| Nokia Lumia 1520 |
Oppo A3s |
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| Hardware and OS | Nokia Lumia 1520 | Oppo A3s |
| Operating system | Microsoft Windows Phone 8, upgradable to Windows 10 | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Quad-core 2.2 GHz Krait 400 | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | Qualcomm MSM8974 Snapdragon 800 (28 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Adreno 330 | Adreno 506 |
| Internal memory | 16 GB (RM-940 only)/32 GB, 2 GB RAM | 16 GB, 2 GB RAM |
| External memory | microSD, up to 64 GB (dedicated slot) | microSD, up to 256 GB (dedicated slot) |
| Display | Nokia Lumia 1520 | Oppo A3s |
| Type | IPS LCD | IPS LCD |
| Size | 6" inc | 6.2" inc |
| Resolution | 1080 x 1920 px | 720 x 1520 px |
| Protection | Corning Gorilla Glass 2 | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen |
| Screen-to-Body Ratio | 71.4% | 81.2% |
| Display area | 99.2 cm2 | 95.9 cm2 |
| Display aspect ratio | 16:9 (height:width) | 19:9 (height:width) |
| Pixel Density | 367 PPI | 271 PPI |
| Colors | 16M | 16M |
| Other | ClearBlack display | |
| Connectivity | Nokia Lumia 1520 | Oppo A3s |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - all versions | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 - RM-937, RM-939, RM-940 | HSDPA 850 / 900 / 2100 |
| 4G Network | LTE band 1(2100), 3(1800), 7(2600), 8(900), 20(800) - RM-937 | LTE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, 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 after WP8 Denim update | 4.2, A2DP, LE |
| Edge | Up to 236.8 kbps | Yes |
| GPRS | Yes | Yes |
| GPS | Yes, with A-GPS, GLONASS | 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 1520 | Oppo A3s |
| Main camera | 20 MP, Single | 13 MP, Dual |
| Specs | 20 MP, f/2.4, 26mm (wide), 1/2.5', 1.12µm, OIS, AF | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor |
| Features | Zeiss optics, dual-LED flash, panorama | LED flash, HDR, panorama |
| Video | 2160p@30fps (after WP8 Denim update), 1080p@30fps, stereo sound rec. | 1080p@30fps |
| Selfie camera | 1.2 MP, Single | 8 MP, Single |
| Multimedia | Nokia Lumia 1520 | Oppo A3s |
| 3.5 mm Jack | Yes | Yes |
| Radio | FM radio | FM radio |
| Design | Nokia Lumia 1520 | Oppo A3s |
| Colors | Yellow, white, black, red, green (AT&T) | Red, Dark Purple |
| Dimensions | 162.8 x 85.4 x 8.7 mm | 156.2 x 75.6 x 8.2 mm |
| Weight | 209 g | 168 g |
| Battery | Nokia Lumia 1520 | Oppo A3s |
| Battery capacity | 3400 mAh, Non-removable Li-Ion | 4230 mAh, Non-removable Li-Ion |
| Battery life | Stand by time- Up to 768 h (2G) / Up to 768 h (3G) Talking time- Up to 27 h 40 min (2G) / Up to 25 h (3G) Music play - Up to 124 h | |
| Other | Nokia Lumia 1520 | Oppo A3s |
| SAR | SAR EU - 0.64 W/kg (head), 0.20 W/kg (body) | |
| Release date | 2013, October | 2018, July |
| Sensors | Accelerometer, gyro, proximity, compass, sensor core | Accelerometer, proximity, compass |
