Quote:
Originally Posted by murraypaul
And they don't require power to keep the screen backlight on when the screen is not in use.
No, they aren't, they are measuring different things.
One is counting time that the device is actually in use (tablet), the other is counted elapsed wallclock time, regardless of whether the device is used or not (eInk). On the same basis, you could say that the tablet will last two to three weeks. (If you only use it for half an hour a day.)
It is deliberately misleading. Indeed I note that in Amazon's description of their eInk readers in the UK, they have removed the misleading chart they include in the US version, perhaps because of the stronger UK advertising regulations.
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Read a book for the same amount of time on a tablet and on an eInk reader - guess which one uses more power for the same activity.
Hint: It's the tablet.