REDMI K90 Ultra vs Ulefone Armor 28 Ultra
64.4Performance55.2
78.7Display53.7
43.4Camera46.8
83.2Battery94.7
86.7Features60
8 spec wins — REDMI K90 Ultra5 spec wins — Ulefone Armor 28 Ultra
InnoReviews verdict
REDMI K90 Ultra wins this phone face-off, 69.1 to 61.6, pulling ahead mainly in features (+27) and display (+25). Ulefone Armor 28 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 performance score: 64 vs 55
- Stronger display score: 79 vs 54
- Stronger features score: 87 vs 60
- 59% higher Peak brightness: 3,500 nits vs 2,200 nits
- 58% lower thickness: 8.2 mm vs 19.4 mm
Reasons to pick the Ulefone Armor 28 Ultra
- Stronger camera score: 47 vs 43
- Stronger battery score: 95 vs 83
- 525% higher ultra-wide: 50 MP vs 8 MP
- 150% higher Front camera: 50 MP vs 20 MP
- 24% higher capacity: 10,600 mAh vs 8,550 mAh
Display
| Spec | REDMI K90 Ultra | Ulefone Armor 28 Ultra |
|---|---|---|
| Screen size | 6.83 ″+2% | 6.67 ″ |
| Panel type | AMOLED | AMOLED |
| Resolution | 1280x2772 | 1080x2400 |
| Pixel density | 447 ppi+13% | 395 ppi |
| Refresh rate | 165 Hz+38% | 120 Hz |
| Peak brightness | 3,500 nits+59% | 2,200 nits |
| Screen-to-body | 90.3 % | — |
Performance
| Spec | REDMI K90 Ultra | Ulefone Armor 28 Ultra |
|---|---|---|
| Chipset | Snapdragon 8 Elite | MediaTek Dimensity 9300+ |
| Geekbench 6 (single) | — | 2,158Top 29% |
| Geekbench 6 (multi) | — | 7,082Top 22% |
| RAM (max) | 16 GB | 16 GB |
| Storage options | 256/512GB | 1TB |
| Storage type | UFS 4.1 | UFS 4.0 |
Camera
| Spec | REDMI K90 Ultra | Ulefone Armor 28 Ultra |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.7 | f/1.9 |
| Ultra-wide | 8 MP | 50 MP+525% |
| Max video | 8K@30fps | 8K@30fps |
| Front camera | 20 MP | 50 MP+150% |
| OIS | Yes | No |
Battery
| Spec | REDMI K90 Ultra | Ulefone Armor 28 Ultra |
|---|---|---|
| Capacity | 8,550 mAh | 10,600 mAh+24% |
| Wired charging | 100 W | 120 W+20% |
| Wireless charging | — | 50 W |
Design
| Spec | REDMI K90 Ultra | Ulefone Armor 28 Ultra |
|---|---|---|
| Weight | 227 g+50% | 450 g |
| Thickness | 8.2 mm+58% | 19.4 mm |
| IP rating | IP68/IP69 | IP68/IP69K |
| Frame material | Aluminum | — |
Connectivity
| Spec | REDMI K90 Ultra | Ulefone Armor 28 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 Gen 2 |
| eSIM | No | No |
Software
| Spec | REDMI K90 Ultra | Ulefone Armor 28 Ultra |
|---|---|---|
| OS at launch | Android 16 (HyperOS 3) | Android 14 |
Audio
| Spec | REDMI K90 Ultra | Ulefone Armor 28 Ultra |
|---|---|---|
| Stereo speakers | Yes | No |
| 3.5mm jack | No | Yes |
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