| Tecno Spark 4 Air |
Oppo A3s |
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| Hardware and OS | Tecno Spark 4 Air | Oppo A3s |
| Operating system | Android v9.0 (Pie) | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Quad core, 2 GHz, Cortex A53 | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | MediaTek Helio A22 | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Adreno 506 | |
| Architecture | 64 bit | |
| Internal memory | 32 GB | 16 GB, 2 GB RAM |
| RAM | 3 GB | |
| External memory | microSD, up to 256 GB (dedicated slot) | |
| Expandable Memory | yes Up to 256 GB | |
| Graphics | PowerVR GE8300 | |
| SIM Slot(s) | Dual SIM, GSM GSM, Dual VoLTE | |
| Display | Tecno Spark 4 Air | Oppo A3s |
| Type | IPS LCD | |
| Size | 6.2" inc | |
| Resolution | 720 x 1520 px | |
| Touchscreen | capacitive touchscreen | |
| Screen Size | 6.1 inches (15.49 cm) | |
| Screen-to-Body Ratio | 81.2% | |
| Screen Resolution | 720 x 1500 pixels | |
| Display area | 95.9 cm2 | |
| Display Type | IPS LCD | |
| Display aspect ratio | 19:9 (height:width) | |
| Pixel Density | 273 ppi | 271 PPI |
| Aspect Ratio | 19.5:9 | |
| Colors | 16M | |
| Screen to Body Ratio | 85 % | |
| Touch Screen | yes Capacitive Touchscreen, Multi-touch | |
| Connectivity | Tecno Spark 4 Air | Oppo A3s |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| 4G Network | LTE | |
| Wi-Fi | yes Wi-Fi 802.11, a/b/g/n | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| Network | 4G: Available , 3G: Available, 2G: Available | GSM / HSPA / LTE |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | yes | 4.2, A2DP, LE |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | yes with A-GPS | Yes, with A-GPS |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps | |
| USB | microUSB 2.0, USB On-The-Go | |
| SIM Size | SIM1: Nano, SIM2: Nano | |
| VoLTE | yes | |
| Wi-Fi Features | Mobile Hotspot | |
| USB Connectivity | Mass storage device, USB charging, microUSB 2.0 | |
| Main Camera | Tecno Spark 4 Air | Oppo A3s |
| Resolution | 13 MP f/2.0 Primary Camera 0.3 MP, Depth Camera | |
| Image Resolution | 4128 x 3096 Pixels | |
| Flash | yes Dual LED Flash | |
| Camera Features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Autofocus | yes | |
| Physical Aperture | F2.0 | |
| Shooting Modes | Continuos Shooting, High Dynamic Range mode (HDR) | |
| Settings | Exposure compensation | |
| Front Camera | Tecno Spark 4 Air | Oppo A3s |
| Resolution | 5 MP f/2.2 Primary Camera | |
| Flash | yes LED Flash | |
| Physical Aperture | F2.2 | |
| Camera | Tecno Spark 4 Air | 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 | Tecno Spark 4 Air | Oppo A3s |
| 3.5 mm Jack | Yes | |
| Radio | FM radio | |
| Audio Jack | 3.5 mm | |
| Loudspeaker | yes | |
| Design | Tecno Spark 4 Air | Oppo A3s |
| Colors | Red, Dark Purple | |
| Dimensions | 156.2 x 75.6 x 8.2 mm | |
| Weight | 168 g | |
| Build Material | Back: Plastic | |
| Colours | Nebula Black, Royal Purple | |
| Battery | Tecno Spark 4 Air | Oppo A3s |
| Battery capacity | 4230 mAh, Non-removable Li-Ion | |
| Type | Li-ion | |
| Capacity | 3000 mAh | |
| User Replaceable | No | |
| Quick Charging | No | |
| USB Type-C | No | |
| USB OTG Support | yes | |
| Other | Tecno Spark 4 Air | Oppo A3s |
| Release date | 2018, July | |
| Sensors | Accelerometer, proximity, compass | |
| Features | Tecno Spark 4 Air | Oppo A3s |
| Fingerprint Sensor | yes | |
| Fingerprint Sensor Position | Rear | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer |
