Redmi K50 vs Redmi K90 Ultra
The Redmi K50 (2022) runs on the MediaTek Dimensity 8100, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $310 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 58/100 (a 15-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5500); the main camera is 48 MP vs 50 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 1,092,605); the Redmi K50 is noticeably lighter (201g vs 227g).
Profile comparison
Category scores
Redmi K50
Redmi K90 Ultra
What makes Redmi K50 better?
- Lighter: 201g vs 227g
- Cheaper at launch: $310 vs $420
- Better portability (53/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 1092605
- Better Geekbench Single: 3013 vs 1139
- Better Geekbench Multi: 9287 vs 3842
- Bigger battery: 8550 vs 5500 mAh
- Faster charging: 100W vs 67W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 62/100)
- Better camera (37/100 vs 36/100)
- Longer battery life (78/100 vs 59/100)
- Better display (94/100 vs 90/100)
Comparison verdict
Comparing the Redmi K50 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 15 points higher (73/100 vs 58/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 62/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 59/100). Value score: Redmi K50 — 54/100, Redmi K90 Ultra — 72/100; 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 significantly outperforms the Redmi K50 (92/100 vs 62/100). In the "display" category, the Redmi K90 Ultra and the Redmi K50 are nearly equal (94/100 vs 90/100). In the "camera" category, the Redmi K90 Ultra and the Redmi K50 are nearly equal (37/100 vs 36/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Redmi K50 (78/100 vs 59/100). In the "portability" category, the Redmi K50 is a bit better (53/100 vs 40/100).
Specs comparison
| Specification | Redmi K50 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 8100 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1092605 | 3233695 | |
| Geekbench Single | 1139 | 3013 | |
| Geekbench Multi | 3842 | 9287 | |
| Display | 6.7" AMOLED | 6.8" AMOLED | |
| Resolution | 3200x1440 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 5500 mAh | 8550 mAh | |
| Charging | 67W | 100W | |
| Main camera | 48 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 20 MP | 20 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 128GB / 256GB / 512GB | 256GB / 512GB | |
| OS | Android 12 | Android 16 | |
| Brightness (peak) | 1200 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP53 | IP68/IP69 | |
| Dimensions | 163.1×76.2×8.5 mm | 162.9×77.9×8.2 mm | |
| Weight | 201 g | 227 g | |
| Launch price | $310 | $420 |
Camera comparison
Redmi K50
- Main: 48MP f/1.79
- Ultrawide: 8MP
- Front: 20MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Redmi K50
- 6.7" AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Redmi K50
- 5500 mAh
- Wired: 67W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Redmi K50 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Redmi K50 by 66.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $110. Redmi K50 was $110 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Redmi K50 (92/100 vs 62/100).
display
In the "display" category, the Redmi K90 Ultra and the Redmi K50 are nearly equal (94/100 vs 90/100).
camera
In the "camera" category, the Redmi K90 Ultra and the Redmi K50 are nearly equal (37/100 vs 36/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Redmi K50 (78/100 vs 59/100).
portability
In the "portability" category, the Redmi K50 is a bit better (53/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K50 or the Redmi K90 Ultra?
The Redmi K90 Ultra is noticeably better than the Redmi K50 — the overall rating gap is 15 points.
What is the rating of the Redmi K50 and the Redmi K90 Ultra?
The Redmi K50 has a MobileRank rating of 58/100, the Redmi K90 Ultra — 73/100.
Which is more powerful: the Redmi K50 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 62/100).
Should you choose the Redmi K50 over the Redmi K90 Ultra?
The Redmi K50 is a better fit for active users. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.