Apple iPhone X vs Apple iPhone 4S vs Apple iPhone 4 comparison

Compare Apple iPhone X
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General
Release dateSeptember 2017October 2011June 2010-
Form factorTouchscreenTouchscreenTouchscreen-
Dimensions (mm)143.60 x 70.90 x 7.70115.20 x 58.66 x 9.30115.20 x 59.00 x 9.30-
Weight (g)174.00140.00137.00-
Battery capacity (mAh)-14301420-
Removable batteryNoNoNo-
Colours-Black, WhiteBlack-
SAR ValueNANANA-
Display
Screen size (inches)5.803.503.50-
TouchscreenYesYesYes-
Resolution1125x2436 pixels640x960 pixels640x960 pixels-
Pixels per inch (PPI)-326326-
Hardware
Processorhexa-core800MHz dual-core--
Processor makeApple A11 Bionic---
RAM-512MB512MB-
Internal storage64GB16GB8GB-
Expandable storageNoNoNo-
Camera
Rear camera12-megapixel8-megapixel5-megapixel-
FlashYesYesYes-
Front camera7-megapixel0.3-megapixel0.3-megapixel-
Software
Operating SystemiOS 11iOS 6.1.3iOS 6.1.3-
Connectivity
Wi-FiYesYesYes-
Wi-Fi standards supported802.11 a/b/g/n/acNANA-
GPSYesYesYes-
BluetoothYes, v 5.00Yes, v 4.00Yes, v 2.10-
NFCYesNoNo-
InfraredNoNoNo-
Headphones--3.5mm-
FMNoNoNo-
Number of SIMs111-
SIM1
SIM TypeNano-SIMMicro-SIMMicro-SIM-
GSM/CDMAGSMGSMGSM-
3GYesYesYes-
4G/LTEYesNoNo-
Sensors
Compass/ MagnetometerNoYesYes-
Proximity sensorYesYesYes-
AccelerometerYesYesYes-
Ambient light sensorYesYesYes-
GyroscopeYesYesYes-
BarometerYesNoNo-
Temperature sensorNoNoNo-