Early in 2017, the Ultra HD Alliance released specifications for Mobile HDR Premium, a new standard for HDR on mobile devices including phones, tablets and laptops. Those standards include 10-bit color depth on displays, a minimum of pixels per degree, color space (which may vary from smaller devices like tablets and smartphones to larger screens on laptops), and maximum bit-depth.
|Device||Resolution||Dynamic Range||Color Space||Bit Dept|
|Smartphones (3- to 7-inch screens)||60 pixels/degree||.0005-540 nits||90% of P3 Color gamut||10|
|Tablets (7- to 12.9-inch screens)||60 pixels/degree||.0005-540 nits||90% of P3 Color gamut||10|
|Laptops 9.5- to 18-inch screens)||60 pixels/degree||.0005-540 nits or 0.1-600 nits||90% of P3 Color gamut||10|
Source: Ultra HD Alliance