Comparison Chart for iPad, PlayBook, Galaxy Tab and Streak

In connection with the announcement of the expected tablet from BlackBerry, the 7-inch PlayBook has become relevant to compare and discuss the advantages and disadvantages of the new type of computer, there is plenty to choose from. Nevertheless, comparing descriptions and reviews, it is difficult to clearly compare the parameters of devices, so the following is a Russian-speaking user-friendly summary table of characteristics (for collecting the characteristics, you should thank Western colleagues )

	Blackberry playbook	Apple iPad	Samsung Galaxy Tab	Dell streak
Screen size	7 inches	9.7 inch	7 inches	5 inches
Resolution	1024 x 600	1024 x 768	1024 x 600	800 x 480
Pixel density	170	133	170	187
Platform	BB Tablet OS	iOS 3.2.2	Android 2.2	Android 1.6
Flash support	10.1	-	10.1	-
CPU	1GHz dual-core Cortex A9	1GHz Apple A4 (ARMv7)	1GHz Cortex A8	1GHz Snapdragon
Graphics	?	PowerVR SGX 535	PowerVR SGX 540	Adreno 200
RAM	1GB	256MB	512MB	512MB
ROM	16GB / 32GB (?)	16GB / 32GB / 64GB	16GB / 32GB	512MB
Extensibility	?	-	microSD	microSD
Ports	802.11 a / b / g / n, Bluetooth 2.1 + EDR	802.11 a / b / g / n, Bluetooth 2.1 + EDR	802.11 b / g / n, Bluetooth 3.0	802.11 b / g, Bluetooth 2.1 + EDR
Data network	3G and 4G (promised)	3G optional (AT&T)	3G (all operators)	3G (AT&T)
GPS	-	only option with 3G	Yes	Yes
Camera	3MP front, 5MP rear	-	1.3MP front, 3MP back	VGA front, 5MP rear
Weight	400 gr	680 gr	380 gr	220 gr
Amount of adequate software (1-5)	?	5	3	2

[UPD] At the request of the habrayuzer, tijay added a line with a subjective assessment of the amount of adequate software for each device.