Realme C83 5G vs Vivo iQOO 15 Ultra
The Realme C83 5G (2026) runs on the MediaTek Dimensity 6400, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $130 and $799. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 47/100 (a 42-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 6000); the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 550,018); the Realme C83 5G is noticeably lighter (198g vs 227g).
Realme C83 5G
Vivo iQOO 15 Ultra
- Lighter: 198g vs 227g
- Cheaper at launch: $130 vs $799
- Better portability (61/100 vs 35/100)
- Higher AnTuTu: 4602290 vs 550018
- Better Geekbench Single: 3640 vs 803
- Better Geekbench Multi: 11033 vs 2047
- Bigger battery: 7400 vs 6000 mAh
- Faster charging: 120W vs 15W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (99/100 vs 44/100)
- Better camera (78/100 vs 30/100)
- Longer battery life (92/100 vs 60/100)
- Better display (99/100 vs 66/100)
Comparing the Realme C83 5G vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 42 points higher (89/100 vs 47/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 44/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 60/100). Value score: Realme C83 5G — 74/100, Vivo iQOO 15 Ultra — 90/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme C83 5G (99/100 vs 44/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme C83 5G (99/100 vs 66/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme C83 5G (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme C83 5G (92/100 vs 60/100). In the "portability" category, the Realme C83 5G notably outperforms the Vivo iQOO 15 Ultra (61/100 vs 35/100).
| Specification | Realme C83 5G | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 6400 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 550018 | 4602290 | |
| Geekbench Single | 803 | 3640 | |
| Geekbench Multi | 2047 | 11033 | |
| Display | 6.7" IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | 2400x1080 | 1440x3168 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 6000 mAh | 7400 mAh | |
| Charging | 15W | 120W | |
| Wireless charging | — | 50W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 8 MP | 32 MP | |
| RAM | 4GB / 6GB | 12GB / 16GB / 24GB | |
| Storage | 64GB / 128GB | 256GB / 512GB / 1TB | |
| OS | Android 15 | Android 16 | |
| Brightness (peak) | — | 8000 nits | |
| NFC | — | yes | |
| Protection | — | IP68 | |
| Dimensions | — | 163.7×76.8×8.7 mm | |
| Weight | 198 g | 227 g | |
| Launch price | $130 | $799 |
Realme C83 5G
- Main: 50MP f/1.8
- Front: 8MP
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Realme C83 5G
- 6.7" IPS LCD
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Realme C83 5G
- 6000 mAh
- Wired: 15W
- Wireless charging: no data
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
We compared Realme C83 5G and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Realme C83 5G by 88.0% in our overall performance rating.
Launch price difference: $669. Realme C83 5G was $669 cheaper at launch.
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme C83 5G (99/100 vs 44/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme C83 5G (99/100 vs 66/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme C83 5G (78/100 vs 30/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme C83 5G (92/100 vs 60/100).
portability
In the "portability" category, the Realme C83 5G notably outperforms the Vivo iQOO 15 Ultra (61/100 vs 35/100).
Which is better: the Realme C83 5G or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the Realme C83 5G by 42 points (89/100 vs 47/100).
What is the rating of the Realme C83 5G and the Vivo iQOO 15 Ultra?
The Realme C83 5G has a MobileRank rating of 47/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the Realme C83 5G or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 30/100).
Which is more powerful: the Realme C83 5G or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 44/100).
Should you choose the Realme C83 5G over the Vivo iQOO 15 Ultra?
The Realme C83 5G is a better fit for everyday use. The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.