Both Oppo A6s 5G and Vivo Y31 5G comes with same RAM. In terms of display resolution, Vivo Y31 5G has better resolution of 1608 x 720 than Oppo A6s 5G which has resolution of 1570 x 720. Both have the same amount of internal memory.
| Name | Oppo A6s 5G | Vivo Y31 5G |
| RAM | 4 GB | 4 GB |
|---|---|---|
| Display | 6.75 in | 6.68 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 6500 mAh | 6500 mAh |
| Camera | 50 MP Dual | 50 MP |
| Price | Rs. 18999 | Rs. 18999 |
The launch Date of the first phone is March 17, 2026. The cost of Oppo A6s 5G is Rs. 18999. The launch Date of the second phone is September 15, 2025. The cost of Vivo Y31 5G is Rs. 18999.
Vivo Y31 5G has screen size of 6.68 inches which falls short to Oppo A6s 5G's 6.75 inch screen. Oppo A6s 5G has LCD Screen type where as Vivo Y31 5G has IPS Screen type. Vivo's phone has display density of 264 PPI & OPPO's phone has only 256 PPI display density. In terms of screen to body ratio, OPPO's phone has better screen to body ratio of ~ 85.2% than Vivo's phone ~ 84%. Oppo A6s 5G has 19:9 aspect ratio where as Vivo Y31 5G has 20:9 aspect ratio.
Both mobiles come with 4 GB RAM and both have same Internal Memory of 128 GB.
They both have the same 50 MP Dual Rear Camera. Vivo Y31 5G will be better choice if you're looking to click lot of selfies as it has better 8 MP Front Camera in comparison to Oppo A6s 5G's 5 MP Front Camera.
Both the phones run on Android Operating System Version 15.
| Name | Oppo A6s 5G | Vivo Y31 5G |
| General | ||
| Country of Origin | India | |
| Model | CPH2789 | Y31 |
| Sim Type | Dual Sim, GSM+GSM (Hybrid Slot) | Dual Sim, GSM+GSM (Hybrid Slot) |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | March 17, 2026 | September 15, 2025 |
| In The Box | USB Cable, SIM Tray Ejector, Phone Case, Screen Protector (Applied), Power Adapter | |
| Design | ||
| Dimensions | 78.5 x 166.6 x 8.6 mm | 77 x 166.1 x 8.4 mm |
| Weight | 212 g | 209 g |
| Colors | Aurora Gold, Plum Purple | Rose Red, Diamond Green |
| Display | ||
| Type | Color LCD Screen (16.7M) | Color IPS Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.75 inches, 720 x 1570 pixels, 120 Hz | 6.68 inches, 720 x 1608 pixels, 120 Hz |
| Aspect Ratio | 19:9 | 20:9 |
| PPI | ~ 256 PPI | ~ 264 PPI |
| Screen to Body Ratio | ~ 85.2% | ~ 84% |
| Glass Type | AGC DT-Star D+ | Guardian Glass (ion-strengthened) |
| Brightness | 1125 nits (HBM) | 1000nts |
| Notch | Yes, Punch Hole | Yes, Water Drop Notch |
| Memory | ||
| RAM | 4 GB | 4 GB |
| RAM Type | LPDDR4X | |
| Expandable RAM | Upto 8 GB Extra Virtual RAM | Upto 4 GB Extra Virtual RAM |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 2.2 | eMMC 5.1 |
| Card Slot | Yes, (Hybrid Slot) | Yes, (Hybrid Slot) |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| VoLTE | Yes, Dual Stand-By | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.4 | Yes, v4.2 |
| USB | Yes, USB-C v2.0 | Yes, USB-C v2.0 |
| USB Features | USB Tethering, USB on-the-go, USB Charging, USB Storage | USB Tethering, USB on-the-go, USB Charging |
| Extra | ||
| GPS | Beidou, GPS, GLONASS, Galileo, QZSS | with A-GPS, BeiDou, GLONASS, Galileo |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Proximity, Compass | Accelerometer, Proximity, Compass |
| 3.5mm Headphone Jack | Yes | No |
| AI Features | Ai Erase | SMart AI, Ai Erase, Ai Photo Enhance, Circle to Search |
| Water Resistance | Yes, 1.5 m upto 30 min | |
| Splash Resistant | Yes | |
| IP Rating | IP64 | IP68 |
| Dust Resistant | Yes | Yes |
| Camera | ||
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) | 50 MP ƒ/1.8 (Wide Angle) |
| Auto Focus | Yes | Yes |
| Features | HDR, panorama | Ring- panorama |
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 5 MP ƒ/2.2 (Wide Angle) Punch Hole | 8 MP ƒ/2 (Wide Angle) |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v15 | Android v15 |
| Custom UI | ColorOS 15.0 | |
| Chipset | Mediatek Dimensity 6300 | Qualcomm Snapdragon 4 Gen2 |
| CPU | 2.4 GHz, Octa Core Processor | 2.2 GHz, Octa Core Processor |
| Core Details | 4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55 | 2x Performance Cores@2.2GHz & 6x Efficiency Cores@2GHz |
| Fabrication Node | 4nm | |
| GPU | Mali-G57 MC2 | Adreno 613 |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | WAV, MP3, MP2, AMR-NB, MIDI, Vorbis, APE, FLAC, OGG, M4A |
| Video | Yes | MP4, 3GP, AVI, TS, MKV, FLV |
| FM Radio | No | No |
| Speaker Type | Dual Stereo | |
| Document Reader | Yes | |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 6500 mAh | 6500 mAh |
| Fast Charging | Yes, 45W SUPERVOOC Flash Charge | Yes, 44W |
| Reverse Charging | Yes | |