Redmi K90 Ultra vs Samsung Galaxy Z TriFold
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Samsung Galaxy Z TriFold (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $420 and $2899. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 69/100 (a 4-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5600); the main camera is 50 MP vs 200 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 2,926,532); the Redmi K90 Ultra is noticeably lighter (227g vs 309g).
Profile comparison
Category scores
Redmi K90 Ultra
Samsung Galaxy Z TriFold
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 2926532
- Bigger battery: 8550 vs 5600 mAh
- Faster charging: 100W vs 45W
- Higher refresh rate: 165Hz vs 120Hz
- Lighter: 227g vs 309g
- Cheaper at launch: $420 vs $2899
- Higher performance (92/100 vs 90/100)
- Longer battery life (78/100 vs 63/100)
- Better display (94/100 vs 70/100)
- Better portability (40/100 vs 20/100)
What makes Samsung Galaxy Z TriFold better?
- Better main camera: 200MP vs 50MP
- Better camera (52/100 vs 37/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Samsung Galaxy Z TriFold, the Redmi K90 Ultra scores 4 points higher (73/100 vs 69/100). In the "camera" category, the Samsung Galaxy Z TriFold leads (52/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 63/100). Value score: Redmi K90 Ultra — 72/100, Samsung Galaxy Z TriFold — 46/100; 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 Redmi K90 Ultra and the Samsung Galaxy Z TriFold are nearly equal (92/100 vs 90/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (94/100 vs 70/100). In the "camera" category, the Samsung Galaxy Z TriFold notably outperforms the Redmi K90 Ultra (52/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (78/100 vs 63/100). In the "portability" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (40/100 vs 20/100).
Specs comparison
| Specification | Redmi K90 Ultra | Samsung Galaxy Z TriFold | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3233695 | 2926532 | |
| Geekbench Single | 3013 | 3013 | |
| Geekbench Multi | 9287 | 9287 | |
| Display | 6.8" AMOLED | 10.0" Dynamic AMOLED 2X | |
| Resolution | 1280x2772 | 2160x1584 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 5600 mAh | |
| Charging | 100W | 45W | |
| Wireless charging | 0W | 15W | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 8 MP | 12 MP | |
| Telephoto | 0 MP | 10 MP | |
| Front camera | 20 MP | 10 MP | |
| RAM | 12GB / 16GB | 16GB | |
| Storage | 256GB / 512GB | 512GB | |
| OS | Android 16 | Android 16 / One UI 8 | |
| Brightness (peak) | 3500 nits | 2600 nits | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | IP48 | |
| Dimensions | 162.9×77.9×8.2 mm | 159.2×75.0×12.9 mm | |
| Weight | 227 g | 309 g | |
| Launch price | $420 | $2899 |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Samsung Galaxy Z TriFold
- Main: 200MP f/1.7
- Ultrawide: 12MP
- Telephoto: 10MP
- Front: 10MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Samsung Galaxy Z TriFold
- 10.0" Dynamic AMOLED 2X
- Resolution: 2160x1584
- Refresh rate: 120 Hz
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Samsung Galaxy Z TriFold
- 5600 mAh
- Wired: 45W
- Wireless: 15W
Overall performance score
We compared Redmi K90 Ultra and Samsung Galaxy Z TriFold, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Samsung Galaxy Z TriFold by 10.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $2479. Redmi K90 Ultra was $2479 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra and the Samsung Galaxy Z TriFold are nearly equal (92/100 vs 90/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (94/100 vs 70/100).
camera
In the "camera" category, the Samsung Galaxy Z TriFold notably outperforms the Redmi K90 Ultra (52/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (78/100 vs 63/100).
portability
In the "portability" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (40/100 vs 20/100).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the Samsung Galaxy Z TriFold?
The Redmi K90 Ultra edges out the Samsung Galaxy Z TriFold by just 4 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 Ultra and the Samsung Galaxy Z TriFold?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Samsung Galaxy Z TriFold — 69/100.
Which has the better camera: the Redmi K90 Ultra or the Samsung Galaxy Z TriFold?
The Samsung Galaxy Z TriFold leads on camera score (52/100 vs 37/100).
Should you choose the Redmi K90 Ultra over the Samsung Galaxy Z TriFold?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life. The Samsung Galaxy Z TriFold is a better fit for gamers and power users.