REDMI K90 Ultra vs vivo V40
64.4Performance26.1
78.7Display73
43.4Camera58.6
83.2Battery78.4
86.7Features100
6 spec wins — REDMI K90 Ultra7 spec wins — vivo V40
InnoReviews verdict
REDMI K90 Ultra wins this phone face-off, 69.1 to 59.8, pulling ahead mainly in performance (+38) and display (+6). vivo V40 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 Ultra
- Stronger performance score: 64 vs 26
- Stronger display score: 79 vs 73
- Stronger battery score: 83 vs 78
- 55% higher capacity: 8,550 mAh vs 5,500 mAh
- 38% higher Refresh rate: 165 Hz vs 120 Hz
Reasons to pick the vivo V40
- Stronger camera score: 59 vs 43
- Stronger features score: 100 vs 87
- 525% higher ultra-wide: 50 MP vs 8 MP
- 150% higher Front camera: 50 MP vs 20 MP
- 29% higher Peak brightness: 4,500 nits vs 3,500 nits
Display
| Spec | REDMI K90 Ultra | vivo V40 |
|---|---|---|
| Screen size | 6.83 ″+1% | 6.78 ″ |
| Panel type | AMOLED | AMOLED |
| Resolution | 1280x2772 | 1260x2800 |
| Pixel density | 447 ppi | 452 ppi+1% |
| Refresh rate | 165 Hz+38% | 120 Hz |
| Peak brightness | 3,500 nits | 4,500 nits+29% |
| Screen-to-body | 90.3 % | 90.1 % |
Performance
| Spec | REDMI K90 Ultra | vivo V40 |
|---|---|---|
| Chipset | Snapdragon 8 Elite | Qualcomm Snapdragon 7 Gen 3 |
| Geekbench 6 (single) | — | 1,178Bottom 47% |
| Geekbench 6 (multi) | — | 3,208Bottom 44% |
| RAM (max) | 16 GB+33% | 12 GB |
| Storage options | 256/512GB | 128/256/512GB |
| Storage type | UFS 4.1 | UFS 2.2 |
Camera
| Spec | REDMI K90 Ultra | vivo V40 |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.7 | f/1.88 |
| Ultra-wide | 8 MP | 50 MP+525% |
| Max video | 8K@30fps | 4K@30fps |
| Front camera | 20 MP | 50 MP+150% |
| OIS | Yes | Yes |
Battery
| Spec | REDMI K90 Ultra | vivo V40 |
|---|---|---|
| Capacity | 8,550 mAh+55% | 5,500 mAh |
| Wired charging | 100 W+25% | 80 W |
| Active use endurance | — | 15.1 h |
Design
| Spec | REDMI K90 Ultra | vivo V40 |
|---|---|---|
| Weight | 227 g | 190 g+16% |
| Thickness | 8.2 mm | 7.6 mm+8% |
| IP rating | IP68/IP69 | IP68/IP69 |
| Frame material | Aluminum | Plastic |
Connectivity
| Spec | REDMI K90 Ultra | vivo V40 |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 7 | — |
| Bluetooth | 5.4 | 5.4 |
| NFC | Yes | Yes |
| USB | USB-C | USB-C 2.0 |
| eSIM | No | Yes |
Software
| Spec | REDMI K90 Ultra | vivo V40 |
|---|---|---|
| OS at launch | Android 16 (HyperOS 3) | Android 14 (Funtouch OS 14) |
Audio
| Spec | REDMI K90 Ultra | vivo V40 |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |