Redmi K80 vs Redmi K90 Ultra
The Redmi K80 (2024) runs on the Qualcomm Snapdragon 8 Gen 3, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $345 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 67/100 (a 6-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 6550); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 2,277,927).
Profile comparison
Category scores
Redmi K80
Redmi K90 Ultra
What makes Redmi K80 better?
- Lighter: 213g vs 227g
- Cheaper at launch: $345 vs $420
- Better portability (50/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 2277927
- Better Geekbench Single: 3013 vs 2203
- Better Geekbench Multi: 9287 vs 6511
- Bigger battery: 8550 vs 6550 mAh
- Faster charging: 100W vs 90W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 82/100)
- Longer battery life (78/100 vs 68/100)
- Better display (94/100 vs 90/100)
Comparison verdict
Comparing the Redmi K80 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 6 points higher (73/100 vs 67/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 82/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 68/100). Value score: Redmi K80 — 68/100, 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 is a bit better (92/100 vs 82/100). In the "display" category, the Redmi K90 Ultra and the Redmi K80 are nearly equal (94/100 vs 90/100). In the "camera" category, both devices are on the same level — 37/100. In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 68/100). In the "portability" category, the Redmi K80 is a bit better (50/100 vs 40/100).
Specs comparison
| Specification | Redmi K80 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Gen 3 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 2277927 | 3233695 | |
| Geekbench Single | 2203 | 3013 | |
| Geekbench Multi | 6511 | 9287 | |
| Display | 6.7" AMOLED | 6.8" AMOLED | |
| Resolution | 3200x1440 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 6550 mAh | 8550 mAh | |
| Charging | 90W | 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 | 256GB / 512GB | |
| OS | Android 15 | Android 16 | |
| Brightness (peak) | 3200 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68/IP69 | |
| Dimensions | 160.3×75.0×8.1 mm | 162.9×77.9×8.2 mm | |
| Weight | 213 g | 227 g | |
| Launch price | $345 | $420 |
Camera comparison
Redmi K80
- Main: 50MP f/1.6
- Ultrawide: 8MP
- Front: 20MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Redmi K80
- 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 K80
- 6550 mAh
- Wired: 90W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Redmi K80 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Redmi K80 by 29.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $75. Redmi K80 was $75 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra is a bit better (92/100 vs 82/100).
display
In the "display" category, the Redmi K90 Ultra and the Redmi K80 are nearly equal (94/100 vs 90/100).
camera
In the "camera" category, both devices are on the same level — 37/100.
battery
In the "battery" category, the Redmi K90 Ultra is a bit better (78/100 vs 68/100).
portability
In the "portability" category, the Redmi K80 is a bit better (50/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K80 or the Redmi K90 Ultra?
The Redmi K90 Ultra edges out the Redmi K80 by just 6 points — the two devices are very close in overall level.
What is the rating of the Redmi K80 and the Redmi K90 Ultra?
The Redmi K80 has a MobileRank rating of 67/100, the Redmi K90 Ultra — 73/100.
Which is more powerful: the Redmi K80 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 82/100).
Should you choose the Redmi K80 over the Redmi K90 Ultra?
The Redmi K80 is a better fit for gamers and power users. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.