Vivo Y31 5G vs HMD Key comparison

Show Only Differences Highlight Differences	Vivo Y31 5G	HMD Key
key specs
Display	6.68-inch	6.52-inch
Processor	Qualcomm Snapdragon 4 Gen 2	-
Front Camera	8-megapixel	Unspecified
Rear Camera	50-megapixel + 0.08-megapixel	8-megapixel
RAM	4GB, 6GB	2GB
Storage	128GB	32GB
Battery Capacity	6,500mAh	4000mAh
OS	Android 15	Android 14 GO
Resolution	1,608x720 pixels	576x1280 pixels
general
Brand	Vivo	HMD
Model	Y31 5G	Key
Release date	September 15, 2025	January 2, 2025
Launched in India	Yes	No
Form factor	Touchscreen	Touchscreen
Body type	Plastic	-
Dimensions (mm)	166.14 x 77.01 x 8.39	166.40 x 76.90 x 8.95
Weight (g)	209.00	185.40
IP rating	IP68	IP52
Battery capacity (mAh)	6,500	4000
Removable battery	No	-
Fast charging	44W Flash Charge	-
Wireless charging	No	-
Colours	Rose Red and Diamond Green	Icy Blue, Midnight Black
display
Refresh Rate	120 Hz	60 Hz
Screen size (inches)	6.68	6.52
Touchscreen	Yes	Yes
Resolution	1,608x720 pixels	576x1280 pixels
Pixels per inch (PPI)	264	-
Aspect ratio	-	20:9
hardware
Processor	2.2GHz MHz octa-core	-
Processor make	Qualcomm Snapdragon 4 Gen 2	-
RAM	4GB, 6GB	2GB
Internal storage	128GB	32GB
Expandable storage	Yes	Yes
Expandable storage type	microSD	microSD
Expandable storage up to (GB)	2TB	128
camera
Rear camera	50-megapixel (f/f/1.8) + 0.08-megapixel (f/f/3.0)	8-megapixel
No. of Rear Cameras	2	1
Rear flash	Yes	-
Front camera	8-megapixel (f/f/2.0)	Unspecified
No. of Front Cameras	1	1
Pop-Up Camera	No	-
software
Operating system	Android 15	Android 14 GO
Skin	Funtouch OS 15	-
connectivity
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Bluetooth	Yes, v 4.20	Yes, v 4.20
NFC	No	-
USB Type-C	Yes	Yes
Number of SIMs	2	1
Headphones	-	3.5mm
sim 1
SIM Type	Nano-SIM	-
GSM/CDMA	GSM	-
4G/ LTE	Yes	-
5G	Yes	-
sim 2
SIM Type	Nano-SIM	-
GSM/CDMA	GSM	-
4G/ LTE	Yes	-
5G	Yes	-
sensors
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	-
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
Gyroscope	No	-
Barometer	No	-
Temperature sensor	No	-

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