It's about 50% heavier than rM2; the battery is almost triple the capacity of rM2; I assume these are related and both due to the use of LCD over eInk?
Source: I was the chief hw engineer for this device.
The colors do not invert when the backlight is on, which is great because you can turn on only a slight amount of backlight if you need it, and have it blend to the ambient lighting.
Does it invert the colors when backlit?
It's about 50% heavier than rM2; the battery is almost triple the capacity of rM2; I assume these are related and both due to the use of LCD over eInk?
How many shades of gray?