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
POST A COMMENT

132 Comments

View All Comments

  • ph0tek - Sunday, September 11, 2011 - link

    First of all Android is better than iOS in so many ways that i'd be here all day listing them..... and the same goes for this phones hardware compared to the iPhone so i wont even bother!

    Secondly the S2 might have a slightly lower display res but it has better response times, infinitely better contrast, vastly better blacks, more vibrant colours, plus superior viewing angles. And all this on a screen that isn't stupidly tiny. It's clearly better overall.
    Everyone who i've shown to this phone to instantly says the screen is the best they've seen, even iPhone users.

    With the battery theres not much difference, it has longer battery life for talk time than iPhone, and also longer battery when using hotspots, while displaying Flash content too! Yes you can view the WHOLE web on this.

    I find it very amusing that you even try to compare the iPhone to this. Theres simply no comparison. Like comparing a ferrari to a skoda. Just makes you look stupid.
    Reply
  • niva - Monday, September 12, 2011 - link

    Why are you arguing with an iFanboy? Reply
  • LostViking - Saturday, September 17, 2011 - link

    You could argue that the SGS 2 is better (for me it wins hands down), and you could argue that the iPhone 4 is better.

    Some people get sever rashes all over their body by using products not made by Apple ;)
    For those people the original iPhone beats the SGS 2 and all future Android devices easily :)
    Reply
  • jjj - Sunday, September 11, 2011 - link

    hard to like any new phone now when Krait and A15 are around the corner. Reply
  • killerroach - Sunday, September 11, 2011 - link

    Remember... there's ALWAYS something around the corner. Reply
  • jjj - Monday, September 12, 2011 - link

    Actually there is rarely something like this around the corner.This time we got both new cores and a new node (and the jump from 40/45 nm to 28 nm is pretty big). Reply
  • 3lackdeath - Sunday, September 11, 2011 - link

    Nice phone but WP7 is faster and smoother. Reply
  • OBLAMA2009 - Sunday, September 11, 2011 - link

    400x800? no thx Reply
  • MacTheSpoon - Sunday, September 11, 2011 - link

    What a staggeringly awesome review. I am really impressed. The audio section--wow.

    I sure wish the screen were brighter and the audio better on this phone, but I have to put it on my short list.
    Reply
  • Piyono - Sunday, September 11, 2011 - link

    "There, Anand and *I* played with..." Reply

Log in

Don't have an account? Sign up now