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 1,089,139); the Redmi K50 is noticeably lighter (201g vs 227g).
Redmi K50
Redmi K90 Ultra
- Lighter: 201g vs 227g
- Cheaper at launch: $310 vs $420
- Better portability (53/100 vs 40/100)
- Higher AnTuTu: 3233695 vs 1089139
- Better Geekbench Single: 3041 vs 1139
- Better Geekbench Multi: 9494 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)
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 — 58/100, Redmi K90 Ultra — 82/100; it is biased by price level, so it should not be compared directly between devices at different prices. 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).
| Specification | Redmi K50 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 8100 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1089139 | 3233695 | |
| Geekbench Single | 1139 | 3041 | |
| Geekbench Multi | 3842 | 9494 | |
| 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 |
Redmi K50
- Main: 48MP f/1.79
- Ultrawide: 8MP
- Front: 20MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Redmi K50
- 6.7" AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Redmi K50
- 5500 mAh
- Wired: 67W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
We compared Redmi K50 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Redmi K50 by 66.3% in our overall performance rating.
Launch price difference: $110. Redmi K50 was $110 cheaper at launch.
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).
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, budget-conscious buyers.