Samsung Galaxy Tab - Battery Life

So the battery life test is an interesting one, in that we don’t have a comparable tablet result yet - Anand used a modified version of the battery test in his iPad review and I haven’t yet had a chance to run the Viewsonic through the battery testing yet. I’m running these tests on my iPad, so I’ll update this page as those results come in.

But overall, the battery life is pretty good. The Galaxy Tab’s 14.8 Wh (4000 mAh) battery managed 9.75 hours on our web browsing test over WiFi. That outdoes the Dell Streak by an hour and a half, the Droid X by an hour, and the EVO 4G by two. Unfortunately, here’s the rub: Anand got almost an exact time out of the iPad, but he ran the same test with music playing in the background and email fetching every 15 minutes. I’m still running the web-only battery life test on the iPad, but I can safely say that it should outlast the Galaxy Tab by a decent margin.

Lightcycles. I kid you not.

To get a feel for battery life during video playback, I timed a looping 2GB H.264 encode of the original Tron DVD. The Galaxy Tab made it through four times over before giving up the ghost, good for 6:42 of video playback. This looks pretty poor in comparison to the 13.6 hours Anand got from the iPad in his 720p h.264 battery life test, but that video file was encoded to a lower bitrate, so it isn’t directly comparable. I’ll be rerunning the iPad using the same Tron file that we used this time around, and it’ll be our standardized HD video file for tablet battery testing going forward.

So without focusing too much on direct numbers, there’s only a couple of takeaways. The Galaxy Tab has pretty good battery life, but there’s not really any directly competing 7” devices to compare it with. The Galaxy Tab is more power efficient than the iPad due to the smaller screen, but the iPad has an absolutely massive 25 Wh battery. That’s the mobile equivalent of stacking the deck, so Samsung shouldn’t feel bad for losing out to the iPad on the battery life front.

Samsung Galaxy Tab - Camera Performance Samsung Galaxy Tab - Conclusion
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  • lordmetroid - Friday, December 24, 2010 - link

    You use your phone for convienence and hyper mobility. The netbook as a more mobile full internet platform, your laptop as a mobile workstation and the stationary PC as the powerful workstation, server or what have you that does not need to be mobile.

    So what does the slate provide?
  • OldPueblo - Friday, December 24, 2010 - link

    What you just described smartphones as works perfectly for tablets, with their small screens smartphones can actually take longer to quickly look up something or do some on the spot research. Netbooks and laptops are interchangeable in most cases, why you'd have both at the same time doesn't make a lot of sense. You either want to be very portable or you want a mobile desktop while "on the go." But neither can do what I used as an example in 60 seconds. And a smartphone can take longer than a tablet as well since you have to manipulate a smaller screen which adds time. A tablet is in a sense the sweet spot of "instant on, portability, and convenience." Unless you have the ipad, then you're carrying another bag. :)
  • plainsman11 - Friday, December 24, 2010 - link

    hi vivek,

    i'm not sure if i have seen many of your articles on anandtech thus far.

    from the review i would say overall, good effort!

    i can see areas of improvement. i know you're going to continue to learn and get better.. and as you have experienced thus far, anandtech readers can be pretty critical given that they're used to a high standard of reviewing initiated by anand himself.

    i think it would be very crucial that you have a chat with anand, seek his feedback and understand how you could have done this review better or from different perspectives/angles.

    i think by anand giving you the opportunity to do this key product review (an ipad competitor) it shows he might be trying to develop stronger role redundancies (not sure if its also because of xmas season haha)

    i think anand needs to develop more reviewers and mentor, influence them eventually to be able to write reviews with the anandtech standard and style.

    then he will not need kill himself by having to personally write every single review to ensure this level of quality.

    cheers and happy holidays!

    alfe
    anandtech reader since 1998
  • VivekGowri - Saturday, December 25, 2010 - link

    Hi Alfe,

    Thanks for your comments, I really appreciate them. This is the 30th post I've made on AT, and I think the 17th or 18th review, so I've been around, mostly in notebooks/netbooks but moving into tablets. I'm hoping to continually improve with each review I write, and Anand is definitely helping me out with these.

    I'm not too worried about the comments on this review, a lot of them are stemming from the fact that the article got pushed live about 10 minutes before it should have been - I hadn't finished editing the table and things like that. This is the first of many tablet reviews to come, so I hope you keep reading and enjoying our articles and I hope that in future my articles can meet your expectations.

    Regards,

    Vivek
  • MadAd - Sunday, December 26, 2010 - link

    People seem to be struggling to find a good fit for the 7" factor, personally I cant wait to replace my 1Ghz Via C3 embedded pc setup in my car with something similar to a tab.

    Whatever brand I buy, 7" is the ideal size for automotive fitments.
  • Piplzchoice - Sunday, December 26, 2010 - link

    At this point iPad seem to fend off the most successful challenger, Samsung Galaxy Tab, when it comes to their respective customer satisfaction levels. Your readers may be interested in our ongoing analysis of Samsung Galaxy Tablet customer' reviews. We also compared their ratings to those of iPad http://blog.amplifiedanalytics.com/2010/11/851/.
    We specialize in automated aggregation and analysis of customer reviews posted online, mining their opinions and quantifying qualitative information found there.
  • zero2espect - Monday, December 27, 2010 - link

    just finished reading the review and honestly don't know what to make of it. I've been using the galaxy tab for about a month now and I don't think the article does it justice. what would help would be to put tablets into context to begin with.

    I use my notebook at work and when out of office. gaming rig at home for gaming, ripping, editing etc. htpc for cinema. e-ink reader for my books (you will never convince me about backlit reading screens). smartphone for calling and keeping ontop of things.

    then the tab entered my life. now I would write happily trade down my phone to a small flip our candy phone and rely on the tab for the on-the-road emails and info snacking. the form factor is sooooooooo much better for almost everything internet or work related. pdfs can be read in one hit. you can make out all the words on the ppt or website without zooming on every page. it just works better.

    using as my link to exchange, I can quite happily go a day without needing to go back to my desk, and am not the worse off for it. the split screen email client really is nice, and using it you never have that feeling that sometimes you (i) get when relying on the smartphone: "i hope I haven't missed an important email in all of that information on that tiny screen..."

    there are a couple of things that I think also need to be addressed:

    # the preloaded browser is flash enabled. that's right folks, the internet sss it's supposed to be.
    # because it "is a phone" means it can sms and do calls - it had already saved my bacon on an important conference call when I was out of the office - and no I didn't hold it to my head like a taco, the bt pairing to my headset worked fine, first time
    # the self dimming (auto brightness) works really well, going from boosting in daylight to dimming indoors and aboard planes
    # with my usage profile i'm getting about 5days of usage between charges - but the lack of a simple "charge visa usb or mini/micro usb is a real pain
    # if samsung had of been able to include a usb port or mini/micro adapter to usb they would have brought a real category killer to market
    # I've just moved from android to ios on my smartphone. and after the move I must admit that (apart from the lack of swype) I think ios does a much better phone than android - but for me, android on the 7" device is much "better" than on the smartphone size - it seems more interactive and alive with more real estate. I was disappointed with 10" ios but find 7" android amazing.

    overall I'm very impressed, and continue to find a use for it. could I live without it? yes. but am I better off for having it? definitely.
  • nycmetroconsumer - Monday, December 27, 2010 - link

    you must be a non usa user the galaxy tabs are crippled by their importers. i have a Tmobile, non contract, it has a Sim card but i can not make calls, all the USA carriers did this. It should be illegal for them to cripple open source, Also i have been reading that Verizon version of the Tab, you cannot Bluetooth link a keyboard or a mouse type device. You can only use Bluetooth to connect a headphone, all other blue tooth functions are crippled. Verizon is notorious for doing this to all the good phones. i left them, after 15 years due to this crap.
    The T mobile version you cannot use a regular Bluetooth ear piece, it has to be a certain spec something like a2dp. i think it is a stereo , i am not sure if it has talk/speaker capability\
    The European white backed version will not work with t mobile since the freq' s are different.
  • zero2espect - Tuesday, December 28, 2010 - link

    yes. non usa. sorry to hear about u.s. crippling. :-(
  • VivekGowri - Tuesday, December 28, 2010 - link

    Interesting. I was an iPhone user for two years before switching to Android, and I've had an iPad in one form or another almost since the day of launch when I bought a 32GB (ended up returning it, but picked up a 16GB a month later).

    My experience is exactly opposite to yours - I prefer iOS at 10" and Android at smartphone-size, and true to form, those are the form factors the OS were designed for respectively....Especially since they've got the respective ecosystems built around them. That's the problem with the Galaxy Tab - unless you're reading or watching a movie, there's really nothing different than a normal Android smartphone. So why bother carrying it?

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