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Oppo R17 vs Vivo X21i vs Vivo X21 vs Vivo X20 comparison

 Compare Oppo R17
Oppo R17
Compare Vivo X21i
Vivo X21i
Compare Vivo X21
Vivo X21
Compare Vivo X20
Vivo X20
key specs
Display6.40-inch6.28-inch6.28-inch6.01-inch
ProcessorQualcomm Snapdragon 670MediaTek Helio P60 Qualcomm Snapdragon 660Qualcomm Snapdragon 660
Front Camera25-megapixel 24-megapixel12-megapixel 12-megapixel
Rear Camera16-megapixel + 5-megapixel12-megapixel12-megapixel + 5-megapixel 12-megapixel
RAM8GB4GB6GB4GB
Storage128GB64GB128GB64GB
Battery Capacity3500mAh3245mAh3200mAh3245mAh
OSAndroid 8.1Android 8.1Android 8.1Android 7.1.1
Resolution1080x2280 pixels1080x2280 pixels1080x2280 pixels1080x2160 pixels
general
BrandOppoVivoVivoVivo
ModelR17X21iX21X20
Release dateAugust 1, 2018May 1, 2018March 1, 2018September 1, 2017
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Battery capacity (mAh)3500324532003245
Fast chargingVOOC-Proprietary-
ColoursStreamer Blue, Neon PurpleAurora White, Polar Night, Ruby RedBlack, GoldMatte Black, Gold, Rose Gold
Dimensions (mm)-154.37 x 74.98 x 6.99154.50 x 74.80 x 7.40155.85 x 75.15 x 7.20
Weight (g)-159.00156.20159.00
Launched in India--Yes-
Removable battery--NoNo
display
Screen size (inches)6.406.286.286.01
TouchscreenYesYesYesYes
Resolution1080x2280 pixels1080x2280 pixels1080x2280 pixels1080x2160 pixels
Aspect ratio19:9-19:9-
Pixels per inch (PPI)374---
hardware
Processorocta-core (2x2GHz + 6x1.7GHz)2GHz octa-core2.2GHz octa-core1.8GHz octa-core
Processor makeQualcomm Snapdragon 670MediaTek Helio P60 (MT6771)Qualcomm Snapdragon 660Qualcomm Snapdragon 660
RAM8GB4GB6GB4GB
Internal storage128GB64GB128GB64GB
Expandable storageNoYesYesYes
Expandable storage type-microSDmicroSDmicroSD
Expandable storage up to (GB)-256256256
camera
Rear camera16-megapixel (f/1.8, 1.22-micron) + 5-megapixel12-megapixel12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4)12-megapixel
Rear autofocusPhase detection autofocus-Phase detection autofocus-
Rear flashDual LEDDual LEDLEDYes
Front camera25-megapixel (f/2.0)24-megapixel12-megapixel (f/2.0)12-megapixel
software
Operating systemAndroid 8.1Android 8.1Android 8.1Android 7.1.1
SkinColorOS 5.2Funtouch OS 4FunTouch 4.0FunTouch OS
connectivity
Wi-FiYesYesYesYes
GPSYesYesYesYes
BluetoothYes, v 5.00YesYes, v 5.00Yes, v 5.00
Micro-USBYes-Yes-
Headphones3.5mm-3.5mm3.5mm
Wi-Fi DirectYes--No
Wi-Fi standards supported-802.11 b/g/n802.11 a/b/g/n/ac-
USB OTG-YesYesYes
FM-YesNoNo
Number of SIMs-222
NFC--NoNo
Infrared--NoNo
Mobile High-Definition Link (MHL)---No
sensors
Fingerprint sensorYes-Yes-
Proximity sensorYesYesYesYes
AccelerometerYesYesYesYes
Ambient light sensorYesYesYesYes
GyroscopeYesYesYesYes
Compass/ Magnetometer--YesYes
Barometer---No
Temperature sensor---No
sim 1
SIM Type-Nano-SIMNano-SIM-
GSM/CDMA-GSMGSMGSM
3G-YesYesYes
4G/ LTE-YesYesYes
sim 2
SIM Type-Nano-SIMNano-SIM-
GSM/CDMA-GSMGSMGSM
3G-YesYesYes
4G/ LTE-YesYesYes
ratings
Overall NDTV Rating--Read Review-
Design Rating---
Display Rating---
Software Rating---
Performance Rating---
Battery Life Rating---
Camera Rating---
Value for Money Rating---

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