Quote:
Originally Posted by frostschutz
12-15 books would still be huge. I'll believe it when I see it. So far every reader I've had in my hands didn't last for a week without recharging. I'm lucky if I can get through one book, I'm pushing it for two, and three is entirely impossible. Of course since I read with a comfortable font size (6-8 words per line) I have at least twice as many page flips as someone who likes to have the same squinty-eye feeling that paper books offer... but still.
You have to consider that reading 15 books on this thing requires you to transfer books three times, and I assume bluetooth will suck as much energy as wifi. The 12-15 books figure is either based on small books, small fonts (fewest pageflips possible), or is just a theoretical value based on pure pageflip count, not taking standby times into account. Same way any other company is overly optimistic regarding their battery times.
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Bluetooth is much lower power consumption than Wi-Fi. It only has a range of 30 feet under the best of conditions and more likely 7-10 feet but this is good enough for the task. I suspect the pages are compressed for the transfer and decompressed by the book reader. Depending on the compression technique there is very little overhead in decompressing while compression can have quite a bit of overhead using the smartphone processor. Since this device is read only on decompression is needed on the device and power transfer is greatly aided by compression of the content as is transfer time.
Dale