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Compare 4 products

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Apple iPhone 3G Mobile Phone
Apple iPhone 3G
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Apple iPhone 4 Mobile Phone
Apple iPhone 4
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Samsung Galaxy S2 Mobile Phone
Samsung Galaxy S2
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Samsung Galaxy S2 Skyrocket Mobile Phone
Samsung Galaxy S2 Skyrocket
Editiorial reviews
19
4.2 out of 5
10 user ratings
5 stars
30 %
4 stars
70 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
19
4.3 out of 5
9 user ratings
5 stars
44 %
4 stars
55 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
17
3.9 out of 5
9 user ratings
5 stars
44 %
4 stars
44 %
3 stars
0 %
2 stars
0 %
1 stars
11 %
Read editorial reviews
3
3 editorial reviews
Who knew AT&T's version of the Samsung Galaxy S II had a younger, larger brother on the way? Just a hair over a month after the carrier launched its flagship Android device, it's already set for another go-round.Read more
Samsung Galaxy S II SkyrocketRead more
Read editorial reviews
User rating
35
4.0 out of 5
35 user ratings
5 stars
22 %
4 stars
57 %
3 stars
20 %
2 stars
0 %
1 stars
0 %
41
4.3 out of 5
41 user ratings
5 stars
41 %
4 stars
43 %
3 stars
14 %
2 stars
0 %
1 stars
0 %
40
4.1 out of 5
40 user ratings
5 stars
35 %
4 stars
42 %
3 stars
22 %
2 stars
0 %
1 stars
0 %
40
4.3 out of 5
40 user ratings
5 stars
45 %
4 stars
35 %
3 stars
20 %
2 stars
0 %
1 stars
0 %

Hardware

Operating systemApple IOS 4Apple iOS 7Android 4.1Android 4.1
CPU clock speed0.6 GHz1.0 GHz1.2 GHz1.5 GHz
CPU coresSingle-coreSingle-coreDual-coreDual-core
GPU modelPowerVR MBX LitePowerVR SGX535ARM Mali-400Qualcomm Adreno 220
RAM memory128 MB512 MB1 GB1 GB
CPU model
N/A
Apple A4
N/A
Qualcomm Snapdragon S3 MSM8260

Display

Screen size3.5 in3.5 in4.3 in4.5 in
Touchscreenyesyes
N/A
N/A
Number of colors16.7M16.7M16.7M16.7M
Panel typeLCDLCDOLEDOLED
Resolution480 x 320 px960 x 640 px800 x 480 px800 x 480 px
Pixel density165.0 ppi326.0 ppi217.0 ppi207.0 ppi
Dual screen supportnono
N/A
yes
Scratch resistant displaynoyes
N/A
N/A
HDRnono
N/A
N/A
Technology
N/A
IPS TFTSuper AMOLEDSuper AMOLED
Multi touch
N/A
yesyesyes
Screen material
N/A
N/A
Corning Gorilla Glass
N/A

Rear camera

Primary sensor resolution2.0 Mpx5.0 Mpx8.0 Mpx8.0 Mpx
Video recordingnoyes
N/A
N/A
Geo-taggingyesyesyesyes
Primary lens aperture
N/A
2.8 f2.6 f
N/A
Highest video resolution
N/A
1280 x 720 px1920 x 1080 px1920 x 1080 px
Maximum FPS at the highest resolution
N/A
30.0 fps
N/A
N/A
Autofocus
N/A
yesyesyes
Digital zoom
N/A
yesyesyes
HDR Capture
N/A
yesyesyes
LED Flash
N/A
yesyesyes
Touch focus
N/A
yesyesyes
Digital Image Stabilization
N/A
N/A
yesyes
Face detection
N/A
N/A
yes
N/A
Panorama
N/A
N/A
yesyes
Smile detection
N/A
N/A
yesyes

Storage

Internal storage
  • 16 GB
  • 8 GB
  • 16 GB
  • 32 GB
  • 8 GB
  • 16 GB
  • 32 GB
N/A
Memory card readernonoyesyes
Types of memory card supportedNo memory slotNo memory slotmicroSDmicroSD
Maximum card storage
N/A
N/A
32GB32GB

Dimensions

Height4.55 in4.54 in4.93 in5.15 in
Width2.44 in2.31 in2.6 in2.75 in
Depth0.48 in0.37 in0.33 in0.37 in
Weight4.69 oz4.83 oz4.09 oz4.66 oz

Sensors

Accelerometeryesyesyesyes
Proximityyesyesyesyes
Ambient light sensoryesyesyesyes
Digital compass
N/A
yesyesyes
Gyroscope
N/A
yesyesyes

Connectivity

Dual sim supportnononono
Sim card sizeMini-SIMMicro-SIMMini-SIMMini-SIM
DLNA certifiednonoyesyes
Bluetoothyesyesyesyes
Bluetooth version2.0 EDR2.1 EDR3.0 HS3.0 HS
Bluetooth profileA2DP
  • A2DP
  • AVRCP
N/A
N/A
NFCnono
N/A
yes
Charging connection
  • Apple 30-pin
  • Lightning
  • Apple 30-pin
  • Lightning
N/A
HDMI
Headphone connection3.5 mm3.5 mm3.5 mm3.5 mm
Video outputNoManufacturer specific
N/A
N/A
Type of USB connector
N/A
N/A
Micro-USBMicro-USB
USB On-The-Go (OTG)
N/A
N/A
yesyes

Cellular

Wireless network (Wi-Fi)yesyesyesyes
Wireless networking standard
  • 802.11b
  • 802.11g
  • 802.11b
  • 802.11g
  • 802.11n
N/A
N/A
Data transmissionHSDPA
N/A
HSPA+HSDPA
Navigation systemA-GPSA-GPSGPSGPS
2G GSMyesyesyesyes
GSM frequencies
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
  • 2100 MHz
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
3G UMTSyesyes
N/A
N/A
UMTS frequences
  • 850 MHz
  • 1900 MHz
  • 2100 MHz
  • 850 MHz
  • 900 MHz
  • 1900 MHz
  • 2100 MHz
  • 850 MHz
  • 900 MHz
  • 1900 MHz
  • 2100 MHz
N/A
4G LTEnonoyesyes
Mobile hotspot
N/A
yesyesyes
LTE frequencies
N/A
N/A
N/A
  • 700 MHz
  • 1700 MHz
  • 2100 MHz

Battery

Replaceable batterynono
N/A
yes
Battery typeLithium ionLithium ionLithium ionLithium ion
Battery capacity1150.0 mAh1420.0 mAh1650.0 mAh1850.0 mAh
Standby time300.0 h300.0 h710.0 h256.0 h
Talk time5.0 h7.0 h18.0 h7.0 h
Fast chargingnono
N/A
N/A
Wireless charging nono
N/A
N/A

Often compared with Apple iPhone 3G

Often compared with Apple iPhone 4

Often compared with Samsung Galaxy S2

Often compared with Samsung Galaxy S2 Skyrocket