Battery Life: Unimpressive

The iPhone doesn't have a very long lasting battery. Before my iPhone I was a Blackberry user; my battery lasted for days. With the iPhone, especially while I'm traveling, I have to keep charging it throughout the day or risk a completely dead phone by 6PM. The Nexus One is worse.

To test battery life I ran the same suite of battery life tests I have been using in our smartphone reviews for the past couple of years:

The wireless web browsing test uses the 3G or WiFi connection to browse a series of 20 web pages varying in size, spending 20 seconds on each page (I timed how long it takes me to read a page on Digg and came up with 36 seconds; I standardized on 20 seconds for the test to make things a little more stressful). The test continues to loop until the phone dies. This test is designed to simulate a relatively heavy, but realistic data load on the phone. We're stressing the modem/WiFi radio, SoC, memory and display subsystems here. This should also be the sort of battery life you get when you are using any apps that use data (but not 3D acceleration). The display brightness was set to roughly 30% on the Nexus One and 50% on the iPhone.

The H.264 movie playback test loops a 480 x 208 632Kbps re-encode of Slumdog Millionaire until the phone dies. The majority of the device is idle during this test stressing the memory subsystem, video decoder, audio decoder and display more than anything else. The display brightness was set to roughly 30% on the Nexus One and 50% on the iPhone.

The talk time test measures battery life over the course of a conversation between the phone being tested and another phone. The conversation is actually an MP3 playlist on repeat played into the microphone of the phone being tested. The display was disabled.

Battery Life
 
Apple iPhone 3G
Apple iPhone 3GS
Google Nexus One
Wireless Web Browsing (3G) 4.50 hours 4.82 hours 3.77 hours
Wireless Web Browsing (WiFi) 6.67 hours 8.83 hours 5.62 hours
H.264 Movie Playback 4.70 hours 9.65 hours 6.67 hours
3G Talk Time 4.82 hours 4.82 hours 4.67 hours

 

Despite having a larger 1400 mAh battery, the Nexus one proved to have worse battery life across the board than the iPhone 3GS both in my tests and in my day to day usage. The only redeeming quality here is that you can easily swap out spare batteries, while the iPhone requires a 3rd party external battery if you need more juice on the go.

Talk time is lower than on the iPhone 3GS. Using the 3G data or WiFi connections both result in the phone dying faster than the 3GS. Even H.264 video playback discharges the Nexus One's battery faster.

I'm not sure if it's the AMOLED display, the Snapdragon SoC or just inefficiencies in Android but the battery life story isn't a good one.

Android does have a power consumption page that shows what percentage of battery drain can be attributed to various components in the phone (e.g. display, OS, specific apps, idle time). It’s not granular enough for my needs but it’s a great way of showing users, at a high level, what’s killing the battery.

Barcodes & Goggles - Making Science Fiction Reality Final Words
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  • Johnmcl7 - Sunday, April 4, 2010 - link

    Very much agreed, I thought far too much time was wasted on Iphone references which given the Iphone generally does everything worse I really couldn't care less about it. Most noticeably multitasking was only given a brief mention despite being being detailed extensively for the Palm Pre reviews.

    I didn't understand the complaint about the notifications either, to me as a non-Android user the system makes perfect sense - it seems entirely logical to have icons for each notification which when tapped show a list with text on each one.

    John
  • jamawass - Saturday, April 3, 2010 - link

    Great review Anand. do you think the speech recognition worked well enough to be a complete subsitute for typed entry? I've been averse to touchscreen only devices (gave iphone to my wife) because I hate typing on them. Also did you try gesture search which has a highly publicized feature not too long ago?

    I'm currently using a treo pro windows mobile and even with all it's lack of polish it does feel like I am carrying a portable computer with me. I was hoping Windows7 series would enhance this but it appears as if MS is going to take the Apple approach in this regard. Looks like Android has picked up the windows mobile torch and literally flown to the stars with it.
  • Sidharthmodi - Saturday, April 3, 2010 - link

    I liked the Depth in this Product Review. Thanks Anand.
  • has407 - Saturday, April 3, 2010 - link

    Appreciate the depth and that it's based on extended use. Using the 3GS for comparison is spot-on (everything is relative). Thanks again.
  • Chloiber - Saturday, April 3, 2010 - link

    Can we expect a review on the HTC Desire or Evo 4G?

    I know the specs are really quite the same (especially on the Desire) but HTC Sense UI gives the whole thing really a different touch and, according to first reviews, a much better usability.
  • Anand Lal Shimpi - Saturday, April 3, 2010 - link

    We've been trying to get in touch with HTC to get review samples of both of those products. So far we haven't received any response but we won't stop trying :) Worst case, we'll just buy an EVO 4G when it comes out.

    Feel free to write HTC to provide some encouragement if you'd like :)

    Take care,
    Anand
  • Chloiber - Sunday, April 4, 2010 - link

    Well, I'm waiting for my desire too :P

    Evo 4G will probably take even longer....to test Sense UI one can use the HTC Legend, Desire or Evo 4G - shouldn't make any real difference.

    Anyway, I'm looking forward to it :)
  • relativityboy - Saturday, April 3, 2010 - link

    If you already have an Android powered phone you can find the Sense UI online, and run it with the appropriate Rom and tools. I just saw it running on a G1 today. It was pretty fast. :)
  • relativityboy - Saturday, April 3, 2010 - link

    A very lengthy and thorough review of the bits, but I didn't come away with a solid understanding of how the device fits together as a user experience...the review feels, disjointed.

    The keyboard is narrow, how does that fit with the voice transcription?

    Sometimes scrolling in the 'app drawer' is slow, but what else was going on in the background? Were you pulling data, listening to music, what else was going on in the phone? The device/os is a true multi-threaded environment for applications. I didn't notice any emphasis there (a major win over iPhone).

    Did you try doing any benchmarking? Use 'Task Killer' or 'Setcpu'?

    Android is OPEN, unlike apple's mobile products.
    You can install apps that aren't in the app store.
    Memory is super-upgradeable (when was the last time a 4Gb or 8Gb iPhone could be upgraded to 32Gb for the price of a micro-sd chip?)

    The comment "It's Mac vs PC all over again" I think is totally missing representing what's going on here. Yet you hit the nail on the head later when you said Apple sees it as a device that's peripheral to laptops/pcs while Google is aiming for what it could be. Apple had a great idea, the iPhone. Google had a great idea a mobile environment/platform to allow lots of people to have great ideas. Google wants to let the world do the creating. The Nexus One as a device is a punctuation mark in a much larger story that includes the G1, Devour, HTC Evo, Droid, and others. Software development kits are available for-free for just about every platform you can shake a stick ate. Google is harnessing the creative powers of everyone who wants to get in on the game... The iPhone is just, well, Apple's 'one thing'.

    A very respected developer friend of mine once said, "In a contest between your software/idea and the real world, the real world always wins." Google knows this. Apple doesn't.

    I'm definitely an Android person, both by UI preference and ideology, but I don't feel like you've really tried, or given yourself enough time to 'get' what this platform is about.
  • jasperjones - Saturday, April 3, 2010 - link

    Agree that Android's openness is of huge importance. On an iPhone, you can't even install an app that features a woman in bikini, Apple won't allow it. In this context, I always have to think of Tim Bray's statement that

    "The iPhone vision of the mobile internet’s future omits controversy, sex, and freedom, but includes strict limits on who can know what and who can say what. It’s a sterile Disneyfied walled garden surrounded by sharp-toothed lawyers."

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