Tablets compared: Nook vs iPad2 vs Kindle Fire vs Galaxy Tab [specs sheet ]

TabletsNook TabletiPad 2Kindle FireSamsung Galaxy Tab 8.9
Dimensions8.1″ (H) x 5″ (W) x .48″ (D)7″ multi-touch display9.5″ (H) x 7.31″ (W) x .34″ (D)9.7″ multi-touch display7.5″ (H) x 4.7″ (W) x .45″ (D)7″ multi-touch display9.09″ (H) x 6.21″ (W) x .33″ (D)8.9″ multi-touch display(Also comes in 10.1″ and 7″ display models, with varyingdimensions)
Data Storage16GB (expandable to 32GB via MicroSD)16GB, 32GB & 64GB models. Non-expandable8GB (approx 6GB user content). Non-expandable.16 GB
Battery Life11.5 hours (reading)9 hours (video)10 hours on Wi-Fi8 hours (reading), 7.5 hours (video)13 hours (variable)
Processor1GHz dual-core1GHz dual-core Apple A51GHz dual-core1GHz dual-core
File FormatsePub, PDF, DOC, MP4, MP3, JPG, and more.PDF, DOC, JPG, MP4, MP3, MOV, and more.Kindle (AZW), PDF, unprotected MOBI, DOC, JPG, MP4,MP3, and more.PDF, DOC, MP3, MP4, and more
Operating SystemAndroid 2.3 (Gingerbread)iOS 5Amazon-flavored Android UIAndroid 3.1 (Honeycomb)
Price$249$499, $599, $699 (depending on storage size)$199$449