Redmi K70 Ultra vs vivo Y31 5G
100Performance20
75.1Display39.6
43.4Camera29
71.8Battery66.2
86.7Features73.3
8 spec wins — Redmi K70 Ultra3 spec wins — vivo Y31 5G
InnoReviews verdict
Redmi K70 Ultra wins this phone face-off, 76.7 to 40.3, pulling ahead mainly in performance (+80) and display (+35). vivo Y31 5G still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Redmi K70 Ultra
- Stronger performance score: 100 vs 20
- Stronger display score: 75 vs 40
- Stronger camera score: 43 vs 29
- Stronger battery score: 72 vs 66
- Stronger features score: 87 vs 73
Reasons to pick the vivo Y31 5G
- 18% higher capacity: 6,500 mAh vs 5,500 mAh
Display
| Spec | Redmi K70 Ultra | vivo Y31 5G |
|---|---|---|
| Screen size | 6.67 ″ | 6.68 ″ |
| Panel type | OLED | IPS LCD |
| Resolution | 1220x2712 | 720x1608 |
| Pixel density | 446 ppi+69% | 264 ppi |
| Refresh rate | 144 Hz+20% | 120 Hz |
| Peak brightness | 4,000 nits+300% | 1,000 nits |
| Screen-to-body | 89.1 % | — |
Performance
| Spec | Redmi K70 Ultra | vivo Y31 5G |
|---|---|---|
| Chipset | MediaTek Dimensity 9300+ | Qualcomm Snapdragon 4 Gen 2 |
| RAM (max) | 24 GB+300% | 6 GB |
| Storage options | 256/512GB/1TB | 128GB |
| Storage type | UFS 4.0 | eMMC 5.1 |
Camera
| Spec | Redmi K70 Ultra | vivo Y31 5G |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.7 | f/1.8 |
| Ultra-wide | 8 MP | — |
| Max video | 8K@30fps | 1080p@30fps |
| Front camera | 20 MP+150% | 8 MP |
| OIS | Yes | No |
Battery
| Spec | Redmi K70 Ultra | vivo Y31 5G |
|---|---|---|
| Capacity | 5,500 mAh | 6,500 mAh+18% |
| Wired charging | 120 W+173% | 44 W |
| Wireless charging | 0 W | — |
Design
| Spec | Redmi K70 Ultra | vivo Y31 5G |
|---|---|---|
| Weight | 211 g | 209 g+1% |
| Thickness | 8.4 mm | 8.4 mm |
| IP rating | IP68 | IP68/IP69 |
| Frame material | Aluminum | — |
Connectivity
| Spec | Redmi K70 Ultra | vivo Y31 5G |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 5 |
| Bluetooth | 5.4 | 4.2 |
| NFC | Yes | No |
| USB | USB-C | USB-C 2.0 |
| eSIM | No | No |
Software
| Spec | Redmi K70 Ultra | vivo Y31 5G |
|---|---|---|
| OS at launch | Android 14 (HyperOS) | Android 15 (Funtouch OS 15) |
Audio
| Spec | Redmi K70 Ultra | vivo Y31 5G |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |