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| Spec | Vivo Y31 Vivo | Vivo X100 Ultra Vivo |
|---|---|---|
| AI Engine | — | Qualcomm AI Engine |
| Always-On Display | — | Yes |
| Audio | — | Hi-Res Audio |
| Audio Jack | 3.5mm | No |
| Battery | 5000mAh | 5500mAh |
| Battery Type | — | Silicon Carbon |
| Bluetooth | 5.0 | 5.4 |
| Build | Plastic Back | Glass Back |
| Charging | 18W Fast Charging | 80W FlashCharge |
| Chipset | Snapdragon 662 | Snapdragon 8 Gen 3 |
| Colors | Racing Black, Ocean Blue | Titanium, White, Black |
| CPU | Octa-core | Octa-core |
| Depth Sensor | 2MP | — |
| Dimensions | — | 164.1 x 75.6 x 9.2 mm |
| Display | 6.58-inch IPS LCD | 6.78-inch LTPO AMOLED |
| Display Type | — | ZEISS Master Display |
| Face Unlock | Yes | Yes |
| Fingerprint | Side Mounted | Ultrasonic Under Display |
| Frame | — | Aluminum |
| Front Camera | 16MP | 50MP |
| GPS | GPS, GLONASS, GALILEO | GPS, GLONASS, GALILEO, BDS, NavIC |
| GPU | Adreno 610 | Adreno 750 |
| HDR | — | HDR10+, Dolby Vision |
| Infrared Port | — | Yes |
| Macro Camera | 2MP | — |
| Main Camera | 48MP | 50MP 1-inch Sony LYT-900 OIS |
| Memory Card | microSDXC | No |
| Network | 2G,3G,4G | 2G,3G,4G,5G |
| NFC | — | Yes |
| OS | Android 11 | Android 14 |
| Peak Brightness | — | 3000 nits |
| Periscope Camera | — | 200MP ZEISS APO Telephoto |
| Pixel Density | — | 517 ppi |
| Process | 11nm | — |
| Protection | — | Armor Glass |
| RAM | 6GB / 8GB | 12GB / 16GB |
| RAM Type | — | LPDDR5X |
| Rear Camera | 48MP + 2MP + 2MP | 50MP + 50MP + 200MP |
| Refresh Rate | 60Hz | 1-120Hz |
| Release Date | 2021 | May 2024 |
| Resolution | 2408 x 1080 | 1440 x 3200 |
| Reverse Charging | — | Yes |
| SIM | Dual Nano SIM | Dual Nano SIM |
| Speakers | — | Stereo Speakers |
| Status | Available | Available |
| Storage | 128GB | 256GB / 512GB / 1TB |
| Storage Type | — | UFS 4.0 |
| Touch Sampling Rate | — | 300Hz |
| UI | Funtouch OS 11 | OriginOS 4 |
| Ultra Wide Camera | — | 50MP |
| USB | USB Type-C | USB Type-C 3.2 |
| Video Recording | 1080p | 8K, 4K 120fps |
| Water Resistance | — | IP68/IP69 |
| Weight | 188g | 229g |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 7 |
| Wireless Charging | — | 30W |