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Old 06-19-2016, 08:44 PM   #1
Julius Caesar
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Kindle Paperwhite DX Size
Is it technically possible for Amazon to make Kindle Paperwhite DX size, while still maintaining the battery life of the original Paperwhite and the weight of the original Kindle DX?
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Old 06-20-2016, 12:13 AM   #2
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Is it technically possible for Amazon to make Kindle Paperwhite DX size, while still maintaining the battery life of the original Paperwhite and the weight of the original Kindle DX?
Yes. The eink display only consumes energy while it is being changed. The big power hog is 3G (or wifi), and next is the CPU, and then SDRAM. For reading books, screen size matters very little regarding battery life, and a big screen leaves room for a bigger battery to boot (with advances in battery tech since the DX giving a much better power/weight ration than before). Battery life depends primarily on usage patterns, not screen size.
Last edited by geekmaster; 06-20-2016 at 12:16 AM.
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Old 06-20-2016, 12:55 AM   #3
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Yes. The eink display only consumes energy while it is being changed. The big power hog is 3G (or wifi), and next is the CPU, and then SDRAM. For reading books, screen size matters very little regarding battery life, and a big screen leaves room for a bigger battery to boot (with advances in battery tech since the DX giving a much better power/weight ration than before). Battery life depends primarily on usage patterns, not screen size.
How about the light? The LED consumes a lot of energy which may significantly shorten the battery life compares to an identical device without the LED.
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Old 06-20-2016, 01:21 AM   #4
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I don't think there are any frontlit 9.7" devices, are there? Light diffusers don't work well on large screens.
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Old 06-20-2016, 09:05 AM   #5
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I don't think there are any frontlit 9.7" devices, are there? Light diffusers don't work well on large screens.
The Onyx N96ML is a front-lit, 9.7 inch ebook reader.

http://www.onyx-international.com/in...ucts/n96-n96ml
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Old 06-20-2016, 09:09 AM   #6
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The Onyx N96ML is a front-lit, 9.7 inch ebook reader.

http://www.onyx-international.com/in...ucts/n96-n96ml
Thank you - I wasn't aware of that. I wonder how well the light works on so large a screen? I'm sure that there must be a good reason that the majority of makers of 9.7" device have opted not to add a frontlight.
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Old 06-20-2016, 03:11 PM   #7
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Thank you - I wasn't aware of that. I wonder how well the light works on so large a screen? I'm sure that there must be a good reason that the majority of makers of 9.7" device have opted not to add a frontlight.

Many of the users who've posted on it here (in the Onyx forum) seem to like it. I'm extremely attracted to it and would purchase it if I didn't have to wait a life-time for it to arrive in Peru.

But I do really wonder how effective the lighting system is considering the size of the unit.
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