Product
Oppo A31
Oppo A31
₹6,669
Samsung Z2
Samsung Z2
₹4,790
Battery
Music play - Up to 30 h
Talk time - Up to 8 h (3G)
Type Li-Po 4230 mAh Li-Ion 1500 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) 121.5 x 63 x 10.8 mm (4.78 x 2.48 x 0.43 in)
SIM Nano-SIM + Nano-SIM Dual SIM (Micro-SIM, dual stand-by)
Weight 180 g (6.35 oz) 127 g (4.48 oz)
Comms
Bluetooth 5.0, A2DP, LE 4.0, A2DP
NFC No No
Positioning GPS, GLONASS, BDS GPS, GLONASS
Radio FM radio FM radio
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, hotspot
Display
Protection Corning Gorilla Glass 3 -
Resolution 720 x 1600 pixels, 20:9 ratio (~270 ppi density) 480 x 800 pixels, 5:3 ratio (~233 ppi density)
Size 6.5 inches, 102.0 cm2 (~82.4% screen-to-body ratio) 4.0 inches, 45.5 cm2 (~59.5% screen-to-body ratio)
Type IPS LCD, 480 nits (typ) TFT, 256K colors
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Accelerometer
Launch
Announced 2020, February 13 2016, August. Released 2016, August
Status Available. Released 2020, February 14 Discontinued
Main Camera
Features LED flash, HDR, panorama LED flash
Single - 5 MP, f/2.2
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 720p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM 8GB 1GB RAM
  eMMC 5.1 -
Misc
Colors Fantasy White, Mystery Black, Lake Green Gold, Black, Red
Models CPH2015, CPH2073, CPH2081, CPH2029, CPH2031 SM-Z200F/DD, SM-Z200F, SM-Z200Y
SAR - 0.81 W/kg (head)    
SAR EU - 0.58 W/kg (head)     1.30 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 900 / 1800 - SIM 1 & SIM 2
3G bands HSDPA 850 / 900 / 2100 - International HSDPA 900 / 2100
4G bands 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - International 1, 3, 5, 8, 40
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) Spreadtrum SC9830
CPU Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) Quad-core 1.5 GHz Cortex-A7
GPU PowerVR GE8320 Mali-400MP2
OS Android 9.0 (Pie), ColorOS 6.1 Tizen 2.4
Selfie camera
Features HDR -
Single 8 MP, f/2.0, (wide), 1/4.0", 1.12µm VGA, f/2.4
Video 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes
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