OnePlus 15T vs Samsung Galaxy S21+
The OnePlus 15T (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Samsung Galaxy S21+ (2021) runs on the Samsung Exynos 2100; launch prices were $799 and $999. By overall MobileRank rating, the OnePlus 15T leads — 86/100 vs 57/100 (a 29-point difference). Key differences: the OnePlus 15T has the bigger battery (6400 mAh vs 4800); the main camera is 50 MP vs 12 MP; the OnePlus 15T is faster in AnTuTu (3,676,955 vs 1,017,773).
OnePlus 15T
Samsung Galaxy S21+
- Higher AnTuTu: 3676955 vs 1017773
- Better Geekbench Single: 3640 vs 1435
- Better Geekbench Multi: 11033 vs 3555
- Bigger battery: 6400 vs 4800 mAh
- Faster charging: 100W vs 25W
- Better main camera: 50MP vs 12MP
- Faster wireless charging: 50W vs 15W
- Cheaper at launch: $799 vs $999
- Higher performance (97/100 vs 62/100)
- Better camera (78/100 vs 42/100)
- Longer battery life (84/100 vs 48/100)
- Better display (89/100 vs 79/100)
- Lighter: 200g vs 206g
- Better portability (60/100 vs 51/100)
Comparing the OnePlus 15T vs the Samsung Galaxy S21+, the OnePlus 15T scores 29 points higher (86/100 vs 57/100). In the "performance" category, the OnePlus 15T leads (97/100 vs 62/100). In the "camera" category, the OnePlus 15T leads (78/100 vs 42/100). In the "battery" category, the OnePlus 15T leads (84/100 vs 48/100). Value score: OnePlus 15T — 84/100, Samsung Galaxy S21+ — 26/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the OnePlus 15T significantly outperforms the Samsung Galaxy S21+ (97/100 vs 62/100). In the "display" category, the OnePlus 15T is a bit better (89/100 vs 79/100). In the "camera" category, the OnePlus 15T significantly outperforms the Samsung Galaxy S21+ (78/100 vs 42/100). In the "battery" category, the OnePlus 15T significantly outperforms the Samsung Galaxy S21+ (84/100 vs 48/100). In the "portability" category, the Samsung Galaxy S21+ is a bit better (60/100 vs 51/100).
| Specification | OnePlus 15T | Samsung Galaxy S21+ | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Samsung Exynos 2100 | |
| AnTuTu | 3676955 | 1017773 | |
| Geekbench Single | 3640 | 1435 | |
| Geekbench Multi | 11033 | 3555 | |
| Display | 6.8" LTPO AMOLED | 6.7" Dynamic AMOLED 2X | |
| Resolution | 3168x1440 | 2400x1080 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6400 mAh | 4800 mAh | |
| Charging | 100W | 25W | |
| Wireless charging | 50W | 15W | |
| Main camera | 50 MP | 12 MP | |
| Ultrawide | 50 MP | 12 MP | |
| Telephoto | 50 MP | 64 MP | |
| Front camera | 32 MP | 10 MP | |
| RAM | 12GB / 16GB | 8GB | |
| Storage | 256GB / 512GB | 128GB / 256GB | |
| OS | Android 16 | Android 11 | |
| Brightness (peak) | 3600 nits | — | |
| NFC | yes | — | |
| Protection | IP68 | — | |
| Dimensions | 150.6×71.8×8.4 mm | — | |
| Weight | 206 g | 200 g | |
| Launch price | $799 | $999 |
OnePlus 15T
- Main: 50MP f/1.6
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Samsung Galaxy S21+
- Main: 12MP f/1.8
- Ultrawide: 12MP
- Telephoto: 64MP
- Front: 10MP
OnePlus 15T
- 6.8" LTPO AMOLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Samsung Galaxy S21+
- 6.7" Dynamic AMOLED 2X
- Resolution: 2400x1080
- Refresh rate: 120 Hz
OnePlus 15T
- 6400 mAh
- Wired: 100W
- Wireless: 50W
Samsung Galaxy S21+
- 4800 mAh
- Wired: 25W
- Wireless: 15W
We compared OnePlus 15T and Samsung Galaxy S21+, covering their specs and all relevant benchmarks.
OnePlus 15T leads Samsung Galaxy S21+ by 261.3% in our overall performance rating.
Launch price difference: $200. OnePlus 15T was $200 cheaper at launch.
performance
In the "performance" category, the OnePlus 15T significantly outperforms the Samsung Galaxy S21+ (97/100 vs 62/100).
display
In the "display" category, the OnePlus 15T is a bit better (89/100 vs 79/100).
camera
In the "camera" category, the OnePlus 15T significantly outperforms the Samsung Galaxy S21+ (78/100 vs 42/100).
battery
In the "battery" category, the OnePlus 15T significantly outperforms the Samsung Galaxy S21+ (84/100 vs 48/100).
portability
In the "portability" category, the Samsung Galaxy S21+ is a bit better (60/100 vs 51/100).
Which is better: the OnePlus 15T or the Samsung Galaxy S21+?
The OnePlus 15T significantly outperforms the Samsung Galaxy S21+ by 29 points (86/100 vs 57/100).
What is the rating of the OnePlus 15T and the Samsung Galaxy S21+?
The OnePlus 15T has a MobileRank rating of 86/100, the Samsung Galaxy S21+ — 57/100.
Which has the better camera: the OnePlus 15T or the Samsung Galaxy S21+?
The OnePlus 15T leads on camera score (78/100 vs 42/100).
Which is more powerful: the OnePlus 15T or the Samsung Galaxy S21+?
The OnePlus 15T leads on performance (97/100 vs 62/100).
Should you choose the OnePlus 15T over the Samsung Galaxy S21+?
The OnePlus 15T is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Samsung Galaxy S21+ is a better fit for active users.