Samsung Galaxy S21 Plus vs Xiaomi Redmi Note 15 Pro 4G
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Compared 2 smartphones : Samsung Galaxy S21 Plus Manufactured in February, 2021, with display 6.7 with chipsetSamsung Exynos 2100, vs Xiaomi Redmi Note 15 Pro 4G, Manufactured in December, 2025with chipsetMediaTek Helio G200 Ultra. Below are specs, tests, pros and cons for each device
Key Differences
Reasons to choose Samsung Galaxy S21 Plus
- Higher pixel density: 394ppi
- Supports newer USB: 3.2 vs 2
- Built-in eSIM
Reasons to choose Xiaomi Redmi Note 15 Pro 4G
- Larger display: 6.77in
- Lighter design: 195g vs 200g
- Higher battery capacity: 6500mAh vs 4800mAh
- Newer Bluetooth version: 5.3 vs 5
- Infrared port
Versions
| Memory Options | - 8/128 GB - 8/256 GB |
- 8/256 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 | 6.7 in | 6.77 in |
| Resolution | 1080x2400 pixels | 1080x2392 pixels |
| Aspect ratio | 20:9 | n/a |
| Pixel density | 394 ppi | 388 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | Yes (48-120 Hz) | Yes (60-120 Hz) |
| Max brightness | 1300 nits | n/a |
| HDR support | Yes HDR10+ | n/a |
| Screen-to-body ratio | 88.7 % | 89.1 % |
| Features | - DCI-P3 - Always-On Display |
- DCI-P3 - Always-On Display - DC dimming |
| sRGB gamut | 98.9 % | n/a |
| PWM (Flicker) | 240 Hz | n/a |
| Response time | 6.2 ms | n/a |
| Contrast | ∞ Infinite | n/a |
Design & Build
| Height | 161.5 mm (6.36 in) | 163.2 mm (6.43 in) |
| Width | 75.6 mm (2.98 in) | 76.3 mm (3 in) |
| Thickness | 7.8 mm (0.31 in) | 8 mm (0.31 in) |
| Weight | 200 g (7.05 oz) | 195 g (6.88 oz) |
| Water resistance | IP68 | IP65 |
| Back panel | Glass | Plastic |
| Frame | Metal | Metal |
| Colors | - Black - Silver - Gold - Red - Purple |
- Black - Gray - Blue |
| Fingerprint sensor | Yes In-Display | Yes, In-Display |
Screen-to-body ratio
Performance
| Chipset | Samsung Exynos 2100 | MediaTek Helio G200 Ultra |
| Max Frequency | 2840 MHz | 2500 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) |
- 6/2 (Cortex-A55) - 2/2.2 (Cortex-A76) |
| Process | Samsung | TSMC |
| Transistor Size | 5 nm | 6 nm |
| Neural Processor | Yes | Yes |
| Graphics | Mali-G78 MP14 | Mali-G57 MP2 |
| GPU Cores | 896 | 64 |
| GPU Frequency | 854 MHz | 1100 MHz |
| FLOPS | 1530.4 GFLOPS | 140.8 GFLOPS |
| Geekbench 6 (Single-Core) | 1428 | 734 |
| Geekbench 6 (Multi-Core) | 3840 | 2008 |
| CPU | 262973 | 139717 |
| GPU | 294382 | 65836 |
| Memory | 147307 | 124991 |
| UX | 214686 | 117387 |
| NanoReview Score | 919348 | 447931 |
| 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 | 8 GB |
| Memory Type | LPDDR5 | LPDDR4X |
| Memory Frequency | 2750 MHz | 2133 MHz |
| Channels | 2 | 2 |
| Storage Capacity | - 128 GB - 256 GB | 256 GB |
| Storage Type | UFS 3.1 | UFS 2.2 |
| Memory Card | No | MicroSD |
Software
| OS | Android 11 (Upgradeable to Android 14) | Android 15 |
| OS Size | 27.2 GB | n/a |
| UI Skin | One UI 6 | HyperOS 2.0 |
Battery
| Volume | 4800 mAh | 6500 mAh |
| Max Charging Power | 25 W | 18 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 |
| Full Charge Time | 1:12 h | n/a |
| 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 | 200 MP |
| Photo resolution | 4000x3000 pixels | n/a |
| Zoom | Optical, 1.1x | Digital |
| Flash | Dual LED | LED |
| Stabilization | Optical | Optical |
| 8K Recording | Up to 24FPS | No |
| 4K Recording | Yes (Up to 60 fps) | No |
| 1080p Recording | Yes (Up to 60 fps) | Yes (Up to 60 fps) |
| Slow Motion | 960 fps (720p) | n/a |
| Wide-angle lens | 120 ° | 120 ° |
| Lenses count | Standard: 12 MP Telephoto: 64 MP Ultra-wide: 12 MP |
Standard: 200 MP Ultra-wide: 8 MP |
| Features | - Bokeh effect - Pro mode - RAW support |
- Bokeh effect - Pro mode |
| Matrix | 12 MP | 200 MP |
| Aperture | f/1.8 | f/2.2 |
| Focal length | 26 mm | 25 mm |
| Sensor | Sony IMX555 | n/a |
| Sensor size | 1/1.76 | 1/4 (0.25) |
| Pixel size | 1.8 μm | 0.7 μm |
| Autofocus | Phase autofocus (Dual Pixel) | Phase autofocus |
| Stabilization | Optical | Optical |
| Matrix | 64 MP | n/a |
| Aperture | f/2.0 | n/a |
| Focal length | 28 mm | n/a |
| Sensor | Samsung Bright S5KGW2 | n/a |
| Sensor size | 1/1.72 | n/a |
| Pixel size | 0.8 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 | n/a |
| Sensor size | 1/2.55 | 1/4 (0.25) |
| Pixel size | 1.4 μm | 1.12 μm |
| Stabilization | Digital | Digital |
| Bokeh | 70 | n/a |
| Preview | 72 | n/a |
| Zoom | 126 | n/a |
Front camera
| Matrix | 10 MP | 32 MP |
| Photo resolution | 3872x2592 pixels | n/a |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 26 mm | n/a |
| Sensor | Sony IMX374 | CMOS |
| Sensor size | 1/3.24 | 1/3 (0.33) |
| Pixel size | 1.22 μm | 0.7 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 5 (802.11 a/b/g/n/ac/ax) |
| 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, 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 |
| NFC* | Yes | Varies by region |
| 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 | n/a |
| 3G Bands | WCDMA Band 1, 2, 4, 5, 8 | 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 | 24 | n/a |
| 5G Support | Yes | No |
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 | December, 2025 yr |
| Release Date | February, 2021 yr | December, 2025 yr |
| Launch Price ($) | 1000 | 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 |
*
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
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