Redmi K80 Ultra vs Redmi K90
The Redmi K80 Ultra (2025) runs on the MediaTek Dimensity 9400+, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $350 and $401. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 73/100 (a 3-point difference). Key differences: the Redmi K80 Ultra has the bigger battery (7410 mAh vs 7100); the Redmi K90 is faster in AnTuTu (3,077,585 vs 2,874,956).
Profile comparison
Category scores
Redmi K80 Ultra
Redmi K90
What makes Redmi K80 Ultra better?
- Bigger battery: 7410 vs 7100 mAh
- Higher refresh rate: 144Hz vs 120Hz
- Cheaper at launch: $350 vs $401
- Longer battery life (86/100 vs 72/100)
- Better display (94/100 vs 82/100)
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 2874956
- Better Geekbench Single: 3013 vs 2729
- Better Geekbench Multi: 9287 vs 8430
- Lighter: 206g vs 219g
- Higher performance (91/100 vs 89/100)
- Better camera (58/100 vs 37/100)
- Better portability (55/100 vs 40/100)
Comparison verdict
Comparing the Redmi K80 Ultra vs the Redmi K90, the Redmi K90 scores 3 points higher (76/100 vs 73/100). In the "camera" category, the Redmi K90 leads (58/100 vs 37/100). In the "battery" category, the Redmi K80 Ultra leads (86/100 vs 72/100). Value score: Redmi K80 Ultra — 80/100, Redmi K90 — 80/100; 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 and the Redmi K80 Ultra are nearly equal (91/100 vs 89/100). In the "display" category, the Redmi K80 Ultra is a bit better (94/100 vs 82/100). In the "camera" category, the Redmi K90 notably outperforms the Redmi K80 Ultra (58/100 vs 37/100). In the "battery" category, the Redmi K80 Ultra is a bit better (86/100 vs 72/100). In the "portability" category, the Redmi K90 notably outperforms the Redmi K80 Ultra (55/100 vs 40/100).
Specs comparison
| Specification | Redmi K80 Ultra | Redmi K90 | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9400+ | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 2874956 | 3077585 | |
| Geekbench Single | 2729 | 3013 | |
| Geekbench Multi | 8430 | 9287 | |
| Display | 6.8" OLED | 6.6" AMOLED | |
| Resolution | 1280x2772 | 2510x1156 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7410 mAh | 7100 mAh | |
| Charging | 100W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 20 MP | 20 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 15 | Android 16 | |
| Brightness (peak) | 3200 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | — | 157.5×75.3×8.0 mm | |
| Weight | 219 g | 206 g | |
| Launch price | $350 | $401 |
Camera comparison
Redmi K80 Ultra
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Front: 20MP
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Display comparison
Redmi K80 Ultra
- 6.8" OLED
- Resolution: 1280x2772
- Refresh rate: 144 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Battery and charging
Redmi K80 Ultra
- 7410 mAh
- Wired: 100W
- Wireless charging: no data
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Redmi K80 Ultra and Redmi K90, covering their specs and all relevant benchmarks.
Redmi K90 leads Redmi K80 Ultra by 6.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $51. Redmi K80 Ultra was $51 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 and the Redmi K80 Ultra are nearly equal (91/100 vs 89/100).
display
In the "display" category, the Redmi K80 Ultra is a bit better (94/100 vs 82/100).
camera
In the "camera" category, the Redmi K90 notably outperforms the Redmi K80 Ultra (58/100 vs 37/100).
battery
In the "battery" category, the Redmi K80 Ultra is a bit better (86/100 vs 72/100).
portability
In the "portability" category, the Redmi K90 notably outperforms the Redmi K80 Ultra (55/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K80 Ultra or the Redmi K90?
The Redmi K90 edges out the Redmi K80 Ultra by just 3 points — the two devices are very close in overall level.
What is the rating of the Redmi K80 Ultra and the Redmi K90?
The Redmi K80 Ultra has a MobileRank rating of 73/100, the Redmi K90 — 76/100.
Which has the better camera: the Redmi K80 Ultra or the Redmi K90?
The Redmi K90 leads on camera score (58/100 vs 37/100).
Should you choose the Redmi K80 Ultra over the Redmi K90?
The Redmi K80 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.