Redmi K80 Ultra vs Redmi K90 Ultra
The Redmi K80 Ultra (2025) runs on the MediaTek Dimensity 9400+, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $350 and $420. Both devices score the same overall rating of 73/100. Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 7410); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 2,874,956).
Profile comparison
Category scores
Redmi K80 Ultra
Redmi K90 Ultra
What makes Redmi K80 Ultra better?
- Lighter: 219g vs 227g
- Cheaper at launch: $350 vs $420
- Longer battery life (86/100 vs 78/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 2874956
- Better Geekbench Single: 3013 vs 2729
- Better Geekbench Multi: 9287 vs 8430
- Bigger battery: 8550 vs 7410 mAh
- Higher refresh rate: 165Hz vs 144Hz
- Higher performance (92/100 vs 89/100)
Comparison verdict
The Redmi K80 Ultra and the Redmi K90 Ultra received the same MobileRank rating — 73/100. Value score: Redmi K80 Ultra — 80/100, 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 and the Redmi K80 Ultra are nearly equal (92/100 vs 89/100). In the "display" category, both devices are on the same level — 94/100. In the "camera" category, both devices are on the same level — 37/100. In the "battery" category, the Redmi K80 Ultra is a bit better (86/100 vs 78/100). In the "portability" category, both devices are on the same level — 40/100.
Specs comparison
| Specification | Redmi K80 Ultra | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9400+ | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 2874956 | 3233695 | |
| Geekbench Single | 2729 | 3013 | |
| Geekbench Multi | 8430 | 9287 | |
| Display | 6.8" OLED | 6.8" AMOLED | |
| Resolution | 1280x2772 | 1280x2772 | |
| Refresh rate | 144 Hz | 165 Hz | |
| Battery | 7410 mAh | 8550 mAh | |
| Charging | 100W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 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/IP69 | |
| Dimensions | — | 162.9×77.9×8.2 mm | |
| Weight | 219 g | 227 g | |
| Launch price | $350 | $420 |
Camera comparison
Redmi K80 Ultra
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Front: 20MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Redmi K80 Ultra
- 6.8" OLED
- Resolution: 1280x2772
- Refresh rate: 144 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Redmi K80 Ultra
- 7410 mAh
- Wired: 100W
- Wireless charging: no data
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Redmi K80 Ultra and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Redmi K80 Ultra by 11.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $70. Redmi K80 Ultra was $70 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra and the Redmi K80 Ultra are nearly equal (92/100 vs 89/100).
display
In the "display" category, both devices are on the same level — 94/100.
camera
In the "camera" category, both devices are on the same level — 37/100.
battery
In the "battery" category, the Redmi K80 Ultra is a bit better (86/100 vs 78/100).
portability
In the "portability" category, both devices are on the same level — 40/100.
Frequently asked questions
Which is better: the Redmi K80 Ultra or the Redmi K90 Ultra?
Both devices scored 73/100. The choice depends on your priorities: if performance matters more — go with the Redmi K90 Ultra (92/100 vs 89/100).
What is the rating of the Redmi K80 Ultra and the Redmi K90 Ultra?
The Redmi K80 Ultra has a MobileRank rating of 73/100, the Redmi K90 Ultra — 73/100.
Should you choose the Redmi K80 Ultra over the Redmi K90 Ultra?
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 Ultra is a better fit for gamers and power users, those who care about battery life.