| Xiaomi Redmi 4 (China) |
OPPO A15 |
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| Hardware and OS | Xiaomi Redmi 4 (China) | OPPO A15 |
|---|---|---|
| Operating system | Android 6.0.1 (Marshmallow); MIUI 8 | Android v10 (Q) |
| Processor | Octa-core 1.4 GHz Cortex-A53 | Octa core, 2.3 GHz, Cortex A53 |
| Custom UI | ColorOS | |
| Chipset | Qualcomm MSM8937 Snapdragon 430 (28 nm) | MediaTek Helio P35 |
| Internal memory | 16GB 2GB RAM | 32 GB |
| External memory | microSDXC (uses shared SIM slot) | |
| Architecture | 64 bit | |
| GPU | Adreno 505 | |
| RAM | 3 GB | |
| Expandable Memory | yes Up to 256 GB | |
| Graphics | PowerVR GE8320 | |
| SIM Slot(s) | Dual SIM, GSM GSM | |
| Display | Xiaomi Redmi 4 (China) | OPPO A15 |
| Size | 5.0 inches, 68.0 cm2 | |
| Resolution | 720 x 1280 pixels, 16:9 ratio | |
| Type | IPS LCD capacitive touchscreen, 16M colors | |
| Screen Size | 6.52 inches (16.56 cm) | |
| Screen Resolution | 720 x 1600 pixels | |
| Display Type | IPS LCD | |
| Pixel Density | 269 ppi | |
| Aspect Ratio | 20:9 | |
| Refresh Rate | 60 Hz | |
| Screen to Body Ratio | 88.7 % | |
| Touch Screen | yes Capacitive Touchscreen, Multi-touch | |
| Main Camera | Xiaomi Redmi 4 (China) | OPPO A15 |
| Camera | 13 MP, f/2.2, PDAF | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Resolution | 13 MP f/2.2, Wide Angle Primary Camera(3.1" sensor size, 1.12µm pixel size)2 MP f/2.4, Depth Camera 2 MP f/2.4, Macro Camera | |
| Image Resolution | 4128 x 3096 Pixels | |
| Flash | yes LED Flash | |
| Camera Features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Autofocus | yes | |
| Physical Aperture | F2.2 | |
| Video Recording | 1920x1080 @ 30 fps | |
| Shooting Modes | Continuos Shooting, High Dynamic Range mode (HDR) | |
| Settings | Exposure compensation, ISO control | |
| Selfie camera | Xiaomi Redmi 4 (China) | OPPO A15 |
| Camera | 5 MP, f/2.2 | |
| Video | 1080p@30fps | |
| Connectivity | Xiaomi Redmi 4 (China) | OPPO A15 |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | |
| 4G Network | LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) | |
| Bluetooth | 4.1, A2DP, LE | yes v5.0 |
| CDMA | CDMA 800 / 1900 | |
| GPS | Yes, with A-GPS, GLONASS, BDS | yes with A-GPS, Glonass |
| Infrared port | Yes | |
| Speed | HSPA, LTE | |
| Technology | GSM / CDMA / HSPA / EVDO / LTE | |
| USB | microUSB 2.0 | |
| WLAN | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, hotspot | |
| Network | 4G: Available , 3G: Available, 2G: Available | |
| SIM Size | SIM1: Nano, SIM2: Nano | |
| NFC | No | |
| VoLTE | yes | |
| Wi-Fi | yes Wi-Fi 802.11, b/g/n/n 5GHz | |
| Wi-Fi Features | Mobile Hotspot | |
| USB Connectivity | Mass storage device, USB charging, microUSB 2.0 | |
| Front Camera | Xiaomi Redmi 4 (China) | OPPO A15 |
| Resolution | 5 MP f/2.4 Primary Camera | |
| Physical Aperture | F2.4 | |
| Multimedia | Xiaomi Redmi 4 (China) | OPPO A15 |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes | yes |
| Radio | FM radio | |
| Audio Jack | 3.5 mm | |
| Battery | Xiaomi Redmi 4 (China) | OPPO A15 |
| Capacity | Non-removable Li-Po 4100 mAh battery | 4230 mAh |
| Type | Li-Polymer | |
| User Replaceable | No | |
| Quick Charging | No | |
| Standby time | Up to 323 Hours(2G) | |
| USB Type-C | No | |
| USB OTG Support | yes | |
| Design | Xiaomi Redmi 4 (China) | OPPO A15 |
| Colors | Gold, Dark Gray, Silver | |
| Dimensions | 141.3 x 69.6 x 8.9 mm (5.56 x 2.74 x 0.35 in) | |
| Weight | 156 g (5.50 oz) | 175 grams |
| SIM | Hybrid Dual SIM | |
| Height | 164 mm | |
| Width | 75.4 mm | |
| Thickness | 7.9 mm | |
| Build Material | Back: Plastic | |
| Colours | Dynamic Black, Mystery Blue | |
| Features | Xiaomi Redmi 4 (China) | OPPO A15 |
| Sensors | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass | |
| Fingerprint Sensor | yes | |
| Fingerprint Sensor Position | Rear | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer |
