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; estimated prices are $350 and $400. By overall MobileRank rating, the Redmi K80 Ultra leads — 60/100 vs 19/100 (a 41-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 (2,876,004 vs 824,513); the Xiaomi Mi 9 is noticeably lighter (173g vs 219g).
Redmi K80 Ultra
Xiaomi Mi 9
- Higher AnTuTu: 2876004 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: $350 vs $400
- Higher performance (61/100 vs 1/100)
- Longer battery life (72/100 vs 5/100)
- Better display (100/100 vs 0/100)
- Better value for money (86/100 vs 82/100)
- Lighter: 173g vs 219g
- Better camera (39/100 vs 32/100)
- Better design/ergonomics (83/100 vs 26/100)
Comparing the Redmi K80 Ultra vs the Xiaomi Mi 9, the Redmi K80 Ultra scores 41 points higher (60/100 vs 19/100). In the "performance" category, the Redmi K80 Ultra leads (61/100 vs 1/100). In the "battery" category, the Redmi K80 Ultra leads (72/100 vs 5/100). In the "performance" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9 (61/100 vs 1/100). In the "display" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9 (100/100 vs 0/100). In the "camera" category, the Xiaomi Mi 9 is a bit better (39/100 vs 32/100). In the "battery" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9 (72/100 vs 5/100). In the "design" category, the Xiaomi Mi 9 significantly outperforms the Redmi K80 Ultra (83/100 vs 26/100). In the "value for money" category, the Redmi K80 Ultra and the Xiaomi Mi 9 are nearly equal (86/100 vs 82/100).
| Specification | Redmi K80 Ultra | Xiaomi Mi 9 | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9400+ | Qualcomm Snapdragon 855 | |
| AnTuTu | 2876004 | 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 | 0W | 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 | |
| Price | $350 | $400 |
Redmi K80 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Front: 20MP
Xiaomi Mi 9
- Main: 48MP f/1.75
- Ultrawide: 16MP
- Telephoto: 12MP
- Front: 20MP
Redmi K80 Ultra
- 6.8" OLED
- Resolution: 1280x2772
- Refresh rate: 144 Hz
Xiaomi Mi 9
- 6.4" AMOLED
- Resolution: 2340x1080
- Refresh rate: 60 Hz
Redmi K80 Ultra
- 7410 mAh
- Wired: 100W
- No wireless charging
Xiaomi Mi 9
- 3300 mAh
- Wired: 27W
- Wireless: 20W
We compared Redmi K80 Ultra and Xiaomi Mi 9, covering their specs and all relevant benchmarks.
Redmi K80 Ultra leads Xiaomi Mi 9 by 248.8% in our overall performance rating.
Price difference: $50. Redmi K80 Ultra is cheaper by $50.
performance
In the "performance" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9 (61/100 vs 1/100).
display
In the "display" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9 (100/100 vs 0/100).
camera
In the "camera" category, the Xiaomi Mi 9 is a bit better (39/100 vs 32/100).
battery
In the "battery" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9 (72/100 vs 5/100).
design
In the "design" category, the Xiaomi Mi 9 significantly outperforms the Redmi K80 Ultra (83/100 vs 26/100).
value for money
In the "value for money" category, the Redmi K80 Ultra and the Xiaomi Mi 9 are nearly equal (86/100 vs 82/100).
Which is better: the Redmi K80 Ultra or the Xiaomi Mi 9?
The Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9 by 41 points (60/100 vs 19/100).
What is the rating of the Redmi K80 Ultra and the Xiaomi Mi 9?
The Redmi K80 Ultra has a MobileRank rating of 60/100, the Xiaomi Mi 9 — 19/100.
Which has the better camera: the Redmi K80 Ultra or the Xiaomi Mi 9?
The Xiaomi Mi 9 leads on camera score (39/100 vs 32/100).
Which is more powerful: the Redmi K80 Ultra or the Xiaomi Mi 9?
The Redmi K80 Ultra leads on performance (61/100 vs 1/100).
Should you choose the Redmi K80 Ultra over the Xiaomi Mi 9?
The Redmi K80 Ultra is a better fit for active users, budget-conscious buyers. The Xiaomi Mi 9 is a better fit for budget-conscious buyers.