Technology	GSM / HSPA / LTE
Announced	2020, February 13
Status	Available. Released 2020, February 14
Dimensions	163.9 x 75.5 x 8.3 mm (6.45 x 2.97 x 0.33 in)
Weight	180 g (6.35 oz)
Build	Glass front (Gorilla Glass 3), plastic back, plastic frame
SIM	Nano-SIM + Nano-SIM
Type	IPS LCD, 480 nits (typ)
Size	6.5 inches, 102.0 cm2 (~82.4% screen-to-body ratio)
Resolution	720 x 1600 pixels, 20:9 ratio (~270 ppi density)
Protection	Corning Gorilla Glass 3
OS	Android 9.0 (Pie), ColorOS 6.1
Chipset	Mediatek MT6765V/CB Helio P35 (12 nm)
CPU	Octa-core (4×2.3 GHz Cortex-A53 & 4×1.8 GHz Cortex-A53)
GPU	PowerVR GE8320
Card slot	microSDXC (dedicated slot)
Internal	64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
	eMMC 5.1
Triple	12 MP, f/1.8, (wide), 1/2.86″, 1.25µm, PDAF
	2 MP, f/2.4, (macro)
	2 MP, f/2.4, (depth)
Features	LED flash, HDR, panorama
Video	1080p@30fps
Single	8 MP, f/2.0, (wide), 1/4.0″, 1.12µm
Features	HDR
Video	1080p@30fps
Loudspeaker	Yes
3.5mm jack	Yes
WLAN	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth	5.0, A2DP, LE
Positioning	GPS, GLONASS, BDS
NFC	No
Radio	FM radio
USB	microUSB 2.0, OTG
Sensors	Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Type	Li-Po 4230 mAh
Colors	Fantasy White, Mystery Black, Lake Green
Models	CPH2015, CPH2073, CPH2081, CPH2029, CPH2031

OPPO A31