup key comes in the box, which is the single most reassuring thing on the spec sheet. Installation is the Snap ‘n Stay design, fits standard doors from 1-3/8 to 1-3/4 inches thick with a 2-3/8 or 2-3/4 inch backset, and needs no hardwiring.

Worth thinking about before the box arrives: Wi-Fi on a lock is a convenience that runs on batteries. Every remote unlock, every push notification and every app check wakes the radio, and that is the difference between a deadbolt that sits there for months and one that needs cells twice a year. Owners of Wi-Fi models say the low-battery warning can arrive later than they would like, which is the practical argument for the six-month figure not being read as a guarantee.

• Best rating support in this list, with more than 13,000 owner reviews
• Remote lock and unlock over built-in Wi-Fi, no separate hardware
• Alexa and Google Home work once paired to the Schlage Home app
• Auto-lock with a selectable delay plus one-touch exterior locking

Where it sits against the other keypad-first locks: the TEEHO TE002 works entirely offline with no app at all, so choose the Schlage when you want to let someone in from work when you are not there, and the TEEHO when nobody outside the house should ever open it.

Owners do report the usual fit issues in this category, most often a door that falls outside the thickness or backset range. Skip it if your door is unusual or if you need a fingerprint reader, since the Encode covers codes, app, key and voice but not biometrics.

2. TEEHO TE002: Budget Pick for First-Time Keyless Entry

The cheapest way to stop losing keys, and the only lock here that asks nothing of your phone. There is no account to create, no cloud to trust and nothing to go wrong when the internet drops.

The unlock count looks generous: up to 20 fingerprints and 20 passcodes, two physical keys, and one-time PINs that erase themselves once used. That last feature is quietly the best of the bunch for anyone handing a key to a contractor, a cleaner or a guest, because a code that no longer exists cannot be copied off a sticky note.

The fingerprint sensor reads in about a second and recognises a print in roughly 0.3 seconds, with adaptive recognition that tunes itself to the user over time. Power comes from four AA batteries, not included, rated at up to 365 days, with a red light below 15 percent. Silent mode mutes the beeps for late nights, and away mode does the same for travel.

Fit is the catch worth reading twice. This lock fits a 2-1/8 inch door bore only, so if your hole is smaller it simply will not go in, and the build is lighter than zinc or solid-body competitors at 16 ounces. On the security side there are anti-peeping passcodes, lockout after several wrong entries, a BHMA Grade 3 certification and IP54 weather resistance.

The bell scenario is where this lock earns its place. Kids coming home at four, a neighbour watering plants while you are away, a delivery driver you do not want to hand a spare key to: the TE002 handles all three with a number you type once and never think about. Because the codes live on the lock rather than in an account, there is nothing to reset after a router change, a new phone or a reinstall.

Weather is the other angle. IP54 rating and a BHMA Grade 3 certification cover the exposed front door case most people actually own, and the aluminum alloy body survives a wet week better than the thin zinc shells on some cheaper locks. If your door is directly exposed to driving rain rather than a covered porch, check the rating on any lock you buy, including this one.

• Up to 20 fingerprints and 20 passcodes stored on the lock
• Auto-lock 10 to 99 seconds after closing, or switchable off
• Two-year warranty with lifetime customer service
• Aluminum alloy body with BHMA Grade 3 and IP54 ratings

The eufy Smart Lock C220 sits further up this list for anyone who needs the app: it adds remote unlock and a wider set of unlock methods, at a higher outlay and inside an ecosystem. The TE002 makes more sense for a household that only needs a keyless front door and a code for the dog walker.

Owners mention programming takes getting used to, since codes are entered at the door rather than in an app, and a few report the auto-lock delay resetting to its minimum. With no app there is also no access log, so if you need a record of who came and went, this is the wrong lock.

3. Ultraloq Bolt SE: Best Value for Matter Over Thread Homes

The rare deadbolt that covers both the hub-averse buyer and the Apple Home buyer without a compromise. Most locks force that choice. This one does not.

The built-in 2.4 GHz Wi-Fi handles remote access on its own, so you can unlock the door from the app while the Thread radio handles the low-power mesh side for battery life rated at up to 18 months. Keep the router within about 70 feet, and note that only the 2.4 GHz band is supported.

Seven unlock paths are supported: up to 50 fingerprints, 50 passcodes, the smartphone app, a web portal for management, eKey and code sharing, voice control, and two mechanical keys. That capacity suits a house where everyone has a print and a code, or a small office where turnover is constant.

Platform support is the real headline. The controller list covers Amazon Alexa, Android, Apple HomeKit, Google Assistant and SmartThings, and the Thread mesh network is self-healing, which matters when the lock sits at the end of a hallway. The body is a BHMA-certified zinc alloy with IP65 waterproofing and installs in about ten minutes.

A busy household is where the seven unlock paths start to earn their keep. Two adults coming and going on different schedules, teenagers who should not need a key, a regular dog walker and a tradesperson who needs one day of access rather than a permanent code, all handled without anyone sharing a single number. Fingerprints also stop the problem of a keypad that half the family cannot read in the dark.

The battery claim is the one to understand before buying rather than after. Eighteen months comes from the low-power Thread radio, which is why the Thread Border Router matters even if you never open the Apple Home app. Run it on Wi-Fi alone and the radio works much harder, so owners who lean on remote unlock tend to see the interval shorten.

• Zinc alloy body, BHMA certified, IP65 waterproof
• Lifetime mechanical coverage and 18-month electronic protection
• Timer-based relocking with an instant-lock button and low battery alerts
• Door sensor is not included, which limits ajar detection

A mixed household is where this one pulls ahead of the Aqara Smart Lock U100. Aqara is built around Apple Home Key and Zigbee, while the Ultraloq speaks Matter over Thread and Wi-Fi, so a single lock can sit in a Google Home setup and an Apple Home setup without either side needing a bridge.

Good to know: Matter over Thread features need a Thread Border Router somewhere in the house. If you do not have one and do not plan to add one, the built-in Wi-Fi still works fine and you can ignore Matter entirely.

4. eufy Smart Lock C220: Best for Fingerprint Accuracy

The lock to buy if your fingers are the problem. The self-learning fingerprint reader is the reason this one keeps coming up, because it stops rejecting the same thumb after a month of wet mornings and winter gloves.

Six ways in: fingerprint in under a second, the eufy Security app, the keypad, a physical key, an Apple Watch and voice through Alexa or Google Assistant. Remote control comes from built-in Wi-Fi, which means no bridge sitting next to your router. Owners who also run eufy doorbells can fold the lock into the same app and routines.

Eight AA batteries give roughly eight months, and the listing is honest that heavy usage cuts into that. The certification is BHMA Grade 3 after more than 100,000 lock cycles, with IP53 waterproofing and an operating range from minus 22 to 158 degrees.

Installation is the least punishing part. It fits most standard deadbolt bores with a 15-minute install and no drilling, and for bores under 54mm you pop out the included spacer. A deadbolt stays a deadbolt, so the door hardware does not change.

The retrofit angle matters more than the feature list here. Swapping an existing deadbolt keeps the bore, the strike plate and the door cosmetics intact, which is why it is one of the more sensible choices on a door you do not own outright. If the existing deadbolt is single cylinder the fit is straightforward, and double-cylinder doors are worth checking before you order.

Cold is the other practical detail worth checking against your own door. The stated range runs to minus 22 degrees, and the reader is reported by owners to keep working with slightly wet or dirty fingers, which is the difference between a lock you use and one you end up bypassing with the physical key.

• Fingerprint reads in under one second with self-learning recognition
• Physical key fallback on every one of the six methods
• eufy ecosystem integration with doorbells and routines
• Remote unlock over built-in Wi-Fi with no bridge required

The Veise VE017 is the other fingerprint deadbolt at this point in the list, and the one to consider if you would rather not sit inside the eufy app at all. Its reader is comparable, but remote features sit behind a separately sold gateway, so the eufy wins if you would rather avoid another box in the cupboard.

Owners report battery consumption that varies with how often the lock cycles, and the app dependency is the thing to think about before you commit. Skip it if you plan to move to Home Assistant or a non-eufy system later; there is no open local API story here.

5. Aqara Smart Lock U100: Best for Apple Home Key

Tap-to-unlock for people who never take their iPhone out of their pocket. Apple Home Key is the headline, and the detail that matters most is that it still works when the phone or watch is powered off.

The fingerprint reader is high-precision and holds up to 50 prints, and the security posture is the most detailed in this roundup: zinc alloy body, IP65 weatherproofing, BHMA Level 3 safety standard, an operating range down to minus 31 and up to 151 degrees, and fingerprint data encrypted and stored locally on the lock.

A Do Not Disturb mode mutes lock sounds for people sleeping nearby, and a built-in gyroscope handles relocking once the door closes, or you can disable it. Four AA batteries are included with up to eight months of life, and a USB-C emergency charging port sits on the inside for the day the batteries do go flat before you notice the warning.

Here is the honest trade-off. Apple Home works natively. Everything else, meaning app-configured passcodes, Google Home, Alexa and IFTTT automations, needs an Aqara Zigbee 3.0 hub bought separately. This lock also has the lowest average rating of the ten here at 4.1 stars, which is a fair reflection of setup friction rather than a security concern.

Home Key changes the daily routine more than it sounds like it does. There is no waking the phone, no fingerprint press on a wet hand, no code typed by a visitor who cannot see the digits. You walk up, tap the top of the lock with an iPhone or an Apple Watch and go in. For a household with older children or someone whose hands make keypads difficult, that convenience is the reason to buy this lock at all.

The rest of the security story is unusually careful for a consumer lock. Fingerprint data is encrypted and stays on the device rather than being uploaded, the body is rated IP65 and BHMA Level 3, and the operating range of minus 31 to 151 degrees covers most of North America without a heated handle or a special finish.

• One-time local visitor passwords that work without the app
• Gyroscope auto-lock and a Do Not Disturb silent mode
• Mechanical key included alongside fingerprint and Home Key
• NFC card is an extra purchase if you want fob access

An all-Apple household will find the Aqara Smart Lock U100 a cleaner fit, since the U100 removes the hub question entirely for Home Key. If anyone at home runs Google Home or SmartThings natively, the Ultraloq is the smarter buy and needs no extra hardware.

Remote passcode management needs the hub; local one-time codes and the fingerprint reader do not. An owner who never shares codes remotely can skip it entirely, which is a legitimate way to buy this lock without any extra hardware.

6. Veise VE06-H: Best for a Complete Front Door Handle Set

Most smart locks on this list replace a deadbolt. This one replaces the whole front door. If your entry door has a lever handle you are tired of, you do not have to buy a second product to match it.

Five access methods cover app, code, fob, mechanical key and the interior thumb turn. Code handling is the headline here: 250 or more user codes with one-time, permanent, scheduled and recurring options, remote eKey generation, and access records you can actually review later.

Privacy mode, passage mode, one-touch locking, a low battery alert and a keypad with anti-peeping and anti-hacking behavior all sit in an IP55-rated body, and relocking can be timed or switched off. Reviewers often single out the weight and finish, comparing it favourably to premium hardware that looks tired after a few seasons.

Two practical notes. Alexa and Google Home require the separately sold Veise G2 gateway, and the install expects three pre-drilled holes at the correct spacing on doors between 1-3/8 and 2 inches thick. If your door is a solid slab with no existing holes, this is not a ten-minute job.

Front door aesthetics are a real consideration when the lock is the largest thing on the door. A deadbolt leaves the lever handle on a different style and a different finish, and on a decent front door that mismatch is the first thing visitors notice. Shipping the handle with the lock removes the problem, and 75 percent of owners gave this set five stars despite it having the smallest review base on this list.

Both door swing directions are supported, and the warranty is a one-year limited term that extends by a free year if you register the product, which is worth two minutes of setup time.

• Complete set: exterior handle, deadbolt and interior hardware in one box
• Scheduled and recurring codes for cleaners or short-let guests
• One-year limited warranty plus a free extra year with registration
• IP55 waterproof for exposed entry doors

Two handle sets appear on this list, and the other is the Philips WiFi Handle Deadbolt. Both need optional hardware for voice assistants, but the Veise fits thicker doors up to 2 inches and carries far more code capacity, while the Philips is easier on a standard thinner door.

Owners report occasional app connectivity dropouts shortly after setup, and the interior handle paint can arrive chipped. Several reviewers needed to contact support to get code programming right, so budget an hour on a calm evening.

7. Veise VE017: Best for the Fastest Fingerprint Read

The quickest fingerprint reader on this list, with eight unlock methods attached. That combination is rare: most locks offering a fast reader give up some of the other ways in.

The on-device AI chip verifies and grants access in under 0.2 seconds at a claimed 99.99 percent accuracy, and it learns over time rather than degrading. Access data is encrypted with AES128 and kept on the lock, which is the privacy answer to owners who dislike sending fingerprints to a cloud.

Eight ways in means fingerprint, app, authorised access, fob card, code, shared code, voice through the optional gateway and a mechanical key. Four password modes, one-time, duration, permanent and recurring, plus an anti-peeping privacy code and active intrusion lockouts, cover the situations people usually forget to ask about.

Power is four AA or LR6 alkaline cells, not included, good for roughly 12 months, with a low battery indicator, a USB-C emergency port and a safe mode. The body is all-zinc alloy, BHMA and ANSI certified, IP55 rated from minus 35 to 160 degrees, and it auto-detects door handing and installs in about 15 minutes with a screwdriver.

What stands out is how little this lock asks of the person installing it. Door handing is detected automatically, so there is no dip switch to flip, no app step before the door opens and no web account. A screwdriver and fifteen minutes is the honest estimate. For a second or third door on a property, that repeatability is worth more than any single headline feature.

Being able to hand out scheduled codes without an ongoing subscription is also worth saying out loud. Nothing on this list charges monthly for access management, and the multi-tenant setup is free through the KK Home app.

• Fits 1-3/8 to 2 inch doors with 1-1/2 or 2-1/8 inch bores
• Multi-tenant user management and detailed activity logs in the KK Home app
• Silent mode and away mode for travel periods
• Remote lock and unlock require the separately sold Veise G1 gateway

The eufy Smart Lock C220 has Wi-Fi in the lock itself and no gateway to think about. The Veise takes the edge on reader speed, code modes and how little it depends on the internet, which matters if you run a local setup and would rather the lock did not phone home.

Skip it if you need a handle in the box or if you want voice control without buying another device. Keep a physical key close by either way, because pairing over Bluetooth can fail outright if your phone drifts out of range.

8. Philips Wi-Fi Deadbolt: Best for Heavy Guest Traffic

Built for a door that changes hands constantly. One hundred custom passcodes plus unlimited one-time and scheduled codes is more capacity than almost any other lock here, and it costs nothing extra to hand out.

Five unlock methods cover the app, a passcode, fingerprint, a physical key and voice control through Alexa or Google Assistant. The built-in 2.4 GHz Wi-Fi handles remote lock and unlock without a hub, provided the router is within about 65 feet.

Alerts are where this lock earns its place. Real-time open and lock notifications plus a full access history mean you can see who came by while you were out, which is the feature people with a holiday let or a shared house care about most.

Away Mode is the sleeper feature for travel: it disables every unlock method except the master code until you turn it off, so nobody else can walk in while you are away. The relocking delay is adjustable from 10 to 180 seconds, though without a door sensor it runs purely on a timer and cannot tell whether the door is actually shut.

Being able to answer the door from a phone is the feature people underestimate until they need it. A parent at work, a partner on a long drive, a dog walker who found a parcel in the porch: the open and lock alerts plus the access history turn a smart lock into something closer to an intercom with a key attached.

The Away Mode wording is worth repeating because it is unusual at this level. One master code stays live and everything else stops working until you switch it back, which is a bigger step than most travel modes take. For a house that empties out over a holiday, that single setting does more than a bag of spare keys ever did.

• Screwdriver-only installation on doors 1-3/8 to 2 inches thick
• Physical key fallback keeps you inside during a network or battery failure
• Access history that can be reviewed after the fact
• Batteries are not in the box, so add them to your basket first

The Schlage Encode also holds 100 codes, and adds a physical alarm for forced entry and door movement. Pick the Philips when code volume and travel security lead the list of priorities, and the Schlage when the door itself is what worries you.

Owners flag the missing batteries and the absent door sensor more than anything else. Because the batteries are not in the box, charging the lock at checkout adds a step that saves a return trip later.

9. Philips WiFi Handle Deadbolt: Best for Thinner Doors With a Handle

The pick when your door is thinner than standard and still has a lever handle on it. That combination rules out most full-replacement deadbolts, and it is where returns come from.

Fit is the whole reason to look here: 1-3/8 to 1-3/4 inch doors, narrower than the 2-inch ceiling most handle sets claim. The box contains the matching handle set, so the front door reads as one design instead of a smart deadbolt bolted onto an old lever.

Connectivity is built-in 2.4 GHz Wi-Fi with no hub or bridge, but the lock wants to be within about 33 feet of the router with few obstacles between, which is tighter than most competitors and worth checking before you commit. Voice control works with Alexa and Google Assistant, and the Philips Home Access app covers remote lock and unlock, code and fingerprint management, lock status and real-time access history.

Four PIN types are supported, permanent, one-time, periodic and recurring, which covers family, guests, a housekeeper on a schedule and short-let turnovers without you editing a code each time. Fingerprint access reads in 0.3 seconds, and the keypad is back-lit with an anti-peeping password and anti-drill construction.

Getting both halves of a door set to match is the underrated part of this pick. The Philips brings its own lever, its own finish and its own keypad, so a thin front door does not end up with a smart deadbolt that looks bolted onto a lever handle from a different era.

It is one of only two handle sets in this roundup, and the quicker of the two to install. The Wi-Fi radius is the part to check honestly rather than optimistically: thirty-three feet is close to the length of a small flat, and every wall between the lock and the router eats into it.

• Up to six months of battery life with a low battery alert
• Relocking delay adjustable from 0 to 180 seconds in the app
• Uses standard 1.5V alkaline cells only, no lithium or rechargeable
• Opening direction must be reset for doors that swing the other way

The other handle set here is the Veise VE06-H, which fits thicker doors up to 2 inches but expects three pre-drilled holes at set spacing. On a thinner front door with no fresh drilling to do, the Philips is the safer purchase and still ships the whole set in one box.

Owners most often mention that auto-lock ships switched off and has to be turned on in the app. Do that before you leave the house, not after, because a lock that never relocks is the whole failure this category is meant to solve.

10. Tapo DL110: Best for Quiet Early Mornings

The highest-rated lock here and the only one with a rechargeable battery. That combination answers the two complaints owners raise most often: replacing cells twice a year, and the noise a deadbolt makes at six in the morning.

The removable rechargeable pack is rated for up to a year of continuous operation and charges over a built-in USB-C port, so there is nothing to buy twice a year. Fingerprint reads take 0.42 seconds and store up to 100 prints, and owners with wet or dirty hands report the sensor still works.

Six access methods cover fingerprint, keypad passcodes, the Wi-Fi app, close-range Bluetooth, a smart home assistant and the included backup keys. Resident profiles hold permanent codes, and one-time and scheduled guest codes cover visitors without handing over the resident code.

The details that separate it from the pack: a Schlage-compatible keyway, so you can rekey the cylinder to match the rest of your doors instead of carrying a one-off key, rubber door gaskets on both sides that protect the finish and damp movement, and a BHMA Grade 2 certification that is a step above the Grade 3 most of this list carries.

The rechargeable pack is the quiet hero. Every other lock on this list asks you to remember batteries twice a year, usually at the least convenient moment, and the warnings on Wi-Fi models tend to arrive late. Pull this one out, plug it into a USB-C cable when the app nags, and put it back. Owners who have lived with it report the year-long estimate holds up in ordinary use.

Quiet operation matters more than it sounds. A household with a light sleeper, a baby, or a night-shift worker notices a deadbolt’s knock immediately, and this mechanism is described as quieter than most smart deadbolts on the market.

• Installation is 10 to 15 minutes on a standard 2-1/8 inch deadbolt opening
• Two Schlage-compatible backup keys in the box
• Relocking with one-touch locking from the keypad
• Each lock is programmed separately, so prints do not copy between locks

The eufy Smart Lock C220 is the closest thing on this list, with a fingerprint reader and built-in Wi-Fi of its own. The Tapo swaps eight AA cells for one rechargeable pack and carries the higher BHMA grade, though the eufy is the easier choice if you already run eufy devices.

Two quirks to know about. Keypad digits stay invisible until the screen is touched, which slows down anyone entering a code, and the doorbell button is sensitive enough to send false notifications. Reviewers also point out there is no open API, Matter or Home Assistant support, so automations stay inside the Tapo cloud.

How to Choose Smart Locks During Prime Big Deal Days

Deals move fast and door specs do not. Measure first, then buy. Most returns in this category come from a door that was never measured, not from a lock that was a poor deal.

Security and Access Features

Start with how many people need in, and how often that changes. Up to 100 codes covers a busy household or a small property; 250 or more, as on the Veise VE06-H, is aimed at shared houses and short-term rentals where codes turn over weekly. For anyone running a rental or a holiday let, our guide to smart locks for Airbnb hosts covers the code-expiry workflow in more detail.

One-time passcodes matter more than most buyers expect. The TEEHO TE002 and the Aqara Smart Lock U100 both issue codes that delete themselves after a single use, which removes the whole problem of a guest keeping a working number. Anti-peeping passcodes, wrong-password lockouts and built-in alarms for forced entry are the security features that separate a residential lock from a toy, and the Schlage Encode carries a customizable one out of the box.

If you want more detail on keypad behavior, the round-up of smart locks with keypads compares silent mode, touch visibility and anti-peeping digits across the category.

Connectivity and Smart Home Compatibility

Three tiers exist, and the difference is about hardware you have to buy. Built-in Wi-Fi locks such as the Schlage Encode, the eufy Smart Lock C220, the Philips Wi-Fi Deadbolt and the Tapo DL110 talk to your router directly. Bluetooth-only or offline locks like the TEEHO TE002 work with no network at all. Bluetooth locks that need a gateway, such as both Veise models, work locally but need the Veise G1 or G2 gateway for remote access.

Matter over Thread changes the answer for people who want one app for everything. The Ultraloq Bolt SE is the only lock here with both built-in Wi-Fi and Matter over Thread, but the Thread features need a Thread Border Router in the house. The Aqara Smart Lock U100 is the opposite bet: excellent inside Apple Home with Home Key, and a Zigbee hub for everything else.

Ask one question before checkout: which phone app will you still be using in three years? If the answer is Home Assistant or SmartThings, favour Matter or Zigbee over a single-brand cloud. Lock-in, not hacking, is what strands people.

Power, Battery Life and Maintenance

Battery figures are the most quoted and least comparable spec in this category. The Tapo DL110 uses a removable rechargeable pack rated for about a year. The TEEHO TE002 and the Veise VE017 claim around 12 months on four AA cells. The Schlage Encode and the Philips WiFi Handle Deadbolt sit at roughly six months, and the eufy Smart Lock C220 at about eight.

Treat every one of those as a ceiling rather than a promise, because Wi-Fi models wake up constantly and heavy cycling drains them faster. Two details decide how annoying this is: whether the batteries come in the box, since the TEEHO TE002, both Veise models and both Philips locks do not include them, and whether there is a USB-C emergency port, which the Aqara U100 and the Tapo DL110 both have.

Every lock in this roundup keeps a physical key override. Do not bury it in a drawer you cannot reach from the outside, and change the cylinder rather than the battery when you move.

Door and Installation Compatibility

Measure four things before you order: door thickness, the backset distance from the door edge to the spindle, the bore diameter, and the swing direction. Most locks here fit doors between 1-3/8 and 2 inches thick, but the Philips WiFi Handle Deadbolt stops at 1-3/4 inches and the TEEHO TE002 requires a 2-1/8 inch bore with no smaller alternative.

Retrofit versus full replacement decides your options more than price does. A lock that swaps an existing deadbolt, like the eufy Smart Lock C220 or the Tapo DL110, is renter-friendly because no new holes are drilled. A handle set such as the Veise VE06-H expects three pre-drilled holes at fixed spacing and is a bigger job on an uncut door.

If you rent, do not drill anything. Our guide to smart locks for renters covers which changes you can make without landlord approval, and interior doors are a different sizing problem entirely, covered in smart locks for interior doors.

Good to know: what happens when things go wrong. Every lock here has a physical key override. Two of them, the Aqara Smart Lock U100 and the Tapo DL110, also carry a USB-C port, so a flat battery can be revived with a phone charger and a cable. The rest rely on changing cells before the warning gets serious.

Doors That Are Not a Standard Entry Door

Sliding patio doors, French double doors and gates need a different category of lock, usually a surface-mounted padlock-style deadbolt rather than a cylindrical deadbolt. None of the ten locks on this list is designed for a sliding track, so check the panel thickness and the rail clearance before assuming a deadbolt will hold.

Double doors need a coordinating or master lock so one door stays shut when the other opens, and French pairs need an astragal or a drop bolt on the inactive leaf. For those doors, read our picks for smart locks for sliding patio doors instead of forcing this roundup onto hardware it was not built for.

How to Shop Smart Lock Deals During the Sale

Smart lock listings get restocked and renamed constantly, so read the page itself before you commit. Confirm the exact model number, since two Philips locks and two Veise locks appear here with different fit ranges and different hub requirements. Check what is in the box, because four of these omit batteries and two need a gateway you do not have. Note whether the offer is new or renewed, and who the seller is, because a marketplace seller changes the warranty story. Most offers need a Prime membership and the figures change through the event, so look again on the day you intend to buy.

• Match the model number to the fit range before you commit to anything
• Check whether batteries, a gateway or a bridge are in the box or extra
• Confirm the seller and whether the unit is new or renewed
• Confirm the door thickness, bore size and swing direction against your measurements
• Make sure a physical key override is included, every model here has one
• Reopen the listing on the day of purchase, pricing moves during the sale

Frequently Asked Questions

Final Verdict: Best Amazon Prime Big Deal Days Smart Lock Deals

Buy the Schlage Encode, our Editor’s Choice, if you want one lock that owners describe as dependable over the long run, with built-in Wi-Fi and no hub. Buy the TEEHO TE002, our Budget Pick, if the total matters more than remote access and you want twenty fingerprints and twenty codes for the least money here.

Beyond those two, the Ultraloq Bolt SE is the pick for a Matter over Thread house that does not want a hub, the eufy Smart Lock C220 is the pick for fingerprint accuracy and a broad set of unlock methods, and the Aqara Smart Lock U100 is the pick for an all-Apple household that lives on Apple Home Key.

For a full front door rather than a deadbolt swap, the Veise VE06-H gives you a matching handle set with 250 or more codes. The Veise VE017 has the quickest fingerprint reader here and four password modes, the Philips Wi-Fi Deadbolt handles the heaviest guest traffic, and the Philips WiFi Handle Deadbolt fits thinner doors with a lever. The Tapo DL110, our pick for quiet homes, has the highest rating in the roundup and the only rechargeable battery.

Measure your door, decide between built-in Wi-Fi and a hub-based setup, then watch the listing through the event.