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; estimated prices are $350 and $635. By overall MobileRank rating, the Xiaomi 15 leads — 73/100 vs 60/100 (a 13-point difference). Key differences: the Redmi K80 Ultra has the bigger battery (7410 mAh vs 5240); the Xiaomi 15 is faster in AnTuTu (2,923,262 vs 2,876,004); the Xiaomi 15 is noticeably lighter (191g vs 219g).
Redmi K80 Ultra
Xiaomi 15
- Bigger battery: 7410 vs 5240 mAh
- Faster charging: 100W vs 90W
- Higher refresh rate: 144Hz vs 120Hz
- Cheaper: $350 vs $635
- Longer battery life (72/100 vs 68/100)
- Better value for money (86/100 vs 66/100)
- Higher AnTuTu: 2923262 vs 2876004
- Better Geekbench Single: 3092 vs 2729
- Better Geekbench Multi: 9147 vs 8430
- Lighter: 191g vs 219g
- Higher performance (67/100 vs 61/100)
- Better camera (78/100 vs 32/100)
- Better design/ergonomics (61/100 vs 26/100)
Comparing the Redmi K80 Ultra vs the Xiaomi 15, the Xiaomi 15 scores 13 points higher (73/100 vs 60/100). In the "camera" category, the Xiaomi 15 leads (78/100 vs 32/100). In the "value for money" category, the Redmi K80 Ultra leads (86/100 vs 66/100). In the "performance" category, the Xiaomi 15 is a bit better (67/100 vs 61/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Xiaomi 15 significantly outperforms the Redmi K80 Ultra (78/100 vs 32/100). In the "battery" category, the Redmi K80 Ultra and the Xiaomi 15 are nearly equal (72/100 vs 68/100). In the "design" category, the Xiaomi 15 significantly outperforms the Redmi K80 Ultra (61/100 vs 26/100). In the "value for money" category, the Redmi K80 Ultra notably outperforms the Xiaomi 15 (86/100 vs 66/100).
| Specification | Redmi K80 Ultra | Xiaomi 15 | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9400+ | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 2876004 | 2923262 | |
| 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 | 0W | 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 | |
| Price | $350 | $635 |
Redmi K80 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Front: 20MP
Xiaomi 15
- Main: 50MP f/f/1.6
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Redmi K80 Ultra
- 6.8" OLED
- Resolution: 1280x2772
- Refresh rate: 144 Hz
Xiaomi 15
- 6.4" LTPO AMOLED
- Resolution: 2670x1200
- Refresh rate: 120 Hz
Redmi K80 Ultra
- 7410 mAh
- Wired: 100W
- No wireless charging
Xiaomi 15
- 5240 mAh
- NanoReview test: web browsing 13:20 hrs, total 31:54 hrs
- Wired: 90W
- Wireless: 50W
We compared Redmi K80 Ultra and Xiaomi 15, covering their specs and all relevant benchmarks.
Xiaomi 15 leads Redmi K80 Ultra by 1.6% in our overall performance rating.
Price difference: $285. Redmi K80 Ultra is cheaper by $285.
performance
In the "performance" category, the Xiaomi 15 is a bit better (67/100 vs 61/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Xiaomi 15 significantly outperforms the Redmi K80 Ultra (78/100 vs 32/100).
battery
In the "battery" category, the Redmi K80 Ultra and the Xiaomi 15 are nearly equal (72/100 vs 68/100).
design
In the "design" category, the Xiaomi 15 significantly outperforms the Redmi K80 Ultra (61/100 vs 26/100).
value for money
In the "value for money" category, the Redmi K80 Ultra notably outperforms the Xiaomi 15 (86/100 vs 66/100).
Which is better: the Redmi K80 Ultra or the Xiaomi 15?
The Xiaomi 15 is noticeably better than the Redmi K80 Ultra — the overall rating gap is 13 points.
What is the rating of the Redmi K80 Ultra and the Xiaomi 15?
The Redmi K80 Ultra has a MobileRank rating of 60/100, the Xiaomi 15 — 73/100.
Which has the better camera: the Redmi K80 Ultra or the Xiaomi 15?
The Xiaomi 15 leads on camera score (78/100 vs 32/100).
Which is more powerful: the Redmi K80 Ultra or the Xiaomi 15?
The Xiaomi 15 leads on performance (67/100 vs 61/100).
Should you choose the Redmi K80 Ultra over the Xiaomi 15?
The Redmi K80 Ultra is a better fit for active users, budget-conscious buyers. The Xiaomi 15 is a better fit for active users.