| Hardware and OS | UMIDIGI G1 | Oppo A3s |
| Operating system | Android 11 | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Quad-core (1x2.0 GHz Cortex-A75 & 3x1.8 GHz Cortex-A55) | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | UNISOC Tiger T310 (12 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | PowerVR GT7200 | Adreno 506 |
| RAM | 4GB 32GB / 4GB 64GB | |
| Internal memory | | 16 GB, 2 GB RAM |
| Memory Card Slot | Yes, up to 256 GB via microSD card (uses dedicated slot) | |
| External memory | | microSD, up to 256 GB (dedicated slot) |
| Display | UMIDIGI G1 | Oppo A3s |
| Type | IPS LCD capacitive touchscreen, 16M colors | IPS LCD |
| Size | 6.7 inches, (84.4% screen-to-body ratio) | 6.2" inc |
| Resolution | 720 x 1650 pixels, 20:9 ratio | 720 x 1520 px |
| Touchscreen | | capacitive touchscreen |
| Screen-to-Body Ratio | | 81.2% |
| Display area | | 95.9 cm2 |
| Display aspect ratio | | 19:9 (height:width) |
| Pixel Density | | 271 PPI |
| Colors | | 16M |
| Connectivity | UMIDIGI G1 | Oppo A3s |
| Technology | GSM / HSPA / LTE | |
| 2G Network | GSM Bands 2 (1900), 3 (1800), 5 (850), 8 (900) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA Bands 1 (2100), 2 (1900), 4 (1700), 5 (850) , 6 (800), 8 (900), 19 (800) | HSDPA 850 / 900 / 2100 |
| NFC | No | |
| 4G Network | LTE Bands 1-5, 7, 8, 12, 13, 17-20, 26, 28, 34, 38-41, 66 | LTE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| Network | | GSM / HSPA / LTE |
| SIM card | | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth | Bluetooth 5.0, A2DP, LE | 4.2, A2DP, LE |
| Edge | | Yes |
| GPRS | | Yes |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | USB Type-C v2.0, USB-OTG | microUSB 2.0, USB On-The-Go |
| Camera | UMIDIGI G1 | Oppo A3s |
| Camera Features | Autofocus / Continuous shooting / Digital zoom / HDR / Touch focus / Face detection / LED flash | |
| Camera Type | Double Lenses | |
| Video Recording | 1080@30fps, 720p@30fps, | |
| Video Resolution | 1080p@30fps | |
| Main camera | Main: 16MP, f/2.2, PDAF
Ultrawide: 8MP, F2.2, 119° FoV | 13 MP, Dual |
| Specs | | 13 MP, f/2.2, AF
-2 MP, f/2.4, depth sensor |
| Features | | LED flash, HDR, panorama |
| Video | | 1080p@30fps |
| Selfie camera | 8-megapixel, f/2.2 aperture | 8 MP, Single |
| Multimedia | UMIDIGI G1 | Oppo A3s |
| Headphone jack | Yes, 3.5mm audio jack | |
| FM Radio | Yes, FM Radio | |
| Loudspeaker | Yes | |
| Speaker Location | Chin, below display | |
| 3.5 mm Jack | | Yes |
| Radio | | FM radio |
| Design | UMIDIGI G1 | Oppo A3s |
| Body build | AG Matte Glass with Metal Frame | |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Colors | | Red, Dark Purple |
| Dimensions | 168 x 75.68 x 8.7 mm | 156.2 x 75.6 x 8.2 mm |
| Weight | 207 grams | 168 g |
| Battery | UMIDIGI G1 | Oppo A3s |
| Capacity | Non-removable Li-Po 5150 mAh battery | |
| Fast Charging | 10W battery charging | |
| Battery capacity | | 4230 mAh, Non-removable Li-Ion |
| Other features | UMIDIGI G1 | Oppo A3s |
| Colors | Galaxy Blue / Starry Black / Sunglow Gold | |
| Sensors | Fingerprint (rear-mounted), accelerometer, gyro, proximity | |
| Other | UMIDIGI G1 | Oppo A3s |
| Release date | | 2018, July |
| Sensors | | Accelerometer, proximity, compass |
