Redmi K80 Ultra vs Xiaomi Mi 9
The Redmi K80 Ultra (2025) runs on the MediaTek Dimensity 9400+, while the Xiaomi Mi 9 (2019) runs on the Qualcomm Snapdragon 855; launch prices were $350 and $400. By overall MobileRank rating, the Redmi K80 Ultra leads — 73/100 vs 47/100 (a 26-point difference). Key differences: the Redmi K80 Ultra has the bigger battery (7410 mAh vs 3300); the main camera is 50 MP vs 48 MP; the Redmi K80 Ultra is faster in AnTuTu (2,874,956 vs 824,513); the Xiaomi Mi 9 is noticeably lighter (173g vs 219g).
Profile comparison
Category scores
Redmi K80 Ultra
Xiaomi Mi 9
What makes Redmi K80 Ultra better?
- Higher AnTuTu: 2874956 vs 824513
- Better Geekbench Single: 2729 vs 968
- Better Geekbench Multi: 8430 vs 2731
- Bigger battery: 7410 vs 3300 mAh
- Faster charging: 100W vs 27W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 144Hz vs 60Hz
- Cheaper at launch: $350 vs $400
- Higher performance (89/100 vs 54/100)
- Longer battery life (86/100 vs 22/100)
- Better display (94/100 vs 56/100)
What makes Xiaomi Mi 9 better?
- Lighter: 173g vs 219g
- Better camera (44/100 vs 37/100)
- Better portability (79/100 vs 40/100)
Comparison verdict
Comparing the Redmi K80 Ultra vs the Xiaomi Mi 9, the Redmi K80 Ultra scores 26 points higher (73/100 vs 47/100). In the "performance" category, the Redmi K80 Ultra leads (89/100 vs 54/100). In the "battery" category, the Redmi K80 Ultra leads (86/100 vs 22/100). Value score: Redmi K80 Ultra — 80/100, Xiaomi Mi 9 — 22/100; 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 K80 Ultra significantly outperforms the Xiaomi Mi 9 (89/100 vs 54/100). In the "display" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9 (94/100 vs 56/100). In the "camera" category, the Xiaomi Mi 9 is a bit better (44/100 vs 37/100). In the "battery" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9 (86/100 vs 22/100). In the "portability" category, the Xiaomi Mi 9 significantly outperforms the Redmi K80 Ultra (79/100 vs 40/100).
Specs comparison
| Specification | Redmi K80 Ultra | Xiaomi Mi 9 | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9400+ | Qualcomm Snapdragon 855 | |
| AnTuTu | 2874956 | 824513 | |
| Geekbench Single | 2729 | 968 | |
| Geekbench Multi | 8430 | 2731 | |
| Display | 6.8" OLED | 6.4" AMOLED | |
| Resolution | 1280x2772 | 2340x1080 | |
| Refresh rate | 144 Hz | 60 Hz | |
| Battery | 7410 mAh | 3300 mAh | |
| Charging | 100W | 27W | |
| Wireless charging | — | 20W | |
| Main camera | 50 MP | 48 MP | |
| Ultrawide | 8 MP | 16 MP | |
| Telephoto | 0 MP | 12 MP | |
| Front camera | 20 MP | 20 MP | |
| RAM | 12GB / 16GB | 6GB / 8GB | |
| Storage | 256GB / 512GB / 1TB | 64GB / 128GB | |
| OS | Android 15 | Android 9 | |
| Brightness (peak) | 3200 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | — | 157.5×74.7×7.6 mm | |
| Weight | 219 g | 173 g | |
| Launch price | $350 | $400 |
Camera comparison
Redmi K80 Ultra
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Front: 20MP
Xiaomi Mi 9
- Main: 48MP f/1.75
- Ultrawide: 16MP
- Telephoto: 12MP
- Front: 20MP
Display comparison
Redmi K80 Ultra
- 6.8" OLED
- Resolution: 1280x2772
- Refresh rate: 144 Hz
Xiaomi Mi 9
- 6.4" AMOLED
- Resolution: 2340x1080
- Refresh rate: 60 Hz
Battery and charging
Redmi K80 Ultra
- 7410 mAh
- Wired: 100W
- Wireless charging: no data
Xiaomi Mi 9
- 3300 mAh
- Wired: 27W
- Wireless: 20W
Overall performance score
We compared Redmi K80 Ultra and Xiaomi Mi 9, covering their specs and all relevant benchmarks.
Redmi K80 Ultra leads Xiaomi Mi 9 by 248.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $50. Redmi K80 Ultra was $50 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9 (89/100 vs 54/100).
display
In the "display" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9 (94/100 vs 56/100).
camera
In the "camera" category, the Xiaomi Mi 9 is a bit better (44/100 vs 37/100).
battery
In the "battery" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9 (86/100 vs 22/100).
portability
In the "portability" category, the Xiaomi Mi 9 significantly outperforms the Redmi K80 Ultra (79/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K80 Ultra or the Xiaomi Mi 9?
The Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9 by 26 points (73/100 vs 47/100).
What is the rating of the Redmi K80 Ultra and the Xiaomi Mi 9?
The Redmi K80 Ultra has a MobileRank rating of 73/100, the Xiaomi Mi 9 — 47/100.
Which has the better camera: the Redmi K80 Ultra or the Xiaomi Mi 9?
The Xiaomi Mi 9 leads on camera score (44/100 vs 37/100).
Which is more powerful: the Redmi K80 Ultra or the Xiaomi Mi 9?
The Redmi K80 Ultra leads on performance (89/100 vs 54/100).
Should you choose the Redmi K80 Ultra over the Xiaomi Mi 9?
The Redmi K80 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.