For Amazon.com's device one weights 221g (7.8) how many screen pixel device have?
Maker Model Intro year Screen size (inch) Self-lit Screen type Weight Screen pixels Touch screen micro SDHC
Comparison of e-book readers
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Electronic-paper displays
Electronic-paper displays
Aluratek Libre Ebook Reader Pro 2009 5 no ePaper 213g (7.5oz) 600 × 800 No up to 32 GB
Amazon.com Kindle Paperwhite 3G 2012 6 Yes eInk Pearl 221g (7.8oz) 758 × 1024 Yes 2-Point No
Amazon.com Kindle Paperwhite Wi-Fi 2012 6 Yes eInk Pearl 213g (7.5oz) 758 × 1024 Yes 2-Point No
Amazon.com Kindle (4th generation) 2011 6 no eInk Pearl 170g (6.0oz) 600 × 800 No No
Barnes & Noble Nook Simple Touch 2011 6 no eInk Pearl 212g (7.5oz) 600 × 800 Yes Yes
Barnes & Noble Nook Simple Touch with Glowlight 2012 6 Yes eInk Pearl 212g (7.5oz) 600 × 800 Yes Yes
Bookeen Cybook Odyssey HD FrontLight 2012 6 Yes eInk Pearl + HSIS 212g (7.5oz) 758 × 1024 Yes Yes
Bookeen Cybook Odyssey 2013 6 no eInk Pearl + HSIS 180g (6.35oz) 600 × 800 Yes Yes
Bookeen Cybook Orizon 2010 6 no SiPix 245g (8.6oz) 600 × 800 Yes Yes
bq Movistar ebook 2011 6 no AUO + SiPix 244g (8.6oz) 600 × 800 Yes up to 16 GB
Various private labels Generic 6" touchscreen varies 6 no eInk 240g (8.5oz) 600 × 800 Yes SDHC
Ectaco JetBook Color 2012 9.7 no Triton Color E Ink 662g (23.4oz) 1200 × 1600 Yes up to 32GB
Elonex 621EB 2009 6 no eInk 180g (6.3oz) 600 × 800 No Yes
Icarus Reader Icarus Excel 2012 9.7 no eInk Pearl 530g (19oz) 825 × 1200 No Yes
Icarus Reader Icarus 8 2013 8 no ePaper 300g (10.5oz) 768 × 1024 No Yes
Icarus Reader Icarus Essence 2013 6 no ePaper 220g (7.8oz) 800 × 600 No Yes
Icarus Reader Icarus Sense G2 2011 6 no eInk 220g (7.8oz) 600 × 800 Yes Yes
Iriver Iriver Story HD 2011 6 no eInk Pearl 207g (7.3oz) 768 × 1024 No SDHC
JinKe Hanlin V5 2009 5 no eInk 160g (5.6oz) 600 × 800 No SDHC 16GB
Kobo Inc. Kobo Aura HD 2013 6.8 Yes eInk Pearl 240g (8.5oz) 1440 × 1080 Yes Yes
Kobo Inc. Kobo Glo 2012 6 Yes eInk Pearl 185g (6.5oz) 758 × 1024 Yes Yes
Kobo Inc. Kobo Mini 2012 5 no eInk Vizplex V110 134g (4.7oz) 600 × 800 Yes No
Kobo Inc. Kobo Touch 2011 6 no eInk Pearl 200g (7.1oz) 600 × 800 Yes Yes
Kolporter eClicto 2007 6 no eInk 174g (6.1oz) 600 × 800 No SD
Onyx Inc. BOOX i62 2011 6 no eInk pearl 238g 600x800 Yes TF
Onyx Inc. BOOX i62ML 2012 6 Yes eInk HD 238g (8.4oz) 758 × 1024 Yes (IR) TF
Onyx Inc. Boox M92/92S 2011 9.7 no eInk Pearl 520g (18oz) 825 × 1200 Stylus SDHC
PocketBook PocketBook 360 Plus 2011 5 no eInk 150g (5.3oz) 600 × 800 No Yes
PocketBook PocketBook Pro 912 2011 9.7 no eInk 565g (20oz) 825 × 1200 Yes Yes
PocketBook PocketBook Touch 2011 6 no eInk Pearl 195g (6.9oz) 600 × 800 Yes Yes
PocketBook PocketBook Basic New 2012 6 no eInk 180g (6.3oz) 600 × 800 No up to 32gb
Sony Reader Wi-Fi PRS-T2 2012 6 no eInk Pearl 167g (5.9oz) 600 × 800 Yes 2-Point Yes
txtr beagle 2013 5 no eInk 128 g (4.5oz) 600 x 800 No No
Wexler Flex One 2012 6 no LG flex 110g (3.9oz) 1024 x 768 No Micro SD
Maker Model Intro year Screen size (inch) Self-lit Screen type Weight Screen pixels Touch screen micro SDHC
SELECT Screen pixels FROM table WHERE Maker = amazon.com AND Weight = 221g (7.8oz)
amazon.com 221g (7.8oz)