Samsung Galaxy S21 Plus vs OnePlus 15T
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Compared 2 smartphones : Samsung Galaxy S21 Plus Manufactured in February, 2021, with display 6.7 with chipsetSamsung Exynos 2100, vs OnePlus 15T, Manufactured in March, 2026 with chipsetQualcomm Snapdragon 8 Elite Gen 5. Below are specs, tests, pros and cons for each device
Key Differences
Reasons to choose Samsung Galaxy S21 Plus
- Larger display: 6.7in
- Supports newer USB: 3.2 vs 2
- Supports Dolby Atmos
Reasons to choose OnePlus 15T
- Higher pixel density: 460ppi
- Higher refresh rate: 165Hz
- Lighter design: 194g vs 200g
- Higher battery capacity: 7500mAh vs 4800mAh
- Newer Bluetooth version: 6.0 vs 5
- Supports DisplayPort
- Infrared port
- Includes charger
Versions
| Memory Options | - 8/128 GB - 8/256 GB |
- 12/256 GB - 12/512 GB - 16/256 GB - 16/512 GB - 16/1024 GB |
Review
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
Adjust each parameter’s importance to find the best match for you.
Tests & specs
Specs & test comparisonDisplay
| Type | Dynamic AMOLED | AMOLED |
| Size | 6.7 in | 6.32 in |
| Resolution | 1080x2400 pixels | 1216x2640 pixels |
| Aspect ratio | 20:9 | 19.5:9 |
| Pixel density | 394 ppi | 460 ppi |
| Refresh rate | 120 Hz | 165 Hz |
| Adaptive refresh rate | Yes (48-120 Hz) | Yes (60-165 Hz) |
| Max brightness | 1300 nits | 1800 nits |
| HDR support | Yes HDR10+ | Yes, Dolby Vision |
| Touch Sampling Rate | n/a | 330 Hz |
| Screen-to-body ratio | 88.7 % | 90.7 % |
| Features | - DCI-P3 - Always-On Display |
- DCI-P3 - Always-On Display - DC dimming |
| sRGB gamut | 98.9 % | 99.9 % |
| PWM (Flicker) | 240 Hz | 120 Hz |
| Response time | 6.2 ms | 6 ms |
| Contrast | ∞ Infinite | ∞ Infinite |
Design & Build
| Height | 161.5 mm (6.36 in) | 150.56 mm (5.93 in) |
| Width | 75.6 mm (2.98 in) | 71.82 mm (2.83 in) |
| Thickness | 7.8 mm (0.31 in) | 8.35 mm (0.33 in) |
| Weight | 200 g (7.05 oz) | 194 g (6.84 oz) |
| Water resistance | IP68 | IP69 |
| Cooling system | n/a | Vapor chamber |
| Back panel | Glass | Plastic |
| Frame | Metal | Metal |
| Colors | - Black - Silver - Gold - Red - Purple |
- White - Green - Brown |
| Fingerprint sensor | Yes In-Display | Yes, In-Display |
Screen-to-body ratio
Performance
| Chipset | Samsung Exynos 2100 | Qualcomm Snapdragon 8 Elite Gen 5 |
| Max Frequency | 2840 MHz | 4608 MHz |
| CPU Cores | 8 (1 + 3 + 4) | 8 (2 + 6) |
| Architecture | - 4/2.2 (Cortex-A55) - 3/2.81 (Cortex-A78) - 1/2.91 (Cortex-X1) |
- 6/3.63 (Oryon Gen 3 Performance) - 2/4.61 (Oryon Gen 3 Prime) |
| Process | Samsung | TSMC |
| Transistor Size | 5 nm | 3 nm |
| Neural Processor | Yes | Hexagon |
| Graphics | Mali-G78 MP14 | n/a |
| GPU Cores | 896 | n/a |
| GPU Frequency | 854 MHz | n/a |
| FLOPS | 1530.4 GFLOPS | n/a |
| Geekbench 6 (Single-Core) | 1428 | 3640 |
| Geekbench 6 (Multi-Core) | 3840 | 11033 |
| CPU | 262973 | 1052960 |
| GPU | 294382 | 1369637 |
| Memory | 147307 | 479431 |
| UX | 214686 | 774927 |
| NanoReview Score | 919348 | 3676955 |
| Max Surface Temp. | 41.5 °C | n/a |
| Stability | 67 % | n/a |
| Graphics Test | 33 fps | n/a |
| Graphics Score | 5538 | n/a |
Memory
| RAM Size | 8 GB | 12 GB |
| Memory Type | LPDDR5 | LPDDR5X |
| Memory Frequency | 2750 MHz | 5300 MHz |
| Channels | 2 | 4 |
| Storage Capacity | - 128 GB - 256 GB | 256 GB |
| Storage Type | UFS 3.1 | UFS 4.1 |
| Memory Card | No | No |
Software
| OS | Android 11 (Upgradeable to Android 14) | Android 16 |
| OS Size | 27.2 GB | 57 GB |
| UI Skin | One UI 6 | ColorOS 16 |
Battery
| Volume | 4800 mAh | 7500 mAh |
| Max Charging Power | 25 W | 100 W |
| Battery Type | Li-ion | Silicon Carbon (Si/C) |
| Removable | No | No |
| Wireless Charging | Yes (15 W) | Yes (50 W) |
| Reverse Charging | Yes (Wireless) | Yes |
| Fast Charging | Yes (54% in 30 min) | Yes (61% in 30 min) |
| Full Charge Time | 1:12 h | 0:46 h |
| Web Browsing | 07:28 h | n/a |
| Video Playback | 13:15 h | n/a |
| Games | 05:04 h | n/a |
| Standby Mode | 105 h | n/a |
Main camera
| Matrix | 12 MP | 50 MP |
| Photo resolution | 4000x3000 pixels | 8192x6144 pixels |
| Zoom | Optical, 1.1x | Optical, 3.5x |
| Flash | Dual LED | Dual LED |
| Stabilization | Optical | Optical |
| 8K Recording | Up to 24FPS | Yes (Up to 30 fps) |
| 4K Recording | Yes (Up to 60 fps) | Yes (Up to 120 fps) |
| 1080p Recording | Yes (Up to 60 fps) | Yes (Up to 120 fps) |
| Slow Motion | 960 fps (720p) | 480 fps (720p) |
| Wide-angle lens | 120 ° | n/a |
| Lenses count | Standard: 12 MP Telephoto: 64 MP Ultra-wide: 12 MP |
Standard: 50 MP Telephoto: 50 MP |
| Features | - Bokeh effect - Pro mode - RAW support |
- Bokeh effect - Pro mode - RAW support |
| Matrix | 12 MP | 50 MP |
| Aperture | f/1.8 | f/1.8 |
| Focal length | 26 mm | 24 mm |
| Sensor | Sony IMX555 | Sony IMX906 |
| Sensor size | 1/1.76 | 1/1.56 (0.64) |
| Pixel size | 1.8 μm | 1 μm |
| Autofocus | Phase autofocus (Dual Pixel) | Phase autofocus |
| Stabilization | Optical | Optical |
| Matrix | 64 MP | 50 MP |
| Aperture | f/2.0 | f/2.8 |
| Focal length | 28 mm | 85 mm |
| Sensor | Samsung Bright S5KGW2 | Samsung S5KJN5 |
| Sensor size | 1/1.72 | 1/2.76 (0.36) |
| Pixel size | 0.8 μm | 0.64 μm |
| Stabilization | Optical | Optical |
| Matrix | 12 MP | n/a |
| Aperture | f/2.2 | n/a |
| Focal length | 13 mm | n/a |
| Sensor | Sony IMX563 | n/a |
| Sensor size | 1/2.55 | n/a |
| Pixel size | 1.4 μm | n/a |
| Stabilization | Digital | n/a |
| Bokeh | 70 | n/a |
| Preview | 72 | n/a |
| Zoom | 126 | n/a |
Front camera
| Matrix | 10 MP | 16 MP |
| Photo resolution | 3872x2592 pixels | n/a |
| Aperture | f/2.2 | f/2.4 |
| Focal length | 26 mm | 23 mm |
| Sensor | Sony IMX374 | CMOS |
| Sensor size | 1/3.24 | n/a |
| Pixel size | 1.22 μm | 1 μm |
| Autofocus | Phase autofocus (Dual Pixel) | No |
| Stabilization | Digital | Digital |
| Video resolution | 2160p (4K) at 60 fps | 1080p (Full HD) at 30 fps |
| TOF 3D sensor | No | No |
Connectivity
| Wi-Fi version | Wi-Fi 6 (802.11 a/b/g/n/ac/ax) | Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) |
| Wi-Fi features | - Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
- Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
| Bluetooth version | 5 | 6.0 |
| Bluetooth features | LE, A2DP | LE |
| USB type | USB Type-C | USB Type-C |
| USB version | 3.2 | 2 |
| USB features | - Charging - USB Storage Mode - USB-Host mode - OTG |
- Charging - USB Storage Mode - OTG |
| DisplayPort | n/a | Yes |
| GPS | - GPS - GLONASS - Beidou - Galileo |
- GPS - GLONASS - Beidou - Galileo - QZSS |
| NFC* | Yes | Yes |
| Infrared Port | No | Yes |
| SIM Count* | 2 | 2 |
| SIM Type | Nano | Nano |
| SIM Mode | Dual SIM Standby | Dual SIM Standby |
| eSIM Support * | Yes | Yes |
| Hybrid Slot | No | No |
| 2G Bands | GSM 850, 900, 1800, 1900 MHz | GSM 850/900/1800MHz |
| 3G Bands | WCDMA Band 1, 2, 4, 5, 8 | WCDMA 1/2/4/5/8 |
| LTE Bands* | LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B32/B38/B39/B40/B41/B66) | LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B26/B28/B34/B38/B39/B40/B41/B42/B43/B48/B66) |
| LTE category | 24 | n/a |
| 5G Support | Yes | Yes |
Sound
| Speakers | Stereo | n/a |
| 3.5 mm Jack | No | No |
| FM Radio | No | No |
| Dolby Atmos | Yes | No |
Other
| Class | Flagship | Flagship |
| Announced | January, 2021 yr | March, 2026 yr |
| Release Date | February, 2021 yr | March, 2026 yr |
| Launch Price ($) | 1000 | n/a |
| MSRP ($) | n/a | 799 |
| Sensors | - Hall Sensor - Barometer - Proximity Sensor - Gyroscope - Accelerometer - Ambient Light Sensor - Compass - Fingerprint sensor |
- Proximity Sensor - Gyroscope - Accelerometer - Ambient Light Sensor - Compass - Fingerprint sensor |
| Charger Included | n/a | Yes, 100 W |
*
Attention!
Config, frequencies, NFC, and other specs may vary by region.
Results
After analyzing the data, we consider OnePlus 15T the clear winner in this comparison.
Survey
Total Votes: 0
