| Microsoft Surface Duo 2 |
Oppo A3s |
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| Hardware and OS | Microsoft Surface Duo 2 | Oppo A3s |
| Operating system | Android 11 | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680) | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | Qualcomm SM8350 Snapdragon 888 5G (5 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Adreno 660 | Adreno 506 |
| Internal memory | 128GB 8GB RAM, 256GB 8GB RAM, 512GB 8GB RAM | 16 GB, 2 GB RAM |
| External memory | No | microSD, up to 256 GB (dedicated slot) |
| Display | Microsoft Surface Duo 2 | Oppo A3s |
| Type | AMOLED, 90Hz, HDR, 800 nits (peak) | IPS LCD |
| Size | 8.3 inches, 204.0 cm2 | 6.2" inc |
| Resolution | 1892 x 2688 pixels | 720 x 1520 px |
| Touchscreen | capacitive touchscreen | |
| Protection | Corning Gorilla Glass Victus | |
| 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 | Microsoft Surface Duo 2 | Oppo A3s |
| Camera | 12 MP, f/1.7, 27mm (wide), 1.4µm, dual pixel PDAF, OIS 12 MP, f/2.4, 51mm (telephoto), 1.0µm, PDAF, OIS, 2x optical zoom 16 MP, f/2.2, 13mm (ultrawide), 1.0µm TOF 3D, (depth) | |
| Features | Dual-LED dual-tone flash, HDR, panorama | |
| Video | 4K@30/60fps, 1080p@30/60/120/240fps, gyro-EIS, HDR | |
| Selfie camera | Microsoft Surface Duo 2 | Oppo A3s |
| Camera | 12 MP, f/2.0, 24mm (wide), 1.0µm | |
| Video | 1080p@30fps | |
| Connectivity | Microsoft Surface Duo 2 | 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 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 42, 46, 48, 66, 71 | 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) | |
| 5G Network | 1, 2, 3, 5, 7, 20, 25, 28, 38, 41, 66, 71, 77, 78, 79 SA/NSA/Sub6 - International | |
| Bluetooth | 5.1, A2DP, LE, aptX Adaptive | 4.2, A2DP, LE |
| Edge | Yes | |
| CDMA | 1, 2, 3, 5, 7, 20, 25, 28, 38, 41, 66, 71, 77, 78, 79, 257, 260, 261 SA/NSA/Sub6/mmWave - USA | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, QZSS, BDS | Yes, with A-GPS |
| NFC | Yes | |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (5CA) Cat20 2000/150 Mbps, 5G 6 Gbps DL | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | USB Type-C 3.2, DisplayPort | microUSB 2.0, USB On-The-Go |
| Technology | GSM / HSPA / LTE / 5G | |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot | |
| Camera | Microsoft Surface Duo 2 | 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 | Microsoft Surface Duo 2 | Oppo A3s |
| Loudspeaker | Yes, with stereo speakers | |
| 3.5 mm Jack | No | Yes |
| Radio | No | FM radio |
| Design | Microsoft Surface Duo 2 | Oppo A3s |
| Body build | Glass front (Gorilla Glass Victus), glass back (Gorilla Glass) | |
| Colors | Glacier, Obsidian | Red, Dark Purple |
| Body | Stylus support | |
| Dimensions | Unfolded: 184.5 x 145.2 x 5.5 mm Folded: 145.2 x 92.1 x 11 mm | 156.2 x 75.6 x 8.2 mm |
| Weight | 284 g (10.02 oz) | 168 g |
| SIM | Nano-SIM, eSIM | |
| Battery | Microsoft Surface Duo 2 | Oppo A3s |
| Type | Li-Po 4449 mAh, non-removable | |
| Charging | Fast charging 23W | |
| Battery capacity | 4230 mAh, Non-removable Li-Ion | |
| Other | Microsoft Surface Duo 2 | Oppo A3s |
| Release date | 2018, July | |
| Sensors | Accelerometer, proximity, compass | |
| Features | Microsoft Surface Duo 2 | Oppo A3s |
| Sensors | Fingerprint (side-mounted), dual accelerometer, dual gyro, dual proximity, dual compass |
