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Windows Phone 7 devices battery life comparison

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Windows Phone 7 devices battery life comparison
AnandTech has compiled a useful overview of battery life in the various Windows Phone 7 devices that have hit the market so far. Besides talk times, the test has been browsing over 3G and Wi-Fi, which wouldn't make the Super AMOLED screen of the Samsung Omnia 7 justice, since it sucks up to three time more juice when displaying white than regular LCD displays. And, as we know, most websites have white backgrounds, so it is good that AnandTech has left it out of its test.

The LG Optimus 7 has fared best out of all WP7 handsets, thanks to the larger battery. The current and previous generation of Apple's iPhone have done best in web browsing, but the Motorola Droids are performing incredibly well in talk times. The Windows Phone 7 participants - LG Optimus 7, HTC Surround, and Samsung Focus, are somewhere in the mid-range and below, throughout all the tests. Of note is the solid performance of the Dell Streak, despite its 5" display.

source: AnandTech

Windows Phone 7 devices battery life comparison
Windows Phone 7 devices battery life comparison
Windows Phone 7 devices battery life comparison

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posted on 29 Oct 2010, 11:17 1

1. scheming (Posts: 3; Member since: 08 Dec 2009)

All of the phones listed above the Apple iPhone 4 on the "3G Talk Time Battery Life" don't actually do 3G calling. Those phones revert to 1X technology for phone calls, conserving battery life and disabling 3G data services while in a phone call.

posted on 29 Oct 2010, 12:04

2. mike (unregistered)

the iPhone 4 is the battery king for sure!

posted on 29 Oct 2010, 12:38 1

3. rafaelinux (Posts: 31; Member since: 29 Jun 2009)

Funny how they didn't put even one real phone on the list.

posted on 29 Oct 2010, 13:29

4. erikiksaz1 (unregistered)

It would have been nice to see some more statistics based on the amount of screen real estate, at least for the web surfing data. The data itself isn't really fair to show without some indication of this.

I was bored, so I just crunched up some numbers using the aspect ratio and the diagonal screen widths. Comparing the EVO to the Iphone, the EVO has about 34% more screen real estate to light up. This actually shows pretty nicely with the wifi testing, the Iphone does ~30% better because it has 30% less screen to light up. But looking at its use of 3g, the Iphone still performs better, even after having accounted for the smaller screen battery benefit.

The true winner by farrrrr? The streak. The battery life on that thing's a freak.

posted on 29 Oct 2010, 14:51 1

5. angel923 (Posts: 7; Member since: 24 Oct 2010)

wow dell streak has pretty good battery life for a phone with a screen that huge

posted on 29 Oct 2010, 23:37 1

6. fireedo (unregistered)

Motorola Droid X really a great All around performer here..... :)

posted on 30 Oct 2010, 14:12

7. Kawatwo (unregistered)

I plan on getting the Focus and using BLACK as much as possible : ) As long as I can get through the day I would be happy. You would think a new OS would at least match the Iphone for battery life though.Can always buy spare batteries for trips.

posted on 09 Jan 2011, 22:38

8. Someone1234 (unregistered)

They should also list the performance of the browser too. If the browser runs twice as fast, then you're probably going to view considerably more websites even if the battery life lasts twice as long.

http://www.gadgetsdna.com/nexus-one-android-2-2-vs-iphone-4-ios-4-browser-speed-comparison-test-vide o/4507/

The (now) one year old Nexus One HALVES the rendering time of Javascript benchmark (Sunspider). Imagine newer Android phones with better GPUs and / or more efficient GPUs.

Granted, even if it reaches 1/2 the time in a benchmark, you're not going to get twice the browsing done -- BUT it does decrease the time spent waiting, and IMHO better, as I want things render as fast as it can so I get get what I want to get and move on (especially if I'm with people).

If I need more juice, I'm just going to bring:
1) a tablet with a USB port (ADAM FTW!) or an emergency charger
2) a spare battery

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