| Product |
Oppo A31
|
Samsung Z2
|
| 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 |
