OnePlus 15 vs Samsung Galaxy S25 Ultra
The OnePlus 15 (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Samsung Galaxy S25 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $799 and $1299. By overall MobileRank rating, the OnePlus 15 leads — 86/100 vs 79/100 (a 7-point difference). Key differences: the OnePlus 15 has the bigger battery (6500 mAh vs 5000); the main camera is 50 MP vs 200 MP; the OnePlus 15 is faster in AnTuTu (3,606,149 vs 2,780,751).
Profile comparison
Category scores
OnePlus 15
Samsung Galaxy S25 Ultra
What makes OnePlus 15 better?
- Higher AnTuTu: 3606149 vs 2780751
- Better Geekbench Single: 3639 vs 3100
- Better Geekbench Multi: 11047 vs 9760
- Bigger battery: 6500 vs 5000 mAh
- Faster charging: 120W vs 45W
- Faster wireless charging: 50W vs 15W
- Lighter: 213g vs 218g
- Cheaper at launch: $799 vs $1299
- Higher performance (97/100 vs 91/100)
- Longer battery life (89/100 vs 56/100)
- Better portability (50/100 vs 46/100)
What makes Samsung Galaxy S25 Ultra better?
- Better main camera: 200MP vs 50MP
- Better camera (81/100 vs 78/100)
- Better display (88/100 vs 84/100)
Comparison verdict
Comparing the OnePlus 15 vs the Samsung Galaxy S25 Ultra, the OnePlus 15 scores 7 points higher (86/100 vs 79/100). In the "battery" category, the OnePlus 15 leads (89/100 vs 56/100). Value score: OnePlus 15 — 86/100, Samsung Galaxy S25 Ultra — 68/100; 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 OnePlus 15 is a bit better (97/100 vs 91/100). In the "display" category, the Samsung Galaxy S25 Ultra and the OnePlus 15 are nearly equal (88/100 vs 84/100). In the "camera" category, the Samsung Galaxy S25 Ultra and the OnePlus 15 are nearly equal (81/100 vs 78/100). In the "battery" category, the OnePlus 15 significantly outperforms the Samsung Galaxy S25 Ultra (89/100 vs 56/100). In the "portability" category, the OnePlus 15 and the Samsung Galaxy S25 Ultra are nearly equal (50/100 vs 46/100).
Specs comparison
| Specification | OnePlus 15 | Samsung Galaxy S25 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3606149 | 2780751 | |
| Geekbench Single | 3639 | 3100 | |
| Geekbench Multi | 11047 | 9760 | |
| Display | 6.8" AMOLED | 6.9" Dynamic AMOLED 2X | |
| Resolution | 1272x2772 | 3120x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6500 mAh | 5000 mAh | |
| Charging | 120W | 45W | |
| Wireless charging | 50W | 15W | |
| DXOMark (camera) | — | 151 | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 50 MP | 50 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 32 MP | 12 MP | |
| RAM | 12GB / 16GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 16, OxygenOS 16 (Global), ColorOS 16 (China) | Android 15 / One UI 7 | |
| Brightness (peak) | 1800 nits | 2600 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 161.4×76.7×8.1 mm | 162.8×77.6×8.2 mm | |
| Weight | 213 g | 218 g | |
| Launch price | $799 | $1299 |
Camera comparison
OnePlus 15
- Main: 50MP f/1.8
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Samsung Galaxy S25 Ultra
- Main: 200MP f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 12MP
Display comparison
OnePlus 15
- 6.8" AMOLED
- Resolution: 1272x2772
- Refresh rate: 120 Hz
Samsung Galaxy S25 Ultra
- 6.9" Dynamic AMOLED 2X
- Resolution: 3120x1440
- Refresh rate: 120 Hz
Battery and charging
OnePlus 15
- 6500 mAh
- Wired: 120W
- Wireless: 50W
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 OnePlus 15 and Samsung Galaxy S25 Ultra, covering their specs and all relevant benchmarks.
OnePlus 15 leads Samsung Galaxy S25 Ultra by 29.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $500. OnePlus 15 was $500 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the OnePlus 15 is a bit better (97/100 vs 91/100).
display
In the "display" category, the Samsung Galaxy S25 Ultra and the OnePlus 15 are nearly equal (88/100 vs 84/100).
camera
In the "camera" category, the Samsung Galaxy S25 Ultra and the OnePlus 15 are nearly equal (81/100 vs 78/100).
battery
In the "battery" category, the OnePlus 15 significantly outperforms the Samsung Galaxy S25 Ultra (89/100 vs 56/100).
portability
In the "portability" category, the OnePlus 15 and the Samsung Galaxy S25 Ultra are nearly equal (50/100 vs 46/100).
Frequently asked questions
Which is better: the OnePlus 15 or the Samsung Galaxy S25 Ultra?
The OnePlus 15 edges out the Samsung Galaxy S25 Ultra by just 7 points — the two devices are very close in overall level.
What is the rating of the OnePlus 15 and the Samsung Galaxy S25 Ultra?
The OnePlus 15 has a MobileRank rating of 86/100, the Samsung Galaxy S25 Ultra — 79/100.
Which is more powerful: the OnePlus 15 or the Samsung Galaxy S25 Ultra?
The OnePlus 15 leads on performance (97/100 vs 91/100).
Should you choose the OnePlus 15 over the Samsung Galaxy S25 Ultra?
The OnePlus 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Samsung Galaxy S25 Ultra is a better fit for gamers and power users, mobile photography enthusiasts.