| Xiaomi Poco X4 NFC |
Oppo A3s |
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| Hardware and OS | Xiaomi Poco X4 NFC | Oppo A3s |
| Operating system | Android 11, MIUI 12.5 | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Octa-core (2x2.5 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | MediaTek Dimensity 920 (6 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Mali-G68 MC4 | Adreno 506 |
| Internal memory | 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM | 16 GB, 2 GB RAM |
| External memory | No | microSD, up to 256 GB (dedicated slot) |
| Display | Xiaomi Poco X4 NFC | Oppo A3s |
| Type | Super AMOLED | IPS LCD |
| Size | 6.67" inc | 6.2" inc |
| Resolution | 1080 x 2400 px | 720 x 1520 px |
| Touchscreen | capacitive touchscreen | capacitive touchscreen |
| Display colors | 16M | |
| Screen-to-Body Ratio | 81.2% | |
| Screen area | 107.4 cm2 | |
| Display area | 95.9 cm2 | |
| Screen format | 20:9 (height:width) | |
| Display aspect ratio | 19:9 (height:width) | |
| Screen to body ratio | 86.1% | |
| Pixel Density | 271 PPI | |
| PPI /points per inch/ | 395 PPI | |
| Colors | 16M | |
| Screen protection | Corning Gorilla Glass 5 | |
| Connectivity | Xiaomi Poco X4 NFC | Oppo A3s |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| 4G Network | LTE | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| NFC | Yes | |
| Network | GSM / HSPA / EVDO / LTE / 5G | GSM / HSPA / LTE |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth | 5.2, A2DP, LE | 4.2, A2DP, LE |
| Edge | Yes | Yes |
| GPRS | Yes | Yes |
| GPS | Yes, with A-GPS. Up to tri-band: GLONASS (1), BDS (3), GALILEO (2), QZSS (2), NavIC | Yes, with A-GPS |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps | |
| USB | USB Type-C 2.0, USB On-The-Go | microUSB 2.0, USB On-The-Go |
| Camera | Xiaomi Poco X4 NFC | Oppo A3s |
| Rear camera, main | 108 MP, Triple | |
| Main camera | 13 MP, Dual | |
| Camera specs | 108 MP, f/1.9, 26mm (wide), 1/1.52", 0.7µm, PDAF -8 MP, 120? (ultrawide) - 2 MP, f/2.4, 50mm (telephoto macro) | |
| Specs | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor | |
| Functions | LED flash, HDR, panorama | |
| Features | LED flash, HDR, panorama | |
| Video | 4K@30fps, 1080p@30/60/120fps, 720p@960fps | 1080p@30fps |
| Front camera, selfie | 16 MP, Single | |
| Selfie camera | 8 MP, Single | |
| Specifications | 16 MP, f/2.5, (wide), 1/3.06" 1.0µm | |
| Multimedia | Xiaomi Poco X4 NFC | Oppo A3s |
| 3.5 mm Jack | Yes | |
| Headphone jack | Yes | |
| Radio | FM radio | |
| Others | 24-bit/192kHz audio -Tuned by JBL | |
| Design | Xiaomi Poco X4 NFC | Oppo A3s |
| Colors | Mysterious Black, Forest Green, Timeless Purple, Milky Way Blue | Red, Dark Purple |
| Dimensions (HxWxD) | 163.7 x 76.2 x 8.3 mm | 6.44 x 3 x 0.33 in | |
| Dimensions | 156.2 x 75.6 x 8.2 mm | |
| Weight | 207 g | 7.3 oz | 168 g |
| Body build | Glass front (Gorilla Glass 5), glass back | |
| Battery | Xiaomi Poco X4 NFC | Oppo A3s |
| Battery capacity | 4230 mAh, Non-removable Li-Ion | |
| Battery | 5160 mAh, Li-Po, non-removable | |
| Other | Xiaomi Poco X4 NFC | Oppo A3s |
| Release date | 2018, July | |
| Sensors | Accelerometer, proximity, compass | |
| Other features | Xiaomi Poco X4 NFC | Oppo A3s |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass , Infrared port Fast charging 67W, 100% in 43 min -Power Delivery 3.0 -Quick Charge 3 |
