Redmi K90 vs vivo Y31 5G
84.3Performance20
65.4Display39.6
53.1Camera29
83.2Battery66.2
86.7Features73.3
10 spec wins — Redmi K901 spec wins — vivo Y31 5G
InnoReviews verdict
Redmi K90 wins this phone face-off, 74.3 to 40.3, pulling ahead mainly in performance (+64) and display (+26). 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 K90
- Stronger performance score: 84 vs 20
- Stronger display score: 65 vs 40
- Stronger camera score: 53 vs 29
- Stronger battery score: 83 vs 66
- Stronger features score: 87 vs 73
Reasons to pick the vivo Y31 5G
No decisive spec advantages — this side competes on price and preference.
Display
| Spec | Redmi K90 | vivo Y31 5G |
|---|---|---|
| Screen size | 6.59 ″ | 6.68 ″+1% |
| Panel type | AMOLED | IPS LCD |
| Resolution | 2510x1156 | 720x1608 |
| Pixel density | 419 ppi+59% | 264 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 3,500 nits+250% | 1,000 nits |
| Screen-to-body | 89.8 % | — |
Performance
| Spec | Redmi K90 | vivo Y31 5G |
|---|---|---|
| Chipset | Snapdragon 8 Elite | Qualcomm Snapdragon 4 Gen 2 |
| AnTuTu | 3,106,623Top 11% | — |
| AnTuTu 11 (CPU) | 872,376Top 15% | — |
| AnTuTu 11 (GPU) | 1,143,259Top 13% | — |
| AnTuTu 11 (Memory) | 462,601Top 6% | — |
| AnTuTu 11 (UX) | 628,387Top 13% | — |
| RAM (max) | 16 GB+167% | 6 GB |
| Storage options | 256GB / 512GB / 1TB | 128GB |
| Storage type | UFS | eMMC 5.1 |
Camera
| Spec | Redmi K90 | vivo Y31 5G |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.88 | f/1.8 |
| Ultra-wide | 8 MP | — |
| Telephoto | 50 MP | — |
| Optical zoom | 2.5 x | — |
| Max video | 8K@30fps | 1080p@30fps |
| Front camera | 20 MP+150% | 8 MP |
| OIS | Yes | No |
Battery
| Spec | Redmi K90 | vivo Y31 5G |
|---|---|---|
| Capacity | 7,100 mAh+9% | 6,500 mAh |
| Wired charging | 100 W+127% | 44 W |
Design
| Spec | Redmi K90 | vivo Y31 5G |
|---|---|---|
| Weight | 206 g+1% | 209 g |
| Thickness | 8 mm+5% | 8.4 mm |
| IP rating | IP68 | IP68/IP69 |
| Frame material | Aluminum | — |
Connectivity
| Spec | Redmi K90 | 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 K90 | vivo Y31 5G |
|---|---|---|
| OS at launch | Android 16 (HyperOS 3) | Android 15 (Funtouch OS 15) |
Audio
| Spec | Redmi K90 | vivo Y31 5G |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |