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; launch prices were $420 and $1299. By overall MobileRank rating, the Samsung Galaxy S26 Ultra leads — 84/100 vs 73/100 (a 11-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 (3,463,142 vs 3,233,695).
Profile comparison
Category scores
Redmi K90 Ultra
Samsung Galaxy S26 Ultra
What makes Redmi K90 Ultra better?
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 60W
- Higher refresh rate: 165Hz vs 120Hz
- Cheaper at launch: $420 vs $1299
- Longer battery life (78/100 vs 61/100)
- Better display (94/100 vs 88/100)
What makes Samsung Galaxy S26 Ultra better?
- Higher AnTuTu: 3463142 vs 3233695
- Better Geekbench Single: 3601 vs 3013
- Better Geekbench Multi: 10686 vs 9287
- Better main camera: 200MP vs 50MP
- Lighter: 214g vs 227g
- Higher performance (96/100 vs 92/100)
- Better camera (86/100 vs 37/100)
- Better portability (51/100 vs 40/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Samsung Galaxy S26 Ultra, the Samsung Galaxy S26 Ultra scores 11 points higher (84/100 vs 73/100). In the "camera" category, the Samsung Galaxy S26 Ultra leads (86/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 61/100). Value score: Redmi K90 Ultra — 72/100, Samsung Galaxy S26 Ultra — 78/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Samsung Galaxy S26 Ultra and the Redmi K90 Ultra are nearly equal (96/100 vs 92/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 88/100). In the "camera" category, the Samsung Galaxy S26 Ultra significantly outperforms the Redmi K90 Ultra (86/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy S26 Ultra (78/100 vs 61/100). In the "portability" category, the Samsung Galaxy S26 Ultra is a bit better (51/100 vs 40/100).
Specs comparison
| Specification | Redmi K90 Ultra | Samsung Galaxy S26 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 3233695 | 3463142 | |
| Geekbench Single | 3013 | 3601 | |
| Geekbench Multi | 9287 | 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 | |
| Launch price | $420 | $1299 |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Samsung Galaxy S26 Ultra
- Main: 200MP f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 12MP
Display comparison
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
Battery and charging
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
Overall performance score
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 6.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $879. Redmi K90 Ultra was $879 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Samsung Galaxy S26 Ultra and the Redmi K90 Ultra are nearly equal (96/100 vs 92/100).
display
In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 88/100).
camera
In the "camera" category, the Samsung Galaxy S26 Ultra significantly outperforms the Redmi K90 Ultra (86/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy S26 Ultra (78/100 vs 61/100).
portability
In the "portability" category, the Samsung Galaxy S26 Ultra is a bit better (51/100 vs 40/100).
Frequently asked questions
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 11 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 73/100, the Samsung Galaxy S26 Ultra — 84/100.
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 37/100).
Should you choose the Redmi K90 Ultra over the Samsung Galaxy S26 Ultra?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life. The Samsung Galaxy S26 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, budget-conscious buyers.