| Hardware and OS | Oppo Realme C3 (3 cameras) | |
| Operating system | Android 10.0; realme UI 1.0 | |
| Processor | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55) | |
| Chipset | Mediatek Helio G70 (12 nm) | |
| GPU | Mali-G52 2EEMC2 | |
| Internal memory | 32GB 2GB RAM, 32GB 3GB RAM, 64GB 4GB RAM | |
| External memory | microSDXC (dedicated slot) | |
| Display | Oppo Realme C3 (3 cameras) | other phones |
| Type | IPS LCD | |
| Size | 6.5" inc | |
| Resolution | 720 x 1600 px | |
| Protection | Corning Gorilla Glass 3 | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 82.7% | |
| Display area | 102.0 cm2 | |
| Display aspect ratio | 20:9 (height:width) | |
| Pixel Density | 270 PPI | |
| Colors | 16M | |
| Other | 480 nits max brightness | |
| Connectivity | Oppo Realme C3 (3 cameras) | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 38(2600), 40(2300), 41(2500) | |
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | |
| Network | GSM / HSPA / LTE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | 5.0, A2DP, LE, aptX | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS, GLONASS, BDS | |
| Speed | HSPA 42.2/11.5 Mbps, LTE-A (2CA) Cat6 300/75 Mbps | |
| USB | microUSB 2.0, USB On-The-Go | |
| Camera | Oppo Realme C3 (3 cameras) | other phones |
| Main camera | 12 MP, Triple | |
| Specs | 12 MP, f/1.8, 28mm (wide), 1/2.8', 1.25µm, PDAF
-2 MP, (macro)
-2 MP, f/2.4, (depth) | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | 5 MP, Single | |
| Multimedia | Oppo Realme C3 (3 cameras) | other phones |
| 3.5 mm Jack | Yes | |
| Radio | FM radio | |
| Design | Oppo Realme C3 (3 cameras) | other phones |
| Colors | Frozen Blue, Blazing Red | |
| Body build | Glass front (Gorilla Glass 3), plastic back, plastic frame | |
| Dimensions | 164.4 x 75 x 9 mm | |
| Weight | 195 g | |
| Battery | Oppo Realme C3 (3 cameras) | other phones |
| Battery capacity | 5000 mAh, Non-removable Li-Po | |
| Other | Oppo Realme C3 (3 cameras) | other phones |
| Release date | 2020, February 19 | |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity, compass | |
