Samsung Galaxy S21 FE 5G vs Xiaomi Redmi Note 15 5G
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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 5G, Manufactured in August, 2025 with chipsetQualcomm Snapdragon 6 Gen 3. 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 178g
- Supports newer USB: 3.2 vs 2
- Supports Dolby Atmos
Reasons to choose Xiaomi Redmi Note 15 5G
- Larger display: 6.77in
- Higher battery capacity: 5800mAh vs 4500mAh
- Newer Bluetooth version: 5.1 vs 5
- Infrared port
- Includes charger
Versions
| Memory Options | - 6/128 GB - 6/256 GB - 8/128 GB - 8/256 GB |
- 6/128 GB - 8/128 GB - 8/256 GB - 12/256 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 % | 89.1 % |
| 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) | 165 mm (6.5 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) | 178 g (6.28 oz) |
| Water resistance | IP68 | IP68 |
| Back panel | Plastic | n/a |
| Frame | Metal | Plastic |
| Colors | - White - Gray - Green - Purple |
- White - Black - Blue |
| Fingerprint sensor | Yes In-Display | Yes, In-Display |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 888 | Qualcomm Snapdragon 6 Gen 3 |
| Max Frequency | 2840 MHz | 2400 MHz |
| CPU Cores | 8 (1 + 3 + 4) | 8 (4 + 4) |
| 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)) |
- 4/1.8 (Cortex-A55) - 4/2.4 (Cortex-A78) |
| Process | Samsung | Samsung |
| Transistor Size | 5 nm | 4 nm |
| Neural Processor | Hexagon 780 | Hexagon |
| Graphics | Adreno 660 | Adreno 710 |
| GPU Cores | 1024 | 256 |
| GPU Frequency | 840 MHz | 1010 MHz |
| FLOPS | 1290.2 GFLOPS | 517.1 GFLOPS |
| Geekbench 6 (Single-Core) | 1371 | 1015 |
| Geekbench 6 (Multi-Core) | 3396 | 2890 |
| CPU | 247848 | 200717 |
| GPU | 311997 | 141388 |
| Memory | 152639 | 118625 |
| UX | 182414 | 148255 |
| NanoReview Score | 894898 | 608985 |
| 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 | 5800 mAh |
| Max Charging Power | 25 W | 45 W |
| Battery Type | Li-ion | Li-Po |
| 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 | 50 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: 50 MP Depth: 2 MP |
| Features | - Bokeh effect - Pro mode |
- Bokeh effect - Pro mode |
| Matrix | 12 MP | 50 MP |
| Aperture | f/1.8 | f/1.8 |
| Focal length | 26 mm | n/a |
| Sensor | Sony IMX555 | n/a |
| Sensor size | 1/1.76 | 1/2 |
| 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 | 8 MP |
| Photo resolution | 6464x4864 pixels | n/a |
| Aperture | f/2.2 | f/2.0 |
| Focal length | 26 mm | n/a |
| Sensor | Sony IMX616 | n/a |
| Sensor size | 1/2.74 | n/a |
| Pixel size | 0.8 μm | n/a |
| Autofocus | No | 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 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 | 5.1 |
| 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 | Yes |
| Infrared Port | No | Yes |
| 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 | Yes |
Sound
| Speakers | Stereo | n/a |
| 3.5 mm Jack | No | Yes |
| FM Radio | No | Yes |
| Dolby Atmos | Yes | n/a |
Other
| Class | Flagship | Mid-range |
| Announced | January, 2022 yr | August, 2025 yr |
| Release Date | January, 2022 yr | August, 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 | Yes, 45 W |
*
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
