| O2 Xphone IIm |
Oppo A3s |
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| Hardware and OS | O2 Xphone IIm | Oppo A3s |
| Operating system | Microsoft Smartphone 2003 SE | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | 200 MHz ARM926EJ-S | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | TI OMAP 730 | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| Internal memory | 32 MB | 16 GB, 2 GB RAM |
| GPU | Adreno 506 | |
| External memory | MiniSD | microSD, up to 256 GB (dedicated slot) |
| Display | O2 Xphone IIm | Oppo A3s |
| Type | TFT | IPS LCD |
| Size | 2.2" inc | 6.2" inc |
| Resolution | 176 x 220 px | 720 x 1520 px |
| Screen-to-Body Ratio | 30.3% | 81.2% |
| Display area | 15.2 cm2 | 95.9 cm2 |
| Touchscreen | capacitive touchscreen | |
| Colors | 65K | 16M |
| Other | 5-way navigation button -3-color LED indicator -Downloadable logos | |
| Display aspect ratio | 19:9 (height:width) | |
| Pixel Density | 271 PPI | |
| Connectivity | O2 Xphone IIm | Oppo A3s |
| Wi-Fi | No | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| Network | GSM | GSM / HSPA / LTE |
| SIM card | Mini-SIM | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth | 1.1 | 4.2, A2DP, LE |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| Edge | No | Yes |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| GPRS | Class 10 | Yes |
| 4G Network | LTE | |
| GPS | No | Yes, with A-GPS |
| USB | Proprietary | microUSB 2.0, USB On-The-Go |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps | |
| Camera | O2 Xphone IIm | Oppo A3s |
| Main camera | 0.3 MP, Single | 13 MP, Dual |
| Video | Yes | 1080p@30fps |
| Specs | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor | |
| Features | LED flash, HDR, panorama | |
| Selfie camera | 8 MP, Single | |
| Multimedia | O2 Xphone IIm | Oppo A3s |
| 3.5 mm Jack | No | Yes |
| Radio | No | FM radio |
| Design | O2 Xphone IIm | Oppo A3s |
| Colors | Stylish black and silver | Red, Dark Purple |
| Dimensions | 107 x 47 x 19 mm | 156.2 x 75.6 x 8.2 mm |
| Weight | 106 g | 168 g |
| Battery | O2 Xphone IIm | Oppo A3s |
| Battery capacity | 1050 mAh, Removable Li-Ion | 4230 mAh, Non-removable Li-Ion |
| Battery life | Stand by time- Up to 140 h Talking time- Up to 4 h | |
| Other | O2 Xphone IIm | Oppo A3s |
| Release date | 2005, Q1 | 2018, July |
| Sensors | Infrared port | Accelerometer, proximity, compass |
