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Compare 4 products

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Apple iPhone 4S Mobile Phone
Apple iPhone 4S
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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
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Samsung Galaxy S20 Mobile Phone
Samsung Galaxy S20
Editiorial reviews
18
4.2 out of 5
10 user ratings
5 stars
40 %
4 stars
50 %
3 stars
10 %
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
Read more
Samsung Galaxy S II SkyrocketRead more
Read editorial reviews
19
4.3 out of 5
12 user ratings
5 stars
41 %
4 stars
58 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
User rating
37
4.3 out of 5
37 user ratings
5 stars
48 %
4 stars
35 %
3 stars
16 %
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 %
40
4.3 out of 5
40 user ratings
5 stars
40 %
4 stars
52 %
3 stars
5 %
2 stars
2 %
1 stars
0 %

Hardware

Operating systemApple iOS 9Android 4.1Android 4.1Android 10
CPU clock speed1.0 GHz1.2 GHz1.5 GHz2.73 GHz
CPU coresDual-coreDual-coreDual-core8-core
CPU modelApple A5 APL2498
N/A
Qualcomm Snapdragon S3 MSM8260Samsung Exynos 990
GPU modelPowerVR SGX543ARM Mali-400Qualcomm Adreno 220
N/A
RAM memory512 MB1 GB1 GB8 GB

Display

Screen size3.5 in4.3 in4.5 in6.2 in
Touchscreenyes
N/A
N/A
N/A
Number of colors16.7M16.7M16.7M16.7M
Panel typeLCDOLEDOLEDOLED
Resolution960 x 640 px800 x 480 px800 x 480 px3200 x 1440 px
TechnologyIPS TFTSuper AMOLEDSuper AMOLEDInfinity-O Dynamic AMOLED 2X
Pixel density326.0 ppi217.0 ppi207.0 ppi563.0 ppi
Dual screen supportno
N/A
yes
N/A
Scratch resistant displayyes
N/A
N/A
N/A
HDRno
N/A
N/A
yes
Multi touchyesyesyes
N/A
Screen material
N/A
Corning Gorilla Glass
N/A
Corning Gorilla Glass 6.0

Rear camera

Primary sensor size1/3.2"
N/A
N/A
N/A
Primary sensor resolution8.0 Mpx8.0 Mpx8.0 Mpx64.0 Mpx
Video recordingyes
N/A
N/A
N/A
Highest video resolution1920 x 1080 px1920 x 1080 px1920 x 1080 px
N/A
Maximum FPS at the highest resolution30.0 fps
N/A
N/A
N/A
Maximum FPS (regardless of res.)30.0 fps
N/A
N/A
N/A
Max resolution (highest frame rate)1920 x 1080 px
N/A
N/A
N/A
Autofocusyesyesyes
N/A
Digital zoomyesyesyes
N/A
Face detectionyesyes
N/A
N/A
Geo-taggingyesyesyes
N/A
HDR Captureyesyesyes
N/A
LED Flashyesyesyes
N/A
Panoramayesyesyes
N/A
Touch focusyesyesyes
N/A
Primary lens aperture
N/A
2.6 f
N/A
N/A
Digital Image Stabilization
N/A
yesyes
N/A
Smile detection
N/A
yesyes
N/A
Resolution (second camera)
N/A
N/A
N/A
12.0 Mpx
Resolution (third camera)
N/A
N/A
N/A
12.0 Mpx
Lens aperture (second camera)
N/A
N/A
N/A
F/2.2
Lens aperture (third camera)
N/A
N/A
N/A
F/1.8
Primary Field of View (FoV)
N/A
N/A
N/A
76.0 °
Field of View (FoV) (second camera)
N/A
N/A
N/A
120.0 °
Field of View (FoV) (third camera)
N/A
N/A
N/A
79.0 °
Focus adjustment
N/A
N/A
N/A
  • Automatic
  • Manual

Front camera

Primary resolution0.3 Mpx2.0 Mpx2.0 Mpx10.0 Mpx
Primary Field of View (FoV)
N/A
N/A
N/A
76.0 °
Focus adjustment
N/A
N/A
N/A
  • Automatic
  • Manual
Lens aperture
N/A
N/A
N/A
F/2.2

Dimensions

Height4.54 in4.93 in5.15 in5.97 in
Width2.31 in2.6 in2.75 in2.72 in
Depth0.37 in0.33 in0.37 in0.31 in
Weight4.94 oz4.09 oz4.66 oz5.75 oz

Sensors

Accelerometeryesyesyesyes
Proximityyesyesyesyes
Digital compassyesyesyes
N/A
Ambient light sensoryesyesyes
N/A
Gyroscopeyesyesyesyes
Barometer
N/A
N/A
N/A
yes

Connectivity

Dual sim supportnononoyes
Sim card sizeMicro-SIMMini-SIMMini-SIM
  • Electronic SIM card
  • Nano SIM
  • Nano-SIM
  • e-SIM
DLNA certifiedyesyesyes
N/A
Bluetoothyesyesyesyes
Bluetooth version4.03.0 HS3.0 HS5.0 LE
Bluetooth profile
  • A2DP
  • AVRCP
N/A
N/A
N/A
Bluetooth codecSBC
N/A
N/A
N/A
NFCno
N/A
yesyes
Charging connection
  • Apple 30-pin
  • Lightning
N/A
HDMIUSB
Headphone connection3.5 mm3.5 mm3.5 mm
N/A
Video outputManufacturer specific
N/A
N/A
N/A
Type of USB connector
N/A
Micro-USBMicro-USBUSB Type-C
USB On-The-Go (OTG)
N/A
yesyes
N/A

Cellular

Wireless network (Wi-Fi)yesyesyes
N/A
Wireless networking standard
  • 802.11b
  • 802.11g
  • 802.11n
N/A
N/A
N/A
Data transmissionHSPA+HSPA+HSDPA
  • EDGE
  • FDD-LTE
  • GPRS
  • HSDPA
  • HSPA+
  • HSUPA
  • LAA
  • TDD-LTE
  • VoLTE
  • VoWiFi
Navigation systemGLONASSGPSGPS
  • GPS
  • GLONASS
  • BeiDou
  • Galileo
2G GSMyesyesyes
N/A
GSM frequencies
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
  • 1800 MHz
  • 1900 MHz
  • 850 MHz
  • 900 MHz
3G UMTSyes
N/A
N/A
N/A
UMTS frequences
  • 850 MHz
  • 900 MHz
  • 1900 MHz
  • 2100 MHz
  • 850 MHz
  • 900 MHz
  • 1900 MHz
  • 2100 MHz
N/A
  • 1700 MHz
  • 1900 MHz
  • 2100 MHz
  • 850 MHz
  • 900 MHz
CDMA frequences
  • 800 MHz
  • 1900 MHz
N/A
N/A
N/A
4G LTEnoyesyes
N/A
Mobile hotspotyesyesyes
N/A
LTE frequencies
N/A
N/A
  • 700 MHz
  • 1700 MHz
  • 2100 MHz
N/A

Battery

Replaceable batteryno
N/A
yes
N/A
Battery typeLithium ionLithium ionLithium ion
N/A
Battery capacity1432.0 mAh1650.0 mAh1850.0 mAh4000.0 mAh
Standby time200.0 h710.0 h256.0 h
N/A
Talk time8.0 h18.0 h7.0 h20.0 h
Fast chargingno
N/A
N/A
N/A
Wireless charging no
N/A
N/A
yes
Wireless charging standard
N/A
N/A
N/A
  • WPC
  • PMA
  • Qi
  • Fast Wireless Charging 2.0
  • Wireless PowerShare

Often compared with Apple iPhone 4S

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Often compared with Samsung Galaxy S2

Samsung Galaxy S2 Mobile Phone
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SamsungGalaxy S2
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Often compared with Samsung Galaxy S2 Skyrocket

Samsung Galaxy S2 Skyrocket Mobile Phone
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SamsungGalaxy S2

Often compared with Samsung Galaxy S20

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