Samsung Galaxy S21 vs Samsung Galaxy S20
65
out 100
VS
62
out 100
Compared 2 smartphones : Samsung Galaxy S21 Manufactured in February, 2021, with display 6.2 with chipsetSamsung Exynos 2100, vs Samsung Galaxy S20, Manufactured in March, 2020with chipsetSamsung Exynos 9 Octa 990. Below are specs, tests, pros and cons for each device
Key Differences
Reasons to choose Samsung Galaxy S21
- Supports newer USB: 3.2 vs 3.1
Reasons to choose Samsung Galaxy S20
- Higher pixel density: 563ppi
- Lighter design: 163g vs 169g
Versions
| Memory Options | - 8/128 GB - 8/256 GB |
8/128 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 | Dynamic AMOLED |
| Size | 6.2 in | 6.2 in |
| Resolution | 1080x2400 pixels | 1440x3200 pixels |
| Aspect ratio | 20:9 | 20:9 |
| Pixel density | 421 ppi | 563 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | Yes (48-120 Hz) | No |
| Max brightness | 800 nits | 800 nits |
| HDR support | Yes HDR10+ | Yes HDR10+ |
| Screen-to-body ratio | 85.9 % | 88.5 % |
| Features | - DCI-P3 - Always-On Display |
- DCI-P3 - Always-On Display |
| sRGB gamut | 99.5 % | 99.8 % |
| PWM (Flicker) | 240 Hz | 242 Hz |
| Response time | 5 ms | 8.5 ms |
| Contrast | ∞ Infinite | ∞ Infinite |
Design & Build
| Height | 151.7 mm (5.97 in) | 151.7 mm (5.97 in) |
| Width | 71.2 mm (2.8 in) | 69.1 mm (2.72 in) |
| Thickness | 7.9 mm (0.31 in) | 7.9 mm (0.31 in) |
| Weight | 169 g (5.96 oz) | 163 g (5.75 oz) |
| Water resistance | IP68 | IP68 |
| Back panel | Plastic | Glass |
| Frame | Metal | Metal |
| Colors | - White - Gray - Pink - Purple |
- Gray - Blue - Red |
| Fingerprint sensor | Yes In-Display | Yes In-Display |
Screen-to-body ratio
Performance
| Chipset | Samsung Exynos 2100 | Samsung Exynos 9 Octa 990 |
| Max Frequency | 2900 MHz | 3020 MHz |
| CPU Cores | 8 (1 + 3 + 4) | 8 (2 + 2 + 4) |
| Architecture | - 4/2.2 (Cortex-A55) - 3/2.81 (Cortex-A78) - 1/2.91 (Cortex-X1) |
- 4/2 (Cortex-A55) - 2/2.5 (Cortex-A76) - 2/2.73 (Exynos M5) |
| Process | Samsung | Samsung |
| Transistor Size | 5 nm | 7 nm |
| Neural Processor | Yes | Yes |
| Graphics | Mali-G78 MP14 | Mali-G77 MP11 |
| GPU Cores | 896 | 704 |
| GPU Frequency | 854 MHz | 550 MHz |
| FLOPS | 1530.4 GFLOPS | 1126 GFLOPS |
| Geekbench 6 (Single-Core) | 1331 | 1139 |
| Geekbench 6 (Multi-Core) | 3593 | 3080 |
| CPU | 253391 | 206940 |
| GPU | 281676 | 180770 |
| Memory | 158352 | 136999 |
| UX | 210361 | 155352 |
| NanoReview Score | 903780 | 680061 |
| Max Surface Temp. | 38.9 °C | 49.7 °C |
| Stability | 66 % | 51 % |
| Graphics Test | 34 fps | 25 fps |
| Graphics Score | 5715 | 4221 |
| Writing score | 16101 | 13300 |
| Web score | 11909 | 9221 |
| Video editing | 7097 | 6001 |
| Data manipulation | 10153 | 8487 |
| NanoReview Score | 13123 | 11213 |
Memory
| RAM Size | 8 GB | 8 GB |
| Memory Type | LPDDR5 | LPDDR5 |
| Memory Frequency | 2750 MHz | 3200 MHz |
| Channels | 2 | 2 |
| Storage Capacity | - 128 GB - 256 GB | 128 GB |
| Storage Type | UFS 3.1 | UFS 3.0 |
| Memory Card | No | MicroSD |
Software
| OS | Android 11 (Upgradeable to Android 14) | Android 10.0 (Upgradeable to Android 13) |
| OS Size | 28.1 GB | 20.1 GB |
| UI Skin | One UI 6.0 | One UI 5.1 |
Battery
| Volume | 4000 mAh | 4000 mAh |
| Max Charging Power | 25 W | 25 W |
| Battery Type | Li-ion | Li-ion |
| Removable | No | No |
| Wireless Charging | Yes (15 W) | Yes (15 W) |
| Reverse Charging | Yes (Wireless) | Yes (Wireless) |
| Fast Charging | Yes (55% in 50 min) | Yes (100% in 75 min) |
| Full Charge Time | 1:35 h | 1:15 h |
| Web Browsing | 06:01 h | 06:49 h |
| Video Playback | 11:06 h | 10:33 h |
| Games | 04:21 h | 04:30 h |
| Standby Mode | 95 h | 69 h |
Main camera
| Matrix | 12 MP | 12 MP |
| Photo resolution | 4000x3000 pixels | 4000x3000 pixels |
| Zoom | Optical, 1.1x | Optical, 1.1x |
| Flash | Dual LED | LED |
| Stabilization | Optical | Optical |
| 8K Recording | Up to 24FPS | Up to 24FPS |
| 4K Recording | Yes (Up to 60 fps) | Yes (Up to 60 fps) |
| 1080p Recording | Yes (Up to 60 fps) | Yes (Up to 60 fps) |
| Slow Motion | 960 fps (720p) | 960 fps (720p) |
| Wide-angle lens | 120 ° | 120 ° |
| Lenses count | Standard: 12 MP Telephoto: 64 MP Ultra-wide: 12 MP |
Standard: 12 MP Telephoto: 64 MP Ultra-wide: 12 MP |
| Features | - Bokeh effect - Pro mode - RAW support |
- Bokeh effect - Pro mode - RAW support |
| Matrix | 12 MP | 12 MP |
| Aperture | f/1.8 | f/1.8 |
| Focal length | 26 mm | 26 mm |
| Sensor | Sony IMX555 | Samsung S5K2LD |
| Sensor size | 1/1.76 | 1/1.76 |
| Pixel size | 1.8 μm | 1.8 μm |
| Autofocus | Phase autofocus (Dual Pixel) | Phase autofocus (Dual Pixel) |
| Stabilization | Optical | Optical |
| Matrix | 64 MP | 64 MP |
| Aperture | f/2.0 | f/2.0 |
| Focal length | 28 mm | 29 mm |
| Sensor | Samsung Bright S5KGW2 | Samsung Bright S5KGW2 |
| Sensor size | 1/1.72 | 1/1.72 |
| Pixel size | 0.8 μm | 0.8 μm |
| Stabilization | Optical | Optical |
| Matrix | 12 MP | 12 MP |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 13 mm | 13 mm |
| Sensor | Sony IMX563 | Samsung S5K2LA |
| Sensor size | 1/2.55 | 1/2.55 |
| Pixel size | 1.4 μm | 1.4 μm |
| Stabilization | Digital | Digital |
| Bokeh | 70 | n/a |
| Preview | 72 | n/a |
| Zoom | 126 | n/a |
Front camera
| Matrix | 10 MP | 10 MP |
| Photo resolution | 3872x2592 pixels | 2592x3872 pixels |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 26 mm | 26 mm |
| Sensor | Sony IMX374 | Samsung S5K3J1 |
| Sensor size | 1/3.24 | 1/3.2 |
| Pixel size | 1.22 μm | 1.22 μm |
| Autofocus | Phase autofocus (Dual Pixel) | Phase autofocus (Dual Pixel) |
| Stabilization | Digital | Digital |
| Video resolution | 2160p (4K) at 60 fps | 2160p (4K) at 60 fps |
| TOF 3D sensor | No | No |
Connectivity
| Wi-Fi version | Wi-Fi 6 (802.11 a/b/g/n/ac/ax) | Wi-Fi 6 (802.11 b/g/n/ac/ax) |
| Wi-Fi features | - Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
- Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
| Bluetooth version | 5 | 5 |
| Bluetooth features | LE, A2DP | LE, A2DP |
| USB type | USB Type-C | USB Type-C |
| USB version | 3.2 | 3.1 |
| USB features | - Charging - USB Storage Mode - USB-Host mode - OTG |
- Charging - USB Storage Mode - OTG |
| GPS | - GPS - GLONASS - Beidou - Galileo |
- GPS - GLONASS - Beidou - Galileo |
| NFC* | Yes | Yes |
| Infrared Port | No | No |
| SIM Count* | 2 | 2 |
| SIM Type | Nano | Nano |
| SIM Mode | Dual SIM Standby | Dual SIM Standby |
| eSIM Support * | Yes | Yes |
| Hybrid Slot | No | Yes |
| 2G Bands | GSM 850, 900, 1800, 1900 MHz | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Bands | WCDMA Band 1, 2, 4, 5, 8 | HSDPA 850 / 900 / 1900 / 2100 |
| 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 (B850/B900/B1700/B1900/B2100) |
| LTE category | 24 | 22 |
| 5G Support | Yes | No |
Sound
| Speakers | Stereo | Stereo |
| 3.5 mm Jack | No | No |
| FM Radio | No | No |
| Dolby Atmos | Yes | Yes |
Other
| Class | Flagship | Flagship |
| Announced | January, 2021 yr | February, 2020 yr |
| Release Date | February, 2021 yr | March, 2020 yr |
| Launch Price ($) | 800 | 999 |
| Sensors | - Hall Sensor - Barometer - Proximity Sensor - Gyroscope - Accelerometer - Ambient Light Sensor - Compass - Fingerprint sensor |
- Barometer - Proximity Sensor - Gyroscope - Accelerometer - Compass - Fingerprint sensor |
*
Attention!
Config, frequencies, NFC, and other specs may vary by region.
Results
No clear favorite identified yet; updates may follow as new data arrives.
Survey
Total Votes: 1
