OPPO is introducing the successor to the OPPO A54 smartphone, dubbed as the OPPO A55 4G. The OPPO A55 4G flaunts a 6.5-inch IPS LCD display that has HD+ 720 x 1600 pixels resolution. The screen has a punch-hole at the top left corner which includes the selfie camera. The device under the hood is powered by an octa-core Helio G35 chipset. It packs up to 6GB of RAM and 128GB of internal storage. The phone boots Android 11-based ColorOS 11.1 out of the box. The device features a triple-camera setup which includes a 50MP primary main camera and a pair of 2MP sensors. At the front, the A55 is equipped with a 16MP selfie camera unit. The phone packs a 5000mAh battery that has 18W fast charging support. In terms of connectivity, the OPPO A55 has dual 4G VoLTE support, Wi-Fi 802.11 b/g/n/ac, Bluetooth v5.0, GPS, a 3.5mm audio jack and a USB Type-C port. The other popular mobile by OPPO includes OPPO A74 and OPPO F17 Pro.
| Processor | MediaTek Helio G35 |
| Display | 6.51 inches (16.54 cms) |
| Storage | 128 GB |
| Front Camera | Single (16 MP, f/2, Wide Angle Camera(26 mm focal length)) |
| Rear Camera | Triple (50 MP, f/1.8, Wide Angle(77° field-of-view) Camera + 2 MP, f/2.4 Camera + 2 MP, f/2.4 Camera) |
| Battery | 5000 mAh |
| RAM | 6 GB |
| Launch Date | October 11, 2021 |
| Dimensions | 6.44 x 2.98 x 0.33 inch (163.6 x 75.7 x 8.4 mm) |
| Weight | 193 grams |
| Face unlock | Yes |
| Water Resistant | Yes, Splash proof, IPX4 |
| Colors | Starry Black, Rainbow Blue |
| Chipset | MediaTek Helio G35 |
| CPU | Octa core, 2.3GHz, Cortex A53 |
| Architecture | 64-bit |
| Graphics | PowerVR GE8320 |
| Operating System | Android v11 |
| Custom UI | ColorOS |
| Internal Memory | 128 GB |
| RAM | 6 GB |
| Expandable Memory | Yes, microSD, Up to 256 GB (Dedicated) |
| Resolution | 720 x 1600 pixels |
| Size | 6.51 inches (16.54 cms) |
| Display Type | IPS LCD, Dinorex Glass |
| Aspect ratio | 20:9 |
| Bezel-less display | Yes, with Punch-hole |
| Brightness | 480 nits |
| Protection | Yes |
| TouchScreen | Yes, Capacitive, Multi-touch |
| Color Reproduction | 16M Colors |
| Screen to body percentage | 82.62 % |
| Pixel Density | 270 pixels per inch (ppi) |
| Flash | Rear (LED Flash) |
| Rear | Triple (50 MP, f/1.8, Wide Angle(77° field-of-view) Camera + 2 MP, f/2.4 Camera + 2 MP, f/2.4 Camera) |
| Front | Single (16 MP, f/2, Wide Angle Camera(26 mm focal length)) |
| Camera Features | Auto Flash, Auto Focus, Face detection, Touch to focus |
| Shooting Modes | Continuos Shooting, High Dynamic Range mode (HDR) |
| Video | Rear: 1920x1080 @ 30 fps, 1280x720 @ 30 fps, Front: 1920x1080 @ 30 fps, 1280x720 @ 30 fps |
| Charging speed | 33 % in 30 minutes (claimed by Brand) |
| Type | Li-Polymer |
| Capacity | 5000 mAh |
| Removable | No |
| Fast Charging | Yes, 18W |
| Wireless Charging | No |
| USB OTG Support | Yes |
| Wi-Fi | Yes with a/ac/b/g/n/n 5GHz |
| SIM Configuration | Dual SIM (SIM1: Nano) (SIM2: Nano) |
| Bluetooth | Bluetooth v5.0 |
| Network | 4G: Available (supports Indian bands), 3G: Available, 2G: Available |
| Voice over LTE(VoLTE) | Yes |
| Wi-fi features | Mobile Hotspot |
| GPS | Yes with A-GPS, Glonass |
| Infrared | Yes |
| USB | USB Type-C, Mass storage device, USB charging, USB On-The-Go |
| NFC Chipset | No |
| Fingerprint sensor | Yes, Side |
| Other Sensor | Light sensor, Proximity sensor, Accelerometer |
| Speaker | Yes |
| Audio Jack | Yes, 3.5mm |