Mobiistar X1 Notch vs Vivo Y71i vs Oppo A3s vs Vivo Y81 comparison

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key specs
Display5.60-inch6.00-inch6.20-inch6.22-inch
Front Camera13-megapixel5-megapixel 8-megapixel 5-megapixel
RAM2GB2GB2GB3GB
OSAndroidAndroid 8.1 OreoAndroid 8.1 OreoAndroid 8.1
Storage16GB16GB16GB32GB
Rear Camera13-megapixel8-megapixel 13-megapixel + 2-megapixel 13-megapixel
Battery Capacity3020mAh3285mAh4230mAh3260mAh
Processor-1.4GHz quad-core1.8GHz octa-core2GHz octa-core
Resolution-720x1440 pixels720x1520 pixels720x1520 pixels
general
Release dateJanuary 2019July 2018-June 2018
Launched in IndiaYesYes-Yes
Battery capacity (mAh)3020328542303260
ColoursGradient Shine, Midnight Black and Sapphire Blue-Red, Dark PurpleBlack
Form factor-TouchscreenTouchscreenTouchscreen
Dimensions (mm)-155.87 x 75.74 x 7.80156.20 x 75.60 x 8.20155.06 x 75.00 x 7.77
Weight (g)-150.00168.00146.50
Body type---Plastic
display
Screen size (inches)5.606.006.206.22
Touchscreen-YesYesYes
Resolution-720x1440 pixels720x1520 pixels720x1520 pixels
Aspect ratio-18:919:919:9
Pixels per inch (PPI)-269-270
hardware
RAM2GB2GB2GB3GB
Internal storage16GB16GB16GB32GB
Processor-1.4GHz quad-core1.8GHz octa-core2GHz octa-core
Processor make-Qualcomm Snapdragon 425Snapdragon 450MediaTek MT6762
Expandable storage-YesYesYes
Expandable storage type-microSDmicroSDmicroSD
Expandable storage up to (GB)-256256256
camera
Rear camera13-megapixel8-megapixel (f/1.0)13-megapixel (f/2.2) + 2-megapixel (f/2.4)13-megapixel (f/2.2)
Front camera13-megapixel5-megapixel (f/2.2)8-megapixel (f/2.2)5-megapixel (f/2.2)
Rear autofocus--YesPhase detection autofocus
Rear flash--LEDLED
software
Operating systemAndroidAndroid 8.1 OreoAndroid 8.1 OreoAndroid 8.1
Skin-FunTouch OSColorOS 5.1FunTouch OS 4.0
connectivity
Wi-FiYes-YesYes
BluetoothYesYes, v 4.20Yes, v 4.20Yes, v 5.00
USB OTG-No--
GPS--YesYes
Micro-USB--YesYes
Headphones--3.5mm3.5mm
Wi-Fi standards supported---802.11 b/g/n
Number of SIMs---2
sensors
Proximity sensor-YesYesYes
Accelerometer-YesYesYes
Ambient light sensor-Yes--
Compass/ Magnetometer--YesYes
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