Hardware certification requirements for Windows tablets

Hardware certification requirements for Windows tablets
Graphics Card	DirectX 10 graphics device with WDDM 1.2 or higher driver
Storage	10 GB free space, after the out-of-box experience completes
Standard buttons	'Power', 'Rotation lock', 'Windows Key', 'Volume-up', 'Volume-down'
Screen	Touch screen supporting a minimum of 5-point digitizers and resolution of at least 1366x768. The physical dimensions of the display panel must match the aspect ratio of the native resolution. The native resolution of the panel can be greater than 1366 (horizontally) and 768 (vertically). Minimum native color depth is 32-bits.
Camera	Minimum 720p
Ambient light sensor	1–30k lux capable with dynamic range of 5–60k
Accelerometer	3 axes with data rates at or above 50 Hz
USB 2.0	At least one controller and exposed port.
Connect	Wi-Fi and Bluetooth 4.0 + LE (low energy)
Other	Speaker, microphone, magnetometer and gyroscope. If a mobile broadband device is integrated into a tablet or convertible system, then an assisted GPS radio is required. Devices supporting near field communication need to have visual marks to help users locate and use the proximity technology. The new button combination for Ctrl + Alt + Del is Windows Key + Power.