24-Inch vs 21.5-Inch All-In-One Desktops in 2026: Key Differences
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Choosing between a 24-Inch vs 215 inch all in one desktop depends on your specific needs for display and processing power. Both systems offer compact designs that save desk space. The main difference lies in the screen resolution and underlying hardware architecture. One provides a high-density Retina display with Apple silicon, while the other offers a standard Full HD panel with an Intel processor. You must decide which ecosystem and performance tier fits your workflow.
Key differences
| Aspect | Apple iMac 24-Inch M1 Desktop | HP 21.5-inch All-in-One Intel N100 Desktop |
|---|---|---|
| Screen Size | 24-inch | 21.5-inch |
| Display Resolution | 4.5K Retina | 1920 x 1080 |
| Processor | Apple M1 | Intel N100 |
| Graphics | 8-core GPU | Intel UHD Graphics |
| Operating System | macOS | Windows 11 Home |
Which one should you choose?
Choose Apple iMac 24-Inch M1 Desktop if
- You need a sharper 4.5K Retina display for detailed creative work
- You prefer the efficiency and performance of Apple M1 silicon
- You are already invested in the Apple ecosystem with macOS
Choose HP 21.5-inch All-in-One Intel N100 Desktop if
- You require Windows 11 Home for specific software compatibility
- You need a standard 1920 x 1080 resolution for general office tasks
- You want an Intel N100 processor with Intel UHD Graphics
Verdict: The 24-inch iMac suits users who prioritize display quality and Apple ecosystem integration. The 21.5-inch HP desktop is better for those needing Windows 11 and standard office performance. Your choice depends on whether you value high-resolution visuals or Windows compatibility.
Screen Size and Display Quality
screen size
The Apple iMac 24-Inch M1 Desktop features a 24-inch display, offering a larger visual canvas than the HP 21.5-inch All-in-One Intel N100 Desktop. The HP model uses a 21.5-inch panel. A larger screen generally provides more room for multitasking and window management. You get roughly 1.5 inches more diagonal measurement with the Apple option. This difference can matter if you work with multiple applications side by side. The HP unit is slightly more compact, which may fit better in tighter spaces. Both are all-in-one designs, so the footprint difference is minimal. The choice depends on whether you prioritize screen real estate or a smaller physical presence.
display resolution
Display clarity is a major differentiator between these two systems. The Apple iMac 24-Inch M1 Desktop boasts a 4.5K Retina display. This high resolution delivers sharp text and detailed images. In contrast, the HP 21.5-inch All-in-One Intel N100 Desktop uses a 1920 x 1080 Full HD panel. The Apple screen offers significantly higher pixel density. This results in crisper visuals, especially for photo editing or reading fine text. The HP display is adequate for standard office tasks and web browsing. However, it lacks the sharpness of the 4.5K panel. If visual fidelity is important to you, the Apple option provides a superior viewing experience.
processor performance
Processing power varies greatly between these machines. The Apple iMac 24-Inch M1 Desktop is powered by the Apple M1 chip with an 8-core CPU. This chip is known for high efficiency and strong performance in creative workflows. The HP 21.5-inch All-in-One Intel N100 Desktop uses the Intel N100 processor. This is a quad-core chip with a max boost clock of 3.4GHz. The M1 chip generally outperforms the N100 in single-core and multi-core tasks. The HP processor is designed for basic productivity and light media consumption. If you need speed for demanding applications, the Apple M1 is the stronger choice. The Intel N100 is sufficient for everyday web browsing and document editing.
operating system
The software environment differs significantly. The HP 21.5-inch All-in-One Intel N100 Desktop comes with Windows 11 Home. This OS supports a wide range of Windows-specific applications and games. The Apple iMac 24-Inch M1 Desktop runs macOS. This system is optimized for Apple hardware and offers a different user interface. Your choice depends on your software needs. If you rely on Windows-only programs, the HP is the only viable option. If you prefer macOS or use Apple-specific software, the iMac is better. The HP also includes an 8-in-1 docking hub, which may simplify connectivity for Windows users. The Apple system relies on Thunderbolt and USB ports.
storage capacity
Storage options differ in the base configurations provided. The Apple iMac 24-Inch M1 Desktop includes 512GB of SSD storage. The HP 21.5-inch All-in-One Intel N100 Desktop offers 384GB of storage in its base model. The Apple unit provides more internal space for files and applications. Both use SSD technology, which ensures fast boot times and application loading. The HP model mentions an SD card slot for expanded storage via a docking station. However, the internal capacity is lower. If you need more space for large files, the Apple option starts with a larger base. You may need external storage for the HP unit sooner.
Which all-in-one desktop fits your needs
Users needing high-resolution creative display
The Apple iMac features a 24-inch 4.5K Retina display with P3 wide color gamut. This resolution offers significantly sharper text and images than the HP's 1080p panel. The 500 nits of brightness ensures clear visibility in various lighting conditions. You get superior visual fidelity for photo editing or detailed media consumption.
Professionals requiring extensive connectivity options
The HP desktop includes an Ethernet port, HDMI output, and multiple USB-A and USB-C ports. It also supports Wi-Fi 6 and Bluetooth. The iMac lacks an Ethernet port and HDMI. If you need wired network stability or external monitor connections, the HP provides the necessary physical interfaces for your workspace setup.
Budget-conscious buyers seeking value
The HP model runs on an Intel N100 processor with integrated UHD graphics. It includes Windows 11 Home and comes with a docking hub, keyboard, and mouse. This package offers a complete office solution with adjustable stand tilt. It is designed for daily work and study tasks without the premium cost associated with the Apple ecosystem.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Apple iMac 24-Inch M1 Desktop | Users wanting a compact 4.5K display desktop | Check price of Apple iMac 24-Inch M1 Desktop on Amazon |
| 2 | HP 21.5-inch All-in-One Intel N100 Desktop | home offices and students on a budget | Check price of HP 21.5-inch All-in-One Intel N100 Desktop on Amazon |
The products compared
Apple iMac 24-Inch M1 Desktop
Best for: Users wanting a compact 4.5K display desktop
- Screen Size
- 24-Inch (what this guide is about)
- Processor
- Apple M1
- System Memory
- 8GB
- Storage Capacity
- 512GB SSD
- Display Resolution
- 4.5K Retina
- Graphics
- 8-core GPU
View on Amazon: Apple iMac 24-Inch M1 Desktop Affiliate link
This 24-inch iMac features an Apple M1 chip with an 8-core CPU and 8GB of RAM. It includes a 4.5K Retina display and 512GB of SSD storage. The all-in-one design measures 27.2 inches wide and weighs 9.83 pounds. It offers a thin profile with integrated audio and camera hardware. This system suits users seeking a compact, high-resolution desktop for everyday tasks.
Pros
- 24-inch 4.5K Retina display with P3 wide color gamut
- Apple M1 chip with 8-core CPU and 8-core GPU
- 512GB ultrafast SSD storage
- Six-speaker sound system and three-mic array
Cons
- Limited to 8GB of system memory
- Only two Thunderbolt / USB 4 ports available
- No mention of internal expandability for RAM or storage
Good fit if
- You need a vibrant 4.5K display for media consumption
- You want a compact all-in-one with strong integrated audio
- You prefer a thin, stylish design for your desk
Skip if
- You require more than 8GB of RAM for heavy multitasking
- You need extensive port connectivity without using adapters
- You plan to upgrade internal components later
Verdict: Apple iMac M1 24-inch Green delivers a sharp 4.5K screen and efficient M1 performance in a slim chassis. It fits users who prioritize display quality and audio in a space-saving form factor.
HP 21.5-inch All-in-One Intel N100 Desktop
Best for: home offices and students on a budget
- Screen Size
- 21.5-Inch (what this guide is about)
- Processor
- Intel N100
- System Memory
- 8GB DDR5
- Storage Capacity
- 128GB SSD
- Display Resolution
- 1920 x 1080
- Graphics
- Intel UHD Graphics
View on Amazon: HP 21.5-inch All-in-One Intel N100 Desktop Affiliate link
This HP all-in-one desktop features a 21.5-inch FHD display and an Intel N100 processor. It includes 8GB of RAM and a 384GB storage drive. The unit runs Windows 11 Home and connects via Wi-Fi 6. You get an adjustable stand and multiple ports. It suits students and office workers needing a compact, functional machine for daily tasks.
Pros
- 21.5-inch 1920x1080 anti-glare VA display
- Intel N100 quad-core processor
- 8GB DDR5 RAM and 384GB storage
- Adjustable stand tilts from -6° to 21°
- Wi-Fi 6 and Bluetooth connectivity
Cons
- Intel UHD Graphics limits gaming performance
- 21.5-inch screen is smaller than 24-inch models
- 8GB RAM may struggle with heavy multitasking
Good fit if
- You need a compact desktop for office work
- You want a budget-friendly Windows 11 system
- You prefer a smaller screen for tight spaces
Skip if
- You require high-end gaming capabilities
- You need a larger 24-inch display
- You demand more than 8GB of RAM
Verdict: HP 21.5" Intel N100 All-in-One is a practical desktop for students and home offices who prioritize space-saving design over raw power. It fits users who need reliable web browsing and document editing on a modest screen.
Specifications side by side
| Spec | Apple iMac 24-Inch M1 Desktop | HP 21.5-inch All-in-One Intel N100 Desktop |
|---|---|---|
| Processor | Apple M1 | Intel N100 |
| System Memory | 8GB | 8GB DDR5 |
| Storage Capacity | 512GB SSD | 128GB SSD |
| Screen Size | 24-inch | 21.5" |
| Display Resolution | 4.5K Retina | 1920 x 1080 |
| Graphics | 8-core GPU | Intel UHD Graphics |
| Operating System | not stated | Windows 11 Home |
| Memory | 8GB RAM | 8GB RAM |
| Storage | 512GB SSD | 128GB SSD |
| Dimensions | 27.2 × 6.89 × 23.8 inches | 24 × 21 × 7 inches |
| Weight | 9.83 pounds | 18 pounds |
| Size | 8GB - 512GB | not stated |
| Color | Green | White |
| Model | MGPG3LL/A | HP22 |
Frequently asked questions
Is a 24-inch all-in-one better for multitasking than a 21.5-inch model?
Yes, the larger screen provides more desktop real estate. The Apple iMac 24-Inch offers a wider canvas for organizing windows. This extra space helps you manage multiple applications simultaneously without constant switching. The 21.5-inch HP model is smaller and may feel cramped during heavy multitasking sessions.
Which size is more space-saving for a small desk?
The 21.5-inch HP All-in-One is more compact. Its dimensions are 19.4 inches wide and 15.1 inches high. The 24-inch iMac is larger at 27.2 inches wide and 23.8 inches high. If desk footprint is your primary concern, the smaller HP unit fits tighter spaces better.
Does the 24-inch display offer better color accuracy?
The 24-inch Apple iMac features a 4.5K Retina display with P3 wide color gamut. This ensures vibrant and accurate colors for creative work. The 21.5-inch HP model uses a standard 1080p panel. It is suitable for general tasks but lacks the color fidelity of the larger iMac screen.
Is the iMac M1 faster than the HP Intel N100?
The iMac uses an efficient M1 chip, while the HP relies on an Intel N100 processor. The M1 delivers higher performance for demanding tasks. The N100 is adequate for web browsing and document editing. If you need raw power, the iMac architecture is superior to the entry-level HP setup.
Can I upgrade the RAM in these all-in-ones?
The provided data lists 8GB RAM for both models. All-in-one desktops often have soldered memory that cannot be upgraded by the user. You must choose the configuration you need at purchase. Neither product description mentions user-accessible upgrade slots for memory or storage components.
Which model is lighter to move around?
The Apple iMac 24-Inch weighs 9.83 pounds. The HP 21.5-inch model weighs 15 pounds. The iMac is significantly lighter. This makes it easier to relocate if you need to move it between rooms or store it away. The HP unit is heavier due to its chassis and components.
Is the 4.5K resolution worth the extra space on a 24-inch screen?
The 4.5K resolution on the 24-inch iMac provides sharp text and images. It fits well on the larger panel, offering clarity that 1080p cannot match. The 21.5-inch HP uses 1080p, which is standard but less detailed. For media consumption or creative work, the higher resolution on the bigger screen is beneficial.