Poco X8 vs Vivo iQOO 15
The Poco X8 (2026) runs on the Qualcomm Snapdragon 6s Gen 4, while the Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $389 and $599. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 55/100 (a 31-point difference). Key differences: the Poco X8 has the bigger battery (8340 mAh vs 7000); the Vivo iQOO 15 is faster in AnTuTu (3,758,268 vs 829,894).
Profile comparison
Category scores
Poco X8
Vivo iQOO 15
What makes Poco X8 better?
- Bigger battery: 8340 vs 7000 mAh
- Cheaper at launch: $389 vs $599
- Overall rating 55/100
What makes Vivo iQOO 15 better?
- Higher AnTuTu: 3758268 vs 829894
- Better Geekbench Single: 3013 vs 1009
- Better Geekbench Multi: 9287 vs 2892
- Faster charging: 100W vs 67W
- Higher refresh rate: 144Hz vs 120Hz
- Lighter: 215g vs 223g
- Higher performance (94/100 vs 55/100)
- Better camera (78/100 vs 35/100)
- Longer battery life (85/100 vs 69/100)
- Better display (99/100 vs 84/100)
- Better portability (48/100 vs 39/100)
Comparison verdict
Comparing the Poco X8 vs the Vivo iQOO 15, the Vivo iQOO 15 scores 31 points higher (86/100 vs 55/100). In the "performance" category, the Vivo iQOO 15 leads (94/100 vs 55/100). In the "camera" category, the Vivo iQOO 15 leads (78/100 vs 35/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 69/100). Value score: Poco X8 — 40/100, Vivo iQOO 15 — 86/100; 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 significantly outperforms the Poco X8 (94/100 vs 55/100). In the "display" category, the Vivo iQOO 15 notably outperforms the Poco X8 (99/100 vs 84/100). In the "camera" category, the Vivo iQOO 15 significantly outperforms the Poco X8 (78/100 vs 35/100). In the "battery" category, the Vivo iQOO 15 notably outperforms the Poco X8 (85/100 vs 69/100). In the "portability" category, the Vivo iQOO 15 is a bit better (48/100 vs 39/100).
Specs comparison
| Specification | Poco X8 | Vivo iQOO 15 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 6s Gen 4 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 829894 | 3758268 | |
| Geekbench Single | 1009 | 3013 | |
| Geekbench Multi | 2892 | 9287 | |
| Display | 6.8" AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 1280x2772 | 1440x3168 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 8340 mAh | 7000 mAh | |
| Charging | 67W | 100W | |
| Wireless charging | 0W | 40W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 16 MP | 32 MP | |
| RAM | 6GB / 8GB / 12GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 3500 nits | 6000 nits | |
| NFC | yes | yes | |
| Protection | IP68/IP69K | IP68 | |
| Dimensions | 163.5×78.3×8.6 mm | 163.7×76.8×8.1 mm | |
| Weight | 223 g | 215 g | |
| Launch price | $389 | $599 |
Camera comparison
Poco X8
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Vivo iQOO 15
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Poco X8
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 120 Hz
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
Poco X8
- 8340 mAh
- Wired: 67W
- No wireless charging
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
Overall performance score
We compared Poco X8 and Vivo iQOO 15, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Poco X8 by 77.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $210. Poco X8 was $210 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 significantly outperforms the Poco X8 (94/100 vs 55/100).
display
In the "display" category, the Vivo iQOO 15 notably outperforms the Poco X8 (99/100 vs 84/100).
camera
In the "camera" category, the Vivo iQOO 15 significantly outperforms the Poco X8 (78/100 vs 35/100).
battery
In the "battery" category, the Vivo iQOO 15 notably outperforms the Poco X8 (85/100 vs 69/100).
portability
In the "portability" category, the Vivo iQOO 15 is a bit better (48/100 vs 39/100).
Frequently asked questions
Which is better: the Poco X8 or the Vivo iQOO 15?
The Vivo iQOO 15 significantly outperforms the Poco X8 by 31 points (86/100 vs 55/100).
What is the rating of the Poco X8 and the Vivo iQOO 15?
The Poco X8 has a MobileRank rating of 55/100, the Vivo iQOO 15 — 86/100.
Which has the better camera: the Poco X8 or the Vivo iQOO 15?
The Vivo iQOO 15 leads on camera score (78/100 vs 35/100).
Which is more powerful: the Poco X8 or the Vivo iQOO 15?
The Vivo iQOO 15 leads on performance (94/100 vs 55/100).
Should you choose the Poco X8 over the Vivo iQOO 15?
The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.