Oppo A31 (2020) vs Adcom A-400i comparison

Show Only Differences Highlight Differences	Oppo A31 (2020)	Adcom A-400i
key specs
Display	6.50-inch	4.00-inch
Processor	MediaTek Helio P35	1GHz one-core
Front Camera	8-megapixel	0.3-megapixel
Rear Camera	12-megapixel + 2-megapixel + 2-megapixel	2-megapixel
RAM	4GB	256MB
Storage	64GB	512MB
Battery Capacity	4230mAh	1200mAh
OS	Android 9	Android 4.0
Resolution	720x1600 pixels	320x480 pixels
general
Brand	Oppo	Adcom
Model	A31 (2020)	A-400i
Release date	February 14, 2020	October 1, 2013
Launched in India	Yes	-
Form factor	Touchscreen	Touchscreen
Body type	Plastic	-
Dimensions (mm)	163.90 x 75.50 x 8.30	-
Weight (g)	180.00	-
Battery capacity (mAh)	4230	1200
Removable battery	No	Yes
Colours	Mystery Black, Fantasy White	-
display
Screen size (inches)	6.50	4.00
Touchscreen	Yes	Yes
Resolution	720x1600 pixels	320x480 pixels
Aspect ratio	20:9	-
hardware
Processor	2.3GHz octa-core	1GHz one-core
Processor make	MediaTek Helio P35 (MT6765)	-
RAM	4GB	256MB
Internal storage	64GB	512MB
Expandable storage	Yes	Yes
Expandable storage type	microSD	microSD
Expandable storage up to (GB)	256	32
Dedicated microSD slot	Yes	-
camera
Rear camera	12-megapixel (f/1.8) + 2-megapixel (f/2.4, 1.75-micron) + 2-megapixel (f/2.4, 1.75-micron)	2-megapixel
Rear autofocus	Yes	-
Rear flash	Yes	-
Front camera	8-megapixel (f/2.0)	0.3-megapixel
Pop-Up Camera	No	-
Front autofocus	No	-
Front flash	No	-
software
Operating system	Android 9	Android 4.0
Skin	ColorOS 6.1.2	-
connectivity
Wi-Fi	Yes	Yes
Wi-Fi standards supported	802.11 a/b/g/n/ac	802.11 b/g
GPS	Yes	No
Bluetooth	Yes, v 5.00	Yes, v 2.10
NFC	No	No
Micro-USB	Yes	-
Headphones	3.5mm	3.5mm
FM	Yes	Yes
Number of SIMs	2	2
Infrared	-	No
USB OTG	-	No
Wi-Fi Direct	-	No
Mobile High-Definition Link (MHL)	-	No
sim 1
SIM Type	Nano-SIM	Regular
GSM/CDMA	GSM	GSM
3G	Yes	No
4G/ LTE	Yes	No
sim 2
SIM Type	Nano-SIM	Regular
GSM/CDMA	GSM	GSM
3G	Yes	No
4G/ LTE	Yes	No
sensors
Face unlock	Yes	-
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	No
Proximity sensor	Yes	No
Accelerometer	Yes	No
Ambient light sensor	Yes	No
Gyroscope	-	No
Barometer	-	No
Temperature sensor	-	No