Galaxy S II

Samsung Galaxy S2 vs Galaxy S II Skyrocket Mobile Comparison

The good news is that Samsung Galaxy S II has been released on AT & T on October 2. And within a month Samsung Galaxy S II new variant in the form of Galaxy S II Skyrocket which supports 4G LTE Speed in LTE supported areas in United States.

The Samsung Galaxy S II as expected, is hit phone and competing model with various other manufacturer best phones like iPhone 4S, Galaxy Nexus & other phones.

Here in this article we compare Galaxy S II mobile phone with the AT & T released modified version of Galaxy S II in the form Galaxy S II Skyrocket.

Table of Content

Samsung Galaxy II vs Skyrocket

Form Factor

Samsung Galaxy S II – 125.3 x 66.1 x 8.5 mm
Samsung Galaxy S II Skyrocket – 129.8 x 68.8 x 9.5 mm

There is small variation in both the devices as there is difference in the display screen size. Galaxy S II stands at 9.5 mm thickness where Galaxy S II is lighter at 8.5 form factor.


Samsung Galaxy S II – Dual Core 1.2 GHz processor
Samsung Galaxy S II Skyrocket – Dual core 1.5 GHz processor

Galaxy S II normal version has 1.2 GHz dual core ARM Cortex A9 processor with Samsung’s Exynos 4210 chip. Along with that it uses Mali 400 MP graphical acceleration unit by ARM. The same specification has been used in Galaxy S II Skyrocket but it’s clocked at higher speed of 1.5 GHz. That allows it to take the cutting edge on the normal version.
Winner: Galaxy S II Skyrocket

Operating System

Samsung Galaxy S II – Google Android 2.3 Gingerbread
Samsung Galaxy S II Skyrocket – Google Android 2.3 Gingerbread

The Samsung Galaxy S II ships with the Android 2.3.3 Gingerbread OS and the Galaxy S II Skyrocket comes with the 2.3.4 Gingerbread. There is no much difference in between Gingerbread 2.3.3 and 2.3.4 version of it so that we can discuss much here, except it has some minor improvements & fixes bugs over the earlier versions. Discussing about the Ice Cream Sandwich update of Android, the Galaxy S II along with the Galaxy Note are the devices which will get the Android 4.0 update first.

Display Screen

Samsung Galaxy S II – 4.3 inches Super AMOLED Plus display
Samsung Galaxy S II Skyrocket – 4.5 inches Super AMOLED Plus display

This is the second major difference in the Galaxy S II Skyrocket than the normal one as Skyrocket has 4.5 inches Super AMOLED Plus display and Galaxy S II has 4.3 inches display. Galaxy phones from Samsung with Super AMOLED Plus display presents the best screen with brighter screens, lesser reflection and reduced power consumption. Apart from that both the mobile phones have 800 x 480 pixels resolutions, comes with Gorilla Glass display, multi touch input method and various sensors like accelerometer, proximity and Gyroscope. As usual the TouchWiz user interface of Samsung in also there.

Its left to the users whether they go with 4.5 inches or 4.3 inches as the size matters.


Galaxy S II CameraSamsung Galaxy S II – 8 mega pixel camera with autofocus & Led flash + 2 mega pixel
Samsung Galaxy S II Skyrocket – 8 mega pixel camera with autofocus & Led flash + 2 mega pixel

The Skyrocket edition maintains the same specifications when it comes to camera with 8 mega pixel back illuminated camera with LED flash and autofocus. It also includes as fixed focus front facing camera of 2 mega pixel used for video calling and taking pictures in general. The video recording at 1080p HD at 30 fps is really possible and Galaxy S II has the best camera among the Samsung smartphones.


Galaxy S II batterySamsung Galaxy S II – Li-ion 1650 mAh battery
Samsung Galaxy S II Skyrocket – Li-ion 1850 mAh battery

Yes, there is also difference in the battery specifications of Galaxy S II in comparison with Galaxy S II Skyrocket. As we have gone through the S II Skyrocket display is of 4.5 inches and also supports 4G LTE, probably higher battery specifications is to meet up the power requirement of the larger screen so as it offers up to 8 hours of talk time.


Samsung Galaxy S II – 16 GB / 32 GB internal storage, microSD card supporting 32 GB
Samsung Galaxy S II Skyrocket –16 GB storage, microSD card supporting 32 GB

The original Galaxy S II is available in two variants of 16 GB internal storage and 32 GB internal storage. The modified Skyrocket version comes with 16 GB internal memory and both the phones have the option of expanding the memory using the microSD card slot expandable up to 32 GB in size. Both the phones have 1 GB of dedicated RAM.

Winner: Galaxy S II wins because of two variants availability.

Network & Speed

The Samsung Galaxy S II I9100 original as announced is shipped with 3G HSDPA connectivity and the latest variant of S II Skyrocket adds 4G LTE speed which will allows users to download the data of 10 megabits in a second and uploading speed of 2 to 5 mbps. That is some serious improvements in the speed of how data transfers but the 4G LTE from AT & T is only available in the region like Boston, Washington DC, Athens Georgia and Baltimore. So  that limitation would be the key aspect as users from other states and cities in United States has no reason to go with Skyrocket variant unless are ready to go with 4.5 inches display and faster processor.


The Galaxy S II is among that early Android mobile phone which comes with the native support of near field communication, so called NFC technology. Both the mobile versions compared here have NFC and includes Mobile High definition Link through HDMI and micro USB connectivity options.

Both the phones comes with 802.11 b/g/n Wi-Fi, Bluetooth 3.0 for wireless file transfer and newly introduced Wi-Fi direct can share a song of 5 MB without any processing speed (less than a second). So when it comes to connectivity comparison of both the phones there is no difference at all.

User Interface

Both the phones come with the Samsung TouchWiz 4.0 user interface which adds serious improvements in the field of hardware acceleration. The Gyroscope and accelerometer used within this device adds the gesture functional work both in the browser and in the gallery. There are also improvements in the widget drawer and the layout of the widgets.
The user interface on both the phones remains same and there is no difference.


The Galaxy S II Skyrocket on the AT & T network is priced at $ 249.99 in contract of two years where as Galaxy S II normal edition is available at price of $ 199.99 in United States.

The Verdict

Well, if you are in United States and if you are the city or state where the 4G network for AT & T is expected soon, then there is no reason why you shouldn’t go with Samsung Galaxy S II Skyrocket but in other cases its recommended that you go with the Galaxy S II normal edition since you would be able to receive official updates quite sooner and many other advantages.



  1. gerry

    April 7, 2013 at 1:52 pm

    good article very informative

  2. Navin

    April 5, 2013 at 2:04 pm

    this model
    Samsung Galaxy S II Skyrocket
    is available in india & what is its indian price

  3. Ofer

    September 27, 2012 at 3:09 pm

    Very informative thank you very much.

    • Pradeep Neela

      September 28, 2012 at 3:40 pm

      thanks for your appreciation

  4. Michael Adams

    September 3, 2012 at 7:01 am

    I am sorry but I don’t believe that there is a clear winner when it comes to the processor. The SGS2 has the Samsung’s Exynos 1.2 dual core processor and the Skyrocket has a 1.5 dual core snapdragon processor ( due to the fact that the Exynos processor does not have support for LTE so Samsung had to exchange it for a Snapdragon). Although the Skyrocket is clocked at 1.5ghz is has the aging snapdragon chipset. The S2 might be clocked at 1.2ghz but it has a newer Exynos chipset that has been proved to run neck in neck with the 1.5ghz Snapdragon. It is a very close call the Skyrocket does not have as much as a lead as you would think and with real world applications you probably not notice any speed difference at all. However the Skyrocket takes the cake when it comes to network speed because of LTE. The Skyrocket also showed just a little bit faster speeds in HSPA+ 4g speeds.

  5. Devin likes guys bags of dicks

    June 18, 2012 at 2:31 pm

    He sent me pics

  6. baptiste

    May 6, 2012 at 10:13 am

    Stupid article….really stupid!

  7. Devin

    January 5, 2012 at 6:34 am

    That’s great to know. I recently picked up the Samsung Galaxy S II Skyrocket and I have to say that get more and more impressed with this phone as time goes by. I’m in the San Francisco Bay Area and we aren’t officially listed as a LTE network area, however in certain cites I am able to get LTE speeds (18mbps down/8mbps up) which is just phenomenal! Plus the app selections without the need to jailbreak/root my device are just awesome. The marriage of Samsung, Android and AT&T LTE has made me a smartphone lover once again! I haven’t felt this good about a smartphone since the Sony Ericsson P1i and the Apple iPhone 3GS. 🙂

  8. Yohon Connor

    December 8, 2011 at 10:41 pm

    The SGS2 Skyrocket, lasts me all day, whether I’m in DC working and making LTE calls plus data all day, & I even get to watch a movie on the way home. 12.8 hrs without a power injection.that’s a full day too.

    As you can imagine in Philly, I’m getting almost 24 hrs, and have one of those 7000mAh New Trent on the go power packs, (we go hardcore from the city to AC)I’ve had to let my buddy, charge his SGS2 (hours & hours before) when he starts puttering out from the smaller battery…see not needing LTE, plus the fact the 4.5\ AMOLED doesn’t use any more power then the 4.3\ puts skyrocket in another hemisphere.
    I’ll admit forgetting to turn off the Bluetooth, can be painful.
    BTW AT&T had Android 2.4.6 ready to update out of the box the day I got mine…the AT&T rep, told us we’d both get 4.0 the same day…

  9. Richard

    November 17, 2011 at 9:42 pm

    The processor of the Skyrocket is the Snapdragon S3 and not an overclocked Exynos. (Because Qualcomm has an LTE chip) For it’s extra 300 mhz, it’s pretty much on par CPU-wise but the original SII GPU is miles ahead in terms of performance. If you had to pick a winner in the processor category, the original SII hould be it.

  10. Pingback: HTC Sensation XE vs Samsung Galaxy SII Mobile Comparison | Android Advices

  11. callisto

    November 8, 2011 at 7:04 am

    The Galaxy s range just gets better and better

  12. Don

    November 6, 2011 at 8:09 pm

    The battery comparison gives the correct analysis, but you reversed the specs. It correctly is SGS2 1650maH, while the SGS2 Skyrocket is 1850maH

    • Yogesh Patel

      November 7, 2011 at 9:14 am

      Yes, corrected!

  13. Highwind

    November 6, 2011 at 6:58 am

    Are you sure you did not flip the battery specifications. Shouldn’t the skyrocket be 1850 ?
    Also, how easily can they be rooted/unlocked?

    • Yogesh Patel

      November 7, 2011 at 9:20 am

      Flipped it.!:P

  14. Prasad

    November 6, 2011 at 4:30 am

    Very much informative & well compared between these models. There is no doubt that Samsung is simply rocking. it is well ahead of many other smart phones.

    • Yogesh Patel

      November 7, 2011 at 9:21 am

      Yes it is.

  15. kemo

    November 5, 2011 at 8:48 pm

    i good

  16. Ranger

    November 4, 2011 at 10:34 pm

    I don’t know. I don’t live in a city with LTE and the battery life is the key concern. I love how long the standard GS2 lasts. Its a little more than enough to get me through a full day and I use this phone alot. As battery life diminishes over time like it did my iphone there’s no way I wanna deal with that annoyance of always searching for a place to charge my phone.

    • Yogesh Patel

      November 5, 2011 at 3:08 pm

      SGS2 will also last for complete one day backup with phone calls, music usage, network usage and little other work.

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