POCO F9 Ultra vs vivo Y31d
64.4Performance28.9
84.3Display42.5
78.2Camera29
92Battery70.9
78.7Features46.7
13 spec wins — POCO F9 Ultra2 spec wins — vivo Y31d
InnoReviews verdict
POCO F9 Ultra wins this phone face-off, 78.1 to 41.8, pulling ahead mainly in camera (+49) and display (+42). vivo Y31d still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the POCO F9 Ultra
- Stronger performance score: 64 vs 29
- Stronger display score: 84 vs 43
- Stronger camera score: 78 vs 29
- Stronger battery score: 92 vs 71
- Stronger features score: 79 vs 47
Reasons to pick the vivo Y31d
No decisive spec advantages — this side competes on price and preference.
Display
| Spec | POCO F9 Ultra | vivo Y31d |
|---|---|---|
| Screen size | 6.9 ″+2% | 6.75 ″ |
| Panel type | AMOLED | IPS LCD |
| Resolution | 2608x1200 | 720x1570 |
| Pixel density | 416 ppi+63% | 256 ppi |
| Refresh rate | 185 Hz+54% | 120 Hz |
| Peak brightness | 4,500 nits+260% | 1,250 nits |
| Screen-to-body | — | 85.3 % |
Performance
| Spec | POCO F9 Ultra | vivo Y31d |
|---|---|---|
| Chipset | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 6s 4G Gen 2 |
| RAM (max) | 16 GB+100% | 8 GB |
| Storage options | 256GB / 512GB / 1TB | 128/256GB |
| Storage type | UFS 4.1 | UFS 2.2 |
Camera
| Spec | POCO F9 Ultra | vivo Y31d |
|---|---|---|
| Main camera | 200 MP+300% | 50 MP |
| Main aperture | f/1.68 | f/2.0 |
| Ultra-wide | 50 MP | — |
| Telephoto | 50 MP | — |
| Optical zoom | 5 x | — |
| Max video | 8K@30fps | 1080p@30fps |
| Front camera | 32 MP+300% | 8 MP |
| OIS | Yes | No |
Battery
| Spec | POCO F9 Ultra | vivo Y31d |
|---|---|---|
| Capacity | 8,050 mAh+12% | 7,200 mAh |
| Wired charging | 100 W+127% | 44 W |
| Wireless charging | 50 W | — |
Design
| Spec | POCO F9 Ultra | vivo Y31d |
|---|---|---|
| Weight | 235 g | 219 g+7% |
| Thickness | 8.7 mm | 8.4 mm+4% |
| IP rating | IP68 | IP68/IP69 |
| Frame material | — | Plastic |
Connectivity
| Spec | POCO F9 Ultra | vivo Y31d |
|---|---|---|
| 5G | Yes | No |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 5 |
| Bluetooth | 6.0 | 5.1 |
| NFC | Yes | No |
| USB | USB-C 3.2 | USB-C 2.0 |
| eSIM | Yes | No |
Software
| Spec | POCO F9 Ultra | vivo Y31d |
|---|---|---|
| OS at launch | Android 16 (HyperOS 3) | Android 16 (OriginOS 6) |
| OS update pledge | 4 years | — |
Audio
| Spec | POCO F9 Ultra | vivo Y31d |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |