| Nokia Lumia 830 |
Oppo A3s |
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| Hardware and OS | Nokia Lumia 830 | Oppo A3s |
| Operating system | Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10 | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Quad-core 1.2 GHz Cortex-A7 | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | Qualcomm Snapdragon 400 (28 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Adreno 305 | Adreno 506 |
| Internal memory | 16 GB, 1 GB RAM | 16 GB, 2 GB RAM |
| External memory | microSD, up to 256 GB (dedicated slot) | microSD, up to 256 GB (dedicated slot) |
| Display | Nokia Lumia 830 | Oppo A3s |
| Type | IPS LCD | IPS LCD |
| Size | 5" inc | 6.2" inc |
| Resolution | 720 x 1280 px | 720 x 1520 px |
| Protection | Corning Gorilla Glass 3 | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen |
| Screen-to-Body Ratio | 69.9% | 81.2% |
| Display area | 68.9 cm2 | 95.9 cm2 |
| Display aspect ratio | 16:9 (height:width) | 19:9 (height:width) |
| Pixel Density | 294 PPI | 271 PPI |
| Colors | 16M | 16M |
| Other | ClearBlack display | |
| Connectivity | Nokia Lumia 830 | Oppo A3s |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | LTE band 1(2100), 3(1800), 7(2600), 8(900), 20(800) | LTE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, hotspot | 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 | 4.0, A2DP, EDR, LE, aptX | 4.2, A2DP, LE |
| Edge | Up to 296 kbps | Yes |
| GPRS | Yes | Yes |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS |
| NFC | Yes | |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | 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 | Nokia Lumia 830 | Oppo A3s |
| Main camera | 10 MP, Single | 13 MP, Dual |
| Specs | 10 MP, f/2.2, 26mm (wide), 1/3.4', OIS, AF | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor |
| Features | Zeiss optics, LED flash, panorama | LED flash, HDR, panorama |
| Video | 1080p@30fps, stereo sound rec. | 1080p@30fps |
| Selfie camera | 0.9 MP, Single | 8 MP, Single |
| Multimedia | Nokia Lumia 830 | Oppo A3s |
| 3.5 mm Jack | Yes | Yes |
| Radio | FM radio | FM radio |
| Design | Nokia Lumia 830 | Oppo A3s |
| Colors | Orange, green, white, black, gold | Red, Dark Purple |
| Dimensions | 139.4 x 70.7 x 8.5 mm | 156.2 x 75.6 x 8.2 mm |
| Weight | 150 g | 168 g |
| Battery | Nokia Lumia 830 | Oppo A3s |
| Battery capacity | 2200 mAh, Removable Li-Ion | 4230 mAh, Non-removable Li-Ion |
| Battery life | Stand by time- Up to 528 h Talking time- Up to 12 h 54 min (2G) / Up to 14 h 48 min (3G) Music play - Up to 78 h | |
| Other | Nokia Lumia 830 | Oppo A3s |
| SAR | SAR - 0.87 W/kg (head), 0.83 W/kg (body), SAR EU - 0.46 W/kg (head), 0.59 W/kg (body) | |
| Release date | 2014, September | 2018, July |
| Sensors | Accelerometer, gyro, proximity, compass | Accelerometer, proximity, compass |
