Vivo X21 vs Google Pixel 2 vs Apple iPhone 7 comparison

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ratings
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Design Rating
Display Rating
Software Rating
Performance Rating
Battery Life Rating
Camera Rating
Value for Money Rating
key specs
Display6.28-inch5.00-inch4.70-inch
ProcessorQualcomm Snapdragon 660Qualcomm Snapdragon 835Apple A10 Fusion
Front Camera12-megapixel 8-megapixel7-megapixel
Rear Camera12-megapixel + 5-megapixel 12.2-megapixel12-megapixel
RAM6GB4GB2GB
Storage128GB64GB32GB
Battery Capacity3200mAh2700mAh1960mAh
OSAndroid 8.1Android 8.0.0iOS 10
Resolution1080x2280 pixels1080x1920 pixels750x1334 pixels
general
BrandVivoGoogleApple
ModelX21Pixel 2iPhone 7
Release dateMarch 1, 2018November 1, 2017September 1, 2016
Launched in IndiaYes-Yes
Form factorTouchscreenTouchscreenTouchscreen
Dimensions (mm)154.50 x 74.80 x 7.40145.70 x 69.70 x 7.80138.30 x 67.10 x 7.10
Weight (g)156.20143.00138.00
Battery capacity (mAh)320027001960
Removable batteryNoNoNo
Fast chargingProprietary--
ColoursBlack, GoldJust Black, Clearly White, Kinda BlueRed, Rose Gold, Gold, Silver, Black, Jet Black
SAR value-0.92-
display
Screen size (inches)6.285.004.70
TouchscreenYesYesYes
Resolution1080x2280 pixels1080x1920 pixels750x1334 pixels
Aspect ratio19:9-16:9
Pixels per inch (PPI)--326
hardware
Processor2.2GHz octa-core1.9GHz octa-core2.34GHz quad-core
Processor makeQualcomm Snapdragon 660Qualcomm Snapdragon 835Apple A10 Fusion
RAM6GB4GB2GB
Internal storage128GB64GB32GB
Expandable storageYesNoNo
Expandable storage typemicroSD--
Expandable storage up to (GB)256--
camera
Rear camera12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4)12.2-megapixel12-megapixel (f/1.8)
Rear autofocusPhase detection autofocus-Phase detection autofocus
Rear flashLEDDual LEDDual LED
Front camera12-megapixel (f/2.0)8-megapixel7-megapixel (f/2.2)
Front flash-No-
software
Operating systemAndroid 8.1Android 8.0.0iOS 10
SkinFunTouch 4.0--
connectivity
Wi-FiYesYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac802.11 a/b/g/n/ac802.11 a/b/g/n/ac
GPSYesYesYes
BluetoothYes, v 5.00Yes, v 5.00Yes, v 4.20
NFCNoYesYes
InfraredNoNoNo
USB OTGYesYesNo
Micro-USBYes--
Headphones3.5mmNo-
FMNoNoNo
Number of SIMs211
Wi-Fi Direct-NoNo
Mobile High-Definition Link (MHL)-NoNo
Lightning--Yes
sim 1
SIM TypeNano-SIMNano-SIMNano-SIM
GSM/CDMAGSMGSMGSM
3GYesYesYes
4G/ LTEYesYesYes
sim 2
SIM TypeNano-SIM--
GSM/CDMAGSM--
3GYes--
4G/ LTEYes--
sensors
Fingerprint sensorYes-Yes
Compass/ MagnetometerYesYesYes
Proximity sensorYesYesYes
AccelerometerYesYesYes
Ambient light sensorYesYesYes
GyroscopeYesYesYes
Barometer-YesYes
Temperature sensor-NoNo
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