Realme C55 vs Vivo X300 Ultra
The Realme C55 (2023) runs on the MediaTek Helio G88, 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 39/100 (a 52-point difference). Key differences: the Vivo X300 Ultra has the bigger battery (7000 mAh vs 5000); the main camera is 64 MP vs 200 MP; the Vivo X300 Ultra is faster in AnTuTu (4,247,433 vs 365,001); the Realme C55 is noticeably lighter (189g vs 230g).
Profile comparison
Category scores
Realme C55
Vivo X300 Ultra
What makes Realme C55 better?
- Lighter: 189g vs 230g
- Better portability (66/100 vs 39/100)
What makes Vivo X300 Ultra better?
- Higher AnTuTu: 4247433 vs 365001
- Better Geekbench Single: 3639 vs 430
- Better Geekbench Multi: 11047 vs 1375
- Bigger battery: 7000 vs 5000 mAh
- Faster charging: 100W vs 33W
- Better main camera: 200MP vs 64MP
- Higher refresh rate: 120Hz vs 90Hz
- Higher performance (99/100 vs 29/100)
- Better camera (96/100 vs 37/100)
- Longer battery life (85/100 vs 46/100)
- Better display (89/100 vs 54/100)
Comparison verdict
Comparing the Realme C55 vs the Vivo X300 Ultra, the Vivo X300 Ultra scores 52 points higher (91/100 vs 39/100). In the "performance" category, the Vivo X300 Ultra leads (99/100 vs 29/100). In the "camera" category, the Vivo X300 Ultra leads (96/100 vs 37/100). In the "battery" category, the Vivo X300 Ultra leads (85/100 vs 46/100). In the "performance" category, the Vivo X300 Ultra significantly outperforms the Realme C55 (99/100 vs 29/100). In the "display" category, the Vivo X300 Ultra significantly outperforms the Realme C55 (89/100 vs 54/100). In the "camera" category, the Vivo X300 Ultra significantly outperforms the Realme C55 (96/100 vs 37/100). In the "battery" category, the Vivo X300 Ultra significantly outperforms the Realme C55 (85/100 vs 46/100). In the "portability" category, the Realme C55 notably outperforms the Vivo X300 Ultra (66/100 vs 39/100).
Specs comparison
| Specification | Realme C55 | Vivo X300 Ultra | |
|---|---|---|---|
| Processor | MediaTek Helio G88 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 365001 | 4247433 | |
| Geekbench Single | 430 | 3639 | |
| Geekbench Multi | 1375 | 11047 | |
| Display | 6.7" IPS LCD | 6.8" LTPO OLED | |
| Resolution | 1080x2400 | 3168x1440 | |
| Refresh rate | 90 Hz | 120 Hz | |
| Battery | 5000 mAh | 7000 mAh | |
| Charging | 33W | 100W | |
| Wireless charging | 0W | 40W | |
| DXOMark (camera) | — | 170 | |
| Main camera | 64 MP | 200 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 200 MP | |
| Front camera | 8 MP | 32 MP | |
| RAM | 4GB / 6GB / 8GB | 12GB / 16GB | |
| Storage | 64GB / 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 13, Realme UI 4.0 | Android 16 | |
| Brightness (peak) | 680 nits | — | |
| NFC | yes | yes | |
| Protection | — | IP69 | |
| Dimensions | 165.6×75.9×7.9 mm | 163.0×76.8×8.2 mm | |
| Weight | 189 g | 230 g | |
| Launch price | — | $950 |
Camera comparison
Realme C55
- Main: 64MP
- Front: 8MP
Vivo X300 Ultra
- Main: 200MP f/1.6
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 32MP
Display comparison
Realme C55
- 6.7" IPS LCD
- Resolution: 1080x2400
- Refresh rate: 90 Hz
Vivo X300 Ultra
- 6.8" LTPO OLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Battery and charging
Realme C55
- 5000 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 Realme C55 and Vivo X300 Ultra, covering their specs and all relevant benchmarks.
Vivo X300 Ultra leads Realme C55 by 91.4% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Realme C55
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo X300 Ultra significantly outperforms the Realme C55 (99/100 vs 29/100).
display
In the "display" category, the Vivo X300 Ultra significantly outperforms the Realme C55 (89/100 vs 54/100).
camera
In the "camera" category, the Vivo X300 Ultra significantly outperforms the Realme C55 (96/100 vs 37/100).
battery
In the "battery" category, the Vivo X300 Ultra significantly outperforms the Realme C55 (85/100 vs 46/100).
portability
In the "portability" category, the Realme C55 notably outperforms the Vivo X300 Ultra (66/100 vs 39/100).
Frequently asked questions
Which is better: the Realme C55 or the Vivo X300 Ultra?
The Vivo X300 Ultra significantly outperforms the Realme C55 by 52 points (91/100 vs 39/100).
What is the rating of the Realme C55 and the Vivo X300 Ultra?
The Realme C55 has a MobileRank rating of 39/100, the Vivo X300 Ultra — 91/100.
Which has the better camera: the Realme C55 or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on camera score (96/100 vs 37/100).
Which is more powerful: the Realme C55 or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on performance (99/100 vs 29/100).
Should you choose the Realme C55 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.