Samsung Galaxy C55 vs Xiaomi 15 Ultra
The Samsung Galaxy C55 (2024) runs on the Qualcomm Snapdragon 7 Gen 1, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 55/100 (a 30-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 5000); the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 859,516); the Samsung Galaxy C55 is noticeably lighter (180g vs 225g).
Profile comparison
Category scores
Samsung Galaxy C55
Xiaomi 15 Ultra
What makes Samsung Galaxy C55 better?
- Lighter: 180g vs 225g
- Better portability (73/100 vs 29/100)
What makes Xiaomi 15 Ultra better?
- Higher AnTuTu: 3030376 vs 859516
- Better Geekbench Single: 3050 vs 1044
- Better Geekbench Multi: 10200 vs 2785
- Bigger battery: 6000 vs 5000 mAh
- Faster charging: 90W vs 45W
- Higher performance (92/100 vs 55/100)
- Better camera (87/100 vs 44/100)
- Longer battery life (80/100 vs 48/100)
- Better display (90/100 vs 79/100)
Comparison verdict
Comparing the Samsung Galaxy C55 vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 30 points higher (85/100 vs 55/100). In the "performance" category, the Xiaomi 15 Ultra leads (92/100 vs 55/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 44/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 48/100). In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy C55 (92/100 vs 55/100). In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 79/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy C55 (87/100 vs 44/100). In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy C55 (80/100 vs 48/100). In the "portability" category, the Samsung Galaxy C55 significantly outperforms the Xiaomi 15 Ultra (73/100 vs 29/100).
Specs comparison
| Specification | Samsung Galaxy C55 | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 7 Gen 1 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 859516 | 3030376 | |
| Geekbench Single | 1044 | 3050 | |
| Geekbench Multi | 2785 | 10200 | |
| Display | 6.7" Super AMOLED+ | 6.7" LTPO AMOLED | |
| Resolution | 1080x2400 | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5000 mAh | 6000 mAh | |
| Charging | 45W | 90W | |
| Wireless charging | 0W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 50 MP | 32 MP | |
| RAM | 8GB / 12GB | 16GB | |
| Storage | 256GB | 256GB / 512GB / 1TB | |
| OS | Android 14, One UI 6.1 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 1000 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | — | IP68 | |
| Dimensions | 163.9×76.5×7.8 mm | 161.3×75.3×9.4 mm | |
| Weight | 180 g | 225 g | |
| Launch price | — | $999 |
Camera comparison
Samsung Galaxy C55
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 50MP
Xiaomi 15 Ultra
- Main: 50MP f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Samsung Galaxy C55
- 6.7" Super AMOLED+
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Battery and charging
Samsung Galaxy C55
- 5000 mAh
- Wired: 45W
- No wireless charging
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
Overall performance score
We compared Samsung Galaxy C55 and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads Samsung Galaxy C55 by 71.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Samsung Galaxy C55
Price unknownDetailed category analysis
performance
In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy C55 (92/100 vs 55/100).
display
In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 79/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy C55 (87/100 vs 44/100).
battery
In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy C55 (80/100 vs 48/100).
portability
In the "portability" category, the Samsung Galaxy C55 significantly outperforms the Xiaomi 15 Ultra (73/100 vs 29/100).
Frequently asked questions
Which is better: the Samsung Galaxy C55 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy C55 by 30 points (85/100 vs 55/100).
What is the rating of the Samsung Galaxy C55 and the Xiaomi 15 Ultra?
The Samsung Galaxy C55 has a MobileRank rating of 55/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Samsung Galaxy C55 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 44/100).
Which is more powerful: the Samsung Galaxy C55 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (92/100 vs 55/100).
Should you choose the Samsung Galaxy C55 over the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.