REDMI K90 Max vs vivo X100 Ultra
64.4Performance64.4
79.4Display67.6
43.4Camera75.8
83.2Battery75.5
86.7Features86.7
7 spec wins — REDMI K90 Max3 spec wins — vivo X100 Ultra
InnoReviews verdict
vivo X100 Ultra wins this phone face-off, 71.8 to 69.2, pulling ahead mainly in camera (+32). REDMI K90 Max 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 Max
- Stronger display score: 79 vs 68
- Stronger battery score: 83 vs 76
- 55% higher capacity: 8,550 mAh vs 5,500 mAh
- 38% higher Refresh rate: 165 Hz vs 120 Hz
- 25% higher Wired charging: 100 W vs 80 W
Reasons to pick the vivo X100 Ultra
- Stronger camera score: 76 vs 43
- 525% higher ultra-wide: 50 MP vs 8 MP
- 150% higher Front camera: 50 MP vs 20 MP
- 16% higher Pixel density: 517 ppi vs 447 ppi
Display
| Spec | REDMI K90 Max | vivo X100 Ultra |
|---|---|---|
| Screen size | 6.83 ″+1% | 6.78 ″ |
| Panel type | AMOLED | LTPO AMOLED |
| Resolution | 1280x2772 | 1440x3200 |
| Pixel density | 447 ppi | 517 ppi+16% |
| Refresh rate | 165 Hz+38% | 120 Hz |
| Peak brightness | 3,500 nits+17% | 3,000 nits |
| Screen-to-body | — | 89.8 % |
Performance
| Spec | REDMI K90 Max | vivo X100 Ultra |
|---|---|---|
| Chipset | MediaTek Dimensity 9500 | Qualcomm Snapdragon 8 Gen 3 |
| RAM (max) | 16 GB | 16 GB |
| Storage options | 256/512GB/1TB | 256/512GB/1TB |
| Storage type | UFS 4.1 | UFS 4.0 |
Camera
| Spec | REDMI K90 Max | vivo X100 Ultra |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.68 | f/1.75 |
| Ultra-wide | 8 MP | 50 MP+525% |
| Telephoto | — | 200 MP |
| Optical zoom | — | 3.7 x |
| Max video | 8K@30fps | 8K@30fps |
| Front camera | 20 MP | 50 MP+150% |
| OIS | Yes | Yes |
Battery
| Spec | REDMI K90 Max | vivo X100 Ultra |
|---|---|---|
| Capacity | 8,550 mAh+55% | 5,500 mAh |
| Wired charging | 100 W+25% | 80 W |
| Wireless charging | — | 30 W |
| Active use endurance | — | 12.9 h |
Design
| Spec | REDMI K90 Max | vivo X100 Ultra |
|---|---|---|
| Weight | 227 g+1% | 229 g |
| Thickness | 8.2 mm+11% | 9.2 mm |
| IP rating | IP66/IP68/IP69 | IP68/IP69 |
| Frame material | — | Aluminum |
Connectivity
| Spec | REDMI K90 Max | vivo X100 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | 5.4 | 5.4 |
| NFC | Yes | Yes |
| USB | USB-C | USB-C 3.2 |
| eSIM | No | No |
Software
| Spec | REDMI K90 Max | vivo X100 Ultra |
|---|---|---|
| OS at launch | Android 16 (HyperOS 3) | Android 14 (OriginOS 4) |
Audio
| Spec | REDMI K90 Max | vivo X100 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | — | No |