Vivo Z3i vs Vivo X23 vs Oppo R17 comparison

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key specs
Display6.30-inch6.41-inch6.40-inch-
Processor2.2GHz octa-core2GHz octa-coreocta-core -
Front Camera24-megapixel12-megapixel 25-megapixel -
Resolution1080x2280 pixels1080x2340 pixels1080x2280 pixels-
RAM6GB8GB8GB-
OSAndroid 8.1 OreoAndroid 8.1 OreoAndroid 8.1-
Storage128GB128GB128GB-
Rear Camera16-megapixel + 2-megapixel12-megapixel + 13-megapixel 16-megapixel + 5-megapixel-
Battery Capacity3315mAh3400mAh3500mAh-
general
Release dateOctober 2018September 2018August 2018-
Launched in IndiaYesNo--
Form factorTouchscreenTouchscreenTouchscreen-
Dimensions (mm)155.97 x 75.63 x 8.10157.68 x 74.06 x 7.47--
Weight (g)163.70160.50--
Battery capacity (mAh)331534003500-
ColoursAurora Blue and Millennium PowderFashion Orange, Fashion Purple, Midnight Blue, Phantom Purple, Phantom RedStreamer Blue, Neon Purple-
Body type-Glass--
Fast charging--VOOC-
display
Screen size (inches)6.306.416.40-
TouchscreenYesYesYes-
Resolution1080x2280 pixels1080x2340 pixels1080x2280 pixels-
Aspect ratio19:9-19:9-
Pixels per inch (PPI)--374-
hardware
Processor2.2GHz octa-core2GHz octa-coreocta-core (2x2GHz + 6x1.7GHz)-
Processor makeMediaTek Helio P60Snapdragon 670Qualcomm Snapdragon 670-
RAM6GB8GB8GB-
Internal storage128GB128GB128GB-
Expandable storageYes-No-
Expandable storage typemicroSD---
Expandable storage up to (GB)256---
Dedicated microSD slotYes---
camera
Rear camera16-megapixel + 2-megapixel12-megapixel (f/1.8) + 13-megapixel (f/2.4)16-megapixel (f/1.8, 1.22-micron) + 5-megapixel-
Front camera24-megapixel12-megapixel (f/2.0)25-megapixel (f/2.0)-
Rear autofocus--Phase detection autofocus-
Rear flash--Dual LED-
software
Operating systemAndroid 8.1 OreoAndroid 8.1 OreoAndroid 8.1-
SkinFuntouch OSFuntouch OS 4.5ColorOS 5.2-
connectivity
Wi-FiYesYesYes-
Wi-Fi standards supported802.11 ac---
GPSYesYesYes-
BluetoothYes, v 5.00Yes, v 4.00Yes, v 5.00-
USB OTGYesYes--
USB Type-CNo---
Number of SIMs22--
Micro-USB--Yes-
Headphones--3.5mm-
sim 1
GSM/CDMACDMAGSM--
3GYes---
4G/ LTEYesYes--
sim 2
GSM/CDMACDMAGSM--
4G/ LTE-Yes--
sensors
Face unlockYesYes--
Fingerprint sensorYesYesYes-
Compass/ MagnetometerYesYes--
Proximity sensorYesYesYes-
AccelerometerYesYesYes-
GyroscopeYes-Yes-
Ambient light sensor-YesYes-