Realme C83 5G vs Samsung Galaxy S25 Ultra
The Realme C83 5G (2026) runs on the MediaTek Dimensity 6400, while the Samsung Galaxy S25 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $130 and $1299. By overall MobileRank rating, the Samsung Galaxy S25 Ultra leads — 80/100 vs 47/100 (a 33-point difference). Key differences: the Realme C83 5G has the bigger battery (6000 mAh vs 5000); the main camera is 50 MP vs 200 MP; the Samsung Galaxy S25 Ultra is faster in AnTuTu (3,128,552 vs 581,041); the Realme C83 5G is noticeably lighter (198g vs 218g).
Profile comparison
Category scores
Realme C83 5G
Samsung Galaxy S25 Ultra
What makes Realme C83 5G better?
- Bigger battery: 6000 vs 5000 mAh
- Lighter: 198g vs 218g
- Cheaper at launch: $130 vs $1299
- Longer battery life (60/100 vs 56/100)
- Better portability (61/100 vs 46/100)
What makes Samsung Galaxy S25 Ultra better?
- Higher AnTuTu: 3128552 vs 581041
- Better Geekbench Single: 3100 vs 803
- Better Geekbench Multi: 9760 vs 2047
- Faster charging: 45W vs 15W
- Better main camera: 200MP vs 50MP
- Higher performance (92/100 vs 45/100)
- Better camera (81/100 vs 30/100)
- Better display (88/100 vs 66/100)
Comparison verdict
Comparing the Realme C83 5G vs the Samsung Galaxy S25 Ultra, the Samsung Galaxy S25 Ultra scores 33 points higher (80/100 vs 47/100). In the "performance" category, the Samsung Galaxy S25 Ultra leads (92/100 vs 45/100). In the "camera" category, the Samsung Galaxy S25 Ultra leads (81/100 vs 30/100). Value score: Realme C83 5G — 74/100, Samsung Galaxy S25 Ultra — 70/100; 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 Samsung Galaxy S25 Ultra significantly outperforms the Realme C83 5G (92/100 vs 45/100). In the "display" category, the Samsung Galaxy S25 Ultra notably outperforms the Realme C83 5G (88/100 vs 66/100). In the "camera" category, the Samsung Galaxy S25 Ultra significantly outperforms the Realme C83 5G (81/100 vs 30/100). In the "battery" category, the Realme C83 5G and the Samsung Galaxy S25 Ultra are nearly equal (60/100 vs 56/100). In the "portability" category, the Realme C83 5G notably outperforms the Samsung Galaxy S25 Ultra (61/100 vs 46/100).
Specs comparison
| Specification | Realme C83 5G | Samsung Galaxy S25 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 6400 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 581041 | 3128552 | |
| Geekbench Single | 803 | 3100 | |
| Geekbench Multi | 2047 | 9760 | |
| Display | 6.7" IPS LCD | 6.9" Dynamic AMOLED 2X | |
| Resolution | 2400x1080 | 3120x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6000 mAh | 5000 mAh | |
| Charging | 15W | 45W | |
| Wireless charging | — | 15W | |
| DXOMark (camera) | — | 151 | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 8 MP | 12 MP | |
| RAM | 4GB / 6GB | 12GB / 16GB | |
| Storage | 64GB / 128GB | 256GB / 512GB / 1TB | |
| OS | Android 15 | Android 15 / One UI 7 | |
| Brightness (peak) | — | 2600 nits | |
| NFC | — | yes | |
| Protection | — | IP68 | |
| Dimensions | — | 162.8×77.6×8.2 mm | |
| Weight | 198 g | 218 g | |
| Launch price | $130 | $1299 |
Camera comparison
Realme C83 5G
- Main: 50MP f/1.8
- Front: 8MP
Samsung Galaxy S25 Ultra
- Main: 200MP f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 12MP
Display comparison
Realme C83 5G
- 6.7" IPS LCD
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Samsung Galaxy S25 Ultra
- 6.9" Dynamic AMOLED 2X
- Resolution: 3120x1440
- Refresh rate: 120 Hz
Battery and charging
Realme C83 5G
- 6000 mAh
- Wired: 15W
- Wireless charging: no data
Samsung Galaxy S25 Ultra
- 5000 mAh
- NanoReview test: web browsing 11:10 hrs, total 28:43 hrs
- Wired: 45W
- Wireless: 15W
Overall performance score
We compared Realme C83 5G and Samsung Galaxy S25 Ultra, covering their specs and all relevant benchmarks.
Samsung Galaxy S25 Ultra leads Realme C83 5G by 81.4% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $1169. Realme C83 5G was $1169 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Samsung Galaxy S25 Ultra significantly outperforms the Realme C83 5G (92/100 vs 45/100).
display
In the "display" category, the Samsung Galaxy S25 Ultra notably outperforms the Realme C83 5G (88/100 vs 66/100).
camera
In the "camera" category, the Samsung Galaxy S25 Ultra significantly outperforms the Realme C83 5G (81/100 vs 30/100).
battery
In the "battery" category, the Realme C83 5G and the Samsung Galaxy S25 Ultra are nearly equal (60/100 vs 56/100).
portability
In the "portability" category, the Realme C83 5G notably outperforms the Samsung Galaxy S25 Ultra (61/100 vs 46/100).
Frequently asked questions
Which is better: the Realme C83 5G or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra significantly outperforms the Realme C83 5G by 33 points (80/100 vs 47/100).
What is the rating of the Realme C83 5G and the Samsung Galaxy S25 Ultra?
The Realme C83 5G has a MobileRank rating of 47/100, the Samsung Galaxy S25 Ultra — 80/100.
Which has the better camera: the Realme C83 5G or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra leads on camera score (81/100 vs 30/100).
Which is more powerful: the Realme C83 5G or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra leads on performance (92/100 vs 45/100).
Should you choose the Realme C83 5G over the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra is a better fit for gamers and power users, mobile photography enthusiasts.