Vivo Z3i vs Oppo A3s vs Vivo Z1i comparison

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key specs
Display6.30-inch6.20-inch6.26-inch
ProcessorMediaTek Helio P60 Qualcomm Snapdragon 450Qualcomm Snapdragon 636
Front Camera24-megapixel8-megapixel 16-megapixel
Rear Camera16-megapixel + 2-megapixel13-megapixel + 2-megapixel 13-megapixel + 2-megapixel
RAM6GB2GB4GB
Storage128GB16GB128GB
Battery Capacity3315mAh4230mAh3260mAh
OSAndroid 8.1 OreoAndroid 8.1 OreoAndroid 8.1
Resolution1080x2280 pixels720x1520 pixels1080x2280 pixels
general
BrandVivoOppoVivo
ModelZ3iA3sZ1i
Release dateOctober 1, 2018-July 1, 2018
Launched in IndiaYes--
Form factorTouchscreenTouchscreenTouchscreen
Dimensions (mm)155.97 x 75.63 x 8.10156.20 x 75.60 x 8.20154.81 x 75.03 x 7.89
Weight (g)163.70168.00149.30
Battery capacity (mAh)331542303260
ColoursAurora Blue and Millennium PowderRed, Dark PurpleBlack, Red
Body type--Plastic
display
Screen size (inches)6.306.206.26
TouchscreenYesYesYes
Resolution1080x2280 pixels720x1520 pixels1080x2280 pixels
Aspect ratio19:919:919:9
Pixels per inch (PPI)--403
hardware
Processor2.2GHz octa-core1.8GHz octa-core1.8GHz octa-core
Processor makeMediaTek Helio P60 (MT6771)Qualcomm Snapdragon 450Qualcomm Snapdragon 636
RAM6GB2GB4GB
Internal storage128GB16GB128GB
Expandable storageYesYesYes
Expandable storage typemicroSDmicroSDmicroSD
Expandable storage up to (GB)256256256
Dedicated microSD slotYes--
camera
Rear camera16-megapixel + 2-megapixel13-megapixel (f/2.2) + 2-megapixel (f/2.4)13-megapixel + 2-megapixel
Front camera24-megapixel8-megapixel (f/2.2)16-megapixel
Rear autofocus-YesPhase detection autofocus
Rear flash-LEDLED
software
Operating systemAndroid 8.1 OreoAndroid 8.1 OreoAndroid 8.1
SkinFuntouch OSColorOS 5.1Funtouch OS 4.0
connectivity
Wi-FiYesYesYes
Wi-Fi standards supported802.11 ac-802.11 a/b/g/n/ac
GPSYesYesYes
BluetoothYes, v 5.00Yes, v 4.20Yes, v 5.00
USB OTGYes-Yes
USB Type-CNo--
Number of SIMs2-2
Micro-USB-YesYes
Headphones-3.5mm3.5mm
Wi-Fi Direct-Yes-
FM--Yes
sim 1
GSM/CDMACDMA-GSM
3GYes-Yes
4G/ LTEYes-Yes
SIM Type--Nano-SIM
sim 2
GSM/CDMACDMA-GSM
SIM Type--Nano-SIM
3G--Yes
4G/ LTE--Yes
sensors
Face unlockYes--
Fingerprint sensorYes-Yes
Compass/ MagnetometerYesYesYes
Proximity sensorYesYesYes
AccelerometerYesYesYes
GyroscopeYes-Yes
Ambient light sensor--Yes

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