Nothing Phone (4a) vs REDMI K90 Ultra
40.4Performance64.4
69.8Display78.7
57.6Camera43.4
67.4Battery83.2
65.3Features86.7
3 spec wins — Nothing Phone (4a)8 spec wins — REDMI K90 Ultra
InnoReviews verdict
REDMI K90 Ultra wins this phone face-off, 69.1 to 57.6, pulling ahead mainly in performance (+24) and features (+21). Nothing Phone (4a) still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Nothing Phone (4a)
- Stronger camera score: 58 vs 43
- 60% higher Front camera: 32 MP vs 20 MP
- 29% higher Peak brightness: 4,500 nits vs 3,500 nits
- 10% lower weight: 205 g vs 227 g
Reasons to pick the REDMI K90 Ultra
- Stronger performance score: 64 vs 40
- Stronger display score: 79 vs 70
- Stronger battery score: 83 vs 67
- Stronger features score: 87 vs 65
- 100% higher Wired charging: 100 W vs 50 W
Display
| Spec | Nothing Phone (4a) | REDMI K90 Ultra |
|---|---|---|
| Screen size | 6.78 ″ | 6.83 ″+1% |
| Panel type | AMOLED | AMOLED |
| Resolution | 1224x2720 | 1280x2772 |
| Pixel density | 440 ppi | 447 ppi+2% |
| Refresh rate | 120 Hz | 165 Hz+38% |
| Peak brightness | 4,500 nits+29% | 3,500 nits |
| Screen-to-body | 87.2 % | 90.3 %+4% |
Performance
| Spec | Nothing Phone (4a) | REDMI K90 Ultra |
|---|---|---|
| Chipset | Snapdragon 7s Gen 4 | Snapdragon 8 Elite |
| AnTuTu | 1,183,775 | — |
| Geekbench 6 (single) | 1,279Bottom 50% | — |
| Geekbench 6 (multi) | 3,374Bottom 47% | — |
| Wild Life Extreme stability | 99 %Top 23% | — |
| RAM (max) | 12 GB | 16 GB+33% |
| Storage options | 128GB/256GB | 256/512GB |
| Storage type | UFS 3.1 | UFS 4.1 |
Camera
| Spec | Nothing Phone (4a) | REDMI K90 Ultra |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.9 | f/1.7 |
| Ultra-wide | 8 MP | 8 MP |
| Telephoto | 50 MP | — |
| Optical zoom | 3.5 x | — |
| Max video | 4K@30fps | 8K@30fps |
| Front camera | 32 MP+60% | 20 MP |
| OIS | Yes | Yes |
Battery
| Spec | Nothing Phone (4a) | REDMI K90 Ultra |
|---|---|---|
| Capacity | 5,080 mAh | 8,550 mAh+68% |
| Wired charging | 50 W | 100 W+100% |
| Wireless charging | 0 W | — |
| Active use endurance | 13.6 h | — |
Design
| Spec | Nothing Phone (4a) | REDMI K90 Ultra |
|---|---|---|
| Weight | 205 g+10% | 227 g |
| Thickness | 8.6 mm | 8.2 mm+5% |
| IP rating | IP64 | IP68/IP69 |
| Frame material | Plastic | Aluminum |
Connectivity
| Spec | Nothing Phone (4a) | REDMI K90 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 7 |
| Bluetooth | 5.4 | 5.4 |
| NFC | Yes | Yes |
| USB | USB-C 2.0 | USB-C |
| eSIM | No | No |
Software
| Spec | Nothing Phone (4a) | REDMI K90 Ultra |
|---|---|---|
| OS at launch | Android 16 (Nothing OS 4.1) | Android 16 (HyperOS 3) |
| OS update pledge | 3 years | — |
Audio
| Spec | Nothing Phone (4a) | REDMI K90 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |