Windows 10 on ARM processors is still in its early days, but unlike the stumbling with Windows RT of 2012 Microsoft is doing it right. It's only been a month since the first Windows 10 on ARM devices were announced, and now Lenovo is jumping into the pool with the Miix 630 2-in-1 tablet.

From the outside, it's not immediately obvious that there's anything different going on inside the Miix 630, and that's just how Lenovo wants it. The 12.3-inch display has a nice tall 2:3 aspect ratio with a respectable, though not incredible, 1920x1280 resolution. It has a nondescript black bezel around all sizes, a Windows Hello-compatible camera at the top, and a metal body with square edges on the top and side and a rounded curve on the bottom. Lenovo's kept it simple when it comes to ports, offering just a USB-C port on the right side and a headphone/mic jack on the left.

The Miix 630 bucks the trend of many other 2-in-1 convertibles, which have converged on the flip-out kickstand style established by Microsoft's Surface tablets. Instead, the kickstand is part of the removable keyboard cover. It magnetically latches to the bottom-mounted keyboard cover and sticks to the front to give the keyboard deck a bit of an angle, but it also attaches to the back of the tablet, with the lower half stationary and the upper half hinged and flipping down to form the kickstand. The benefit is a thinner and lighter tablet when you want to use just that part, the drawback is that the package is incrementally thicker with the keyboard attached. At least the back of the keyboard cover has a nice leather-like texture — and a fabric loop for the Lenovo Pen.

Lenovo Miix 630 specs

Spec Lenovo Miix 630
Display 12.3-inch 1920x1080 LCD
Processor Qualcomm Snapdragon 835
Graphics Adreno 540
RAM 4GB or 8GB
Storage 64GB, 128GB, or 256GB
Ports USB-C, audio jack
Wireless Wi-Fi 802.11ac 2x2, Bluetooth 4.2, LTE
Cameras 13 MP rear camera, 5MP front camera
Battery 48Wh, up to 20 hours
Dimensions 11.5 x 8.2 x 0.6 inches
(293 x 210 x 15.6 mm)
Weight 2.93 lbs (1330 g)

Inside the Lenovo Miix 630 you'll find a Qualcomm Snapdragon 835 processor with an Adreno 540 GPU. This octa-core ARM chip is the workhorse behind both the previously unveiled Windows-on-ARM devices (the HP Envy X2 and ASUS NovaGo), as well the Samsung Galaxy Note 8, Google Pixel 2, OnePlus 5T, and the Razer Phone. That's backed up by your choice of 4GB or 8GB of RAM and solid-state storage ranging from 64GB to 256GB. All of this is fed electrons from a battery that Lenovo says will deliver 20 hours of battery life, though we'd expect real-world usage to be around half of that (which is still mighty impressive).

Aside from improved heat management and battery life, going with an ARM processor also means the tablet can pick up always-connected capabilities. Even when sleeping, the Miix 630 can remain connected to Wi-Fi and optionally LTE (with an integrated eSIM) while you're on the go, syncing your content and bringing in notifications without a significant hit to the battery.

Lenovo is aiming to have the Miix 630 available around the start of the second quarter of 2018, with a starting price of $799.99, though the first devices with the Qualcomm Snapdragon 845 processor — designed with Windows in mind — will be hitting shortly after that.