Battery Life

Nailing performance is one thing, but in order to really sell Medfield and other upcoming SoCs to OEMs, Intel has to deliver battery life and power consumption that's competitive. It's about performance/power in the SoC space. First, it's worthwhile to note that the X900 includes a relatively small battery, at just 5.4 Whr. Of late, batteries over 6 Whr seems like the norm, and I'm told that future designs including the Motorola phone will probably include larger ones. It's just good to have that frame of reference and this chart should help:

Battery Capacity

Intel notes battery life in their own X900 announcement blast as being around 5 hours of continuous 3G browsing and 8 hours of talk time. Our own numbers end up being pretty darn close, at 4.6 hours and 8.5 hours for those two metrics, respectively. 

As a reminder, the browsing tests happen at 200 nits and consist of a few dozen pages loaded endlessly over WCDMA or WiFi (depending on the test) until the phone powers off. The WiFi hotspot tethering test consists of a single attached client streaming 128 kbps MP3 audio and loading four tabs of the page loading test through the handset over WCDMA with the display off. 

Web Browsing (Cellular 3G - EVDO or WCDMA)

As a smartphone the X900 does a bit below average here, but as we mentioned it also has an unusually small battery for a modern flagship Android smartphone. If we divide battery life by battery capacity, we can get a better idea for how the Medfield platform compares to the competition:

Normalized Battery Life - Web Browsing (Cellular 3G)

Normalizing for battery capacity, the X900 actually does a bit above average. In other words, the Medfield platform appears to be just as power efficient as some of the newer OMAP 4 based smartphones.

On WiFi the situation is no different:

Web Browsing (WiFi)

Again we see reasonable numbers for the X900 but nothing stellar. The good news is that the whole x86 can't be power efficient argument appears to be completely debunked with the release of a single device. To move up in the charts however, Intel needs to outfit its reference design with a bigger battery - something I've heard is coming with the Z2580's FFRD. The normalized results put the X900 at the middle of the pack:

Normalized Battery Life - Web Browsing (WiFi)

We see similar results in our talk time and 3G hotspot tests:

Cellular Talk Time

Normalized Battery Life - Cellular Talk Time

WiFi Hotspot Battery Life (3G)

Normalized Battery Life - WiFi Hotspot (3G)

GPU Performance Camera - Stills and Video
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  • Emran - Monday, June 25, 2012 - link

    Internet speed, camera clarity, battery time, and other specification Reply
  • grindBoy - Thursday, July 12, 2012 - link

    What about the app compatilbilty with general apps like whatsapp (quite popular in india) and TempleRun? Share some experience withe the common apps. Reply
  • DesDizzy - Wednesday, September 05, 2012 - link

    Sounds like a winning formula to me, average performance at 4x the cost of the competition. Reply
  • amodrode - Wednesday, October 10, 2012 - link

    @AnandTech, as Xolo X900 has got an upgrade of ICS now, please redo the benchmarking tests. It would be wonderful if you can list the upgrades from Gingerbread to ICS and a comparative analysis between both OS versions. Reply
  • dhananjayroy - Saturday, February 23, 2013 - link

    I brought this phone after i read the in dept review of this phone.
    I got the phone with pre updated ICS.
    This phone is really good no doubt about that but the camera is below average and the battery drains really fast
    Playing games listening to music watching videos, web surfing is a delight. A well made phone for sure ....
    Reply
  • manoj7878 - Wednesday, May 08, 2013 - link

    I sold my smartphone at www.smartphonecashin.com - was a bit reluctant at first because they offer more money than anyone else, but the process was easy and hassle free Reply

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