Oppo A31 vs Samsung Galaxy M21
General Info
| Manufacturer | |
| Oppo | Samsung |
| Announced | |
| February 2020 | 2020, March 18 |
| Status | |
| Available - February 2020 | Coming soon. Exp. release 2020, March 23 |
| Price | |
| Rs. 11,490 ($0.00) [Similarly Priced] | Rs. 12,999 ($0.00) [Similarly Priced] |
| Colors | |
| Fantasy White, Mystery Black | Midnight Blue, Raven Black |
| Form Factor | |
| Candybar | Candybar |
| Dimension | |
|
163.9 x 75.5 x 8.3 mm (6.45 x 2.97 x 0.33 in) |
159 x 75.1 x 8.9 mm (6.26 x 2.96 x 0.35 in) |
| Weight | |
| 180 g (6.35 oz) | 188 g (6.63 oz) |
| SIM Type | |
| Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | |
| GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | |
| HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | |
| LTE (unspecified) | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) |
| Messaging | |
| Build Features | |
| - Fingerprint Sensor |
- Fingerprint Sensor |
Display
| Type | |
| IPS LCD Capacitive Touchscreen | Super AMOLED Capacitive Touchscreen Corning Gorilla Glass 3 420 nits max brightness (advertised) |
| Colors | |
| 16M colors | 16M colors |
| Size | |
| 6.5 inches [Similar] | 6.4 inches [Similar] |
| Resolution | |
| 720 x 1600 pixels (270 ppi) | 1080 x 2340 pixels (403 ppi) |
| Screen-to-Body Ratio | 82.39% | 84.07% |
| Multi-Touch | |
Hardware and OS
| OS | |
| Android 9.0 (Pie) | Android 10.0 |
| User Interface | |
| ColorOS 6.1 | One UI 2.0 |
| Processor | |
| Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53), Mediatek MT6765V/CB Helio P35 (12nm) [Similar] | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) [Similar] |
| GPU | |
| PowerVR GE8320 [Similar] | Mali-G72 MP3 [Similar] |
| RAM | |
| 4 GB [Browse Similar] | 6 GB [Browse Similar] |
| Internal Memory | |
| 128 GB | 128 GB |
| External Memory | |
| microSDXC (dedicated slot) | microSDXC (dedicated slot) |
Camera
| Rear Camera | |
| 12 MP + 2 MP + 2 MP [Similar] | 48 MP + 8 MP + 5 MP [Similar] |
| Flash | |
| LED Flash | LED Flash |
| Features | |
| 12 MP, f/1.8, (wide), PDAF 2 MP, f/2.4, 27mm (macro), 1/5.0", 1.75µm 2 MP, f/2.4, (depth) HDR, Panorama |
48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm 5 MP, f/2.2, (depth) Panorama, HDR |
| Video | |
| 1080p@30fps | 2160p@30fps, 1080p@30fps, gyro-EIS |
| Front Camera | |
| 8 MP, f/2.0, HDR, 1080p@30fps [Similar] |
20 MP, f/2.0, (wide), 1/2.8", 1.0μm HDR 1080p@30fps [Similar] |
Multimedia
| 3.5mm Jack | |
| Radio | |
| FM radio | FM radio, RDS, recording |
| Games | |
| Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
Connectivity and Data Rate
| GPRS | |
| Yes | Yes |
| Edge | |
| Yes | Yes |
| 3G | |
| HSPA 42.2/5.76 Mbps, LTE-A | HSPA, LTE-A |
| Bluetooth | |
| 5.0, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | |
| Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | |
| microUSB 2.0, USB On-The-Go | 2.0, Type-C 1.0 reversible connector |
| GPS | |
| Yes, with A-GPS, BDS | Yes, with A-GPS, GLONASS, BDS |
| Browser | |
| Yes | Yes |
User Memory
| Internal | |
| 128 GB, 4 GB RAM | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) |
| Expandable Storage | |
| microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| USB OTG | |
| Supported | Supported |
Sensors
| Fingerprint | |
| Proximity Sensor | |
| Accelerometer Sensor | |
| Magnetic-field Sensor (Compass) | |
| Gyroscope Sensor | |
| NFC | |
Battery
| Type | |
| Non-removable Li-Po Battery | Non-removable Li-Po Battery Fast battery charging 15W |
| Capacity | |
| 4230 mAh | 6000 mAh |
| Stand by | |
| - | - |
| Talk Time | |
| - | - |