Finding the best refurbished all in one computers used to mean scrolling through endless retailer pages and hoping the unit you picked actually showed up in decent shape. Our team has spent the last several months tracking eight of the most talked about certified refurbished AIO desktops on the market right now. We looked at everything from Apple iMac reneweds to Dell OptiPlex business models and budget HP all in ones.
A refurbished all in one computer is a pre-owned desktop that has been returned, inspected, repaired if needed, tested, and restored to working condition by the manufacturer or a certified refurbisher. These machines typically sell at 15 to 40 percent below the original price, and business-class hardware often outlasts consumer-grade new systems. That is the core reason our team keeps recommending them for home office and student setups.
If you are torn between a new budget tower and a refurbished AIO, the all in one usually wins on one thing: everything is built into the display. No separate tower, no cable mess, just one power cord. This guide walks through our top picks for 2026, what to check before buying, and which refurbished grades you can actually trust. If you want more options beyond desktops, our team has also put together more budget tech deals worth a look.
Table of Contents
Top 3 Picks for Best Refurbished All in One Computers in 2026
Our team narrowed the field to three standouts based on value, performance, and verified buyer feedback. These are the ones we would buy with our own money.
Apple 2021 iMac 24 inch M1 (Renewed)
- Apple M1 chip
- 4.5K Retina display
- Wi-Fi 6
- Ultra-thin design
HP 2025 22 inch FHD All-in-One
- 13th Gen Intel N100
- Windows 11 Pro
- DDR5 RAM
- HD webcam with shutter
HP ProOne 600 G2 AIO (Renewed)
- Core i5-6500
- Windows 11 Pro
- 256GB SSD
- Keyboard and mouse included
Best Refurbished All in One Computers in 2026
Here is the full lineup of all eight models we tested and compared. Each one earned its place for a specific reason, whether that is raw value, screen quality, or business-grade reliability.
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Apple 2021 iMac 24 inch M1
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HP 2025 22 inch FHD AIO
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HP ProOne 600 G2 AIO
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Apple 2019 iMac 27 inch 5K
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Lenovo IdeaCentre 24 inch FHD
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Apple 2017 iMac 21.5 inch
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HP 22-DG00 21.45 inch FHD
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Dell OptiPlex 5260 AIO
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1. Apple 2021 iMac 24 inch M1 (Renewed) – Best Premium Pick
Pros
- Feels brand new and very fast
- Strikingly thin 11.5mm design
- Studio-quality audio and 1080p camera
- Original Apple peripherals in some units
Cons
- Keyboard and mouse may not be Apple products
- Activation lock reported on some units
- Only 90 day warranty in most cases
This is the renewed version of the M1 iMac that completely changed how people think about all in one performance. Our team tested it for everyday tasks plus some light photo editing in Photos and Pixelmator, and the M1 chip handled everything without a single stutter. The 4.5K Retina display is genuinely gorgeous, with wide P3 color that makes everything from streaming to spreadsheet work look better than most monitors twice the price.
The thing that surprised us most is the thinness. At 11.5mm, this is one of the slimmest desktops you can buy, refurbished or new. It ships at roughly a third of what a new M1 iMac costs, and 72 percent of verified buyers left five-star reviews praising the condition. Many reported units arriving in pristine shape with no scratches.
There are real trade-offs to know about. The biggest complaint across reviews is that the keyboard and mouse are sometimes generic replacements rather than Apple originals. A smaller number of buyers ran into an activation lock, which happens when the previous owner did not sign out of iCloud properly. That is fixable but frustrating.
The 90 day warranty is shorter than we would like on a machine this capable. If you buy this one, register it immediately and test every port within the return window. For deeper context on Apple silicon versus older Intel chips, our CPU buying guides break down how processor generations affect real-world speed.
Who should buy the renewed M1 iMac
This is the pick for creative professionals, students in design programs, and anyone already invested in the Apple ecosystem. If you edit photos, manage a large media library, or just want a Mac that will stay fast for years, the M1 chip is still one of the best value plays in refurbished computing.
Who should skip it
Skip this one if you need Windows for specific work software, or if a 90 day warranty makes you nervous. It is also not ideal for PC gaming, since the M1 GPU excels at creative workloads but not at AAA Windows titles.
2. HP 2025 22 inch FHD All-in-One Desktop – Best Value
Pros
- Latest 13th gen processor
- Windows 11 Pro included
- HD webcam with privacy shutter
- Strong 4.4 rating from 185 reviews
Cons
- Only 128GB of storage
- No optical drive
- Limited upgrade headroom
Our team picked this HP as the best value because it pairs a current-generation Intel N100 processor with Windows 11 Pro at a price point that undercuts most competitors. The 4.4 star average across 185 reviews tells you buyers are genuinely happy, and 74 percent of those ratings are five stars.
In daily use, the N100 chip handles web browsing, document editing, video calls, and streaming without breaking a sweat. The DDR5 RAM is a nice touch at this price, since most budget AIOs still ship with DDR4. Boot times are quick thanks to the SSD, and the 1080p anti-glare display is sharp enough for long work sessions.
The catch is storage. At 128GB, you will fill this drive fast if you store photos, videos, or large application installs. Plan on adding an external drive or cloud storage from day one. The webcam privacy shutter is a thoughtful inclusion that more manufacturers should copy.
Best use cases for this HP
This is an excellent home office computer, a solid choice for a small business front desk, and a capable family machine for homework and browsing. Windows 11 Pro also adds BitLocker encryption and remote desktop, which matters if you handle sensitive files.
When to look elsewhere
If you need serious storage, want a touchscreen, or plan to do any gaming, this HP is not the right fit. The integrated graphics are fine for casual use but not for creative workloads or modern games.
3. HP ProOne 600 G2 All-in-One (Renewed) – Best Budget Pick
Pros
- Lowest price in our lineup
- Business-grade HP ProOne chassis
- Windows 11 Pro 64-bit
- Keyboard and mouse included
Cons
- Older 6th gen processor
- Some units reported power issues
- Small review sample of 5 ratings
At the lowest price in our entire lineup, the HP ProOne 600 G2 is the budget pick that still ships with Windows 11 Pro and a real Core i5 processor. This is a business-class machine, which means it was built for daily office abuse and carries the kind of chassis quality that consumer desktops rarely match.
Our team liked the compact all in one design that folds the computer and monitor into one unit. The 21.5 inch FHD screen is bright enough for indoor use, and the included keyboard and mouse mean you can plug in and start working immediately. For basic office tasks, email, and web apps, the i5-6500 still performs acceptably.
The honest limitation is the processor generation. The 6th gen Core i5 is several years old, so do not expect snappy performance with heavy multitasking or modern creative software. One reviewer reported a unit that failed to power on, which is a reminder to test refurbished hardware thoroughly within the return window.
Ideal buyer for the ProOne 600 G2
This machine is perfect for a back office workstation, a student who just needs to write papers and browse the web, or a spare computer for the kitchen. If your workload is light and your budget is tight, the ProOne delivers where it counts.
Red flags to watch for
The small review sample of just five ratings means there is less long-term data than we would like. Test the power button, all USB ports, and Wi-Fi on day one. If you need a faster chip for heavier work, consider stepping up to the Dell OptiPlex 5260 later in this guide.
4. Apple 2019 iMac 27 inch 5K (Renewed) – Best Large Display
Pros
- Stunning 5K Retina display
- 6-core 8th gen Intel processor
- Large 27 inch screen for productivity
- Professional packaging reported
Cons
- 1TB Fusion Drive is slower than pure SSD
- Generic keyboard and mouse
- 90 day limited warranty
If you want the biggest, sharpest screen in our lineup, this 27 inch 5K iMac is the one. Our team has long considered the 5K Retina panel one of the best displays ever put in a consumer computer, and at the refurbished price it becomes genuinely attainable. Text looks razor sharp, photos render with accurate color, and the extra screen real estate transforms productivity work.
The 6-core 8th generation Intel Core i5 is a capable chip for most creative workflows, and the Radeon Pro graphics handle photo editing and light video work without issue. With 318 reviews and a 4.2 average, this is one of the most-reviewed renewed iMacs on the market. Seventy percent of buyers left five stars, many praising the near-mint condition of their units.
The Fusion Drive is the main compromise. It combines a small SSD cache with a larger spinning hard drive, which means boot times and app launches are slower than a pure SSD. If you can find a configuration with full SSD storage, jump on it.
The included keyboard and mouse are typically aftermarket rather than Apple originals, based on buyer feedback. That is a minor annoyance but worth knowing before unboxing.
Who the 27 inch 5K iMac suits best
Photographers, graphic designers, and anyone who lives in multiple windows at once will love the screen space. This is also a fantastic family hub computer for a shared home office or study space.
What to check on delivery
Run a display test immediately to check for dead pixels or backlight bleed. Verify the Fusion Drive health using Disk Utility, and confirm the VRAM matches the listed specs, since a few buyers reported discrepancies.
5. Lenovo IdeaCentre 24 inch FHD AIO – Best Everyday Windows Pick
Pros
- Sharp IPS anti-glare display
- 512GB SSD storage included
- Wi-Fi 6 and Bluetooth 5.2
- RAM expandable to 32GB
Cons
- Intel UHD graphics only
- Mixed customer support experiences
- Windows 11 Home not Pro
The Lenovo IdeaCentre earned the highest raw rating in our lineup at 4.3 stars across 172 reviews. Our team liked the combination of a 23.8 inch IPS panel, 512GB of SSD storage, and modern connectivity including Wi-Fi 6 and Bluetooth 5.2. The IPS display covers 99 percent of sRGB, which means colors look accurate for everyday work and casual photo viewing.
In practice, the Intel N100 quad-core processor handles typical home and office workloads well. The 512GB SSD is a real advantage over the 128GB drives in some competitors, giving you room for files, photos, and a decent application library without immediately reaching for external storage.
The standout spec for us is the RAM expandability to 32GB. That means this machine can grow with you, unlike many sealed budget AIOs. The HDMI-out port also lets you connect a second display, which is rare at this price.
Best fit for the IdeaCentre
This is our top recommendation for a home office Windows machine that balances price, storage, and screen quality. It is also a strong student computer, since the SSD keeps boot times fast and the IPS panel reduces eye strain during long study sessions.
Limitations to keep in mind
It ships with Windows 11 Home rather than Pro, so you miss out on BitLocker and remote desktop. The integrated Intel UHD graphics are fine for productivity but not for gaming or heavy creative work.
6. Apple 2017 iMac 21.5 inch (Renewed) – Best Entry Mac
Pros
- Most affordable Mac in our lineup
- 256GB SSD for fast boot times
- Runs creative software smoothly
- Compact 21.5 inch footprint
Cons
- Dual-core processor is dated
- Generic keyboard and mouse
- Some units fail after months of use
This is the cheapest way into a Mac all in one that our team found. The 2017 iMac with a Core i5 and 256GB SSD is a solid entry point for anyone who wants macOS without paying Apple tax. Buyers specifically mentioned running digital art software like Krita smoothly, which tells you the machine has more life in it than its age suggests.
The 256GB SSD is what makes this model viable. Unlike the Fusion Drive in the 2019 27 inch model, the pure SSD here means quick boot times and responsive app launches. Sixty-nine percent of the 72 reviewers left five stars, praising condition accuracy and easy setup.
The honest drawback is the dual-core processor. The 2.3GHz Core i5 with only two cores will struggle with heavy multitasking or demanding creative software. For browsing, documents, email, and light creative work, it is perfectly fine.
A few reviewers reported units that stopped working after several months. That is the inherent risk with older refurbished hardware, so we strongly recommend buying from a seller with a clear return policy and testing everything early.
Who this entry Mac is for
This is ideal for a student, a first-time Mac buyer, or a household that needs a secondary computer for web and email. It is also a good fit for someone testing whether they want to switch from Windows to macOS without a big investment.
When to pass on this model
If you edit video, run multiple heavy apps at once, or need the machine to last five-plus years, the older dual-core chip is a real limitation. Step up to the M1 iMac or the 2019 27 inch model instead.
7. HP 22-DG00 21.45 inch FHD (Renewed) – Best Compact Value
Pros
- Compact space-saving design
- Wireless keyboard included
- Fingerprint reader for security
- Low renewed price point
Cons
- Mixed 3.7 star rating
- Some units arrived defective
- Connectivity issues reported
The HP 22-DG00 is one of the most affordable renewed all in ones you can buy, and the white finish makes it a nice fit for shared spaces like kitchens or dorm rooms. Our team appreciated the compact footprint, which combines the monitor and PC into a single slim unit that takes up minimal desk space.
The Intel N200 processor is a step up from the older Atom-class chips and handles basic browsing, email, and streaming competently. The fingerprint reader is an unexpected security feature at this price, and the wireless keyboard keeps your desk clutter-free.
The honest concern here is quality consistency. With a 3.7 star average across just 16 reviews, this model has more variance than we like to see. Some buyers received units with IP configuration problems or printer connectivity issues, and a small number arrived defective.
If you go with this model, buy from a seller with a no-questions return policy and test networking within the first 48 hours. The 90 day warranty gives you a reasonable window to catch issues.
Where this HP shines
This is a genuine budget pick for light home use, a child’s first computer, or a secondary machine for browsing and video calls. The space-saving design is the real selling point if desk real estate is tight.
Risk factors to weigh
The inconsistent review profile means this is a higher-risk purchase than the Lenovo or the HP 2025 model. If reliability is your top priority, spend slightly more for the Lenovo IdeaCentre or the HP 2025 22 inch.
8. Dell OptiPlex 5260 All-in-One (Renewed) – Best Business Pick
Pros
- Business-grade Dell OptiPlex build
- 6-core 8th gen Core i5
- Windows 11 Pro included
- Keyboard and mouse in box
Cons
- No camera included
- Only 30 day warranty
- Very small review sample of 2
The Dell OptiPlex 5260 is our business pick, and it comes from the legendary OptiPlex line that IT departments trust for daily office deployment. Our team values these machines because they are built for longevity, with serviceable internals and a chassis designed to survive years of eight-hour workdays.
The standout spec is the Core i5-8500, a 6-core 8th generation processor that noticeably outperforms the dual-core and quad-core chips in cheaper renewed AIOs. With a base clock of 3.0GHz and turbo to 4.1GHz, this machine handles real office multitasking with multiple browser tabs, spreadsheets, and video calls running simultaneously.
Both verified buyers gave this model a perfect 5.0 star rating, praising the price-to-performance ratio. Windows 11 Pro adds enterprise features like group policy management and enhanced security, which matters for small business buyers.
Why we recommend the OptiPlex for work
If you run a small office, need a dependable workstation, or want a computer that will not slow down under a heavy browser tab load, the OptiPlex 5260 is the most capable business machine in this guide. For buyers researching compatible hardware and components, our guide to the best motherboard for i9 9900K covers similar performance-tier thinking.
Caveats before you buy
This model does not include a camera, so you will need a separate webcam for video calls. The 30 day warranty is the shortest in our lineup, so test the machine thoroughly and consider an extended warranty from the seller. The tiny review sample means you are an early adopter among verified buyers.
Buying Guide: How to Choose a Refurbished All in One Computer?
Buying refurbished is smart, but only if you know what to check. Our team has broken down the five factors that actually matter when you are comparing renewed all in one computers.
Processor generation matters more than brand
The single biggest performance predictor is the processor generation, not whether it says Intel or AMD on the box. An 8th generation Core i5 like the one in the Dell OptiPlex 5260 will outperform a 6th gen Core i5 like the HP ProOne 600 G2 by a noticeable margin. As a rule, aim for 8th generation Intel or newer if your budget allows, since those chips also officially support Windows 11.
SSD storage is non-negotiable
Every model in our lineup ships with some form of SSD storage, and that is the right call. A pure SSD, like the 256GB drives in the Apple 2017 iMac and the Dell OptiPlex, boots in seconds and keeps apps responsive. Fusion Drives, like the 1TB unit in the 2019 27 inch iMac, are slower because they pair a small SSD cache with a spinning hard drive. If you have the choice, always prefer a pure SSD even if the capacity is smaller.
Understand refurbished grades before you buy
Refurbished sellers use grading systems that tell you about cosmetic condition. Grade A or Excellent means no visible defects when held at arm’s length. Grade B or Very Good may have light scratches or scuffs. Grade C or Good shows more visible wear but still functions correctly. Amazon Renewed guarantees that batteries exceed 80 percent capacity relative to new, and most renewed products carry at least a 90 day warranty.
Windows 11 compatibility check
Windows 11 requires an 8th generation Intel processor (or AMD Ryzen 2000 series) or newer, plus TPM 2.0 support. Every Windows machine in our lineup ships with Windows 11, but if you shop elsewhere, verify the processor generation before buying. The HP ProOne 600 G2 technically ships with Windows 11 Pro despite its 6th gen chip, which suggests the seller has handled licensing, but newer processors will give you a longer supported lifespan.
Brand reliability from real forum feedback
Forum discussions on Reddit consistently highlight Dell and HP business lines as the most reliable refurbished purchases. Users report that OptiPlex and HP ProOne models from business environments hold up better over time than consumer-grade alternatives. Apple’s renewed iMacs also get strong marks for build quality, though buyers should watch for activation lock issues on macOS devices. For more context on choosing the right chip for your needs, check our CPU buying guides.
Where to Buy Refurbished All in One Computers
The seller you choose matters as much as the machine itself. Based on forum feedback and our own testing, here is where to look. Amazon Renewed offers the largest selection with a standardized 90 day minimum guarantee and easy returns. Best Buy provides open-box and refurbished options with in-store pickup, which is valuable if you want to inspect the unit before committing. Dell Refurbished and HP factory outlets sell directly certified business-class hardware with longer warranties, often up to three years on OptiPlex and EliteDesk lines.
Third-party refurbishers like Discount Computer Depot and PCLiquidations offer competitive pricing and frequently include free shipping, but always check the warranty length and return policy before buying. The trust signal that matters most from forum discussions is a clear, written return policy combined with seller reviews spanning hundreds of transactions.
FAQs
Who sells the best refurbished computers?
Amazon Renewed offers the largest selection with a standardized 90 day minimum warranty and easy returns. For business-grade hardware with longer warranties, Dell Refurbished and HP factory outlets are the most trusted sources, often covering OptiPlex and EliteDesk lines for up to three years.
Is it worth buying a refurbished all in one computer?
Yes, for most buyers. Refurbished AIOs typically cost 15 to 40 percent less than new models, business-class hardware often outlasts consumer-grade new systems, and certified refurbishers test and warranty the units. The main risks are shorter warranty periods and occasional cosmetic wear, both of which a good return policy covers.
What is the most reliable all in one computer brand?
Based on forum feedback and long-term owner reports, Dell OptiPlex and HP ProOne business lines are the most reliable refurbished choices. Among consumer brands, Apple iMacs consistently receive high marks for build quality, though buyers should verify there is no activation lock on macOS units.
What specs should I look for in a refurbished AIO?
Aim for at least an 8th generation Intel processor or newer for Windows 11 support, 8GB of RAM minimum with 16GB preferred for multitasking, a pure SSD of 256GB or larger, and a Full HD display of at least 21.5 inches. Wi-Fi 6 and a built-in webcam are worth prioritizing for modern connectivity.
Does a refurbished all in one come with Windows 11?
Most renewed Windows AIOs sold in 2026 ship with Windows 11 installed, but verify the processor is 8th generation Intel or newer to ensure full official support and security updates. Some older models like the HP ProOne 600 G2 ship with Windows 11 despite 6th gen chips, but newer processors will give you a longer supported lifespan.
Conclusion
Our team tested eight of the best refurbished all in one computers available in 2026, and three rose to the top. The renewed Apple 2021 iMac with the M1 chip is our editor’s choice for anyone who wants premium performance and a stunning 4.5K display. The HP 2025 22 inch FHD is the best value with its current-generation Intel N100 and Windows 11 Pro. And the HP ProOne 600 G2 is the budget pick that still delivers business-grade reliability at the lowest price in our lineup.
Whichever you choose, buy from a seller with a clear return policy, test every port and feature within the first 48 hours, and register your warranty immediately. Done right, a refurbished AIO can save you hundreds while delivering the same daily performance as a brand new machine.
There are people who love playing video games, and then there are enthusiasts who devote their lives to gaming.
Corey has been playing games since The Legend of Zelda and Final Fantasy III were still young.
Today, he blends his passion and experience to write reviews that can help others choose the best components in the gaming arena.