OnePlus 15 vs Samsung Galaxy S20
The OnePlus 15 (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Samsung Galaxy S20 (2020) runs on the Samsung Exynos 990; launch prices were $799 and $999. By overall MobileRank rating, the OnePlus 15 leads — 86/100 vs 47/100 (a 39-point difference). Key differences: the OnePlus 15 has the bigger battery (6500 mAh vs 4000); the main camera is 50 MP vs 12 MP; the OnePlus 15 is faster in AnTuTu (3,646,161 vs 888,046); the Samsung Galaxy S20 is noticeably lighter (163g vs 213g).
OnePlus 15
Samsung Galaxy S20
- Higher AnTuTu: 3646161 vs 888046
- Better Geekbench Single: 3640 vs 1222
- Better Geekbench Multi: 11033 vs 3060
- Bigger battery: 6500 vs 4000 mAh
- Better main camera: 50MP vs 12MP
- Cheaper at launch: $799 vs $999
- Higher performance (97/100 vs 57/100)
- Better camera (78/100 vs 11/100)
- Longer battery life (89/100 vs 32/100)
- Lighter: 163g vs 213g
- Better display (85/100 vs 84/100)
- Better portability (96/100 vs 50/100)
Comparing the OnePlus 15 vs the Samsung Galaxy S20, the OnePlus 15 scores 39 points higher (86/100 vs 47/100). In the "performance" category, the OnePlus 15 leads (97/100 vs 57/100). In the "camera" category, the OnePlus 15 leads (78/100 vs 11/100). In the "battery" category, the OnePlus 15 leads (89/100 vs 32/100). Value score: OnePlus 15 — 84/100, Samsung Galaxy S20 — 6/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the OnePlus 15 significantly outperforms the Samsung Galaxy S20 (97/100 vs 57/100). In the "display" category, the Samsung Galaxy S20 and the OnePlus 15 are nearly equal (85/100 vs 84/100). In the "camera" category, the OnePlus 15 significantly outperforms the Samsung Galaxy S20 (78/100 vs 11/100). In the "battery" category, the OnePlus 15 significantly outperforms the Samsung Galaxy S20 (89/100 vs 32/100). In the "portability" category, the Samsung Galaxy S20 significantly outperforms the OnePlus 15 (96/100 vs 50/100).
| Specification | OnePlus 15 | Samsung Galaxy S20 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Samsung Exynos 990 | |
| AnTuTu | 3646161 | 888046 | |
| Geekbench Single | 3640 | 1222 | |
| Geekbench Multi | 11033 | 3060 | |
| Display | 6.8" AMOLED | 6.2" AMOLED | |
| Resolution | 1272x2772 | — | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6500 mAh | 4000 mAh | |
| Charging | 120W | — | |
| Wireless charging | 50W | — | |
| Main camera | 50 MP | 12 MP | |
| Ultrawide | 50 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 32 MP | 10 MP | |
| RAM | 12GB / 16GB | 8GB / 12GB | |
| Storage | 256GB / 512GB | 128GB | |
| OS | Android 16, OxygenOS 16 (Global), ColorOS 16 (China) | — | |
| Brightness (peak) | 1800 nits | — | |
| NFC | yes | — | |
| Protection | IP68 | — | |
| Dimensions | 161.4×76.7×8.1 mm | — | |
| Weight | 213 g | 163 g | |
| Launch price | $799 | $999 |
OnePlus 15
- Main: 50MP
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Samsung Galaxy S20
- Main: 12MP
- Front: 10MP
OnePlus 15
- 6.8" AMOLED
- Resolution: 1272x2772
- Refresh rate: 120 Hz
Samsung Galaxy S20
- 6.2" AMOLED
- Refresh rate: 120 Hz
OnePlus 15
- 6500 mAh
- Wired: 120W
- Wireless: 50W
Samsung Galaxy S20
- 4000 mAh
- Wireless charging: no data
We compared OnePlus 15 and Samsung Galaxy S20, covering their specs and all relevant benchmarks.
OnePlus 15 leads Samsung Galaxy S20 by 310.6% in our overall performance rating.
Launch price difference: $200. OnePlus 15 was $200 cheaper at launch.
performance
In the "performance" category, the OnePlus 15 significantly outperforms the Samsung Galaxy S20 (97/100 vs 57/100).
display
In the "display" category, the Samsung Galaxy S20 and the OnePlus 15 are nearly equal (85/100 vs 84/100).
camera
In the "camera" category, the OnePlus 15 significantly outperforms the Samsung Galaxy S20 (78/100 vs 11/100).
battery
In the "battery" category, the OnePlus 15 significantly outperforms the Samsung Galaxy S20 (89/100 vs 32/100).
portability
In the "portability" category, the Samsung Galaxy S20 significantly outperforms the OnePlus 15 (96/100 vs 50/100).
Which is better: the OnePlus 15 or the Samsung Galaxy S20?
The OnePlus 15 significantly outperforms the Samsung Galaxy S20 by 39 points (86/100 vs 47/100).
What is the rating of the OnePlus 15 and the Samsung Galaxy S20?
The OnePlus 15 has a MobileRank rating of 86/100, the Samsung Galaxy S20 — 47/100.
Which has the better camera: the OnePlus 15 or the Samsung Galaxy S20?
The OnePlus 15 leads on camera score (78/100 vs 11/100).
Which is more powerful: the OnePlus 15 or the Samsung Galaxy S20?
The OnePlus 15 leads on performance (97/100 vs 57/100).
Should you choose the OnePlus 15 over the Samsung Galaxy S20?
The OnePlus 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Samsung Galaxy S20 is a better fit for everyday use.