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a31
k15
Display
Type
IPS_LCD
AMOLED
Size
6.5"
6.59"
Resolution
HD+
QHD+
Refresh Rate
—
120Hz
Brightness
480 nits
1200 nits
Protection
Corning Gorilla Glass 3
—
Platform
OS
ANDROID Android 9.0 (Pie), ColorOS 6.1
ANDROID Android 16, ColorOS 16
Chipset
Mediatek MT6765V/CB Helio P35
Mediatek Dimensity 7360 Super
CPU
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU
PowerVR GE8320
Mali-G615 MC2
AnTuTu Score
—
—
Memory
RAM
4GB / 6GB
12GB
Storage
64GB / 128GB
256GB
Storage Type
eMMC 5.1
UFS 3.1
Card Slot
Yes
No
Camera
Main Camera
12MP f/1.8
50MP f/1.8
Selfie Camera
8MP f/2.0
50MP f/2.0
Video (Max)
1080p@30fps
4K@30fps, 1080p@30/60/120fps, gyro-EIS
OIS
No
Yes
Battery
Capacity
4,230 mAh
8,000 mAh
Wired Charging
—
80W
Wireless Charging
—
—
Fast Charging
—
—
Connectivity
Wi-Fi
Wi-Fi 5, Wi-Fi 4, Dual-band
Wi-Fi 6, Wi-Fi 5, Wi-Fi 4, Dual-band
Bluetooth
5.0
5.4
NFC
No
Yes
5G
No
Yes
USB
microUSB 2.0
USB Type-C 2.0
GPS
GPS, GLONASS, BeiDou
GPS, GLONASS, BeiDou, Galileo, QZSS, NavIC
Body
Dimensions
163.9 x 75.5 x 8.3 mm (6.45 x 2.97 x 0.33 in)
158.3 x 75.1 x 8.3 mm (6.23 x 2.96 x 0.33 in)
Weight
180g
205g
Build
Glass (Gorilla Glass 3) / plastic back / plastic frame
Glass / aluminum frame
Water Resist
—
IP68
Colors
Fantasy White, Mystery Black, Lake Green
Gray, Silver