REDMI K90 Ultra vs Vivo X Fold6
64.4Performance76
78.7Display74.6
43.4Camera71.8
83.2Battery86.9
86.7Features86.7
6 spec wins — REDMI K90 Ultra4 spec wins — Vivo X Fold6
InnoReviews verdict
Vivo X Fold6 wins this phone face-off, 78.1 to 69.1, pulling ahead mainly in camera (+28) and performance (+12). REDMI K90 Ultra 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 display score: 79 vs 75
- 38% higher Refresh rate: 165 Hz vs 120 Hz
- 25% higher Wired charging: 100 W vs 80 W
- 22% higher capacity: 8,550 mAh vs 7,000 mAh
- 13% lower thickness: 8.2 mm vs 9.4 mm
Reasons to pick the Vivo X Fold6
- Stronger performance score: 76 vs 64
- Stronger camera score: 72 vs 43
- Stronger battery score: 87 vs 83
- 525% higher ultra-wide: 50 MP vs 8 MP
- 300% higher Main camera: 200 MP vs 50 MP
Display
| Spec | REDMI K90 Ultra | Vivo X Fold6 |
|---|---|---|
| Screen size | 6.83 ″ | 8.02 ″+17% |
| Panel type | AMOLED | Foldable LTPO AMOLED |
| Resolution | 1280x2772 | 2312x2504 |
| Pixel density | 447 ppi+5% | 425 ppi |
| Refresh rate | 165 Hz+38% | 120 Hz |
| Peak brightness | 3,500 nits | 5,000 nits+43% |
| Screen-to-body | 90.3 % | 90.3 % |
Performance
| Spec | REDMI K90 Ultra | Vivo X Fold6 |
|---|---|---|
| Chipset | Snapdragon 8 Elite | MediaTek Dimensity 9500 Super Edition |
| Geekbench 6 (single) | — | 3,181Top 10% |
| Geekbench 6 (multi) | — | 9,511Top 11% |
| RAM (max) | 16 GB | 16 GB |
| Storage options | 256/512GB | 256/512GB/1TB |
| Storage type | UFS 4.1 | UFS 4.1 |
Camera
| Spec | REDMI K90 Ultra | Vivo X Fold6 |
|---|---|---|
| Main camera | 50 MP | 200 MP+300% |
| Main aperture | f/1.7 | f/1.7 |
| Ultra-wide | 8 MP | 50 MP+525% |
| Telephoto | — | 50 MP |
| Optical zoom | — | 3 x |
| Max video | 8K@30fps | 8K@30fps |
| Front camera | 20 MP | 20 MP |
| OIS | Yes | Yes |
Battery
| Spec | REDMI K90 Ultra | Vivo X Fold6 |
|---|---|---|
| Capacity | 8,550 mAh+22% | 7,000 mAh |
| Wired charging | 100 W+25% | 80 W |
| Wireless charging | — | 40 W |
Design
| Spec | REDMI K90 Ultra | Vivo X Fold6 |
|---|---|---|
| Weight | 227 g | 228 g |
| Thickness | 8.2 mm+13% | 9.4 mm |
| IP rating | IP68/IP69 | IP58/IP59 |
| Frame material | Aluminum | Aluminum |
Connectivity
| Spec | REDMI K90 Ultra | Vivo X Fold6 |
|---|---|---|
| 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 | — |
Software
| Spec | REDMI K90 Ultra | Vivo X Fold6 |
|---|---|---|
| OS at launch | Android 16 (HyperOS 3) | Android 16 (OriginOS 6 Fold) |
Audio
| Spec | REDMI K90 Ultra | Vivo X Fold6 |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |