Poco M8x vs Vivo X300 Ultra
The Poco M8x (2026) runs on the Qualcomm Snapdragon 4 Gen 5, while the Vivo X300 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Vivo X300 Ultra leads — 91/100 vs 45/100 (a 46-point difference). Key differences: the Vivo X300 Ultra has the bigger battery (7000 mAh vs 6000); the main camera is 50 MP vs 200 MP; the Vivo X300 Ultra is faster in AnTuTu (4,247,433 vs 624,021).
Profile comparison
Category scores
Poco M8x
Vivo X300 Ultra
What makes Poco M8x better?
- Overall rating 45/100
What makes Vivo X300 Ultra better?
- Higher AnTuTu: 4247433 vs 624021
- Better Geekbench Single: 3639 vs 976
- Better Geekbench Multi: 11047 vs 2250
- Bigger battery: 7000 vs 6000 mAh
- Faster charging: 100W vs 33W
- Better main camera: 200MP vs 50MP
- Higher performance (99/100 vs 49/100)
- Better camera (96/100 vs 30/100)
- Longer battery life (85/100 vs 53/100)
- Better display (89/100 vs 55/100)
Comparison verdict
Comparing the Poco M8x vs the Vivo X300 Ultra, the Vivo X300 Ultra scores 46 points higher (91/100 vs 45/100). In the "performance" category, the Vivo X300 Ultra leads (99/100 vs 49/100). In the "camera" category, the Vivo X300 Ultra leads (96/100 vs 30/100). In the "battery" category, the Vivo X300 Ultra leads (85/100 vs 53/100). In the "performance" category, the Vivo X300 Ultra significantly outperforms the Poco M8x (99/100 vs 49/100). In the "display" category, the Vivo X300 Ultra significantly outperforms the Poco M8x (89/100 vs 55/100). In the "camera" category, the Vivo X300 Ultra significantly outperforms the Poco M8x (96/100 vs 30/100). In the "battery" category, the Vivo X300 Ultra significantly outperforms the Poco M8x (85/100 vs 53/100).
Specs comparison
| Specification | Poco M8x | Vivo X300 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 4 Gen 5 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 624021 | 4247433 | |
| Geekbench Single | 976 | 3639 | |
| Geekbench Multi | 2250 | 11047 | |
| Display | 6.9" IPS LCD | 6.8" LTPO OLED | |
| Resolution | 720x1600 | 3168x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6000 mAh | 7000 mAh | |
| Charging | 33W | 100W | |
| Wireless charging | 0W | 40W | |
| DXOMark (camera) | — | 170 | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 200 MP | |
| Front camera | 8 MP | 32 MP | |
| RAM | 4GB | 12GB / 16GB | |
| Storage | 128GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| NFC | yes | yes | |
| Protection | IP64 | IP69 | |
| Dimensions | — | 163.0×76.8×8.2 mm | |
| Weight | — | 230 g | |
| Launch price | — | $950 |
Camera comparison
Poco M8x
- Main: 50MP f/1.8
- Front: 8MP
Vivo X300 Ultra
- Main: 200MP f/1.6
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 32MP
Display comparison
Poco M8x
- 6.9" IPS LCD
- Resolution: 720x1600
- Refresh rate: 120 Hz
Vivo X300 Ultra
- 6.8" LTPO OLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Battery and charging
Poco M8x
- 6000 mAh
- Wired: 33W
- No wireless charging
Vivo X300 Ultra
- 7000 mAh
- NanoReview test: web browsing 10:18 hrs, total 29:11 hrs
- Wired: 100W
- Wireless: 40W
Overall performance score
We compared Poco M8x and Vivo X300 Ultra, covering their specs and all relevant benchmarks.
Vivo X300 Ultra leads Poco M8x by 85.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Poco M8x
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo X300 Ultra significantly outperforms the Poco M8x (99/100 vs 49/100).
display
In the "display" category, the Vivo X300 Ultra significantly outperforms the Poco M8x (89/100 vs 55/100).
camera
In the "camera" category, the Vivo X300 Ultra significantly outperforms the Poco M8x (96/100 vs 30/100).
battery
In the "battery" category, the Vivo X300 Ultra significantly outperforms the Poco M8x (85/100 vs 53/100).
Frequently asked questions
Which is better: the Poco M8x or the Vivo X300 Ultra?
The Vivo X300 Ultra significantly outperforms the Poco M8x by 46 points (91/100 vs 45/100).
What is the rating of the Poco M8x and the Vivo X300 Ultra?
The Poco M8x has a MobileRank rating of 45/100, the Vivo X300 Ultra — 91/100.
Which has the better camera: the Poco M8x or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on camera score (96/100 vs 30/100).
Which is more powerful: the Poco M8x or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on performance (99/100 vs 49/100).
Should you choose the Poco M8x over the Vivo X300 Ultra?
The Vivo X300 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.