Product
Oppo A31
Oppo A31
₹6,669
Samsung Galaxy J2 Core (2020)
Samsung Galaxy J2 Core (2020)
₹6,999
Battery
Type Li-Po 4230 mAh Li-Ion 2600 mAh, removable
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) 143.4 x 72.1 x 8.9 mm (5.65 x 2.84 x 0.35 in)
SIM Nano-SIM + Nano-SIM Dual SIM (Micro-SIM, dual stand-by)
Weight 180 g (6.35 oz) 154 g (5.43 oz)
Comms
Bluetooth 5.0, A2DP, LE 4.2, A2DP
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS, BDS
Radio FM radio FM radio
USB microUSB 2.0, OTG microUSB 2.0, OTG
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) 540 x 960 pixels, 16:9 ratio (~220 ppi density)
Size 6.5 inches, 102.0 cm2 (~82.4% screen-to-body ratio) 5.0 inches, 68.9 cm2 (~66.7% screen-to-body ratio)
Type IPS LCD, 480 nits (typ) PLS LCD
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Accelerometer, proximity
Launch
Announced 2020, February 13 2020, April 27
Status Available. Released 2020, February 14 Available. Released 2020, April 27
Main Camera
Features LED flash, HDR, panorama LED flash, HDR, panorama
Single - 8 MP, f/2.2, AF
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 16GB 1GB RAM
  eMMC 5.1 eMMC 5.0
Misc
Colors Fantasy White, Mystery Black, Lake Green Black, Gold, Blue
Models CPH2015, CPH2073, CPH2081, CPH2029, CPH2031 SM-J260GU, SM-J260GU/DS, SM-J260FU, SM-J260MU
SAR - 0.99 W/kg (head)    
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, 8, 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) Qualcomm MSM8917 Snapdragon 425 (28 nm)
CPU Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) Quad-core 1.4 GHz Cortex-A53
GPU PowerVR GE8320 Adreno 308
OS Android 9.0 (Pie), ColorOS 6.1 Android 8.1 Oreo (Go edition)
Selfie camera
Features HDR -
Single 8 MP, f/2.0, (wide), 1/4.0", 1.12µm 5 MP, f/2.2
Video 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
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