Realme C83 5G vs Vivo X300 Ultra
The Realme C83 5G (2026) runs on the MediaTek Dimensity 6400, while the Vivo X300 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $130 and $950. By overall MobileRank rating, the Vivo X300 Ultra leads — 91/100 vs 47/100 (a 44-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 550,018); the Realme C83 5G is noticeably lighter (198g vs 230g).
Realme C83 5G
Vivo X300 Ultra
- Lighter: 198g vs 230g
- Cheaper at launch: $130 vs $950
- Better portability (61/100 vs 39/100)
- Higher AnTuTu: 4247433 vs 550018
- Better Geekbench Single: 3640 vs 803
- Better Geekbench Multi: 11033 vs 2047
- Bigger battery: 7000 vs 6000 mAh
- Faster charging: 100W vs 15W
- Better main camera: 200MP vs 50MP
- Higher performance (99/100 vs 44/100)
- Better camera (96/100 vs 30/100)
- Longer battery life (85/100 vs 60/100)
- Better display (89/100 vs 66/100)
Comparing the Realme C83 5G vs the Vivo X300 Ultra, the Vivo X300 Ultra scores 44 points higher (91/100 vs 47/100). In the "performance" category, the Vivo X300 Ultra leads (99/100 vs 44/100). 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 C83 5G — 74/100, Vivo X300 Ultra — 94/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Vivo X300 Ultra significantly outperforms the Realme C83 5G (99/100 vs 44/100). In the "display" category, the Vivo X300 Ultra notably outperforms the Realme C83 5G (89/100 vs 66/100). In the "camera" category, the Vivo X300 Ultra significantly outperforms the Realme C83 5G (96/100 vs 30/100). In the "battery" category, the Vivo X300 Ultra notably outperforms the Realme C83 5G (85/100 vs 60/100). In the "portability" category, the Realme C83 5G notably outperforms the Vivo X300 Ultra (61/100 vs 39/100).
| Specification | Realme C83 5G | Vivo X300 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 6400 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 550018 | 4247433 | |
| Geekbench Single | 803 | 3640 | |
| Geekbench Multi | 2047 | 11033 | |
| Display | 6.7" IPS LCD | 6.8" LTPO OLED | |
| Resolution | 2400x1080 | 3168x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6000 mAh | 7000 mAh | |
| Charging | 15W | 100W | |
| Wireless charging | — | 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 / 6GB | 12GB / 16GB | |
| Storage | 64GB / 128GB | 256GB / 512GB / 1TB | |
| OS | Android 15 | Android 16 | |
| NFC | — | yes | |
| Protection | — | IP69 | |
| Dimensions | — | 163.0×76.8×8.2 mm | |
| Weight | 198 g | 230 g | |
| Launch price | $130 | $950 |
Realme C83 5G
- Main: 50MP f/1.8
- Front: 8MP
Vivo X300 Ultra
- Main: 200MP f/f/1.6
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 32MP
Realme C83 5G
- 6.7" IPS LCD
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Vivo X300 Ultra
- 6.8" LTPO OLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Realme C83 5G
- 6000 mAh
- Wired: 15W
- Wireless charging: no data
Vivo X300 Ultra
- 7000 mAh
- NanoReview test: web browsing 10:18 hrs, total 29:11 hrs
- Wired: 100W
- Wireless: 40W
We compared Realme C83 5G and Vivo X300 Ultra, covering their specs and all relevant benchmarks.
Vivo X300 Ultra leads Realme C83 5G by 87.1% in our overall performance rating.
Launch price difference: $820. Realme C83 5G was $820 cheaper at launch.
performance
In the "performance" category, the Vivo X300 Ultra significantly outperforms the Realme C83 5G (99/100 vs 44/100).
display
In the "display" category, the Vivo X300 Ultra notably outperforms the Realme C83 5G (89/100 vs 66/100).
camera
In the "camera" category, the Vivo X300 Ultra significantly outperforms the Realme C83 5G (96/100 vs 30/100).
battery
In the "battery" category, the Vivo X300 Ultra notably outperforms the Realme C83 5G (85/100 vs 60/100).
portability
In the "portability" category, the Realme C83 5G notably outperforms the Vivo X300 Ultra (61/100 vs 39/100).
Which is better: the Realme C83 5G or the Vivo X300 Ultra?
The Vivo X300 Ultra significantly outperforms the Realme C83 5G by 44 points (91/100 vs 47/100).
What is the rating of the Realme C83 5G and the Vivo X300 Ultra?
The Realme C83 5G has a MobileRank rating of 47/100, the Vivo X300 Ultra — 91/100.
Which has the better camera: the Realme C83 5G or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on camera score (96/100 vs 30/100).
Which is more powerful: the Realme C83 5G or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on performance (99/100 vs 44/100).
Should you choose the Realme C83 5G over the Vivo X300 Ultra?
The Realme C83 5G is a better fit for everyday use. 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.