Best All in One PC Guide for Everyday and Business Desks
Hardware comparisons, display specifications, and upgrade limits across Apple, Lenovo, HP, and Dell all-in-one desktop computers.
Buy an Apple iMac if you want a Mac. For Windows, pick by screen size and whether you need dedicated graphics: the Lenovo Yoga AIO 27 (optional RTX 4050), the HP OmniStudio X for a 31.5-inch 4K creator screen, or the Dell 24 All-in-One for plain office work.
At Layer3 Labs, we build custom agents and enterprise integrations for small and mid-sized business teams, where desk PC choice depends on whether AI tools run in the browser or locally.
An all-in-one PC puts the computer and the screen in one unit, so there is no separate monitor to buy, but parts are harder to upgrade.
Picks and Profiles for the Best All in One PC
Roundups rank the Apple iMac and Lenovo Yoga AIO 27 as top picks. Rankings differ by source: PCMag favors the Lenovo Yoga AIO 27 for most Windows users, while TechRadar and Tom's Guide favor the iMac.
The Apple iMac uses the Apple M4 chip. The entry two-port model includes an 8-core CPU and 8-core graphics processing unit (GPU), while four-port models carry a 10-core CPU and 10-core GPU. Its display is a 24-inch class display (23.5 inches diagonal) with a 4.5K Retina resolution of 4480-by-2520 at 218 pixels per inch. Buyers can add nano-texture glass on four-port configurations.
System memory on the Apple iMac starts at 16GB of unified random-access memory (RAM) on the two-port and lower four-port units, and 24GB on the top tier. Configurations scale up to 24GB on two-port systems or 32GB on four-port systems. Storage starts at a 256GB solid-state drive (SSD) on base models and 512GB on higher models, with maximum limits of 1TB or 2TB. The front camera uses a 12MP Center Stage sensor with Desk View support and 1080p high definition (HD) recording.
Roundups from TechRadar, Yahoo, and Cloudspress in 2026 rank the M4 Apple iMac first for most buyers. No confirmed M5 iMac has appeared in published roundups, though a January 2026 TechRadar update noted Apple could release an M5 model during the year.
For Windows environments, the Lenovo Yoga AIO 27 features a 27-inch quad high definition (QHD) display, system memory up to 32GB of RAM, and optional NVIDIA GeForce RTX 4050 graphics. Published reviews highlight two trade-offs: the dedicated GPU configuration sells only in select regional markets, and the internal RAM is soldered in place.
The HP OmniStudio X provides a larger 31.5-inch 4K display and an RTX 4050 Laptop GPU for creative projects. A Yahoo roundup lists an entry 27-inch model at $1,799 with an Intel Core Ultra 5 processor, 16GB RAM, and a 512GB SSD, though buyers should verify current prices on the Yahoo roundup because retail figures fluctuate.
The Dell 24 All-in-One serves as a budget Windows solution. Listed configurations feature an Intel Core 5-120U processor, 16GB RAM, a 512GB SSD, and a 23.8-inch 1080p touchscreen built for web browsing, office software, streaming, and student assignments. For buyers wanting larger screens, the Lenovo Yoga AIO 9i provides an alternative 4K display paired with higher-tier Intel processors.
| Model | Display Specifications | Processor and Graphics | Memory and Storage Ceiling | Target Workload |
|---|---|---|---|---|
| Apple iMac (M4) | 24-inch class (23.5 inches diagonal) 4.5K Retina (4480x2520) | Apple M4 (8-core or 10-core CPU and GPU) | Up to 32GB RAM, up to 2TB SSD | Mac buyers |
| Lenovo Yoga AIO 27 | 27-inch QHD | Optional NVIDIA RTX 4050 | Up to 32GB soldered RAM | Optional RTX 4050 |
| HP OmniStudio X (31.5-inch reviewed unit / 27-inch entry model) | 31.5-inch 4K (27-inch on entry model) | RTX 4050 Laptop GPU on reviewed unit (Core Ultra 5 on entry model) | Entry model: 16GB RAM, 512GB SSD ($1,799 reported; verify current price) | Creator work |
| Dell 24 All-in-One | 23.8-inch 1080p touchscreen | Intel Core 5-120U | 16GB RAM, 512GB SSD | Browsing, school, streaming, office work |
Specifications to Inspect Before Purchasing
Many all-in-one models incorporate soldered RAM and non-upgradeable storage drives. Because RAM is soldered on the Lenovo Yoga AIO 27, and you choose memory and storage at purchase on the Apple iMac, buy the memory and SSD you need upfront.
Check for USB Type-A, USB Type-C, Thunderbolt, Gigabit Ethernet, and SD card readers before finalizing an order. The base two-port Apple iMac includes two Thunderbolt/USB 4 ports, a 3.5 mm headphone jack, and optional Ethernet, whereas the four-port model adds two additional Thunderbolt 4 connections and standard Gigabit Ethernet.
A 1080p HD webcam is better than a 720p webcam for calls. Check whether the computer includes a physical privacy shutter to cover the lens when meetings end.
Choosing the Best All in One PC for Gaming and Creator Work
Dedicated graphics exist on only a few all-in-one models, and if gaming is the main job a desktop tower is the better route.
Select configurations provide dedicated graphics. The Lenovo Yoga AIO 27 offers up to an NVIDIA GeForce RTX 4050 GPU, while the reviewed HP OmniStudio X unit had an RTX 4050 Laptop GPU. However, regional availability limits the RTX 4050 version of the Lenovo Yoga AIO 27 to specific markets.
Who Should Skip an All-in-One PC
An all-in-one is the wrong shape of machine if you want to swap RAM or storage later. Because many all-in-ones have soldered RAM, you must buy the memory and SSD you need upfront. If gaming is the main job, a desktop tower is the better route. Dedicated graphics exist on only a few all-in-one models. You can find an optional RTX 4050 on the Lenovo Yoga AIO 27 in some markets, while the reviewed HP OmniStudio X had an RTX 4050 Laptop GPU.
You also need a different machine if you want to run local artificial intelligence (AI) models. For those systems, see our guides to the best computers for AI and the best AI mini PCs.
Workstation Needs and the Best All in One PC for Office Desks
If a desk will run AI tools in the browser, any of these all-in-one systems is fine.
Local AI models need a different machine. For workflows that demand local model execution rather than browser tools, evaluate dedicated small-form systems through our guide on Best AI Mini PCs or inspect broader hardware recommendations at Best Computers for AI.
Conditions That Flip Our Hardware Guidance
Our hardware recommendations would change if rankings shift between PCMag and TechRadar, or if an unconfirmed M5 iMac ships.
TechRadar noted Apple could release an M5 model during the year, which would be the model to recheck if it ships. If the RTX 4050 version of the Lenovo Yoga AIO 27 is not sold where you live, the HP OmniStudio X (reviewed with an RTX 4050 Laptop GPU) is the other Windows model here with dedicated graphics.
Frequently Asked Questions
- Only a few are. If gaming is the main job, a desktop tower is the better route. A few all-in-ones have dedicated graphics: the Lenovo Yoga AIO 27 offers up to an NVIDIA GeForce RTX 4050, and the reviewed HP OmniStudio X unit had an RTX 4050 Laptop GPU.
- Models featuring dedicated graphics include the Lenovo Yoga AIO 27 and the HP OmniStudio X (31.5-inch), with up to an NVIDIA GeForce RTX 4050 on the Lenovo and an RTX 4050 Laptop GPU on the reviewed HP unit. Note that the dedicated GPU configuration of the Lenovo Yoga AIO 27 is only sold in select regional markets.
- The Dell 24 All-in-One serves as a budget pick, offering an Intel Core 5-120U processor, 16GB of RAM, a 512GB solid-state drive, and a 23.8-inch 1080p touchscreen. It is aimed at browsing, school, streaming, and office work.
- Brand rankings differ by operating system and reviewer. Reviewers at PCMag favor Lenovo for general Windows desks, whereas TechRadar and Tom's Guide rank the Apple iMac first overall.
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