Redmi K90 Ultra vs Samsung Galaxy Z Flip
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Samsung Galaxy Z Flip (2020) runs on the Qualcomm Snapdragon 855+. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 44/100 (a 29-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 3300); the main camera is 50 MP vs 12 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 859,084); the Samsung Galaxy Z Flip is noticeably lighter (183g vs 227g).
Profile comparison
Category scores
Redmi K90 Ultra
Samsung Galaxy Z Flip
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 859084
- Better Geekbench Single: 3013 vs 1031
- Better Geekbench Multi: 9287 vs 2864
- Bigger battery: 8550 vs 3300 mAh
- Faster charging: 100W vs 15W
- Better main camera: 50MP vs 12MP
- Higher performance (92/100 vs 55/100)
- Better camera (37/100 vs 16/100)
- Longer battery life (78/100 vs 15/100)
- Better display (94/100 vs 85/100)
What makes Samsung Galaxy Z Flip better?
- Lighter: 183g vs 227g
- Better portability (77/100 vs 40/100)
Comparison verdict
Comparing the Redmi K90 Ultra vs the Samsung Galaxy Z Flip, the Redmi K90 Ultra scores 29 points higher (73/100 vs 44/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 55/100). In the "camera" category, the Redmi K90 Ultra leads (37/100 vs 16/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 15/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy Z Flip (92/100 vs 55/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 85/100). In the "camera" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z Flip (37/100 vs 16/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy Z Flip (78/100 vs 15/100). In the "portability" category, the Samsung Galaxy Z Flip significantly outperforms the Redmi K90 Ultra (77/100 vs 40/100).
Specs comparison
| Specification | Redmi K90 Ultra | Samsung Galaxy Z Flip | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 855+ | |
| AnTuTu | 3233695 | 859084 | |
| Geekbench Single | 3013 | 1031 | |
| Geekbench Multi | 9287 | 2864 | |
| Display | 6.8" AMOLED | 6.7" Foldable Dynamic AMOLED | |
| Resolution | 1280x2772 | 1080x2636 | |
| Refresh rate | 165 Hz | — | |
| Battery | 8550 mAh | 3300 mAh | |
| Charging | 100W | 15W | |
| Main camera | 50 MP | 12 MP | |
| Ultrawide | 8 MP | 12 MP | |
| Front camera | 20 MP | 10 MP | |
| RAM | 12GB / 16GB | 8GB | |
| Storage | 256GB / 512GB | 256GB | |
| OS | Android 16 | Android 10.0; One UI 2 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | — | |
| Dimensions | 162.9×77.9×8.2 mm | 167.3×73.6×7.2 mm | |
| Weight | 227 g | 183 g | |
| Launch price | $420 | — |
Camera comparison
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Samsung Galaxy Z Flip
- Main: 12MP f/1.8
- Ultrawide: 12MP
- Front: 10MP
Display comparison
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Samsung Galaxy Z Flip
- 6.7" Foldable Dynamic AMOLED
- Resolution: 1080x2636
- Refresh rate: —
Battery and charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Samsung Galaxy Z Flip
- 3300 mAh
- Wired: 15W
- Wireless: supported, wattage unknown
Overall performance score
We compared Redmi K90 Ultra and Samsung Galaxy Z Flip, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Samsung Galaxy Z Flip by 276.4% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Samsung Galaxy Z Flip
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy Z Flip (92/100 vs 55/100).
display
In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 85/100).
camera
In the "camera" category, the Redmi K90 Ultra notably outperforms the Samsung Galaxy Z Flip (37/100 vs 16/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Samsung Galaxy Z Flip (78/100 vs 15/100).
portability
In the "portability" category, the Samsung Galaxy Z Flip significantly outperforms the Redmi K90 Ultra (77/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K90 Ultra or the Samsung Galaxy Z Flip?
The Redmi K90 Ultra significantly outperforms the Samsung Galaxy Z Flip by 29 points (73/100 vs 44/100).
What is the rating of the Redmi K90 Ultra and the Samsung Galaxy Z Flip?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Samsung Galaxy Z Flip — 44/100.
Which has the better camera: the Redmi K90 Ultra or the Samsung Galaxy Z Flip?
The Redmi K90 Ultra leads on camera score (37/100 vs 16/100).
Which is more powerful: the Redmi K90 Ultra or the Samsung Galaxy Z Flip?
The Redmi K90 Ultra leads on performance (92/100 vs 55/100).
Should you choose the Redmi K90 Ultra over the Samsung Galaxy Z Flip?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.