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XiaomiBook S 12.4″
- Processor: Qualcomm Snapdragon 8cx Gen 2
- Screen size: 12.4"
- RAM: 8GB
- Storage: 256GB SSD
PROS
- Light and thin, so it's easy to carry around.
- A sharp, bright 16:10 screen that reviewers rated well for the price.
- Long claimed battery life, with fast charging and microSD expansion.
CONS
- Heavy x86 software, such as Adobe apps, won't run well on the ARM chip.
- The keyboard cover and Smart Pen are sold separately, which raises the real cost. The keyboard cover was €150 and the pen €100 at launch.
XiaomiBook S 12.4″ is one of those Windows tablets that keep getting made, and they keep landing in the same awkward spot. Too heavy to beat an iPad, too weak to replace a laptop, and often priced as if they could do both. The Xiaomi Book S 12.4″ doesn’t escape that completely. It does get closer than most.
The reason is the chip. It’s a detachable 2-in-1 with a Qualcomm Snapdragon 8cx Gen 2, an ARM processor, rather than the Intel or AMD part in most Windows machines. ARM runs cool and sips power, so you get a thin, fanless body. You also get Windows on ARM, which has improved a lot but still has gaps. Browsers, Office, streaming and note apps are fine. Video editing, games and older x86-only software are where I’d expect trouble. If your day is mostly documents, email and too many tabs, this is fine. If it isn’t, don’t bother.
The screen is the reason to consider it. It’s 12.4 inches, 16:10, sharp, and it takes a stylus. Held upright it suits reading and marking up PDFs. In landscape it fits two windows side by side without feeling squeezed. That size is a good middle ground, small enough for a bus seat and big enough that you don’t feel like you’re working on a phone.
The keyboard is the weak spot, as it is on nearly every detachable. Short travel and a tight layout are fine for emails and tiring for anything longer. The kickstand is flexible but wobbles on a lap in a way a clamshell never does. Check how it feels for yourself before buying if you write a lot.
One thing ARM does well is idling. Instant wake and low standby drain are things plenty of regular laptops still get wrong.
So it suits students, commuters and anyone with light office work. Creators and developers with x86 toolchains should look elsewhere. It won’t replace your main laptop, and I don’t think it’s trying to. As a second device, or a first one for simple needs, it’s an easy recommendation.
XiaomiBook S 12.4″ Images
Full Specifications
Identity
| Brand / Model A brand model is a strategic framework that defines how a company builds, positions, and manages its identity to connect with customers and guide business decisions. | Xiaomi Book S 12.4" |
| Price A price is the amount of money or other compensation that a buyer gives to a seller to acquire a product or service | €699 for the tablet alone, €799 with the keyboard cover |
| Warranty A warranty is a legally binding promise from a manufacturer or seller to repair, replace, or refund a product if it breaks or fails to meet specific quality standards within a set time | Not confirmed |
Laptop Performance
| Processor A processor is an electronic chip that acts as the "brain" of a computer, executing software instructions and performing calculations | Qualcomm Snapdragon 8cx Gen 2, octa-core, 2.84GHz |
| RAM RAM stands for Random Access Memory, which is a device's short-term memory used to temporarily store data that the processor needs right now. | 8GB LPDDR4X |
| Internal storage Internal storage is the built-in, permanent memory inside a device like a smartphone, tablet, or computer used to hold the operating system, apps, and your personal files. | 256GB SSD, expandable up to 512GB with microSD |
| Graphics Graphics refer to any visual images, designs, or pictorial representations on a surface or screen used to inform, illustrate, or entertain | Adreno 680 GPU |
| Operating system An operating system (OS) is the main system software that manages a computer's physical hardware and provides a base for other programs to run | Windows 11 in S mode out of the box (ARM version) |
Laptop Display
| Screen size Screen size is the physical diagonal measurement of a display area, usually calculated from one corner to the opposite corner and expressed in inches. | 12.4" |
| Resolution The measure of sharpness and detail in a digital photo, video, or screen, usually counted in pixels or dots per inch (DPI). | 2,560 x 1,600 (244ppi, 16:10) |
| Panel type The panel type of a screen or monitor refers to the specific liquid crystal or diode technology used to display images, which dictates the screen's color accuracy, viewing angles, contrast, and speed. | LCD touchscreen with 100% DCI-P3 coverage and 500 nits peak brightness |
| Refresh rate A refresh rate is the number of times per second a screen updates the image it shows. | 60Hz |
Power and portability
| Battery Capacity Battery capacity is the total amount of electrical energy a battery can store and deliver, functioning much like the size of a fuel tank. | 4,920mAh, with a claimed 13.4 hours of use and 65W fast charging |
| Weight Weight is the downward force that gravity exerts on an object. | 720g (tablet only), 8.95mm thick |
Laptop Connectivity
| Ports A physical socket or plug on a computer or electronic device (such as a USB, HDMI, or Ethernet port) used to connect peripheral cables and devices. | USB-C (charging and 4K external display output), 3.5mm headphone jack, microSD slot |
| Wi-Fi version A Wi-Fi version is a specific generation or technical standard of wireless networking technology that determines your device's speed, range, and connection quality. | Wi-Fi 5, with Bluetooth 5.1 |
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