Samsung Galaxy S II

Basic Specs

Thickness 0.33 inches
Form factor Slab
Screen size (diagonal) 4.3 inches
Operating system Android
Launch OS version 2.3

Recent News

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Tech Specs

Also Known As...

Alias i9100

Hardware

Height 4.93 inches
Width 2.6 inches
Thickness 0.33 inches
Form factor Slab
Color White, Black, Pink
Noise cancellation Hardware (multi-mic)

Display

Screen size (diagonal) 4.3 inches
Technology Super AMOLED Plus
Pixel arrangement RGB
Resolution (Y) 800 px
Resolution (X) 480 px
PPI 217
Touchscreen type Capacitive

Connectivity

GSM Yes
GSM frequencies supported 1900, 1800, 900, 850
UMTS / HSPA Yes
UMTS frequencies supported 900, 2100, 1900, 850
Max WWAN downlink speed 21 Mbps
Max WWAN uplink speed 5.76 Mbps
Wi-Fi Yes
Wi-Fi support 802.11n, 802.11g, 802.11b, 802.11a
802.11n frequencies 5GHz, 2.4GHz
GPS Yes
Bluetooth Yes
Bluetooth version Bluetooth 3.0 + HS
Media streaming DLNA

Processor

Brand / family ARM
Model Cortex A9
Clock speed 1.2 GHz
Number of cores 2

GPU

Model Mali-400 MP

Memory

RAM size 1 GB

Storage

Internal size 16 GB, 32 GB
External Yes
Max external size 32 GB
External type microSD

Front Camera

Resolution 2 megapixels

Rear Camera

Resolution 8 megapixels
Flash LED
Focus type Autofocus
Video resolution 1080p
Video framerate 30

Software

Operating system Android
Skin TouchWiz
Launch OS version 2.3
Notable apps Google Mobile Services

Interface

Headphone jack 3.5mm
Other ports Micro USB, MHL

Sensors

Sensors Compass (Magnetometer), Proximity, Ambient light, Gyroscope, Accelerometer

Battery

Capacity 1650 mAh

Recent News

No recent news about Samsung Galaxy S II.

Recent Discussions

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Login in order to review this product.

  • 9.0
    Show all User reviews

    Reviewed by kalikot (Currently owns)

    I've had the Samsung Galaxy S II i9100 for 6 months and it's been a pleasure as my daily driver.

    The Exynos processor really powers this beast and it's pretty much the smoothest Android experience due to the hardware accelerated touchwiz 4.0 and browser. It's unparalleled in performance and not even the latest from the competition such as the Rezound or Razr can match it when it comes to it. Touchwiz doesnt have the best customization options, but the smoothness and ease of use, along with the Toggles and options make it top notch, even better when you customize it with the mods over at XDA.

    The camera is excellent. It's probably the best camera on a smartphone right now (unless you compare it to the N8) and It's performed favorably compared to the iPhone 4s. The shutter speed is decent but it would help if it focused faster.The 2mp front camera is the best front camera i've used so far and it surprises me with its results.

    Viewing media on this thing is a pleasure due to the codecs. Flash has never performed this well on a mobile device. It doesnt have ANY hiccups, and it's amazing to see the Exynos SoC in action.

    The battery life could be better but it's better than most smartphones especially compared to those HTC ones. It could better and the iPhone 4 outlasts it by a good amount but it's usually enough for a workday and sometimes more.

    The Super AMOLED plus is a joy to behold and the 4.3 inch screen makes colors lively and it's really wonderful to read things compared to an LCD screen. The resolution is not the best compared to the current crop of smartphones but it's not really a huge deterrent as the RGB nature of the Super AMOLED plus works wonders. It's a miracle

    The plastic housing is very light and durable, but it can indeed feel cheap compared to an iPhone, but in turn you get a very slim profile, very light and easy to grip. And adding a case to it remedies the cheap feel. There is always something to improve though.

    One of the major annoyances is that the i9100 (and Note) tends to heat up when performing processor intensive things. It hasnt damaged my phone but it's annoying especially after using it and placing it in my pocket. Also, sound quality isn't the best compared to the iPhone 4 and the first Galaxy S. I would say it's mediocre

    What I really love about the i9100 is the developer community and massive support over at XDA. I've been customizing my phone since I got it and been very happy with the constant official and unofficial updates from the community and Samsung. It's never been faster and the battery has become better with age.

    The Breakdown

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    • Design 8
    • Display 9
    • Camera(s) 9
    • Reception / call quality 8
    • Performance 9
    • Software 8
    • Battery life 7
    • Ecosystem 8
    Show the rest of this review and the breakdown
  • 9.0
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    Reviewed by Iumentum (Currently owns)

    Best mobile investment i've ever done. Bought this back in may, and still one of the best mobiles on the market more than 6 months later. Samsung did a great job on this devise and deserve the success it had. Will consider Galaxy 3 when it hits the streets next year.

    The Breakdown

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    • Design 10
    • Display 9
    • Camera(s) 9
    • Reception / call quality 10
    • Performance 10
    • Software 9
    • Battery life 8
    • Ecosystem 9
    Show the rest of this review and the breakdown
  • 9.0
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    Reviewed by coldonline (Currently owns)

    Excelent, a real keeper. I doubted going from iPhone 4 to SGS2, being in love with the Galaxy S before the iPhone, and then with the iPhone, i must say SGS2 blows it out of the water, at least for my needs.
    Great display, lacking a little bit in resolution nowadays, Very snappy, with raw power inside.
    We´ll see it´s full potential once ICS is stable

    The Breakdown

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    • Design 8
    • Display 9
    • Camera(s) 8
    • Reception / call quality 8
    • Performance 10
    • Software 8
    • Battery life 9
    • Ecosystem 8
    Show the rest of this review and the breakdown
  • 8.0
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    Reviewed by JamieMoxon (Currently owns)

    Great Display, but kills the battery on long use. With Android 4.0 coming early 2012, this phone will be even better. With Most smartphone's today, their battery life lets them down, and it does on this too.
    Hopefully with ICS, Touchwiz is more like the stock android that we have saw on the Galaxy Nexus. My device has had the problem of Voice control randomly booting up also "car mode" being activated,.as alot of people are having. ( previously googled). that has now stopped so my device is back to the awesomeness that it once was.

    Jamie

    The Breakdown

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    • Design 9
    • Display 10
    • Camera(s) 7
    • Reception / call quality 7
    • Performance 9
    • Software 7
    • Battery life 6
    • Ecosystem 6
    Show the rest of this review and the breakdown
  • 9.0
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    Reviewed by Darksideracer (Currently owns)

    This is my second galaxy s phone and I'm completely satisfied with every aspect of the Samsung Galaxy SII.
    Android has long needed a flagship phone that is available on all carries that can compete and surpass
    Iphone in many areas. The nexus is still carrys the torch as being pure Android; but the sgs2 despite not being pure still is a very solid phone.

    The Breakdown

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    • Design 9
    • Display 10
    • Camera(s) 8
    • Reception / call quality 8
    • Performance 9
    • Software 9
    • Battery life 8
    • Ecosystem 9
    Show the rest of this review and the breakdown
  • 9.0
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    Reviewed by Heliography (Currently owns)

    The good old, trusty Galaxy S II, now engraved in every tech geeks heart as being one of the truly innovative phones out there, showing us how beautiful Samsung can really be. White Version

    Design.
    The design is pretty generic, a slab phone. That's all there is to it. It's all about the thiness of the phone that really tricks your hand into thinking you're holding a much smaller phone. It's light, contributed by the fact it is mostly plastic, but it doesn't really get into the general operation of the phone, still providing excellent strength to the phone.

    Display.
    Even though it is a WVGA display, which is disappointing, however, the Super AMOLED Plus display really makes those four letters go away. Every single time I unlock my phone, I am consistently blown away at the sheer beauty of it.

    Reception/Call Quality/Performance/Software
    Since I live in Australia, my phone currently is on Vodafone, known for call dropouts and whatnot, it really is up to your carrier. Performance however, is completely the opposite, always smooth, never lags. Touchwiz does change most things about 2.3, but it's still usable, and with ICS confirmed for the phone, this phone still has a lot of kick.

    Battery Life/Ecosystem
    Battery Life is decent, however, Android does drain it out pretty quickly. Android is still however, the best ecosystem for smartphones now.

    The Breakdown

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    • Design 8
    • Display 10
    • Camera(s) 8
    • Reception / call quality 8
    • Performance 9
    • Software 9
    • Battery life 8
    • Ecosystem 8
    Show the rest of this review and the breakdown
  • 7.0
    Show all User reviews

    Reviewed by Ebony & Ivory (Currently owns)

    When this was released it was the best Android phone on the market and it held that spot for many months. But this is Android and no phone can stay at the stop for too long before it is eclipsed by the next great thing.

    The 4.3 inch Super AMOLED Plus screen is the star of the show. It is great. It features dark blacks and bright saturated colors. It has an 800x600 screen and while low compared to other high-end phones, it still make Android look great and it is a pleasure to use the device for reading, and viewing videos. It come with Android 2.3 and an Android 4.0 update should be forthcoming by mid-2012. Samsung's dual-core processor 1.2 GHz Exynos processor is the best in class. It is also amazingly light and thin! And yes it is a BIG deal. The phone feels great to hold.

    Now for the bad parts. Battery life is not so good. It will last a day of light to normal use, but if you forget to charge it overnight, expect to have a dead battery come morning. Another fault is it's extraordinary cheap build for such a high-end product. It has a flimsy plastic battery door. It has plastic buttons and body. After less than a month with the device, the power button is already starting to wear out and I anticipate sending this off to Samsung to get fixed in the not too distant future when the button finally stop being functional.

    As of the time of this writing (Dec. 2011) there are only two other phone I would get over this one. The Galaxy Nexus and HTC Rezound. Both of those are on Verizon. If you are on any of the other 3 networks, Galaxy SII is you best option.

    I give this a 7.8. If the battery life was better (at least 2 day on a single charge with moderate use) and if the plastic button were more durable this is a 9! Regardless, this is the best Android phone on AT&T, T-mobile and Sprint.

    The Breakdown

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    • Design 8
    • Display 9
    • Camera(s) 6
    • Reception / call quality 6
    • Performance 9
    • Software 7
    • Battery life 4
    • Ecosystem 9
    Show the rest of this review and the breakdown
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