Redmi K80 Ultra vs Xiaomi 15
The Redmi K80 Ultra (2025) runs on the MediaTek Dimensity 9400+, while the Xiaomi 15 (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $350 and $635. By overall MobileRank rating, the Xiaomi 15 leads — 82/100 vs 73/100 (a 9-point difference). Key differences: the Redmi K80 Ultra has the bigger battery (7410 mAh vs 5240); the Xiaomi 15 is faster in AnTuTu (2,914,100 vs 2,874,956); the Xiaomi 15 is noticeably lighter (191g vs 219g).
Profile comparison
Category scores
Redmi K80 Ultra
Xiaomi 15
What makes Redmi K80 Ultra better?
- Bigger battery: 7410 vs 5240 mAh
- Faster charging: 100W vs 90W
- Higher refresh rate: 144Hz vs 120Hz
- Cheaper at launch: $350 vs $635
- Longer battery life (86/100 vs 77/100)
- Better display (94/100 vs 85/100)
What makes Xiaomi 15 better?
- Higher AnTuTu: 2914100 vs 2874956
- Better Geekbench Single: 3092 vs 2729
- Better Geekbench Multi: 9147 vs 8430
- Lighter: 191g vs 219g
- Higher performance (91/100 vs 89/100)
- Better camera (78/100 vs 37/100)
- Better portability (60/100 vs 40/100)
Comparison verdict
Comparing the Redmi K80 Ultra vs the Xiaomi 15, the Xiaomi 15 scores 9 points higher (82/100 vs 73/100). In the "camera" category, the Xiaomi 15 leads (78/100 vs 37/100). Value score: Redmi K80 Ultra — 80/100, Xiaomi 15 — 78/100; 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 Xiaomi 15 and the Redmi K80 Ultra are nearly equal (91/100 vs 89/100). In the "display" category, the Redmi K80 Ultra is a bit better (94/100 vs 85/100). In the "camera" category, the Xiaomi 15 significantly outperforms the Redmi K80 Ultra (78/100 vs 37/100). In the "battery" category, the Redmi K80 Ultra is a bit better (86/100 vs 77/100). In the "portability" category, the Xiaomi 15 notably outperforms the Redmi K80 Ultra (60/100 vs 40/100).
Specs comparison
| Specification | Redmi K80 Ultra | Xiaomi 15 | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9400+ | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 2874956 | 2914100 | |
| Geekbench Single | 2729 | 3092 | |
| Geekbench Multi | 8430 | 9147 | |
| Display | 6.8" OLED | 6.4" LTPO AMOLED | |
| Resolution | 1280x2772 | 2670x1200 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7410 mAh | 5240 mAh | |
| Charging | 100W | 90W | |
| Wireless charging | — | 50W | |
| DXOMark (camera) | — | 147 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 20 MP | 32 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 15 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 3200 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | — | 152.3×71.2×8.4 mm | |
| Weight | 219 g | 191 g | |
| Launch price | $350 | $635 |
Camera comparison
Redmi K80 Ultra
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Front: 20MP
Xiaomi 15
- Main: 50MP f/1.6
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Redmi K80 Ultra
- 6.8" OLED
- Resolution: 1280x2772
- Refresh rate: 144 Hz
Xiaomi 15
- 6.4" LTPO AMOLED
- Resolution: 2670x1200
- Refresh rate: 120 Hz
Battery and charging
Redmi K80 Ultra
- 7410 mAh
- Wired: 100W
- Wireless charging: no data
Xiaomi 15
- 5240 mAh
- NanoReview test: web browsing 13:20 hrs, total 31:54 hrs
- Wired: 90W
- Wireless: 50W
Overall performance score
We compared Redmi K80 Ultra and Xiaomi 15, covering their specs and all relevant benchmarks.
Xiaomi 15 leads Redmi K80 Ultra by 1.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $285. Redmi K80 Ultra was $285 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Xiaomi 15 and the Redmi K80 Ultra are nearly equal (91/100 vs 89/100).
display
In the "display" category, the Redmi K80 Ultra is a bit better (94/100 vs 85/100).
camera
In the "camera" category, the Xiaomi 15 significantly outperforms the Redmi K80 Ultra (78/100 vs 37/100).
battery
In the "battery" category, the Redmi K80 Ultra is a bit better (86/100 vs 77/100).
portability
In the "portability" category, the Xiaomi 15 notably outperforms the Redmi K80 Ultra (60/100 vs 40/100).
Frequently asked questions
Which is better: the Redmi K80 Ultra or the Xiaomi 15?
The Xiaomi 15 edges out the Redmi K80 Ultra by just 9 points — the two devices are very close in overall level.
What is the rating of the Redmi K80 Ultra and the Xiaomi 15?
The Redmi K80 Ultra has a MobileRank rating of 73/100, the Xiaomi 15 — 82/100.
Which has the better camera: the Redmi K80 Ultra or the Xiaomi 15?
The Xiaomi 15 leads on camera score (78/100 vs 37/100).
Should you choose the Redmi K80 Ultra over the Xiaomi 15?
The Redmi K80 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Xiaomi 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.