OnePlus 15 vs Samsung Galaxy S21
92.9Performance34.4
68Display49.1
66.5Camera40.8
94.7Battery36.9
78.7Features78.7
18 spec wins — OnePlus 153 spec wins — Samsung Galaxy S21
InnoReviews verdict
OnePlus 15 wins this phone face-off, 81.6 to 43.6, pulling ahead mainly in performance (+59) and battery (+58). Samsung Galaxy S21 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the OnePlus 15
- Stronger performance score: 93 vs 34
- Stronger display score: 68 vs 49
- Stronger camera score: 67 vs 41
- Stronger battery score: 95 vs 37
- 951% higher AnTuTu 10 (GPU): 1,342,827 vs 127,819
Reasons to pick the Samsung Galaxy S21
- 28% higher telephoto: 64 MP vs 50 MP
- 19% lower weight: 171 g vs 211 g
- Lower launch price: $799 vs $899
Display
| Spec | OnePlus 15 | Samsung Galaxy S21 |
|---|---|---|
| Screen size | 6.78 ″+9% | 6.2 ″ |
| Panel type | LTPO AMOLED | AMOLED |
| Resolution | 2772x1272 | 2400x1080 |
| Pixel density | 450 ppi+7% | 421 ppi |
| Refresh rate | 165 Hz+38% | 120 Hz |
| Peak brightness | 1,800 nits+38% | 1,300 nits |
| AnTuTu 10 (CPU) | 1,084,061+330%Top 4% | 252,025Top 94% |
| AnTuTu 10 (GPU) | 1,342,827+951%Top 7% | 127,819Top 79% |
| AnTuTu 10 (Memory) | 425,901+194%Top 4% | 144,909Top 91% |
| AnTuTu 10 (UX) | 793,372+258%Top 4% | 221,794Top 88% |
Performance
| Spec | OnePlus 15 | Samsung Galaxy S21 |
|---|---|---|
| Chipset | Snapdragon 8 Elite Gen 5 | Samsung Exynos 2100 |
| AnTuTu 10 | 3,646,161+388%Top 1% | 746,547Top 66% |
| Geekbench 6 (single) | 3,850+169%Top 1% | 1,430Top 52% |
| Geekbench 6 (multi) | 11,900+235%Top 1% | 3,550Top 56% |
| RAM (max) | 16 GB+100% | 8 GB |
| Storage options | 256GB / 512GB / 1TB | 128GB / 256GB |
| Storage type | UFS 4.1 | UFS 3.1 |
Camera
| Spec | OnePlus 15 | Samsung Galaxy S21 |
|---|---|---|
| Main camera | 50 MP+317% | 12 MP |
| Main aperture | f/1.8 | f/1.8 |
| Ultra-wide | 50 MP+317% | 12 MP |
| Telephoto | 50 MP | 64 MP+28% |
| Optical zoom | 3.5 x | — |
| Max video | 8K@30fps | 8K@24fps |
| Front camera | 32 MP+220% | 10 MP |
| OIS | Yes | Yes |
Battery
| Spec | OnePlus 15 | Samsung Galaxy S21 |
|---|---|---|
| Capacity | 7,300 mAh+83% | 4,000 mAh |
| Wired charging | 120 W+380% | 25 W |
| Wireless charging | 50 W+233% | 15 W |
Design
| Spec | OnePlus 15 | Samsung Galaxy S21 |
|---|---|---|
| Weight | 211 g | 171 g+19% |
| Thickness | 8.2 mm | 7.9 mm+4% |
| IP rating | IP69 | IP68 |
| Frame material | Aluminum | Aluminum |
Connectivity
| Spec | OnePlus 15 | Samsung Galaxy S21 |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 6 |
| Bluetooth | 6.0 | 5.0 |
| NFC | Yes | Yes |
| USB | USB-C 3.2 | USB-C 3.2 |
| eSIM | Yes | Yes |
Software
| Spec | OnePlus 15 | Samsung Galaxy S21 |
|---|---|---|
| OS at launch | Android 16 (OxygenOS 16) | Android 11 (One UI 3.1) |
| OS update pledge | 4 years | 4 years |
Audio
| Spec | OnePlus 15 | Samsung Galaxy S21 |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |