Battery

Even though it’s almost at the end of our review, battery life is hugely important, and measuring up how SGS2 does compared to the competition is a large part of what makes things pretty positive for the device. As a reminder, we measure battery life by having the browser load through a few dozen pages with brightness set on 200 nits until the phone dies, on both WiFi and cellular (WCDMA). The SGS2 has a capacious 6.11 Whr battery, which is among a small number of devices I’ve seen that come with over a 6 Whr battery by default.

Smartphone Web Browsing Battery Life

WiFi Web Browsing Battery Life

3G Talk Time Battery Life

The SGS2 outperforms its predecessors pretty handily, and I’ve highlighted in orange those results from the Galaxy S 4G and Fascinate. When you factor in that SGS 4G has the same capacity 6.11 Whr battery, it’s obvious how much of the gains are both SAMOLED+ efficiency and a dual core SoC.

WiFi Hotspot Battery Life Time

In the WiFi hotspot test, the SGS2 actually trounces everything else I’ve seen thus far as well, edging out the Inspire 4G. As a reminder, that test consists of loading 4 sets of the page load test alongside a 128 kbps MP3 stream with the display off until the phone dies.

The last thing to talk about with respect to battery life is the infamous “AOS Bug,” where AOS references the Android OS line item in the battery use window. I’ve read just about everything there is I could find on this bug, and believe it to just be related to how Android reports this metric based on CPU time that a process and its children use. Some have speculated this is something which has showed up with dual core SoCs. To be completely honest, I don’t put much stock in the line-item breakdown of battery use to begin with, what I look at is the graph view. Either way, the battery numbers above speak for themselves, and SGS2 battery life is definitely superior to the predecessor, AOS issue or not.

Conclusions and Final Thoughts

It’s always difficult to sum up a device like the SGS2, because this is such a major launch and so much has already been written and discovered about the phone. I find myself again thinking back to how long it’s been since we first played with the SGS2 at MWC and just how far the device has come. It literally is a completely different device today than what Anand and I played with chained to a table in Barcelona.


From back at MWC in Barcelona

There’s no doubt in my mind that SGS2 is the most powerful smartphone out right now, both in the synthetics and in just subjective feel. That’s thanks in large part to Exynos 4210’s dual core Cortex A9s at 1.2 GHz and ARM’s Mali–400 GPU. The end result is an experience that’s buttery smooth and rarely shows any signs of being want for more power. Mali–400 alone is twice as fast as any other smartphone GPU out right now, and Exynos 4210 seems likely to vie for performance crown in Android-land until the start of 2012.

The original Galaxy S was a hugely popular Android phone, and thankfully the few issues that were around that generation have been ironed out this second time around. The result is a device that is better in almost every category. Battery life is longer than the predecessor. Performance is much higher. Super AMOLED uses the much more readable RGB stripe. GPS works this go around. Camera stills and video are awesome. The list goes on.


Some Photos Courtesy Sarah Trainor

That said there are still a few lingering areas which the SGS2 wavers. Audio quality from the Yamaha codec in the SGS2 isn’t up to the level of quality the Wolfson was capable of, and there are some potentially frustrating baseband instability issues we ran into as well. There’s also the notable omission of NFC in all but the Korean version of the SGS2, and it looks as though only certain variants coming to the USA will have NFC.

The international market is a whole lot more efficient than the situation we have to deal with here in the USA. Phones launch in largely the form the manufacturer originally intended them to, and as a result there’s a single target for both enthusiast ROM modders and the handset vendor to build and test software on. More and more, it’s really that kind of long-term support that makes a handset valuable, and SGS2 is such a huge success already that it isn’t likely to be obsolete in just a few months, even with Kal-El phones and a new Nexus looming on the horizon.

I really have to admit that I went into this review expecting to be massively underwhelmed with Galaxy S 2. Here we are at the end though, I find my thoughts about the device completely changed. Even taking into account the near term Android roadmap, Galaxy S 2 is the Android smartphone I’d absolutely buy today.

GPU Performance: Staggering
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  • ph00ny - Sunday, September 11, 2011 - link

    Btw you can launch search by holding down the menu button Reply
  • Aloonatic - Sunday, September 11, 2011 - link

    Just curious, but have MS given up on the smartphone market? Or have I just missed out on all the new (or soon to be release) WP7 devices?

    At this rate, I'm just going to have to go with Android and a SGS II, even though I'd love a WP7 phone, but what there is out there are just all old handsets, and I'd have to change carrier to get one now too, as T-Mobile (UK) don't seem to sell them at all any more!?!?!?111!
    Reply
  • dagamer34 - Sunday, September 11, 2011 - link

    If I had to guess, OEMs are working on their new handsets, but want to load them with Windows Phone 7.5, which only RTMed officially a few weeks ago.

    My best guess is we'll see some more phones around October or so, with a Galaxy S II shaped WP7 device.
    Reply
  • Aloonatic - Sunday, September 11, 2011 - link

    Well, October is what I figured too, but... We're already over a week into September and there still aren't any "coming soon" 7.5 devices to be seen anywhere, so I'd be surprised if October (as in the start of October) is anything but wishful thinking.

    It starting to seem like MS just aren't that bothered. Where's the "ooh, look at this coming soon phone" stuff? The SGS 2 like WP7 phone has been mentioned all over the web for months, but there's nothing remotely official, and with only the odd photo shopped image from net dreamers.

    It's a shame, as I'm not a fan of Apple, their products or how they behave. And I've tried Android and been annoyed by their poor updating system, where too many companies have been allowed to let year old hardware languish at the back of the update queue (if it's lucky) while the new devices get all the attention and you're left with juddering menus and in some cases shocking security holes.

    Maybe it's just me, and my problem, for hoping that WP7 might offer a solution to my woes, but MS are just leaving this all waaaaaaayyyyy too late. By the time they get to the party someone will be handing them a bin bag and asking them to help clear up.
    Reply
  • ph00ny - Sunday, September 11, 2011 - link

    What do you mean? It was in the video presentation for the mango announcement month or two ago

    http://www.youtube.com/watch?v=ABO_LyD_SXs

    right around :40 he whips it out of the pocket. I guess he couldn't wait to use it as his daily phone
    Reply
  • Aloonatic - Sunday, September 11, 2011 - link

    Oh, so they have a few units the they showed on a video presentation that who saw exactly?

    Yes, I may have been exaggerating slightly before (and I know that that doesn't stand on geek boards) and we've all (well, a reasonable percentage, as I am sure that at least 1 person reading this hasn't) seen the "leaked" video that no one *wink wink* should video and get out.... But really, there's nothing to be seen here. Those videos are no more proof of a finished product than a concept car at a motor show.

    I'm just disappointed that they hare dragging their feet on this product, and really don't seem to care either.
    Reply
  • ph00ny - Sunday, September 11, 2011 - link

    This was posted on a lot of major tech blog/news sites. As for devices, there are quite a few announced devices but they're all waiting for the mango update Reply
  • vision33r - Monday, September 12, 2011 - link

    Samsung phones are outdated in one quarter. They release small updated features to the same platform.

    The Galaxy line had 4-5 different variant versions within the same year.

    This makes update very difficult for them and also buyer confusion.

    I'll stick with HTC, since Samsung takes forever to fix software and issue timely updates.
    Reply
  • ph00ny - Monday, September 12, 2011 - link

    which device outside of the US carrier branded ones didn't get updates as soon as HTC devices? In fact, which android device manufacturer doesn't release 4-5 different variants within the same year? Reply
  • aegisofrime - Sunday, September 11, 2011 - link

    Had mine here in Singapore for about 3 months now, and you Americans will be joining the party with plenty of custom ROMs and kernels to choose from :)

    So yeah, welcome to the party!

    This forum will probably be your new best friend now:

    http://forum.xda-developers.com/forumdisplay.php?f...
    (Galaxy S II Original Android Development)
    Reply

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