| vivo X90s |
Oppo A3s |
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| Hardware and OS | vivo X90s | Oppo A3s |
| Operating system | Android 13, OriginOS 3 | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Octa-core (1x3.35 GHz Cortex-X3 & 3x3.0 GHz Cortex-A715 & 4x2.0 GHz Cortex-A510) | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | Mediatek Dimensity 9200 (4 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Immortalis-G715 MC11 | Adreno 506 |
| Internal memory | 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM | 16 GB, 2 GB RAM |
| External memory | No | microSD, up to 256 GB (dedicated slot) |
| Display | vivo X90s | Oppo A3s |
| Type | AMOLED, 1B colors, 120Hz, HDR10 , 1300 nits (peak) | IPS LCD |
| Size | 6.78 inches, 111.0 cm2(~90.9% screen-to-body ratio) | 6.2" inc |
| Resolution | 1260 x 2800 pixels, 20:9 ratio | 720 x 1520 px |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 81.2% | |
| Display area | 95.9 cm2 | |
| Display aspect ratio | 19:9 (height:width) | |
| Pixel Density | 271 PPI | |
| Colors | 16M | |
| Connectivity | vivo X90s | Oppo A3s |
| 5G Network | 1, 3, 5, 8, 28, 41, 77, 88 SA/NSA | |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6/7, tri-band | |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Infrared port | Yes | |
| 3G Network | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 2100 |
| NFC | Yes | |
| 4G Network | 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41 | LTE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot | |
| CDMA | CDMA 800 | |
| Network | GSM / HSPA / LTE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Technology | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G | |
| Bluetooth | 5.3, A2DP, LE, aptX HD | 4.2, A2DP, LE |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS | |
| Speed | HSPA, LTE-A, 5G | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | USB Type-C 2.0, OTG | microUSB 2.0, USB On-The-Go |
| Main Camera | vivo X90s | Oppo A3s |
| Camera | 50 MP, f/1.8, (wide), 1/1.49", 1.0µm, PDAF, Laser AF, OIS 12 MP, f/2.0, 50mm (telephoto), 1/2.93", 1.22µm, AF, 2x optical zoom 12 MP, f/2.0, 16mm (ultrawide), 1/2.93", 1.22µm, AF | |
| Features | Zeiss optics, Zeiss T* lens coating, Pixel Shift, dual-LED dual-tone flash, HDR, panorama | |
| Video | 4K@30/60fps, 1080p@30/60fps, gyro-EIS | |
| Selfie camera | vivo X90s | Oppo A3s |
| Camera | 32 MP, f/2.5, 24mm (wide), 1/2.8", 0.8µm | |
| Features | HDR | |
| Video | 1080p@30/60fps | |
| Camera | vivo X90s | 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 | vivo X90s | Oppo A3s |
| Multimedia | 24-bit/192kHz audio | |
| Loudspeaker | Yes, with stereo speakers | |
| 3.5 mm Jack | No | Yes |
| Radio | FM radio | |
| Design | vivo X90s | Oppo A3s |
| Colors | Black, White, Red, Green | Red, Dark Purple |
| Body | IP64 dust/water resistant | |
| Dimensions | 164.1 x 74.4 x 8.5 mm or 8.9 mm | 156.2 x 75.6 x 8.2 mm |
| Body build | Glass front, glass back or eco leather back | |
| Weight | 197.5 / 201.5 / 202.2 / 203.5 g (6.98 oz) | 168 g |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Battery | vivo X90s | Oppo A3s |
| Type | Li-Po 4810 mAh, non-removable | |
| Charging | 120W wired, 50% in 8 min (advertised) Reverse wired | |
| Battery capacity | 4230 mAh, Non-removable Li-Ion | |
| Other | vivo X90s | Oppo A3s |
| Release date | 2018, July | |
| Sensors | Accelerometer, proximity, compass | |
| Features | vivo X90s | Oppo A3s |
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass, color spectrum |
