| OPPO Muse R821 |
Samsung Galaxy A12 |
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| Hardware and OS | OPPO Muse R821 | Samsung Galaxy A12 |
| Operating system | Android 4.2 | Android v10 (Q) |
| Processor | MediaTek MT6572 | Octa core, 2.3 GHz, Cortex A53 |
| Processor cores number | 2 | |
| Chipset | MediaTek Helio P35 | |
| RAM | 512 Mb | 4 GB |
| Internal Storage | 2.50 GB | |
| Internal Memory | 64 GB | |
| Memory Card Slot | yes | |
| Expandable Memory | Yes, Up to 1 TB | |
| GPU | Mali-400 MP | |
| Custom UI | Samsung One UI | |
| Graphics | PowerVR GE8320 | |
| Display | OPPO Muse R821 | Samsung Galaxy A12 |
| Type | colored IPS, sensor | |
| Size | 4" | |
| Screen Size | 6.5 inches (16.51 cm) | |
| Resolution | 800x480 | 720 x 1600 pixels |
| Pixel Density | 233 | 270 ppi |
| Display Type | PLS TFT LCD | |
| Touchscreen | multitouch, capacitive | |
| Aspect Ratio | 5:3 | 20:9 |
| Touch Screen | Yes, Capacitive Touchscreen, Multi-touch | |
| Connectivity | OPPO Muse R821 | Samsung Galaxy A12 |
| Standard | GSM 900/1800/1900, 3G | |
| Interfaces | Wi-Fi, Bluetooth 2.1, USB | |
| Multi SIM mode | alternate | |
| SIM | regular micro SIM | |
| Network | 4G , 3G, 2G | |
| 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 | |
| Bluetooth | Yes, v5.0 | |
| NFC | No | |
| GPS | Yes with A-GPS, Glonass | |
| VoLTE | Yes | |
| Wi-Fi | Yes, Wi-Fi 802.11, b/g/n | |
| Wi-Fi Features | Wi-Fi Direct, Mobile Hotspot | |
| USB Connectivity | Mass storage device, USB charging | |
| Main Camera | OPPO Muse R821 | 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 | |
| Camera | OPPO Muse R821 | Samsung Galaxy A12 |
| Main camera | 3 MP, 2048x1536 | |
| Front camera | 0.3 megapixels | |
| Video Recording | yes | |
| Video resolution max | 1280x720 | |
| Multimedia | OPPO Muse R821 | Samsung Galaxy A12 |
| Audio | MP3, AAC, WAV, WMA, FM-radio | |
| Headphone jack | 3.5 mm | |
| Audio Jack | 3.5 mm | |
| Front Camera | OPPO Muse R821 | Samsung Galaxy A12 |
| Resolution | 8 MP f/2.2 Primary Camera | |
| Flash | No | |
| Autofocus | No | |
| Camera Setup | Single | |
| Video Recording | 1920x1080 @ 30 fps | |
| Design | OPPO Muse R821 | Samsung Galaxy A12 |
| Case type | classic | |
| Height | 123 mm | 164 mm |
| Width | 63.5 mm | 75.8 mm |
| Thickness | 9.9 mm | 8.9 mm |
| Weight | 124 grams | 205 grams |
| Build Material | Back: Plastic | |
| Colours | Black, Blue, White | |
| Battery | OPPO Muse R821 | Samsung Galaxy A12 |
| Capacity | 1700 mA?h | 5000 mAh |
| Battery | removable panels | |
| Battery type | Li-Ion | |
| Connector type for charging | micro-USB | |
| Standby time | 280 hours | |
| Talk time | 6 hours | |
| Type | Li-ion | |
| Removable | No | |
| Quick Charging | Yes, Fast, 15W | |
| TalkTime | Up to 34 Hours(4G) | |
| USB Type-C | Yes | |
| Other | OPPO Muse R821 | Samsung Galaxy A12 |
| Sensors | illumination sensor, approaching sensor | |
| Features | OPPO Muse R821 | Samsung Galaxy A12 |
| Fingerprint Sensor | Yes | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer |
