Samsung Galaxy S21 Ultra vs Xiaomi Poco F7
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84
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Compared 2 smartphones : Samsung Galaxy S21 Ultra Manufactured in February, 2021, with display 6.8 with chipsetSamsung Exynos 2100, vs Xiaomi Poco F7, Manufactured in June, 2025 with chipsetQualcomm Snapdragon 8s Gen 4. Below are specs, tests, pros and cons for each device
Key Differences
Reasons to choose Samsung Galaxy S21 Ultra
- Higher pixel density: 515ppi
- Supports newer USB: 3.2 vs 2
- Built-in eSIM
Reasons to choose Xiaomi Poco F7
- Larger display: 6.83in
- Lighter design: 215.7g vs 227g
- Higher battery capacity: 6500mAh vs 5000mAh
- Newer Bluetooth version: 6.0 vs 5.2
- Infrared port
- Includes charger
Versions
| Memory Options | - 12/128 GB - 12/256 GB - 12/512 GB - 16/256 GB - 16/512 GB |
- 12/256 GB - 12/512 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 | 6.8 in | 6.83 in |
| Resolution | 1440x3200 pixels | 1280x2772 pixels |
| Aspect ratio | 20:9 | 19.5:9 |
| Pixel density | 515 ppi | 447 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | Yes (10-120 Hz) | Yes (1-120 Hz) |
| Max brightness | 1500 nits | 1700 nits |
| HDR support | Yes HDR10+ | Yes Dolby Vision |
| Touch Sampling Rate | n/a | 480 Hz |
| Screen-to-body ratio | 89.5 % | 90.1 % |
| Features | - DCI-P3 - Always-On Display |
- DCI-P3 - Always-On Display - DC dimming |
Design & Build
| Height | 165.1 mm (6.5 in) | 163.1 mm (6.42 in) |
| Width | 75.6 mm (2.98 in) | 77.9 mm (3.07 in) |
| Thickness | 8.9 mm (0.35 in) | 8.2 mm (0.32 in) |
| Weight | 227 g (8.01 oz) | 215.7 g (7.61 oz) |
| Water resistance | IP68 | IP68 |
| Cooling system | n/a | Vapor chamber |
| Back panel | Glass | Glass |
| Frame | Metal | Metal |
| Colors | - Black - Silver - Gray - Blue |
- White - Black - Silver |
| Fingerprint sensor | Yes In-Display | Yes In-Display |
Screen-to-body ratio
Performance
| Chipset | Samsung Exynos 2100 | Qualcomm Snapdragon 8s Gen 4 |
| Max Frequency | 2900 MHz | 3210 MHz |
| CPU Cores | 8 (1 + 3 + 4) | 8 (1 + 3 + 2 + 2) |
| Architecture | - 4/2.2 (Cortex-A55) - 3/2.81 (Cortex-A78) - 1/2.91 (Cortex-X1) |
- 2/2.02 (Cortex-A720) - 2/2.8 (Cortex-A720) - 3/3 (Cortex-A720) - 1/3.21 (Cortex-X4) |
| Process | Samsung | TSMC |
| Transistor Size | 5 nm | 4 nm |
| Neural Processor | Yes | Hexagon |
| Graphics | Mali-G78 MP14 | Adreno 825 |
| GPU Cores | 896 | 1024 |
| GPU Frequency | 854 MHz | 1150 MHz |
| FLOPS | 1530.4 GFLOPS | 2355.2 GFLOPS |
| Geekbench 6 (Single-Core) | 1449 | n/a |
| Geekbench 6 (Multi-Core) | 3892 | n/a |
| CPU | 232358 | n/a |
| GPU | 256356 | n/a |
| Memory | 163007 | n/a |
| UX | 191217 | n/a |
| NanoReview Score | 843008 | n/a |
| Max Surface Temp. | 40.8 °C | n/a |
| Stability | 69 % | n/a |
| Graphics Test | 31 fps | n/a |
| Graphics Score | 5221 | n/a |
Memory
| RAM Size | - 12 GB - 16 GB |
12 GB |
| Memory Type | LPDDR5 | LPDDR5X |
| Memory Frequency | 2750 MHz | 4800 MHz |
| Channels | 2 | 4 |
| Storage Capacity | - 128 GB - 256 GB - 512 GB | 256 GB |
| Storage Type | UFS 3.1 | UFS 4.1 |
| Memory Card | No | No |
Software
| OS | Android 11 (Upgradeable to Android 14) | Android 15 |
| OS Size | 26.4 GB | n/a |
| UI Skin | One UI 6 | HyperOS 2.0 |
Battery
| Volume | 5000 mAh | 6500 mAh |
| Max Charging Power | 25 W | 90 W |
| Battery Type | Li-ion | Silicon Carbon (Si/C) |
| Removable | No | No |
| Wireless Charging | Yes (15 W) | No |
| Reverse Charging | Yes (Wireless) | Yes |
| Fast Charging | Yes (54% in 30 min) | Yes (90% in 30 min) |
| Full Charge Time | 1:11 h | 0:39 h |
| Web Browsing | 07:58 h | 10:04 h |
| Video Playback | 13:59 h | 14:33 h |
| Games | 05:14 h | 07:02 h |
| Standby Mode | 111 h | 130 h |
Main camera
| Matrix | 108 MP | 50 MP |
| Photo resolution | 12000x9000 pixels | 8192x6144 pixels |
| Zoom | Optical, 10x | Digital |
| Flash | Dual LED | Dual LED |
| Stabilization | Optical | Optical |
| 8K Recording | Up to 24FPS | No |
| 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 (1080p) |
| Wide-angle lens | 120 ° | n/a |
| Lenses count | Standard: 108 MP Telephoto: 10 MP Telephoto: 10 MP Ultra-wide: 12 MP |
Standard: 50 MP Ultra-wide: 8 MP |
| Features | - Bokeh effect - Pro mode - RAW support |
- Bokeh effect - Pro mode |
| Matrix | 108 MP | 50 MP |
| Aperture | f/1.8 | f/1.5 |
| Focal length | 26 mm | 26 mm |
| Sensor | Samsung S5KHM3 | Sony IMX882 |
| Sensor size | 1/1.33 | 1/1.95 |
| Pixel size | 0.8 μm | 0.8 μm |
| Autofocus | Laser autofocus | Phase autofocus |
| Stabilization | Optical | Optical |
| Matrix | 10 MP | n/a |
| Aperture | f/4.9 | n/a |
| Focal length | 240 mm | n/a |
| Sensor | Samsung S5K3J1 | n/a |
| Sensor size | 1/2.65 | n/a |
| Pixel size | 1.22 μm | n/a |
| Stabilization | Optical | n/a |
| Matrix | 12 MP | 8 MP |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 13 mm | 15 mm |
| Sensor | Sony IMX563 | Omnivision OV08F |
| Sensor size | 1/2.55 | n/a |
| Pixel size | 1.4 μm | n/a |
| Stabilization | Digital | Digital |
| Bokeh | 70 | n/a |
| Preview | 67 | n/a |
| Zoom | 106 | n/a |
Front camera
| Matrix | 40 MP | 20 MP |
| Photo resolution | 7864x5200 pixels | n/a |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 26 mm | 25 mm |
| Sensor | Samsung S5KGH1 | Omnivision OV20B |
| Sensor size | 1/2.65 | 1/4.0 |
| Pixel size | 0.7 μm | 0.7 μm |
| Autofocus | Phase autofocus | No |
| Stabilization | Digital | Digital |
| Video resolution | 2160p (4K) at 60 fps | 1080p (Full HD) at 60 fps |
| TOF 3D sensor | No | No |
Connectivity
| Wi-Fi version | Wi-Fi 6E (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 | 5.2 | 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 | No |
| GPS | - GPS - GLONASS - Beidou - Galileo |
- GPS - GLONASS - Beidou - Galileo - QZSS - NAVIC |
| 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 | No |
| Hybrid Slot | No | No |
| 2G Bands | GSM 850, 900, 1800, 1900 MHz | GSM B3/B5/B8 |
| 3G Bands | WCDMA Band 1, 2, 4, 5, 8 | WCDMA B1/B4/B5/B6/B8/B19 |
| 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/B3/B4/B5/B8/B19/B28/B34/B38/B39/B40/B41/B42/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 | Yes |
Other
| Class | Flagship | Mid-range |
| Announced | January, 2021 yr | June, 2025 yr |
| Release Date | February, 2021 yr | June, 2025 yr |
| Launch Price ($) | 1200 | n/a |
| MSRP ($) | n/a | 399 |
| 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 90 W |
*
Attention!
Config, frequencies, NFC, and other specs may vary by region.
Results
After analyzing the data, we consider Xiaomi Poco F7 the clear winner in this comparison.
Survey
Total Votes: 1
