Redmi 9 vs vivo Y31 5G
20Performance20
29.6Display39.6
20.5Camera29
39Battery66.2
28Features73.3
4 spec wins — Redmi 99 spec wins — vivo Y31 5G
InnoReviews verdict
vivo Y31 5G wins this phone face-off, 40.3 to 26.6, pulling ahead mainly in features (+45) and battery (+27). Redmi 9 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Redmi 9
- 49% higher Pixel density: 394 ppi vs 264 ppi
- Has NFC — the other doesn't
- Has 3.5mm jack — the other doesn't
Reasons to pick the vivo Y31 5G
- Stronger display score: 40 vs 30
- Stronger camera score: 29 vs 21
- Stronger battery score: 66 vs 39
- Stronger features score: 73 vs 28
- 285% higher Main camera: 50 MP vs 13 MP
Display
| Spec | Redmi 9 | vivo Y31 5G |
|---|---|---|
| Screen size | 6.53 ″ | 6.68 ″+2% |
| Panel type | IPS LCD | IPS LCD |
| Resolution | 2340x1080 | 720x1608 |
| Pixel density | 394 ppi+49% | 264 ppi |
| Refresh rate | 60 Hz | 120 Hz+100% |
| Peak brightness | — | 1,000 nits |
Performance
| Spec | Redmi 9 | vivo Y31 5G |
|---|---|---|
| Chipset | MediaTek Helio G80 | Qualcomm Snapdragon 4 Gen 2 |
| AnTuTu | 260,000 | — |
| Geekbench 6 (single) | 410Bottom 3% | — |
| Geekbench 6 (multi) | 1,320Bottom 2% | — |
| RAM (max) | 4 GB | 6 GB+50% |
| Storage options | 32GB / 64GB | 128GB |
| Storage type | eMMC 5.1 | eMMC 5.1 |
Camera
| Spec | Redmi 9 | vivo Y31 5G |
|---|---|---|
| Main camera | 13 MP | 50 MP+285% |
| Main aperture | f/2.2 | f/1.8 |
| Ultra-wide | 8 MP | — |
| Max video | 1080p@30fps | 1080p@30fps |
| Front camera | 8 MP | 8 MP |
| OIS | No | No |
Battery
| Spec | Redmi 9 | vivo Y31 5G |
|---|---|---|
| Capacity | 5,020 mAh | 6,500 mAh+29% |
| Wired charging | 18 W | 44 W+144% |
Design
| Spec | Redmi 9 | vivo Y31 5G |
|---|---|---|
| Weight | 198 g+5% | 209 g |
| Thickness | 9.1 mm | 8.4 mm+8% |
| IP rating | — | IP68/IP69 |
| Frame material | Plastic | — |
Connectivity
| Spec | Redmi 9 | vivo Y31 5G |
|---|---|---|
| 5G | No | Yes |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | 5.0 | 4.2 |
| NFC | Yes | No |
| USB | USB-C 2.0 | USB-C 2.0 |
| eSIM | No | No |
Software
| Spec | Redmi 9 | vivo Y31 5G |
|---|---|---|
| OS at launch | Android 10 (MIUI 12) | Android 15 (Funtouch OS 15) |
| OS update pledge | 2 years | — |
Audio
| Spec | Redmi 9 | vivo Y31 5G |
|---|---|---|
| Stereo speakers | No | Yes |
| 3.5mm jack | Yes | No |