Product
Oppo A31
Oppo A31
₹6,669
Samsung Galaxy M02
Samsung Galaxy M02
₹7,999
Battery
Type Li-Po 4230 mAh Li-Po 5000 mAh
Body
Build Glass front (Gorilla Glass 3), plastic back, plastic frame Glass front, plastic back, plastic frame
Dimensions 163.9 x 75.5 x 8.3 mm (6.45 x 2.97 x 0.33 in) 164 x 75.9 x 9.1 mm (6.46 x 2.99 x 0.36 in)
SIM Nano-SIM + Nano-SIM Nano-SIMNano-SIM + Nano-SIM
Weight 180 g (6.35 oz) 206 g (7.27 oz)
Comms
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS
Radio FM radio Unspecified
USB microUSB 2.0, OTG microUSB 2.0
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Display
Protection Corning Gorilla Glass 3 -
Resolution 720 x 1600 pixels, 20:9 ratio (~270 ppi density) 720 x 1600 pixels, 20:9 ratio (~270 ppi density)
Size 6.5 inches, 102.0 cm2 (~82.4% screen-to-body ratio) 6.5 inches, 102.0 cm2 (~81.9% screen-to-body ratio)
Type IPS LCD, 480 nits (typ) PLS LCD
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Accelerometer
  - Virtual proximity sensing
Launch
Announced 2020, February 13 2021, February 02
Status Available. Released 2020, February 14 Available. Released 2021, February 09
Main Camera
Dual - 13 MP, f/1.9, (wide), AF2 MP, f/2.4, (macro)
Features LED flash, HDR, panorama LED flash
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) -
Video 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM 32GB 2GB RAM, 32GB 3GB RAM
  eMMC 5.1 eMMC 5.1
Misc
Colors Fantasy White, Mystery Black, Lake Green Black, Gray, Blue, Red
Models CPH2015, CPH2073, CPH2081, CPH2029, CPH2031 SM-M022F, SM-M022F/DS, SM-M022G, SM-M022G/DS
SAR EU - 0.65 W/kg (head)     1.71 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 - International HSDPA 850 / 900 / 2100
4G bands 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - International 1, 3, 5, 7, 8, 20, 28, 38, 40, 41
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Technology GSM / HSPA / LTE GSM / HSPA / LTE
  1, 3, 5, 7, 8, 38, 40, 41 - Asia -
Platform
Chipset Mediatek MT6765V/CB Helio P35 (12 nm) Mediatek MT6739W (28 nm)
CPU Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) Quad-core 1.5 GHz Cortex-A53
GPU PowerVR GE8320 PowerVR GE8100
OS Android 9.0 (Pie), ColorOS 6.1 Android 10, One UI 2.0
Selfie camera
Features HDR -
Single 8 MP, f/2.0, (wide), 1/4.0", 1.12µm 5 MP, f/2.0
Video 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
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