Mostly Sony Xperia Z Ultra (great for the bath as it's waterproof) with the Google Play Books app, sometimes iPad Mini Retina with same app, also Sony PRS-350 which I still love.
I'm a bit concerned about the effect on eyesight and sleep patterns with the LCD backlit screens, so try to use the Sony PRS-350 in the later evening. It doesn't do email or web though, so may look at the Onyx T68.
Nick
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