| Hardware and OS | AT&T SMT5700 | Oppo A3s |
| Operating system | Microsoft Windows Mobile 5.0 PocketPC | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | 260 MHz | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | TI OMAP V1030 | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | | Adreno 506 |
| Internal memory | | 16 GB, 2 GB RAM |
| External memory | microSD (dedicated slot) | microSD, up to 256 GB (dedicated slot) |
| Display | AT&T SMT5700 | Oppo A3s |
| Type | TFT, 65K colors | IPS LCD |
| Size | | 6.2" inc |
| Resolution | 320 x 240 pixels, 4:3 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 |
| Main Camera | AT&T SMT5700 | Oppo A3s |
| Camera | 2 MP | |
| Video | Yes | |
| Selfie camera | AT&T SMT5700 | Oppo A3s |
| Camera | No | |
| Connectivity | AT&T SMT5700 | Oppo A3s |
| 2G Network | GSM 850 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | | HSDPA 850 / 900 / 2100 |
| Technology | GSM | |
| 4G Network | | LTE |
| Wi-Fi | | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| WLAN | No | |
| Network | | GSM / HSPA / LTE |
| SIM card | | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth | 1.2, A2DP | 4.2, A2DP, LE |
| Edge | Class 10 | Yes |
| GPRS | Class 10 | Yes |
| GPS | No | Yes, with A-GPS |
| Speed | | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | Proprietary | microUSB 2.0, USB On-The-Go |
| Camera | AT&T SMT5700 | Oppo A3s |
| Main camera | | 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 MP, Single |
| Multimedia | AT&T SMT5700 | Oppo A3s |
| Loudspeaker | Yes | |
| 3.5 mm Jack | No | Yes |
| Radio | No | FM radio |
| Design | AT&T SMT5700 | Oppo A3s |
| SIM | Mini-SIM | |
| Keyboard | QWERTY | |
| Colors | Gray | Red, Dark Purple |
| Dimensions | 112 x 60 x 14 mm (4.41 x 2.36 x 0.55 in) | 156.2 x 75.6 x 8.2 mm |
| Weight | | 168 g |
| Battery | AT&T SMT5700 | Oppo A3s |
| Capacity | Removable Li-Ion battery | |
| Battery capacity | | 4230 mAh, Non-removable Li-Ion |
| Other | AT&T SMT5700 | Oppo A3s |
| Release date | | 2018, July |
| Sensors | | Accelerometer, proximity, compass |
