| Ulefone Armor X8i |
Oppo A3s |
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| Hardware and OS | Ulefone Armor X8i | Oppo A3s |
| Operating system | Android 11 | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Octa-core (4x1.8 GHz Cortex-A53 & 4x1.5 GHz Cortex-A53) | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | MediaTek Helio A25 (12 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | PowerVR GE8320 | Adreno 506 |
| Internal memory | 32GB 3GB RAM | 16 GB, 2 GB RAM |
| External memory | microSDXC (uses shared SIM slot) | microSD, up to 256 GB (dedicated slot) |
| Display | Ulefone Armor X8i | Oppo A3s |
| Type | IPS LCD | IPS LCD |
| Size | 5.7 inches, 83.8 cm2 | 6.2" inc |
| Resolution | 720 x 1440 pixels, 18:9 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 | |
| Main Camera | Ulefone Armor X8i | Oppo A3s |
| Camera | 13 MP, f/2.2, (wide), AF 2 MP, (depth) 2 MP, (depth) | |
| Features | Dual-LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | Ulefone Armor X8i | Oppo A3s |
| Camera | 8 MP, f/2.4 | |
| Video | 1080p@30fps | |
| Connectivity | Ulefone Armor X8i | Oppo A3s |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | 1, 2, 3, 4, 5, 7, 8, 12, 17, 19, 20, 28 | LTE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot | |
| Network | GSM / HSPA / LTE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | 5.0, A2DP, LE | 4.2, A2DP, LE |
| NFC | Yes | |
| Edge | Yes | |
| GPRS | Yes | |
| Technology | GSM / HSPA / LTE | |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS |
| Speed | HSPA 21.1/5.76 Mbps, LTE Cat7 300/150 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot | |
| USB | USB Type-C 2.0 | microUSB 2.0, USB On-The-Go |
| Camera | Ulefone Armor X8i | 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 | Ulefone Armor X8i | Oppo A3s |
| Loudspeaker | Yes | |
| 3.5 mm Jack | Yes | Yes |
| Radio | FM radio, RDS, recording | FM radio |
| Design | Ulefone Armor X8i | Oppo A3s |
| Body | IP68/IP69K dust/water resistant (up to 1.5m for 30 mins) Drop-to-concrete resistance from up to 1.2 m MIL-STD-810G compliant | |
| Colors | Black, Orange, Red | Red, Dark Purple |
| SIM | Hybrid Dual SIM (Nano-SIM, dual stand-by) | |
| Dimensions | 160.3 x 79 x 13.8 mm (6.31 x 3.11 x 0.54 in) | 156.2 x 75.6 x 8.2 mm |
| Weight | 256 g (9.03 oz) | 168 g |
| Features | Ulefone Armor X8i | Oppo A3s |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity, compass | |
| Battery | Ulefone Armor X8i | Oppo A3s |
| Type | Li-Po 5080 mAh, non-removable | |
| Charging | Charging 10W | |
| Battery capacity | 4230 mAh, Non-removable Li-Ion | |
| Other | Ulefone Armor X8i | Oppo A3s |
| Release date | 2018, July | |
| Sensors | Accelerometer, proximity, compass |
