Realme P4x vs Vivo X300 Ultra
The Realme P4x (2025) runs on the MediaTek Dimensity 7400 Ultra, while the Vivo X300 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $190 and $950. By overall MobileRank rating, the Vivo X300 Ultra leads — 91/100 vs 52/100 (a 39-point difference). Key differences: the main camera is 50 MP vs 200 MP; the Vivo X300 Ultra is faster in AnTuTu (4,247,433 vs 876,440); the Vivo X300 Ultra has NFC for contactless payments, the Realme P4x doesn't; the Realme P4x is noticeably lighter (208g vs 230g).
Profile comparison
Category scores
Realme P4x
Vivo X300 Ultra
What makes Realme P4x better?
- Higher refresh rate: 144Hz vs 120Hz
- Lighter: 208g vs 230g
- Cheaper at launch: $190 vs $950
- Better portability (50/100 vs 39/100)
What makes Vivo X300 Ultra better?
- Higher AnTuTu: 4247433 vs 876440
- Better Geekbench Single: 3639 vs 1050
- Better Geekbench Multi: 11047 vs 2939
- Faster charging: 100W vs 45W
- Better main camera: 200MP vs 50MP
- Higher performance (99/100 vs 56/100)
- Better camera (96/100 vs 30/100)
- Longer battery life (85/100 vs 60/100)
- Better display (89/100 vs 76/100)
Comparison verdict
Comparing the Realme P4x vs the Vivo X300 Ultra, the Vivo X300 Ultra scores 39 points higher (91/100 vs 52/100). In the "performance" category, the Vivo X300 Ultra leads (99/100 vs 56/100). 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 60/100). Value score: Realme P4x — 68/100, Vivo X300 Ultra — 94/100; 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 X300 Ultra significantly outperforms the Realme P4x (99/100 vs 56/100). In the "display" category, the Vivo X300 Ultra is a bit better (89/100 vs 76/100). In the "camera" category, the Vivo X300 Ultra significantly outperforms the Realme P4x (96/100 vs 30/100). In the "battery" category, the Vivo X300 Ultra notably outperforms the Realme P4x (85/100 vs 60/100). In the "portability" category, the Realme P4x is a bit better (50/100 vs 39/100).
Specs comparison
| Specification | Realme P4x | Vivo X300 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 7400 Ultra | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 876440 | 4247433 | |
| Geekbench Single | 1050 | 3639 | |
| Geekbench Multi | 2939 | 11047 | |
| Display | 6.7" IPS LCD | 6.8" LTPO OLED | |
| Resolution | 1080x2400 | 3168x1440 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7000 mAh | 7000 mAh | |
| Charging | 45W | 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 | 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 15, Realme UI 6.0 | Android 16 | |
| Brightness (peak) | 1000 nits | — | |
| NFC | no | yes | |
| Protection | IP64 | IP69 | |
| Dimensions | 165.9×76.0×8.4 mm | 163.0×76.8×8.2 mm | |
| Weight | 208 g | 230 g | |
| Launch price | $190 | $950 |
Camera comparison
Realme P4x
- Main: 50MP f/1.8
- Front: 8MP
Vivo X300 Ultra
- Main: 200MP f/1.6
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 32MP
Display comparison
Realme P4x
- 6.7" IPS LCD
- Resolution: 1080x2400
- Refresh rate: 144 Hz
Vivo X300 Ultra
- 6.8" LTPO OLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Battery and charging
Realme P4x
- 7000 mAh
- Wired: 45W
- 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 Realme P4x and Vivo X300 Ultra, covering their specs and all relevant benchmarks.
Vivo X300 Ultra leads Realme P4x by 79.4% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $760. Realme P4x was $760 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo X300 Ultra significantly outperforms the Realme P4x (99/100 vs 56/100).
display
In the "display" category, the Vivo X300 Ultra is a bit better (89/100 vs 76/100).
camera
In the "camera" category, the Vivo X300 Ultra significantly outperforms the Realme P4x (96/100 vs 30/100).
battery
In the "battery" category, the Vivo X300 Ultra notably outperforms the Realme P4x (85/100 vs 60/100).
portability
In the "portability" category, the Realme P4x is a bit better (50/100 vs 39/100).
Frequently asked questions
Which is better: the Realme P4x or the Vivo X300 Ultra?
The Vivo X300 Ultra significantly outperforms the Realme P4x by 39 points (91/100 vs 52/100).
What is the rating of the Realme P4x and the Vivo X300 Ultra?
The Realme P4x has a MobileRank rating of 52/100, the Vivo X300 Ultra — 91/100.
Which has the better camera: the Realme P4x or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on camera score (96/100 vs 30/100).
Which is more powerful: the Realme P4x or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on performance (99/100 vs 56/100).
Should you choose the Realme P4x 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.