Redmi K90 Ultra vs Samsung Galaxy S26 Ultra
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Samsung Galaxy S26 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; estimated prices are $420 and $1299. By overall MobileRank rating, the Samsung Galaxy S26 Ultra leads — 75/100 vs 61/100 (a 14-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the main camera is 50 MP vs 200 MP; the Samsung Galaxy S26 Ultra is faster in AnTuTu (3,515,964 vs 2,760,000).
Redmi K90 Ultra
Samsung Galaxy S26 Ultra
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 60W
- Higher refresh rate: 165Hz vs 120Hz
- Cheaper: $420 vs $1299
- Longer battery life (77/100 vs 51/100)
- Better value for money (81/100 vs 20/100)
- Higher AnTuTu: 3515964 vs 2760000
- Better Geekbench Single: 3601 vs 3050
- Better Geekbench Multi: 10686 vs 9300
- Better main camera: 200MP vs 50MP
- Lighter: 214g vs 227g
- Higher performance (84/100 vs 65/100)
- Better camera (86/100 vs 32/100)
- Better design/ergonomics (32/100 vs 16/100)
Comparing the Redmi K90 Ultra vs the Samsung Galaxy S26 Ultra, the Samsung Galaxy S26 Ultra scores 14 points higher (75/100 vs 61/100). In the "performance" category, the Samsung Galaxy S26 Ultra leads (84/100 vs 65/100). In the "camera" category, the Samsung Galaxy S26 Ultra leads (86/100 vs 32/100). In the "battery" category, the Redmi K90 Ultra leads (77/100 vs 51/100). In the "value for money" category, the Redmi K90 Ultra leads (81/100 vs 20/100). In the "performance" category, the Samsung Galaxy S26 Ultra notably outperforms the Redmi K90 Ultra (84/100 vs 65/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Samsung Galaxy S26 Ultra significantly outperforms the Redmi K90 Ultra (86/100 vs 32/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy S26 Ultra (77/100 vs 51/100). In the "design" category, the Samsung Galaxy S26 Ultra notably outperforms the Redmi K90 Ultra (32/100 vs 16/100). In the "value for money" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy S26 Ultra (81/100 vs 20/100).
| Specification | Redmi K90 Ultra | Samsung Galaxy S26 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 2760000 | 3515964 | |
| Geekbench Single | 3050 | 3601 | |
| Geekbench Multi | 9300 | 10686 | |
| Display | 6.8" AMOLED | 6.9" Dynamic AMOLED 2X | |
| Resolution | 1280x2772 | 3120x1440 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 5000 mAh | |
| Charging | 100W | 60W | |
| Wireless charging | 0W | 25W | |
| DXOMark (camera) | — | 157 | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 20 MP | 12 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 / One UI 8.5 | |
| Brightness (peak) | 3500 nits | 2600 nits | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | IP68 | |
| Dimensions | 162.9×77.9×8.2 mm | 163.6×78.1×7.9 mm | |
| Weight | 227 g | 214 g | |
| Price | $420 | $1299 |
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Samsung Galaxy S26 Ultra
- Main: 200MP f/f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 12MP
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Samsung Galaxy S26 Ultra
- 6.9" Dynamic AMOLED 2X
- Resolution: 3120x1440
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Samsung Galaxy S26 Ultra
- 5000 mAh
- NanoReview test: web browsing 10:12 hrs, total 28:50 hrs
- Wired: 60W
- Wireless: 25W
We compared Redmi K90 Ultra and Samsung Galaxy S26 Ultra, covering their specs and all relevant benchmarks.
Samsung Galaxy S26 Ultra leads Redmi K90 Ultra by 21.5% in our overall performance rating.
Price difference: $879. Redmi K90 Ultra is cheaper by $879.
performance
In the "performance" category, the Samsung Galaxy S26 Ultra notably outperforms the Redmi K90 Ultra (84/100 vs 65/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Samsung Galaxy S26 Ultra significantly outperforms the Redmi K90 Ultra (86/100 vs 32/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy S26 Ultra (77/100 vs 51/100).
design
In the "design" category, the Samsung Galaxy S26 Ultra notably outperforms the Redmi K90 Ultra (32/100 vs 16/100).
value for money
In the "value for money" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy S26 Ultra (81/100 vs 20/100).
Which is better: the Redmi K90 Ultra or the Samsung Galaxy S26 Ultra?
The Samsung Galaxy S26 Ultra is noticeably better than the Redmi K90 Ultra — the overall rating gap is 14 points.
What is the rating of the Redmi K90 Ultra and the Samsung Galaxy S26 Ultra?
The Redmi K90 Ultra has a MobileRank rating of 61/100, the Samsung Galaxy S26 Ultra — 75/100.
Which has the better camera: the Redmi K90 Ultra or the Samsung Galaxy S26 Ultra?
The Samsung Galaxy S26 Ultra leads on camera score (86/100 vs 32/100).
Which is more powerful: the Redmi K90 Ultra or the Samsung Galaxy S26 Ultra?
The Samsung Galaxy S26 Ultra leads on performance (84/100 vs 65/100).
Should you choose the Redmi K90 Ultra over the Samsung Galaxy S26 Ultra?
The Redmi K90 Ultra is a better fit for active users, those who care about battery life, budget-conscious buyers. The Samsung Galaxy S26 Ultra is a better fit for gamers and power users, mobile photography enthusiasts.