| Oppo A77 |
Samsung Galaxy A12 |
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| Hardware and OS | Oppo A77 | Samsung Galaxy A12 |
| Operating system | Android 7.1 (Nougat); ColorOS 3.1 | Android v10 (Q) |
| Processor | Octa-core 2.0 GHz Cortex-A53 | Octa core, 2.3 GHz, Cortex A53 |
| Chipset | Qualcomm MSM8953 Snapdragon 625 (14 nm) | MediaTek Helio P35 |
| GPU | Adreno 506 | |
| RAM | 4 GB | |
| Internal memory | 64 GB, 4 GB RAM | 64 GB |
| External memory | microSD, up to 256 GB (uses SIM 2 slot) | |
| Expandable Memory | Yes, Up to 1 TB | |
| Custom UI | Samsung One UI | |
| Graphics | PowerVR GE8320 | |
| Display | Oppo A77 | Samsung Galaxy A12 |
| Type | IPS LCD | |
| Size | 5.5" inc | |
| Resolution | 1080 x 1920 px | 720 x 1600 pixels |
| Screen Size | 6.5 inches (16.51 cm) | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 71.7% | |
| Display Type | PLS TFT LCD | |
| Display area | 83.4 cm2 | |
| Display aspect ratio | 16:9 (height:width) | |
| Touch Screen | Yes, Capacitive Touchscreen, Multi-touch | |
| Pixel Density | 401 PPI | 270 ppi |
| Aspect Ratio | 20:9 | |
| Colors | 16M | |
| Main Camera | Oppo A77 | Samsung Galaxy A12 |
| Resolution | 48 MP f/2.0 (upto 10x Digital Zoom), Wide Angle (80° field-of-view) Primary Camera(26 mm focal length)5 MP f/2.2, Wide Angle, Ultra-Wide Angle Camera 2 MP f/2.4, Macro Camera 2 MP f/2.4, Depth Camera | |
| Image Resolution | 8000 x 6000 Pixels | |
| Flash | Yes, LED Flash | |
| Camera Features | 10 x Digital Zoom Auto Flash Face detection Touch to focus | |
| Autofocus | Yes | |
| Camera Setup | Quad | |
| Video Recording | 1920x1080 @ 30 fps | |
| Settings | Exposure compensation, ISO control | |
| Connectivity | Oppo A77 | Samsung Galaxy A12 |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | |
| 4G Network | LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) - A77 | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, hotspot | Yes, Wi-Fi 802.11, b/g/n |
| Network | GSM / CDMA / HSPA / LTE | 4G , 3G, 2G |
| SIM card | Hybrid Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | 4.2, A2DP | Yes, v5.0 |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS | Yes with A-GPS, Glonass |
| Speed | HSPA, LTE | |
| USB | microUSB 2.0, USB On-The-Go | |
| SIM 1 | 4G Bands: TD-LTE 2300(band 40) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available | |
| SIM 2 | 4G Bands: TD-LTE 2300(band 40) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available | |
| NFC | No | |
| VoLTE | Yes | |
| Wi-Fi Features | Wi-Fi Direct, Mobile Hotspot | |
| USB Connectivity | Mass storage device, USB charging | |
| Front Camera | Oppo A77 | Samsung Galaxy A12 |
| Resolution | 8 MP f/2.2 Primary Camera | |
| Flash | No | |
| Autofocus | No | |
| Camera Setup | Single | |
| Video Recording | 1920x1080 @ 30 fps | |
| Camera | Oppo A77 | Samsung Galaxy A12 |
| Main camera | 13 MP, Single | |
| Specs | 13 MP, PDAF, f/2.2 | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | 16 MP, Single | |
| Multimedia | Oppo A77 | Samsung Galaxy A12 |
| 3.5 mm Jack | Yes | |
| Radio | No | |
| Audio Jack | 3.5 mm | |
| Design | Oppo A77 | Samsung Galaxy A12 |
| Colors | Gold, Rose Gold, Black | |
| Body build | Front glass, aluminum body | |
| Dimensions | 153.3 x 75.9 x 7.4 mm | |
| Weight | 148 g | 205 grams |
| Height | 164 mm | |
| Width | 75.8 mm | |
| Thickness | 8.9 mm | |
| Build Material | Back: Plastic | |
| Colours | Black, Blue, White | |
| Battery | Oppo A77 | Samsung Galaxy A12 |
| Battery capacity | 3200 mAh, Non-removable Li-Ion | |
| Type | Li-ion | |
| Capacity | 5000 mAh | |
| Removable | No | |
| Quick Charging | Yes, Fast, 15W | |
| TalkTime | Up to 34 Hours(4G) | |
| USB Type-C | Yes | |
| Other | Oppo A77 | Samsung Galaxy A12 |
| Release date | 2017, July | |
| Sensors | Fingerprint (front-mounted), accelerometer, proximity, compass | |
| Features | Oppo A77 | Samsung Galaxy A12 |
| Fingerprint Sensor | Yes | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer |
