With the RAZR, Motorola proved that a decent capacity battery can be squeezed into an awfully thin phone. The Atrix HD is just a few hairs thicker and that nets it a slightly larger battery. It's not RAZR MAXX territory, nor Galaxy S III for that matter, but it's still got more battery capacity than the One X (AT&T), by a fraction. 

Battery Capacity

We start with talk time, which has been a strong suit for Motorola for quite a long time.

Cellular Talk Time

Normalized Battery Life - Cellular Talk Time

The king of this test remains the RAZR MAXX with its mind boggling 20+ hours, and the other OMAP 4 devices also do extremely well. The ATrix HD falls in line with other S4 devices, but clearly Motorola's special talent at this test owed something to TI's SoC's. But at 10 hours of talk time that's plenty for any talker. 

Web Browsing (WiFi)

Normalized Battery Life - Web Browsing (WiFi)

Web Browsing (Cellular 3G - EVDO or WCDMA)

Normalized Battery Life - Web Browsing (Cellular 3G)

Web Browsing (Cellular 4G WiMAX or LTE)

Normalized Battery Life - Web Browsing (Cellular 4G)

Our web browsing test cycles through several sites and have been treated to a variety of surprises over the last few years. Here, the Atrix HD falls behind when tested on WiFi, well behind the One X (AT&T) that shares its internals, even when normalized. Under 3G that situation continues, with a huge deficit between the Atrix HD and the One X (AT&T). It's under LTE that we get a little surprise. At exactly 6 hours, the Atrix HD bests the One X (AT&T) by a half hour, but more startling is that we have a phone that seems to exhibit battery life under WiFi that's within an hour of LTE performance. I'd have preferred to see WiFi battery life go up alongside LTE, but more LTE battery life is always better.

WiFi Hotspot Battery Life (3G)

WiFi Hotspot Battery Life (4G)

And here, another surprise. I mentioned in the HTC Droid Incredible 4G LTE review that my new place has some signal issues. I've resolved the VZW issues through the use of a Network Extender, and AT&T performance has actually been pretty good, so I don't know if this is a fluke. The Atrix HD isn't the only device whose LTE Hotspot performance actually bests its 3G Hotspot performance, it shares that distinction with the RAZR MAXX. And at just over 5 hours under LTE, this is right near the top and right alongside the One X (AT&T). All around, battery life is good, and very nearly great under LTE. 

Cellular Performance, Calls and GPS Conclusion
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  • locowolf - Thursday, September 6, 2012 - link

    Any chance that you can start testing battery life on GPS in some of these reviews? I am astonished at how fast GPS runs down the battery of my HTC One-X and would love to see how other smartphones fare.
  • Belard - Saturday, September 15, 2012 - link

    Well... I finally got my Atrix HD today. So far, I'm liking the phone a lot... much more than my Galaxy S1... and personally, I still like it over the SGS3. Still getting used to Android 4.0

    Anyways, soon after activation - there is a 66mb upgrade for the Atrix HD phone which is supposed to:
    - Improve battery life (always a good thing)
    - Improve Wifi
    - some security fixes.
    - Improved Camera functions and image quality.

    Since I just got the Phone and did the update on its first charge, I don't have much to compare it with.

    Improving Camera and battery life would be a big boost to the phone.

    I really really like the Circles, how the info is provided.
  • Belard - Saturday, September 22, 2012 - link

    One week of use...

    Battery life seems to be getting better every day. Also, I've shut down some useless apps, mostly at&t ones for thinks I just don't need.

    Best Buy is now selling this phone (by itself) for $30... a steal.

    The phone fells great. The review is pretty accurate on its shortcomings (SIM cover). I also played with a friends new Samsung Galaxy S3, fixing some settings... and was glad to have bought the Atrix HD over the Samsung (even thou it is a somewhat better phone on the hardware end)

    4.1 will only make the Atrix a much better phone.
  • kbird1976 - Monday, October 1, 2012 - link

    How do I know if my phone is charging.. I thought there was a blue flashing light,but its gone
  • kbird1976 - Monday, October 1, 2012 - link

    can you remove/change the keyboard that suggest words ? I hate that, I just want the old fashion touch 1 letter at a time ! Sorry, but I am an older user and swype isn't for me, nor the suggestion of words.

    Thanks !
  • KjunMan2012 - Monday, October 22, 2012 - link

    Stay away from the Motorola Atrix HD as it will not last the length of your contract. Purchased one at AT&T on 8/24/2012 with a 2 year contract. The phone battery lasted until 10/20/2012. After many questions by warranty such as "Do you leave the phone on at night?" I was able to obtain a new one under warranty spending $14.95 for expedited shipping.
    I doubt this phone will last until the end of the contract as the battery which cannot be changed will die again and at that point I have nothing, nada, for a phone. Maybe it will get dropped overboard while fishing as it is insured. Probably will end up buying another phone on eBay to get to end of contract. Wanted to pay for a new Samsung and trade in this NEW Motorola but they would not deal or wanted $450.00 for me to change phones. I am stuck with this one but no more Motorola phones for me. My son has the Samsung Galaxy III and has no issues with it. Should have spent the additional $100.00 and got a quality phone. John Arbuckle said "You get what you paid for". Boy, was he right!
    Camera is poor on the Motorola. Photos come out rather yellow looking. Difficult to save photos and some I have not been able to delete.
    My suggestion. spend a little more money and get a much better phone than the Motorola. I hope it lasts till contract ends but i am not confident.
  • Jay72 - Tuesday, April 16, 2013 - link

    If I run Lin pack multi threaded 10 times on my atrix HD, I get from 250 to 300 MFLOPS on 9 of the runs.

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