Redmi K80 Ultra vs Vivo iQOO 15 Ultra
The Redmi K80 Ultra (2025) runs on the MediaTek Dimensity 9400+, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $350 and $799. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 73/100 (a 16-point difference). Key differences: the Redmi K80 Ultra has the bigger battery (7410 mAh vs 7400); the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 2,874,956).
Profile comparison
Category scores
Redmi K80 Ultra
Vivo iQOO 15 Ultra
What makes Redmi K80 Ultra better?
- Bigger battery: 7410 vs 7400 mAh
- Lighter: 219g vs 227g
- Cheaper at launch: $350 vs $799
- Better portability (40/100 vs 35/100)
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 2874956
- Better Geekbench Single: 3639 vs 2729
- Better Geekbench Multi: 11047 vs 8430
- Faster charging: 120W vs 100W
- Higher performance (99/100 vs 89/100)
- Better camera (78/100 vs 37/100)
- Longer battery life (92/100 vs 86/100)
- Better display (99/100 vs 94/100)
Comparison verdict
Comparing the Redmi K80 Ultra vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 16 points higher (89/100 vs 73/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 89/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 37/100). Value score: Redmi K80 Ultra — 80/100, Vivo iQOO 15 Ultra — 92/100; 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 Vivo iQOO 15 Ultra is a bit better (99/100 vs 89/100). In the "display" category, the Vivo iQOO 15 Ultra is a bit better (99/100 vs 94/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Redmi K80 Ultra (78/100 vs 37/100). In the "battery" category, the Vivo iQOO 15 Ultra is a bit better (92/100 vs 86/100). In the "portability" category, the Redmi K80 Ultra is a bit better (40/100 vs 35/100).
Specs comparison
| Specification | Redmi K80 Ultra | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9400+ | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 2874956 | 4602290 | |
| Geekbench Single | 2729 | 3639 | |
| Geekbench Multi | 8430 | 11047 | |
| Display | 6.8" OLED | 6.8" LTPO AMOLED | |
| Resolution | 1280x2772 | 1440x3168 | |
| Refresh rate | 144 Hz | 144 Hz | |
| Battery | 7410 mAh | 7400 mAh | |
| Charging | 100W | 120W | |
| Wireless charging | — | 50W | |
| 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 / 24GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 15 | Android 16 | |
| Brightness (peak) | 3200 nits | 8000 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | — | 163.7×76.8×8.7 mm | |
| Weight | 219 g | 227 g | |
| Launch price | $350 | $799 |
Camera comparison
Redmi K80 Ultra
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Front: 20MP
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Redmi K80 Ultra
- 6.8" OLED
- Resolution: 1280x2772
- Refresh rate: 144 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
Redmi K80 Ultra
- 7410 mAh
- Wired: 100W
- Wireless charging: no data
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Overall performance score
We compared Redmi K80 Ultra and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Redmi K80 Ultra by 37.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $449. Redmi K80 Ultra was $449 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra is a bit better (99/100 vs 89/100).
display
In the "display" category, the Vivo iQOO 15 Ultra is a bit better (99/100 vs 94/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Redmi K80 Ultra (78/100 vs 37/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra is a bit better (92/100 vs 86/100).
portability
In the "portability" category, the Redmi K80 Ultra is a bit better (40/100 vs 35/100).
Frequently asked questions
Which is better: the Redmi K80 Ultra or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra is noticeably better than the Redmi K80 Ultra — the overall rating gap is 16 points.
What is the rating of the Redmi K80 Ultra and the Vivo iQOO 15 Ultra?
The Redmi K80 Ultra has a MobileRank rating of 73/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the Redmi K80 Ultra or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 37/100).
Which is more powerful: the Redmi K80 Ultra or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 89/100).
Should you choose the Redmi K80 Ultra over the Vivo iQOO 15 Ultra?
The Redmi K80 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.