Poco X8 Power vs Vivo iQOO 15 Ultra
The Poco X8 Power (2026) runs on the Qualcomm Snapdragon 6 Gen 5, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $360 and $799. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 60/100 (a 29-point difference). Key differences: the Poco X8 Power has the bigger battery (10000 mAh vs 7400); the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 1,010,104); the Vivo iQOO 15 Ultra has NFC for contactless payments, the Poco X8 Power doesn't.
Profile comparison
Category scores
Poco X8 Power
Vivo iQOO 15 Ultra
What makes Poco X8 Power better?
- Bigger battery: 10000 vs 7400 mAh
- Cheaper at launch: $360 vs $799
- Overall rating 60/100
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 1010104
- Better Geekbench Single: 3639 vs 1099
- Better Geekbench Multi: 11047 vs 3481
- Faster charging: 120W vs 100W
- Higher refresh rate: 144Hz vs 120Hz
- Lighter: 227g vs 229g
- Higher performance (99/100 vs 59/100)
- Better camera (78/100 vs 40/100)
- Longer battery life (92/100 vs 80/100)
- Better display (99/100 vs 84/100)
Comparison verdict
Comparing the Poco X8 Power vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 29 points higher (89/100 vs 60/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 59/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 40/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 80/100). Value score: Poco X8 Power — 52/100, 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 significantly outperforms the Poco X8 Power (99/100 vs 59/100). In the "display" category, the Vivo iQOO 15 Ultra notably outperforms the Poco X8 Power (99/100 vs 84/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Poco X8 Power (78/100 vs 40/100). In the "battery" category, the Vivo iQOO 15 Ultra is a bit better (92/100 vs 80/100). In the "portability" category, both devices are on the same level — 35/100.
Specs comparison
| Specification | Poco X8 Power | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 6 Gen 5 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 1010104 | 4602290 | |
| Geekbench Single | 1099 | 3639 | |
| Geekbench Multi | 3481 | 11047 | |
| Display | 6.8" AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 1280x2772 | 1440x3168 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 10000 mAh | 7400 mAh | |
| Charging | 100W | 120W | |
| Wireless charging | 0W | 50W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 8GB | 12GB / 16GB / 24GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 3500 nits | 8000 nits | |
| NFC | no | yes | |
| Protection | IP68/IP69K | IP68 | |
| Dimensions | 163.4×78.3×8.6 mm | 163.7×76.8×8.7 mm | |
| Weight | 229 g | 227 g | |
| Launch price | $360 | $799 |
Camera comparison
Poco X8 Power
- Main: 50MP f/1.5
- Ultrawide: 8MP
- Front: 32MP
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Poco X8 Power
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 120 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
Poco X8 Power
- 10000 mAh
- Wired: 100W
- No wireless charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Overall performance score
We compared Poco X8 Power and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Poco X8 Power by 78.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $439. Poco X8 Power was $439 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Poco X8 Power (99/100 vs 59/100).
display
In the "display" category, the Vivo iQOO 15 Ultra notably outperforms the Poco X8 Power (99/100 vs 84/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Poco X8 Power (78/100 vs 40/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra is a bit better (92/100 vs 80/100).
portability
In the "portability" category, both devices are on the same level — 35/100.
Frequently asked questions
Which is better: the Poco X8 Power or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the Poco X8 Power by 29 points (89/100 vs 60/100).
What is the rating of the Poco X8 Power and the Vivo iQOO 15 Ultra?
The Poco X8 Power has a MobileRank rating of 60/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the Poco X8 Power or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 40/100).
Which is more powerful: the Poco X8 Power or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 59/100).
Should you choose the Poco X8 Power over the Vivo iQOO 15 Ultra?
The Poco X8 Power is a better fit for those who care about battery life. The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.