| Amazon Fire Phone |
Oppo A3s |
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| Hardware and OS | Amazon Fire Phone | Oppo A3s |
| Operating system | Amazon Fire 3.5 (Android based), upgradable to 3.6.5 | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Quad-core 2.2 GHz Krait 400 | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | Qualcomm Snapdragon 800 (28 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Adreno 330 | Adreno 506 |
| Internal memory | 32/64 GB, 2 GB RAM | 16 GB, 2 GB RAM |
| External memory | No | microSD, up to 256 GB (dedicated slot) |
| Display | Amazon Fire Phone | Oppo A3s |
| Type | IPS LCD | IPS LCD |
| Size | 4.7" inc | 6.2" inc |
| Resolution | 720 x 1280 px | 720 x 1520 px |
| Protection | Corning Gorilla Glass 3 (front and back) | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen |
| Screen-to-Body Ratio | 65.8% | 81.2% |
| Display area | 60.9 cm2 | 95.9 cm2 |
| Display aspect ratio | 16:9 (height:width) | 19:9 (height:width) |
| Pixel Density | 312 PPI | 271 PPI |
| Colors | 16M | 16M |
| Other | 3D Dynamic Perspective UI (based on 4 front cameras) -System wide tilt, auto-scroll, swivel, and peek functions | |
| Connectivity | Amazon Fire Phone | Oppo A3s |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1700 / 1900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 20(800) | LTE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| Network | GSM / HSPA / LTE | GSM / HSPA / LTE |
| SIM card | Nano-SIM | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth | 3.0 | 4.2, A2DP, LE |
| Edge | Yes | Yes |
| GPRS | Yes | Yes |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS |
| NFC | Yes | |
| Speed | HSPA, LTE | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | microUSB 2.0 | microUSB 2.0, USB On-The-Go |
| Camera | Amazon Fire Phone | Oppo A3s |
| Main camera | 13 MP, Single | 13 MP, Dual |
| Specs | 13 MP, OIS, AF | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor |
| Features | LED flash, HDR | LED flash, HDR, panorama |
| Video | 1080p@30fps | 1080p@30fps |
| Selfie camera | 2.1 MP, Single | 8 MP, Single |
| Multimedia | Amazon Fire Phone | Oppo A3s |
| 3.5 mm Jack | Yes | Yes |
| Radio | No | FM radio |
| Design | Amazon Fire Phone | Oppo A3s |
| Colors | Black | Red, Dark Purple |
| Dimensions | 139.2 x 66.5 x 8.9 mm | 156.2 x 75.6 x 8.2 mm |
| Weight | 160 g | 168 g |
| Battery | Amazon Fire Phone | Oppo A3s |
| Battery capacity | 2400 mAh, Non-removable Li-Ion | 4230 mAh, Non-removable Li-Ion |
| Battery life | Stand by time- Up to 285 h Talking time- Up to 22 h Music play - Up to 65 h | |
| Other | Amazon Fire Phone | Oppo A3s |
| Release date | 2014, June | 2018, July |
| Sensors | Accelerometer, gyro, proximity, compass, barometer | Accelerometer, proximity, compass |
