Samsung Galaxy S21 FE 5G vs Xiaomi Redmi Note 15 4G
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out 100
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Compared 2 smartphones : Samsung Galaxy S21 FE 5G Manufactured in January, 2022, with display 6.4 with chipsetQualcomm Snapdragon 888, vs Xiaomi Redmi Note 15 4G, Manufactured in December, 2025with chipsetMediaTek Helio G100 Ultra. Below are specs, tests, pros and cons for each device
Key Differences
Reasons to choose Samsung Galaxy S21 FE 5G
- Higher pixel density: 403ppi
- Lighter design: 177g vs 183.7g
- Supports newer USB: 3.2 vs 2
- Supports Dolby Atmos
Reasons to choose Xiaomi Redmi Note 15 4G
- Larger display: 6.77in
- Higher battery capacity: 6000mAh vs 4500mAh
- Newer Bluetooth version: 5.3 vs 5
Versions
| Memory Options | - 6/128 GB - 6/256 GB - 8/128 GB - 8/256 GB |
- 6/128 GB - 8/128 GB - 8/256 GB - 8/512 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 | 6.4 in | 6.77 in |
| Resolution | 1080x2340 pixels | 1080x2340 pixels |
| Aspect ratio | 19.5:9 | n/a |
| Pixel density | 403 ppi | 388 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | No | Yes (60-120 Hz) |
| Max brightness | 800 nits | n/a |
| HDR support | Yes HDR10+ | No |
| Screen-to-body ratio | 86.7 % | 89.7 % |
| Features | - DCI-P3 - Always-On Display |
DCI-P3 |
| sRGB gamut | 97 % | n/a |
| PWM (Flicker) | 247 Hz | n/a |
| Response time | 6 ms | n/a |
| Contrast | ∞ Infinite | n/a |
Design & Build
| Height | 155.7 mm (6.13 in) | 164 mm (6.46 in) |
| Width | 74.5 mm (2.93 in) | 75.4 mm (2.97 in) |
| Thickness | 7.9 mm (0.31 in) | 7.4 mm (0.29 in) |
| Weight | 177 g (6.24 oz) | 183.7 g (6.48 oz) |
| Water resistance | IP68 | IP64 |
| Back panel | Plastic | Plastic |
| Frame | Metal | Plastic |
| Colors | - White - Gray - Green - Purple |
- Black - Blue - Green - Purple |
| Fingerprint sensor | Yes In-Display | Yes, In-Display |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 888 | MediaTek Helio G100 Ultra |
| Max Frequency | 2840 MHz | 2200 MHz |
| CPU Cores | 8 (1 + 3 + 4) | 8 (2 + 6) |
| Architecture | - 4/1.8 (Kryo 680 Silver (Cortex-A55)) - 3/2.42 (Kryo 680 Gold (Cortex-A78)) - 1/2.84 (Kryo 680 Prime (Cortex-X1)) |
- 6/2 (Cortex-A55) - 2/2.2 (Cortex-A76) |
| Process | Samsung | TSMC |
| Transistor Size | 5 nm | 6 nm |
| Neural Processor | Hexagon 780 | Yes |
| Graphics | Adreno 660 | Mali-G57 MP2 |
| GPU Cores | 1024 | 64 |
| GPU Frequency | 840 MHz | 1000 MHz |
| FLOPS | 1290.2 GFLOPS | 128 GFLOPS |
| Geekbench 6 (Single-Core) | 1371 | 730 |
| Geekbench 6 (Multi-Core) | 3396 | 2025 |
| CPU | 247848 | 132724 |
| GPU | 311997 | 72238 |
| Memory | 152639 | 109980 |
| UX | 182414 | 122242 |
| NanoReview Score | 894898 | 437184 |
| Max Surface Temp. | 39.1 °C | n/a |
| Stability | 69 % | n/a |
| Graphics Test | 34 fps | n/a |
| Graphics Score | 5704 | n/a |
| Writing score | 14216 | n/a |
| Web score | 11960 | n/a |
| Video editing | 7049 | n/a |
| Data manipulation | 10196 | n/a |
| NanoReview Score | 12441 | n/a |
Memory
| RAM Size | - 6 GB - 8 GB |
6 GB |
| Memory Type | LPDDR5 | LPDDR4X |
| Memory Frequency | 3200 MHz | 2133 MHz |
| Channels | 4 | 2 |
| Storage Capacity | - 128 GB - 256 GB | 128 GB |
| Storage Type | UFS 3.1 | UFS 2.2 |
| Memory Card | No | No |
Software
| OS | Android 12 (Upgradeable to Android 14) | Android 15 |
| OS Size | 17.5 GB | n/a |
| UI Skin | One UI 6 | HyperOS 2.0 |
Battery
| Volume | 4500 mAh | 6000 mAh |
| Max Charging Power | 25 W | 33 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 (51% in 30 min) | Yes |
| Full Charge Time | 1:15 h | n/a |
| Web Browsing | 06:11 h | n/a |
| Video Playback | 11:05 h | n/a |
| Games | 04:48 h | n/a |
| Standby Mode | 100 h | n/a |
Main camera
| Matrix | 12 MP | 108 MP |
| Photo resolution | 4032x3024 pixels | n/a |
| Zoom | Optical, 3x | Digital |
| Flash | LED | LED |
| Stabilization | Optical | Digital |
| 8K Recording | No | No |
| 4K Recording | Yes (Up to 60 fps) | No |
| 1080p Recording | Yes (Up to 60 fps) | Yes (Up to 30 fps) |
| Slow Motion | 960 fps (720p) | n/a |
| Wide-angle lens | 123 ° | n/a |
| Lenses count | Standard: 12 MP Telephoto: 8 MP Ultra-wide: 12 MP |
Standard: 108 MP Depth: 2 MP |
| Features | - Bokeh effect - Pro mode |
- Bokeh effect - Pro mode |
| Matrix | 12 MP | 108 MP |
| Aperture | f/1.8 | f/1.7 |
| Focal length | 26 mm | 24 mm |
| Sensor | Sony IMX555 | n/a |
| Sensor size | 1/1.76 | 1/1.67 (0.6) |
| Pixel size | 1.8 μm | 0.64 μm |
| Autofocus | Phase autofocus (Dual Pixel) | Phase autofocus |
| Stabilization | Optical | Digital |
| Matrix | 8 MP | n/a |
| Aperture | f/2.4 | n/a |
| Focal length | 76 mm | n/a |
| Sensor | Hynix Hi847 | n/a |
| Sensor size | 1/4.5 | n/a |
| Pixel size | 1 μm | n/a |
| Stabilization | Optical | n/a |
| Matrix | 12 MP | n/a |
| Aperture | f/2.2 | n/a |
| Focal length | 13 mm | n/a |
| Sensor | Sony IMX258 | n/a |
| Sensor size | 1/3.0 | n/a |
| Pixel size | 1.12 μm | n/a |
| Stabilization | Digital | n/a |
Front camera
| Matrix | 32 MP | 20 MP |
| Photo resolution | 6464x4864 pixels | n/a |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 26 mm | n/a |
| Sensor | Sony IMX616 | Omnivision OV02F |
| Sensor size | 1/2.74 | 1/5 (0.2) |
| Pixel size | 0.8 μm | 1.75 μm |
| Autofocus | No | 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 5 (802.11 a/b/g/n/ac) |
| Wi-Fi features | - Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
- Dual Band - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
| Bluetooth version | 5 | 5.3 |
| Bluetooth features | LE | LE |
| USB type | USB Type-C | USB Type-C |
| USB version | 3.2 | 2 |
| USB features | - Charging - USB Storage Mode - OTG |
- Charging - USB Storage Mode - OTG |
| DisplayPort | n/a | No |
| GPS | - GPS - GLONASS - Beidou - Galileo |
- GPS - GLONASS - Beidou - Galileo - QZSS |
| NFC* | Yes | Varies by region |
| Infrared Port | No | No |
| SIM Count* | 2 | 2 |
| SIM Type | Nano | Nano |
| SIM Mode | Dual SIM Standby | Dual SIM Standby |
| eSIM Support * | No | No |
| Hybrid Slot | No | No |
| 2G Bands | GSM GSM850, GSM900, DCS1800, PCS1900 | n/a |
| 3G Bands | UMTS B1 (2100), B2 (1900), B4(AWS), B5(850), B8 (900) | n/a |
| 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) | n/a |
| LTE category | 19 | n/a |
| 5G Support | Yes | No |
Sound
| Speakers | Stereo | n/a |
| 3.5 mm Jack | No | No |
| FM Radio | No | Yes |
| Dolby Atmos | Yes | n/a |
Other
| Class | Flagship | Mid-range |
| Announced | January, 2022 yr | December, 2025 yr |
| Release Date | January, 2022 yr | December, 2025 yr |
| Launch Price ($) | 790 | n/a |
| 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 | No | n/a |
*
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: 0
