Oppo R17 vs Vivo X21i comparison

Compare Oppo R17
Compare Vivo X21i
key specs
Display6.40-inch6.28-inch
ProcessorQualcomm Snapdragon 670MediaTek Helio P60
Front Camera25-megapixel 24-megapixel
Rear Camera16-megapixel + 5-megapixel12-megapixel
RAM8GB4GB
Storage128GB64GB
Battery Capacity3500mAh3245mAh
OSAndroid 8.1Android 8.1
Resolution1080x2280 pixels1080x2280 pixels
general
BrandOppoVivo
ModelR17X21i
Release dateAugust 1, 2018May 1, 2018
Form factorTouchscreenTouchscreen
Battery capacity (mAh)35003245
Fast chargingVOOC-
ColoursStreamer Blue, Neon PurpleAurora White, Polar Night, Ruby Red
Dimensions (mm)-154.37 x 74.98 x 6.99
Weight (g)-159.00
display
Screen size (inches)6.406.28
TouchscreenYesYes
Resolution1080x2280 pixels1080x2280 pixels
Aspect ratio19:9-
Pixels per inch (PPI)374-
hardware
Processorocta-core (2x2GHz + 6x1.7GHz)2GHz octa-core
Processor makeQualcomm Snapdragon 670MediaTek Helio P60 (MT6771)
RAM8GB4GB
Internal storage128GB64GB
Expandable storageNoYes
Expandable storage type-microSD
Expandable storage up to (GB)-256
camera
Rear camera16-megapixel (f/1.8, 1.22-micron) + 5-megapixel12-megapixel
Rear autofocusPhase detection autofocus-
Rear flashDual LEDDual LED
Front camera25-megapixel (f/2.0)24-megapixel
software
Operating systemAndroid 8.1Android 8.1
SkinColorOS 5.2Funtouch OS 4
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYes, v 5.00Yes
Micro-USBYes-
Headphones3.5mm-
Wi-Fi DirectYes-
Wi-Fi standards supported-802.11 b/g/n
USB OTG-Yes
FM-Yes
Number of SIMs-2
sensors
Fingerprint sensorYes-
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
sim 1
SIM Type-Nano-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-Yes
sim 2
SIM Type-Nano-SIM
GSM/CDMA-GSM
3G-Yes
4G/ LTE-Yes
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