Apple iPhone 7s vs Samsung Galaxy S8 vs Samsung Galaxy S7 vs Samsung Galaxy S6 comparison

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Ratings
Overall NDTV Rating-
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for money Rating-
General
Release date-March 2017February 2016March 2015
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)-148.90 x 68.10 x 8.00142.40 x 69.60 x 7.90143.40 x 70.50 x 6.80
Weight (g)-155.00152.00138.00
Battery capacity (mAh)-300030002550
Removable batteryNoNoNoNo
Colours-Midnight Black, Orchid Gray, Arctic Silver, Coral Blue, Maple Gold--
SAR ValueNANANANA
Display
Screen size (inches)4.705.805.105.10
TouchscreenYesYesYesYes
Resolution750x1330 pixels1440x2960 pixels1440x2560 pixels1440x2560 pixels
Pixels per inch (PPI)-570577577
Hardware
Processorquad-core1.9GHz octa-core1.6GHz octa-core1.5GHz octa-core
Processor makeA11Samsung Exynos 8895-Samsung Exynos 7420
RAM2GB4GB4GB3GB
Internal storage64GB64GB32GB32GB
Expandable storageNoYesYesNo
Expandable storage type-microSDmicroSD-
Expandable storage up to (GB)-256200-
Camera
Rear camera12-megapixel12-megapixel12-megapixel16-megapixel
FlashNoYesYesYes
Front camera7-megapixel8-megapixel5-megapixel5-megapixel
Software
Operating SystemiOS 11Android 7.0Android 6.0Android 5.0
Skin---TouchWiz
Connectivity
Wi-FiYesYesYesYes
Wi-Fi standards supported802.11 a/b/g802.11 a/b/g/n/ac802.11 a/b/g/n/ac802.11 a/b/g/n/ac
GPSYesYesYesYes
BluetoothYesYesYes, v 4.20Yes, v 4.10
NFCNoYesYesYes
InfraredNoNoNoYes
Headphones-3.5mm3.5mm3.5mm
FMNoNoNoNo
Number of SIMs1121
SIM1
SIM TypeNano-SIM--Nano-SIM
GSM/CDMAGSMGSMGSMGSM
3GYesYesYesYes
4G/LTEYesYesYesYes
SIM2
GSM/CDMA--GSM-
3G--Yes-
4G/LTE--Yes-
Sensors
Compass/ MagnetometerNoYesYesYes
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYesYesYesYes
GyroscopeNoYesYesYes
BarometerNoNoYesYes
Temperature sensorNoNoNoNo