Thread: N900 specs revealed
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fms is offline fms
2009-05-25 , 14:38
Posts: 1,418 | Thanked: 1,541 times | Joined on Feb 2008
#71
Originally Posted by attila77 View Post
Care to elaborate why ? We're talking amount of emitted light per area here. While 0.6" does not sound like much, area grows with a square, so it's really 12.25*const vs 16.81*const, which is...(calculator tapping) ~37% more.
This difference is negligible with respect to the total power consumption by the device. Let us assume that backlighting is done by 4x60mW (4x3Vx20mA) LEDs i.e. they consume 240mW. Let the device consume total of 2.5W (that is how much N810 draws when running at full speed, if I remember ITT posts correctly).

Now, with the smaller screen you will only need 240W*0.63=151mW or 90mW less. The total power draw by the device will go down by (90mW/2500mW)*100%=3.6%.

By comparison, the battery capacity is going down by (180/1500)*100%=12%.

Of course, the above numbers are all estimates, but they are not that far off from the real numbers.
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