6 Best Alternatives to the Apple 21.5-Inch iMac Core i5 (2026)
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
You are looking for apple 21 5 imac desktop computer alternatives to replace or upgrade your current setup. The original Apple 21.5-Inch iMac Core i5 offers solid everyday performance with its i5 processor and 1TB HDD storage. It fits users who prioritize large storage space and Mac OS stability over raw speed. However, you might want something else due to the aging hardware or the specific operating system. You may need a different screen size, more modern connectivity, or a Windows environment for better software compatibility.
We selected these alternatives because their specifications overlap with the original iMac in key areas like screen size and core processor type. This list includes other 21.5-inch models from Apple and HP, as well as a 24-inch Cybrimax option. Each product provides a compact all-in-one design suitable for home or office use. You can choose based on whether you need more storage, faster SSD speeds, or a different brand ecosystem. The specs listed here help you compare memory, storage capacity, and display dimensions directly against your current machine.
How these alternatives compare
Apple iMac 21.5-Inch Core i5 Desktop
This Apple iMac shares the same 21.5-inch screen and Core i5 processor as the original. It keeps the 8GB of RAM and the large 1TB hard drive. The main difference is the model number and slightly different physical dimensions. It offers the same Mac OS stability and storage capacity. You should pick this if you want the same performance but find a better price or availability for this specific model. It is ideal for users who need plenty of space for files without upgrading to faster solid-state storage.
Apple iMac 21.5-Inch Core i5 Desktop
This model swaps the 1TB hard drive for a 256GB SSD. It retains the 21.5-inch display and 8GB of RAM. The SSD provides faster boot times and quicker app loading compared to the original HDD. You lose significant storage space, but gain noticeable speed in daily tasks. Choose this if you prioritize responsiveness over capacity. It suits users who store fewer large files and want a snappier experience. The compact form factor remains similar, making it a good upgrade for those tired of slow hard drive speeds.
HP ProOne 21.5-Inch All-in-One PC
This HP ProOne switches from Mac OS to Windows 11 Pro. It features a 21.5-inch screen, Core i5 processor, 8GB RAM, and a 256GB SSD. You gain access to Windows software and business features, but lose the Apple ecosystem. The SSD is faster than the original HDD, though storage is much lower. Pick this if you need Windows compatibility for work. It is best for business users who require a compact, reliable workstation. You trade Mac simplicity for professional OS capabilities and modern connectivity options.
HP 21.5-inch All-in-One Intel N100 Desktop
This HP uses an Intel N100 processor instead of a Core i5. It keeps the 21.5-inch screen and 8GB of RAM. The N100 is less powerful than the original i5, making it slower for heavy tasks. It lacks listed storage specs, so assume basic capacity. Choose this for light browsing and office work. It fits students or users who need a cheap, space-saving device. You give up processing power for a lower entry point. It is not suitable for demanding applications, but works well for simple home office duties.
Apple iMac 21.5-Inch Core i5 All-in-One
This Apple iMac shares the 21.5-inch screen and Core i5 processor. It differs in physical dimensions and weight, being lighter and slightly wider. Storage is not explicitly listed, but it is likely an SSD variant. It offers a compact form factor for desktops. Pick this if you want a smaller footprint than the original. It suits users who value Apple build quality and a tidy desk setup. You may get faster storage speeds, but confirm the exact capacity. It is a solid alternative for those who prefer a smaller Apple all-in-one design.
Cybrimax 24" i5 AIO Desktop
This Cybrimax desktop features a larger 24-inch screen compared to the 21.5-inch original. It includes a Core i5 processor, 8GB RAM, and a 256GB SSD. The SSD offers better speed than the original HDD. You gain more screen real estate but lose the Apple brand and Mac OS. Choose this for basic multitasking and a wider view. It fits users who want a Windows alternative with a bigger display. You trade ecosystem integration for a larger screen and potentially lower cost. It is practical for home office use without needing macOS.
Quick picks
Our 7 picks
Apple 21.5-Inch iMac Core i5
Best for: everyday Mac users needing 1TB storage
- Processor
- Intel Core i5-7360U
- System Memory
- 8GB DDR4
- Storage Capacity
- 1TB HDD
- Screen Size
- 21.5"
- Display Resolution
- 1920 x 1080
- Graphics
- Intel Iris Plus Graphics 640
This Apple iMac pairs a 2.3 GHz Intel Core i5-7360U processor with 8GB of DDR4 RAM and a 1TB hard drive. The 21.5-inch IPS display delivers 1080p resolution for clear visuals. It runs Mac OS 10.12 and uses Intel Iris Plus Graphics 640. This setup suits users who need reliable performance for everyday tasks and value the classic all-in-one design.
Pros
- 1TB HDD storage capacity
- 21.5-inch 1920 x 1080 IPS display
- Intel Core i5-7360U dual-core processor
- 8GB DDR4 system memory
Cons
- HDD storage is slower than SSD options
- Intel Iris Plus Graphics 640 limits heavy gaming
- Mac OS 10.12 is an older operating system
Good fit if
- You need ample 1TB storage for files
- You prefer the Mac OS ecosystem
- You want a compact 21.5-inch all-in-one
Skip if
- You require fast SSD storage speeds
- You need modern Windows compatibility
- You want high-end dedicated graphics
Verdict: Apple 21.5" iMac Core i5 1TB offers solid everyday performance with its i5 processor and large HDD. It fits users who prioritize storage space and Mac OS stability over raw speed or modern gaming capabilities.
Apple iMac 21.5-Inch Core i5 Desktop
Best for: Mac users needing 1TB of storage
- Processor
- Intel Core i5-7360U
- System Memory
- 8GB DDR4
- Storage Capacity
- 1TB HDD
- Screen Size
- 21.5-inch
- Display Resolution
- 1920x1080
- Graphics
- Intel Iris Plus Graphics 640
This renewed Apple iMac features a 21.5-inch 1080p display and a 7th Gen Intel Core i5 processor. It includes 8GB of RAM and a 1TB hard drive. The system runs Mac OS X and offers four USB 3.0 ports. It suits users who need a reliable desktop for home or small business tasks on a budget.
Pros
- 1TB HDD storage capacity
- Intel Core i5-7360U processor
- 21.5-inch 1920x1080 display
- Four USB 3.0 ports
Cons
- Uses a slower HDD instead of an SSD
- Only 8GB of system memory
- Older 7th generation Intel processor
Good fit if
- You need a large 1TB storage drive
- You prefer the Mac OS X operating system
- You want a budget-friendly all-in-one desktop
Skip if
- You require fast SSD storage speeds
- You need more than 8GB of RAM
- You want the latest processor generation
Verdict: Apple 21.5" iMac Core i5 1TB HDD offers solid storage for Mac users on a budget. It fits those who prioritize capacity over speed and modern hardware.
Apple iMac 21.5-Inch Core i5 Desktop
Best for: Compact home office setups
- Processor
- 2.3GHz Intel Core i5
- System Memory
- 8GB
- Storage Capacity
- 256GB SSD
- Screen Size
- 21.5-inch
- Dimensions
- 6.9 × 20.8 × 17.7 inches
- Weight
- 21 pounds
This Apple iMac features a 21.5-inch display and a 2.3GHz Intel Core i5 processor. It includes 8GB of system memory and 256GB of SSD storage. The unit is renewed with a battery exceeding 80% capacity. It suits users seeking a compact desktop for basic tasks. The silver design fits standard home offices.
Pros
- 2.3GHz Intel Core i5 processor
- 21.5-inch screen size
- 8GB system memory
- 256GB SSD storage
- Silver color finish
Cons
- 256GB storage is smaller than the 1TB option on this list
- Renewed condition with non-original accessories
- 21 pounds weight is heavier than some alternatives
Good fit if
- You need a compact 21.5-inch desktop
- You prefer Apple hardware for everyday use
- You want SSD storage for faster boot times
Skip if
- You require more than 256GB of internal storage
- You want original manufacturer accessories included
- You prefer a lighter all-in-one design
Verdict: Apple 21.5" iMac Core i5 8GB RAM offers reliable performance for standard computing tasks. It is a solid choice for users who value Apple's build quality and compact form factor over maximum storage capacity.
HP ProOne 21.5-Inch All-in-One PC
Best for: business users needing a compact Windows 11 Pro workstation
- Processor
- Intel Core i5-8500T
- System Memory
- 8GB DDR4
- Storage Capacity
- 256GB SSD
- Screen Size
- 21.5"
- Display Resolution
- Full HD
- Operating System
- Windows 11 Pro
The HP ProOne 600 G4 is a 21.5-inch all-in-one desktop with an Intel Core i5-8500T processor and 8GB of DDR4 RAM. It includes a 256GB SSD and runs Windows 11 Pro. This setup offers business-grade connectivity and a Full HD display. It suits you if you need a compact, secure workstation for everyday tasks and multitasking without desktop clutter.
Pros
- Intel Core i5-8500T processor up to 3.5GHz
- 21.5-inch Full HD display integrated into compact frame
- Windows 11 Pro operating system for security
- 256GB SSD for fast boot-ups and multitasking
- Includes keyboard, mouse, and power adapter
Cons
- Only 8GB of system memory limits heavy multitasking
- 256GB SSD storage capacity is small for large files
- 8th Gen processor is older than current standards
Good fit if
- You need a compact desktop with a Full HD screen
- You require Windows 11 Pro for business security features
- You want a complete setup with included peripherals
Skip if
- You need more than 8GB of RAM for professional work
- You require large storage capacity for media libraries
- You prefer the latest generation processors for peak performance
Verdict: The HP ProOne 600 G4 i5 AIO is a solid business-focused all-in-one for users who prioritize Windows 11 Pro and compact design over raw power or large storage.
HP 21.5-inch All-in-One Intel N100 Desktop
Best for: basic home office tasks
- Processor
- Intel N100
- System Memory
- 8GB RAM
- Storage Capacity
- 384GB
- Screen Size
- 21.5"
- Display Resolution
- 1920 x 1080
- Graphics
- Intel UHD Graphics
This HP all-in-one desktop uses an Intel N100 quad-core processor and 8GB of RAM. It features a 21.5-inch 1080p display with an adjustable stand. The system runs Windows 11 Home and includes Wi-Fi 6 and Bluetooth. It offers a 384GB storage capacity. This unit suits students and office workers who need a compact, functional computer for daily tasks.
Pros
- Intel N100 processor with up to 3.4GHz boost clock
- 21.5-inch 1920 x 1080 anti-glare VA display
- Adjustable stand tilts from -6° to 21°
- Includes Wi-Fi 6 and Bluetooth connectivity
- Front-facing 720p camera for video calls
Cons
- Intel UHD Graphics is not suitable for gaming
- 384GB storage capacity is smaller than many competitors
- 8GB RAM may limit heavy multitasking
Good fit if
- You need a compact desktop for basic office work
- You want a built-in webcam and microphone
- You prefer an adjustable viewing angle
Skip if
- You require a dedicated graphics card for gaming
- You need more than 8GB of RAM
- You want a larger than 21.5-inch screen
Verdict: HP 21.5" N100 All-in-One PC is a practical option for light users. It fits students and home offices who prioritize space-saving design over raw power.
Apple iMac 21.5-Inch Core i5 All-in-One
Best for: Compact Apple desktop users
- Processor
- 2.7GHz Core i5
- System Memory
- 8GB
- Storage Capacity
- 256GB Solid State Drive
- Screen Size
- 21.5in
- Operating System
- MacOS 10.12 Sierra
- Dimensions
- 27 × 11 × 24 inches
This Apple iMac pairs a 21.5-inch display with a 2.7GHz Core i5 processor and 8GB of system memory. It includes a 256GB solid state drive and runs macOS 10.12 Sierra. The all-in-one design keeps your desktop tidy. It suits users who prefer the Apple ecosystem and need a compact machine for everyday tasks. You get a reliable build in a silver finish.
Pros
- 2.7GHz Intel Core i5 processor
- 21.5-inch screen size
- 8GB system memory
- 256GB solid state drive
- Compact all-in-one design
Cons
- Older macOS 10.12 Sierra operating system
- Only 8GB of RAM limits multitasking
- 256GB storage fills up quickly
Good fit if
- You want a compact Apple desktop
- You need a reliable machine for basic tasks
- You prefer macOS over Windows
Skip if
- You require the latest software updates
- You need high performance for gaming
- You need more than 8GB of RAM
Verdict: Apple 21.5in iMac Core i5 offers a compact form factor with solid everyday specs. It fits users who value Apple's ecosystem and simple setup over raw power.
Cybrimax 24" i5 AIO Desktop
Best for: basic home office multitasking
- Processor
- Intel Core i5
- System Memory
- 8 GB
- Storage Capacity
- 256 GB SSD
- Screen Size
- 24"
- Display Resolution
- Full HD
- Graphics
- Integrated Graphics
This Cybrimax all-in-one desktop features a 24-inch Full HD display and a Core i5 processor paired with 8GB of RAM. It includes 256GB of SSD storage for fast boot times and app loading. The system runs Windows 11 and connects via WiFi 6 and Bluetooth 5.3. It suits users who need a compact, ready-to-use machine for multitasking and remote work in a small office.
Pros
- 24-inch Full HD display for sharp visuals
- Core i5 CPU with 8GB dual-channel RAM
- 256GB SSD for fast system response
- Built-in WiFi 6 and Bluetooth 5.3
- Preloaded with Windows 11 for immediate use
Cons
- 8GB RAM may limit heavy multitasking
- 256GB SSD storage fills up quickly
- No mention of dedicated graphics capability
Good fit if
- You need a compact desktop for basic office tasks
- You want a plug-and-play Windows 11 system
- You prefer a 24-inch screen size
Skip if
- You require more than 8GB of RAM for professional work
- You need large storage capacity for media libraries
- You are looking for a high-end gaming PC
Verdict: Cybrimax 24-inch All-in-One i5 is a practical entry-level desktop for home office users who value a tidy setup and basic performance. It fits those who prioritize connectivity and ease of use over raw power.
Specifications side by side
| Spec | Apple 21.5-Inch iMac Core i5 | Apple iMac 21.5-Inch Core i5 Desktop | Apple iMac 21.5-Inch Core i5 Desktop | HP ProOne 21.5-Inch All-in-One PC | HP 21.5-inch All-in-One Intel N100 Desktop | Apple iMac 21.5-Inch Core i5 All-in-One | Cybrimax 24" i5 AIO Desktop |
|---|---|---|---|---|---|---|---|
| Processor | Intel Core i5-7360U | Intel Core i5-7360U | 2.3GHz Intel Core i5 | Intel Core i5-8500T | Intel N100 | 2.7GHz Core i5 | Intel Core i5 |
| System Memory | 8GB DDR4 | 8GB DDR4 | 8GB | 8GB DDR4 | 8GB RAM | 8GB | 8 GB |
| Storage Capacity | 1TB HDD | 1TB HDD | 256GB SSD | 256GB SSD | 384GB | 256GB Solid State Drive | 256 GB SSD |
| Screen Size | 21.5" | 21.5-inch | 21.5-inch | 21.5" | 21.5" | 21.5in | 24" |
| Display Resolution | 1920 x 1080 | 1920x1080 | not specified | Full HD | 1920 x 1080 | not specified | Full HD |
| Graphics | Intel Iris Plus Graphics 640 | Intel Iris Plus Graphics 640 | not specified | not specified | Intel UHD Graphics | not specified | Integrated Graphics |
| Operating System | Mac OS 10.12 | Mac OS X | not specified | Windows 11 Pro | Windows 11 Home | MacOS 10.12 Sierra | Windows 11 |
| Memory | 8GB RAM | 8GB RAM | 8GB RAM | 8GB RAM | 8GB RAM | not specified | 8GB RAM |
| Storage | 1TB HDD | not specified | 256GB SSD | 256GB SSD | not specified | not specified | 256GB SSD |
| Use | not specified | not specified | not specified | not specified | not specified | not specified | Business |
| Dimensions | 25 × 8 × 20 inches | 17.7 × 20.8 × 6.9 inches | 6.9 × 20.8 × 17.7 inches | not specified | 19.4 × 6.69 × 15.1 inches | 27 × 11 × 24 inches | not specified |
| Weight | not specified | 18.3 pounds | 21 pounds | not specified | 15 pounds | 12.5 pounds | 22 pounds |
| Color | Silver | Silver | Silver | not specified | White | Silver | Black |
| Model | MMQA2LL/A | A1418 | MMQA2LL/A | 600 G4 All-in-One | HP All In One | DDMD086_8M256D_R | Cybrimax |
| Size | not specified | 21.5" 1080p Display | not specified | not specified | not specified | not specified | not specified |
Frequently asked questions
Can I use these alternatives for light gaming?
These machines are not designed for modern gaming. They rely on integrated graphics and standard Core i5 or N100 processors. You can handle basic titles or older games, but they lack the dedicated GPU power needed for heavy loads. They are built for productivity, web browsing, and media consumption rather than high-performance visual tasks.
Which option offers the best storage capacity?
The top-ranked Apple iMac provides the largest storage space with a 1TB hard drive. This is ideal if you store many files locally. Other models like the third-place Apple unit or the HP ProOne offer only 256GB SSDs. You will need external storage or cloud solutions if you choose those faster but smaller drives.
Is Windows 11 available on these all-in-ones?
Yes, the HP ProOne 21.5-Inch All-in-One PC runs Windows 11 Pro. It is the only Windows machine on this list, making it suitable for business users who need that specific operating system. All other options, including the HP N100 model, run macOS or unspecified OS versions based on their Apple branding.
Do these computers save desk space?
All listed devices are all-in-one designs, meaning the computer components are built into the monitor stand. This reduces cable clutter and footprint. The HP N100 model is particularly compact, weighing just 15 pounds. The Apple units vary in depth but generally maintain a small profile suitable for tight home office corners.
What is the difference between the 21.5 and 24-inch screens?
The Cybrimax model features a 24-inch display, offering slightly more screen real estate than the standard 21.5-inch panels. Most other alternatives, including the Apple and HP options, stick to the 21.5-inch size. The larger screen may benefit users who prefer a wider view for multitasking, while the 21.5-inch models prioritize a compact physical footprint.
Are these machines suitable for basic office work?
Yes, all listed computers are well-suited for standard office tasks. They include 8GB of RAM and Core i5 or N100 processors, which handle word processing, spreadsheets, and web browsing smoothly. The HP N100 model is specifically noted for basic home office tasks, while the Cybrimax i5 model supports light multitasking with ease.