Redmi A7 4G vs Lava Z81 comparison

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Compare Lava Z81
key specs
Display6.88-inch5.70-inch
ProcessorUnisoc T7250MediaTek Helio A22
Front Camera8-megapixel13-megapixel
Rear Camera13-megapixel13-megapixel
RAM4GB2GB
Storage64GB32GB
Battery Capacity5200mAh3000mAh
OSAndroid 16Android 8.1 Oreo
Resolution720x1640 pixels720x1440 pixels
general
BrandRedmiLava
ModelA7 4GZ81
Release dateApril 21, 2026November 1, 2018
AI EnabledNo-
Launched in IndiaYesYes
Form factorTouchscreenTouchscreen
Dimensions (mm)171.79 x 79.77 x 8.26152.20 x 73.00 x 7.90
Weight (g)193.00141.60
IP ratingIP52-
Battery capacity (mAh)52003000
Removable batteryNo-
Fast charging15W Fast Charging-
Wireless chargingNo-
ColoursBlack, Sky BlueBlack and Gold
display
Refresh Rate120 Hz-
Resolution StandardHD+-
Screen size (inches)6.885.70
TouchscreenYesYes
Resolution720x1640 pixels720x1440 pixels
Protection type-Gorilla Glass
Aspect ratio-18:9
Pixels per inch (PPI)-282
hardware
Processor1.8GHz octa-core2GHz quad-core
Processor makeUnisoc T7250MediaTek Helio A22 (MT6761)
RAM4GB2GB
Internal storage64GB32GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)2048128
Dedicated microSD slotYes-
camera
Rear camera13-megapixel13-megapixel
No. of Rear Cameras1-
Front camera8-megapixel13-megapixel
No. of Front Cameras1-
software
Operating systemAndroid 16Android 8.1 Oreo
SkinHyperOS 3Star OS 5.0
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 ac802.11 b/g/n
GPSYesYes
BluetoothYes, v 5.20Yes, v 4.10
USB Type-CYes-
Number of SIMs22
Active 4G on both SIM cardsYesYes
Micro-USB-Yes
FM-Yes
sim 1
SIM TypeNano-SIMNano-SIM
3GYesYes
4G/ LTEYesYes
GSM/CDMA-GSM
sim 2
SIM TypeNano-SIMNano-SIM
3GYesYes
4G/ LTEYesYes
GSM/CDMA-GSM
sensors
Fingerprint sensorYesYes
Compass/ MagnetometerYesNo
AccelerometerYesYes
Ambient light sensorYesYes
Face unlock-Yes
Proximity sensor-Yes

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