Re: Like the specs on this, but a little pricey
>To use a tablet as an ereader at night it is, in my opinion, essential to be able to tune the colour balance (shift out some of that bright stimulating blueness) - I don't think that's possible without root.
I suspect it is possible. The Z3 Compact has a White Balance panel, allowing RGB levels to be adjusted individually, and some greyscale bars to help calibrate it, along with a 'hold to compare with previous setting' feature. I'm looking at it right now.