| UMIDIGI Bison 2 |
Oppo A3s |
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| Hardware and OS | UMIDIGI Bison 2 | Oppo A3s |
| Operating system | Android 12 Snow Cone | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Octa-Core (2x Cortex A75 2.2 GHz 6x Cortex A55 2.0 GHz) | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | MediaTek Helio P90 (MT6779) (10 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | IMG PowerVR GM9446 | Adreno 506 |
| Internal memory | 6GB 128GB, 6GB · 128GB 8GB · 256GB · Pro | 16 GB, 2 GB RAM |
| External memory | microSDXC (uses shared SIM slot) | microSD, up to 256 GB (dedicated slot) |
| Display | UMIDIGI Bison 2 | Oppo A3s |
| Type | LCD IPS | IPS LCD |
| Size | 6.3" inc | 6.2" inc |
| Resolution | 1080 x 2400 px | 720 x 1520 px |
| Touchscreen | capacitive touchscreen | capacitive touchscreen |
| Display colors | 16M | |
| Screen-to-Body Ratio | 81.2% | |
| Screen area | cm2 | |
| Display area | 95.9 cm2 | |
| Screen format | 20:9 (height:width) | |
| Display aspect ratio | 19:9 (height:width) | |
| Screen to body ratio | 66% | |
| Pixel Density | 271 PPI | |
| PPI /points per inch/ | 418 PPI | |
| Colors | 16M | |
| Screen protection | Corning Gorilla Glass 5 | |
| Connectivity | UMIDIGI Bison 2 | Oppo A3s |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| 4G Network | LTE | |
| NFC | Yes | |
| Wi-Fi | 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac,Dual band ,Wi-Fi Hotspot ,Wi-Fi Direct ,Wi-Fi Display | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| Network | 2G / 3G / 4G / | GSM / HSPA / LTE |
| SIM card | Dual SIM, dual stand-by (Nano SIM Nano SIM) | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth | Bluetooth 5.0, A2DP, LE | 4.2, A2DP, LE |
| Edge | Yes | Yes |
| GPRS | Yes | Yes |
| GPS | GPS, A-GPS, GLONASS, Beidou | Yes, with A-GPS |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps | |
| USB | Yes, USB Type C, USB On-The-Go (OTG) | microUSB 2.0, USB On-The-Go |
| Camera | UMIDIGI Bison 2 | Oppo A3s |
| Rear camera, main | 48 MP, Triple | |
| Camera specs | 48 MP, ?/ 2.2, (wide), -16 MP, ?/ 2.2, (ultrawide), -5 MP, (macro) | |
| Main camera | 13 MP, Dual | |
| Functions | LED flash | |
| Specs | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor | |
| Features | LED flash, HDR, panorama | |
| Front camera, selfie | 24 MP, Single | |
| Video | 1080p video | 1080p@30fps |
| Selfie camera | 8 MP, Single | |
| Multimedia | UMIDIGI Bison 2 | Oppo A3s |
| Headphone jack | No | |
| 3.5 mm Jack | Yes | |
| Radio | Yes | FM radio |
| Design | UMIDIGI Bison 2 | Oppo A3s |
| Dimensions (HxWxD) | 172.1 x83.8 x 12.9 mm | 6.78 x 3.3 x 0.51 in | |
| Colors | Black | Red, Dark Purple |
| Body build | Rugged Smartphone, Polycarbonate | |
| Dimensions | 156.2 x 75.6 x 8.2 mm | |
| Weight | 280 g | 9.88 oz | 168 g |
| Battery | UMIDIGI Bison 2 | Oppo A3s |
| Battery | 6150 mAh, Li-Polymer, non-removable | |
| Battery capacity | 4230 mAh, Non-removable Li-Ion | |
| Other features | UMIDIGI Bison 2 | Oppo A3s |
| Sensors | Fingerprint (side-mounted), Proximity, Accelerometer, compass, gyro, barometer, Thermometer , Infrared port Wireless charging - -Fast charging 18.0W IP68, MIL-STD-810G -IP69K | |
| Other | UMIDIGI Bison 2 | Oppo A3s |
| Release date | 2018, July | |
| Sensors | Accelerometer, proximity, compass |
