Lava Z40 vs Panasonic T21 comparison

Compare Lava Z40
Compare Panasonic T21
key specs
Display4.00-inch4.50-inch
Processor1.4GHz quad-coreBroadcom BCM28145
Front Camera2-megapixel2-megapixel
Rear Camera2-megapixel8-megapixel
RAM1GB1GB
Storage8GB4GB
Battery Capacity2250mAh1700mAh
OSAndroid 8.1 Oreo (Go edition)Android 4.1
Resolution400x800 pixels720x1280 pixels
general
BrandLavaPanasonic
ModelZ40T21
Release dateMarch 1, 2019September 1, 2013
Launched in IndiaYes-
Form factorTouchscreenTouchscreen
Dimensions (mm)125.50 x 63.90 x 11.65132.00 x 66.00 x 9.80
Weight (g)120.00140.00
Battery capacity (mAh)22501700
ColoursBlack, Gold-
Removable battery-No
display
Screen size (inches)4.004.50
TouchscreenYesYes
Resolution400x800 pixels720x1280 pixels
Protection typeGorilla Glass-
Aspect ratio16:9-
Pixels per inch (PPI)223326
hardware
Processor1.4GHz quad-core1.2GHz dual-core
RAM1GB1GB
Internal storage8GB4GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)6432
Processor make-Broadcom BCM28145
camera
Rear camera2-megapixel8-megapixel
Rear flashYesLED
Front camera2-megapixel2-megapixel
Front flashYes-
software
Operating systemAndroid 8.1 Oreo (Go edition)Android 4.1
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 b/g/n802.11 b/g/n
GPSYesYes
BluetoothYes, v 4.20Yes, v 2.10
Micro-USBYes-
Headphones3.5mm3.5mm
Number of SIMs22
NFC-No
Infrared-No
USB OTG-No
FM-Yes
Wi-Fi Direct-No
Mobile High-Definition Link (MHL)-No
sim 1
SIM TypeNano-SIMRegular
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesNo
sim 2
SIM TypeNano-SIMRegular
GSM/CDMAGSMGSM
3GYesNo
4G/ LTEYesNo
sensors
AccelerometerYesYes
Compass/ Magnetometer-Yes
Proximity sensor-Yes
Ambient light sensor-Yes
Gyroscope-No
Barometer-No
Temperature sensor-No

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