On this page we compare specs Vivo Y31 2021 Qualcomm Snapdragon 662 with Oppo A3s Octa-core 1.8 GHz Cortex-A53, we compare external dimensions, compare screens and performance, the amount of RAM and memory for storing media data, battery capacity and characteristics of photo cameras, compare the presence of various sensors and functions.
| Hardware and OS | Vivo Y31 2021 | Oppo A3s |
|---|
| Operating system | Android v11 | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Octa core (2 GHz, Quad core, Kryo 260 1.8 GHz, Quad core, Kryo 260) | Octa-core 1.8 GHz Cortex-A53 |
| Custom UI | Funtouch OS | |
| Chipset | Qualcomm Snapdragon 662 | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Adreno 610 | Adreno 506 |
| Internal memory | | 16 GB, 2 GB RAM |
| External memory | | microSD, up to 256 GB (dedicated slot) |
| Internal Storage | 128 GB | |
| Expandable memory | Yes, Upto 1TB | |
| RAM | 6 GB | |
| Display | Vivo Y31 2021 | Oppo A3s |
|---|
| Type | | IPS LCD |
| Size | | 6.2" inc |
| Resolution | | 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 Y31 2021 | Oppo A3s |
|---|
| 2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | | HSDPA 850 / 900 / 2100 |
| 4G Network | | LTE |
| Wi-Fi | Yes, Wi-Fi 802.11, b/g/n/n 5GHz | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| Network | | GSM / HSPA / LTE |
| SIM size | SIM1: Nano, SIM2: Nano | |
| SIM card | | Dual SIM (Nano-SIM, dual stand-by) |
| Dual SIM | Dual SIM, GSM GSM | |
| Bluetooth | Yes, v5.0 | 4.2, A2DP, LE |
| Edge | | Yes |
| Network support | 4G , 3G, 2G | |
| GPRS | | Yes |
| USB connectivity | Mass storage device, USB charging | |
| GPS | Yes, with A-GPS, Glonass | Yes, with A-GPS |
| USB TYPE-C | Yes | |
| Speed | | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | | microUSB 2.0, USB On-The-Go |
| Camera | Vivo Y31 2021 | Oppo A3s |
|---|
| Aperture | F2.0 | |
| Autofocus | Yes | |
| Camera features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Image | 8000 x 6000 Pixels | |
| Flash | Yes, LED Flash | |
| Front camera | 16 MP | |
| Front camera resolution | 16 MP f/2.0, Wide Angle Primary Camera | |
| Video recording | 1920x1080 @ 30 fps | |
| Main camera | 48 MP 2 MP 2 MP | 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 Y31 2021 | Oppo A3s |
|---|
| Audio jack | 3.5 MM | |
| FM radio | Yes | |
| Loudspeaker | Yes | |
| 3.5 mm Jack | | Yes |
| Radio | | FM radio |
| Design | Vivo Y31 2021 | Oppo A3s |
|---|
| Height | 163.8 mm | |
| Colors | Ocean Blue, Racing Black | Red, Dark Purple |
| Width | 75.3 mm | |
| Dimensions | | 156.2 x 75.6 x 8.2 mm |
| Thickness | 8.3 mm | |
| Weight | 188 grams | 168 g |
| Battery | Vivo Y31 2021 | Oppo A3s |
|---|
| Capacity | 5000 mAh | |
| Type | Li-Polymer | |
| User replaceable | No | |
| Quick charging | Yes, Fast, 18W: 70 % in 64 minutes | |
| Battery capacity | | 4230 mAh, Non-removable Li-Ion |
| Features | Vivo Y31 2021 | Oppo A3s |
|---|
| Fingerprint sensor position | Side | |
| Fingerprint sensor | Yes | |
| Other sensors | Light sensor, Proximity sensor, Accelerometer, Compass | |
| Other | Vivo Y31 2021 | Oppo A3s |
|---|
| Release date | | 2018, July |
| Sensors | | Accelerometer, proximity, compass |
