Redmi K80 Ultra vs Xiaomi Mi 9T
The Redmi K80 Ultra (2025) runs on the MediaTek Dimensity 9400+, while the Xiaomi Mi 9T (2019) runs on the Qualcomm Snapdragon 730; launch prices were $350 and $300. By overall MobileRank rating, the Redmi K80 Ultra leads — 73/100 vs 40/100 (a 33-point difference). Key differences: the Redmi K80 Ultra has the bigger battery (7410 mAh vs 4000); the main camera is 50 MP vs 48 MP; the Redmi K80 Ultra is faster in AnTuTu (2,874,956 vs 502,844); the Xiaomi Mi 9T is noticeably lighter (191g vs 219g).
Profile comparison
Category scores
Redmi K80 Ultra
Xiaomi Mi 9T
What makes Redmi K80 Ultra better?
- Higher AnTuTu: 2874956 vs 502844
- Better Geekbench Single: 2729 vs 724
- Better Geekbench Multi: 8430 vs 1836
- Bigger battery: 7410 vs 4000 mAh
- Faster charging: 100W vs 18W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 144Hz vs 60Hz
- Higher performance (89/100 vs 41/100)
- Longer battery life (86/100 vs 22/100)
- Better display (94/100 vs 56/100)
What makes Xiaomi Mi 9T better?
- Lighter: 191g vs 219g
- Cheaper at launch: $300 vs $350
- Better camera (41/100 vs 37/100)
- Better portability (56/100 vs 40/100)
Comparison verdict
Comparing the Redmi K80 Ultra vs the Xiaomi Mi 9T, the Redmi K80 Ultra scores 33 points higher (73/100 vs 40/100). In the "performance" category, the Redmi K80 Ultra leads (89/100 vs 41/100). In the "battery" category, the Redmi K80 Ultra leads (86/100 vs 22/100). Value score: Redmi K80 Ultra — 80/100, Xiaomi Mi 9T — 18/100; 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 9T (89/100 vs 41/100). In the "display" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9T (94/100 vs 56/100). In the "camera" category, the Xiaomi Mi 9T and the Redmi K80 Ultra are nearly equal (41/100 vs 37/100). In the "battery" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9T (86/100 vs 22/100). In the "portability" category, the Xiaomi Mi 9T notably outperforms the Redmi K80 Ultra (56/100 vs 40/100).
Specs comparison
| Specification | Redmi K80 Ultra | Xiaomi Mi 9T | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9400+ | Qualcomm Snapdragon 730 | |
| AnTuTu | 2874956 | 502844 | |
| Geekbench Single | 2729 | 724 | |
| Geekbench Multi | 8430 | 1836 | |
| Display | 6.8" OLED | 6.4" AMOLED | |
| Resolution | 1280x2772 | 2340x1080 | |
| Refresh rate | 144 Hz | 60 Hz | |
| Battery | 7410 mAh | 4000 mAh | |
| Charging | 100W | 18W | |
| Main camera | 50 MP | 48 MP | |
| Ultrawide | 8 MP | 13 MP | |
| Telephoto | 0 MP | 8 MP | |
| Front camera | 20 MP | 20 MP | |
| RAM | 12GB / 16GB | 6GB | |
| Storage | 256GB / 512GB / 1TB | 64GB / 128GB | |
| OS | Android 15 | Android 9 | |
| Brightness (peak) | 3200 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | — | 156.7×74.3×8.8 mm | |
| Weight | 219 g | 191 g | |
| Launch price | $350 | $300 |
Camera comparison
Redmi K80 Ultra
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Front: 20MP
Xiaomi Mi 9T
- Main: 48MP f/1.75
- Ultrawide: 13MP
- Telephoto: 8MP
- Front: 20MP
Display comparison
Redmi K80 Ultra
- 6.8" OLED
- Resolution: 1280x2772
- Refresh rate: 144 Hz
Xiaomi Mi 9T
- 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 9T
- 4000 mAh
- Wired: 18W
- No wireless charging
Overall performance score
We compared Redmi K80 Ultra and Xiaomi Mi 9T, covering their specs and all relevant benchmarks.
Redmi K80 Ultra leads Xiaomi Mi 9T by 471.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $50. Xiaomi Mi 9T was $50 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9T (89/100 vs 41/100).
display
In the "display" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9T (94/100 vs 56/100).
camera
In the "camera" category, the Xiaomi Mi 9T and the Redmi K80 Ultra are nearly equal (41/100 vs 37/100).
battery
In the "battery" category, the Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9T (86/100 vs 22/100).
portability
In the "portability" category, the Xiaomi Mi 9T notably outperforms the Redmi K80 Ultra (56/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K80 Ultra or the Xiaomi Mi 9T?
The Redmi K80 Ultra significantly outperforms the Xiaomi Mi 9T by 33 points (73/100 vs 40/100).
What is the rating of the Redmi K80 Ultra and the Xiaomi Mi 9T?
The Redmi K80 Ultra has a MobileRank rating of 73/100, the Xiaomi Mi 9T — 40/100.
Which is more powerful: the Redmi K80 Ultra or the Xiaomi Mi 9T?
The Redmi K80 Ultra leads on performance (89/100 vs 41/100).
Should you choose the Redmi K80 Ultra over the Xiaomi Mi 9T?
The Redmi K80 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.