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; estimated prices are $420 and $2899. By overall MobileRank rating, the Redmi K90 Ultra leads — 61/100 vs 57/100 (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 Samsung Galaxy Z TriFold is faster in AnTuTu (2,926,532 vs 2,760,000); the Redmi K90 Ultra is noticeably lighter (227g vs 309g).
Redmi K90 Ultra
Samsung Galaxy Z TriFold
- Bigger battery: 8550 vs 5600 mAh
- Faster charging: 100W vs 45W
- Higher refresh rate: 165Hz vs 120Hz
- Lighter: 227g vs 309g
- Cheaper: $420 vs $2899
- Longer battery life (77/100 vs 52/100)
- Better design/ergonomics (16/100 vs 0/100)
- Better value for money (81/100 vs 0/100)
- Higher AnTuTu: 2926532 vs 2760000
- Better main camera: 200MP vs 50MP
- Higher performance (67/100 vs 65/100)
- Better camera (49/100 vs 32/100)
Comparing the Redmi K90 Ultra vs the Samsung Galaxy Z TriFold, the Redmi K90 Ultra scores 4 points higher (61/100 vs 57/100). In the "camera" category, the Samsung Galaxy Z TriFold leads (49/100 vs 32/100). In the "battery" category, the Redmi K90 Ultra leads (77/100 vs 52/100). In the "value for money" category, the Redmi K90 Ultra leads (81/100 vs 0/100). In the "performance" category, the Samsung Galaxy Z TriFold and the Redmi K90 Ultra are nearly equal (67/100 vs 65/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Samsung Galaxy Z TriFold notably outperforms the Redmi K90 Ultra (49/100 vs 32/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (77/100 vs 52/100). In the "design" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (16/100 vs 0/100). In the "value for money" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy Z TriFold (81/100 vs 0/100).
| Specification | Redmi K90 Ultra | Samsung Galaxy Z TriFold | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 2760000 | 2926532 | |
| Geekbench Single | 3050 | 3050 | |
| Geekbench Multi | 9300 | 9300 | |
| 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 | |
| Price | $420 | $2899 |
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Samsung Galaxy Z TriFold
- Main: 200MP f/f/1.7
- Ultrawide: 12MP
- Telephoto: 10MP
- Front: 10MP
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
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Samsung Galaxy Z TriFold
- 5600 mAh
- Wired: 45W
- Wireless: 15W
We compared Redmi K90 Ultra and Samsung Galaxy Z TriFold, covering their specs and all relevant benchmarks.
Samsung Galaxy Z TriFold leads Redmi K90 Ultra by 5.7% in our overall performance rating.
Price difference: $2479. Redmi K90 Ultra is cheaper by $2479.
performance
In the "performance" category, the Samsung Galaxy Z TriFold and the Redmi K90 Ultra are nearly equal (67/100 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 Z TriFold notably outperforms the Redmi K90 Ultra (49/100 vs 32/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (77/100 vs 52/100).
design
In the "design" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z TriFold (16/100 vs 0/100).
value for money
In the "value for money" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy Z TriFold (81/100 vs 0/100).
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 61/100, the Samsung Galaxy Z TriFold — 57/100.
Which has the better camera: the Redmi K90 Ultra or the Samsung Galaxy Z TriFold?
The Samsung Galaxy Z TriFold leads on camera score (49/100 vs 32/100).
Should you choose the Redmi K90 Ultra over the Samsung Galaxy Z TriFold?
The Redmi K90 Ultra is a better fit for active users, those who care about battery life, budget-conscious buyers. The Samsung Galaxy Z TriFold is a better fit for active users.