Xiaomi Poco X3 NFC vs Samsung Galaxy A21s
Here we compared two smartphones: the 6.67-inch Xiaomi Poco X3 NFC (with Qualcomm Snapdragon 732G) that was released on September 7, 2020, against the Samsung Galaxy A21s, which is powered by Exynos 850 and came out 3 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the gadgets.
Key differences
Reasons to consider the Xiaomi Poco X3 NFC
- Water-resistant body (IP53 classification)
- 2.7x better performance in AnTuTu Benchmark (349K versus 129K)
- Higher display refresh rate – 120 Hz
- 46% higher pixel density (395 vs 270 PPI)
- Delivers 28% higher maximum brightness (632 against 494 nits)
- Newer Bluetooth version (v5.1)
- Slow-motion recording at 960FPS
- Ability to record video in 4K resolution
- Stereo speakers
- Has a built-in infrared port
Reasons to consider the Samsung Galaxy A21s
- Weighs 23 grams less
Review
Display
Screen quality, color accuracy, brightness
Performance
CPU/GPU performance in apps and games
Battery
Battery life, charging type and speed
Camera
Photo and video recording quality
Connectivity
Networks, ports, data transmission
NanoReview score
Final comparison evaluation
Value for money
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Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | IPS LCD | PLS TFT |
| Size | 6.67 inches | 6.5 inches |
| Resolution | 1080 x 2400 pixels | 720 x 1600 pixels |
| Aspect ratio | 20:9 | 20:9 |
| PPI | 395 ppi | 270 ppi |
| Refresh rate | 120 Hz | 60 Hz |
| HDR support | Yes, HDR10 | No |
| Screen protection | Corning Gorilla Glass 5 | Tempered glass |
| Screen-to-body ratio | 84.6% | 82.8% |
| RGB color space | 99.7% | 88.4% |
| PWM | 2358 Hz | 500 Hz |
| Response time | 35.4 ms | 30.4 ms |
| Contrast | - | 1500:1 |
Max. Brightness
Design and build
| Height | 165.3 mm (6.51 inches) | 163.6 mm (6.44 inches) |
| Width | 76.8 mm (3.02 inches) | 75.3 mm (2.96 inches) |
| Thickness | 9.4 mm (0.37 inches) | 8.9 mm (0.35 inches) |
| Weight | 215 gramm (7.58 oz) | 192 gramm (6.77 oz) |
| Waterproof | IP53 | No |
| Rear material | Plastic | Plastic |
| Frame material | Plastic | Plastic |
| Colors | Gray, Blue | Black, Blue, Red |
| Fingerprint scanner | Yes, in home button | Yes, rear |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 732G | Samsung Exynos 850 |
| Max. clock | 2300 MHz | 2000 MHz |
| CPU cores | 8 (2 + 6) | 8 (8) |
| Architecture | - 6 cores at 1.8 GHz: Kryo 470 Silver (Cortex-A55) - 2 cores at 2.3 GHz: Kryo 470 Gold (Cortex-A76) |
- 8 cores at 2 GHz: Cortex-A55 |
| L3 cache | 1 MB | - |
| Lithography process | 8 nanometers | 8 nanometers |
| Graphics | Adreno 618 | Mali-G52 MP1 |
| GPU clock | 810 MHz | 820 MHz |
| FLOPS | ~435 GFLOPS | ~126 GFLOPS |
| RAM size | 6 GB | 3, 4 GB |
| Memory type | LPDDR4X | LPDDR4X |
| Memory clock | 1866 MHz | 1866 MHz |
| Channels | 2 | 2 |
| Storage size | 64, 128 GB | 32, 64 GB |
| Storage type | UFS 2.1 | eMMC 5.1 |
| Memory card | MicroSD | MicroSD |
| Memory card max. size | Up to 256 GB | Up to 512 GB |
Benchmarks
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
AnTuTu Benchmark 9
| CPU | 106614 | 35291 |
| GPU | 93617 | 25718 |
| Memory | 53750 | 32247 |
| UX | 93783 | 34753 |
| Total score | 349096 | 129157 |
3DMark Wild Life Performance
| Stability | 98% | 99% |
| Graphics test | 5 FPS | 2 FPS |
| Graphics score | 842 | 420 |
| PCMark 3.0 score | 8880 | 5521 |
Software
| Operating system | Android 10 (Can be upgraded to Android 11) | Android 10 (Can be upgraded to Android 11) |
| ROM | MIUI 12.5 | One UI 3.0 |
| OS size | 20.5 GB | 12 GB |
Battery
| Capacity | 5160 mAh | 5000 mAh |
| Charge power | 33 W | 15 W |
| Battery type | Li-Po | Li-Po |
| Replaceable | No | No |
| Wireless charging | No | No |
| Reverse charging | No | No |
| Fast charging | Yes (55% in 30 min) | Yes (50% in 60 min) |
| Full charging time | 1:15 hr | 2:10 hr |
| Web browsing | 13:40 hr | 12:34 hr |
| Watching video | 13:01 hr | 14:21 hr |
| Gaming | 05:31 hr | 05:26 hr |
| Standby | 119 hr | 120 hr |
General battery life
Smartphones With the Best Battery Life (70th and 74th place)
Camera
| Matrix | 64 megapixels | 48 megapixels |
| Image resolution | 9248 x 6920 | 8000 x 6000 |
| Zoom | Digital | Digital |
| Flash | Dual LED | LED |
| Stabilization | Digital | Digital |
| 8K video recording | No | No |
| 4K video recording | Up to 30FPS | No |
| 1080p video recording | Up to 60FPS | Up to 30FPS |
| Slow motion | 960 FPS (720p) | No |
| Angle of widest lens | 119° | 123° |
| Lenses | 4 (64 MP + 13 MP + 2 MP + 2 MP) | 4 (48 MP + 8 MP + 2 MP + 2 MP) |
| Wide (main) lens | - 64 MP - Aperture: f/1.9 - Pixel size: 0.8 micron - Sensor: 1/1.73", Sony IMX682 (Exmor-RS CMOS) - Phase autofocus |
- 48 MP - Aperture: f/2.0 - Focal length: 26 mm - Pixel size: 0.8 micron - Sensor: 1/2.0" (CMOS) - Phase autofocus |
| Ultra-wide lens | - 13 MP - Aperture: f/2.2 - Pixel size: 1 micron |
- 8 MP - Aperture: f/2.2 - Pixel size: 1.12 micron - Sensor: 1/4.0" (CMOS) |
| Macro lens | - 2 MP - Aperture: f/2.4 - Pixel size: 1.75 micron |
- 2 MP - Aperture: f/2.4 |
| Depth lens | - 2 MP - Aperture: f/2.4 - Pixel size: 1.75 micron |
- 2 MP - Aperture: f/2.4 |
| Camera features | - Bokeh mode - Pro mode |
- Bokeh mode |
| Samples | Photo samples of Xiaomi Poco X3 NFC from DxOMark | - |
| Megapixels | 20 megapixels | 13 megapixels |
| Image resolution | 5963 x 3354 | 4128 x 3096 |
| Aperture | f/2.2 | f/2.2 |
| Pixel size | 0.8 microns | 1.12 microns |
| Sensor type | CMOS | CMOS |
| Sensor size | 1/3.4" | 1/3.1" |
| Video resolution | 1080p (Full HD) at 30 FPS | 1080p (Full HD) at 30 FPS |
DxOMark camera tests
Photo quality
Video quality
Generic camera score
Connectivity
| Wi-Fi standard | Wi-Fi 5 (802.11 a/b/g/n/ac) | Wi-Fi 5 (802.11 a/b/g/n/ac) |
| Wi-Fi features | - Dual Band - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
- Dual Band - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
| Bluetooth version | 5.1 | 5 |
| Bluetooth features | LE, A2DP | PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP |
| USB type | USB Type-C | USB Type-C |
| USB version | 2 | 2 |
| USB features | - Charging - USB-Storage mode - USB-Host mode - OTG |
- Charging - USB-Storage mode - OTG |
| GPS | GPS, GLONASS, Beidou, Galileo, QZSS, SBAS | GPS, GLONASS, Beidou, Galileo |
| NFC* | Yes | Yes |
| Infrared port | Yes | No |
| Number of SIM* | 2 | 2 |
| Type of SIM card | Nano | Nano |
| Multi SIM mode | Standby | Standby |
| eSIM support* | No | No |
| Hybrid slot | Yes | No |
| LTE Cat* | 15 | 13 |
| 5G support | No | No |
Sound
| Speakers | Stereo | Mono |
| Headphone audio jack | Yes | Yes |
| FM radio | Yes | Yes |
| Dolby Atmos | Yes | Yes |
Speakers test
Max. loudness
Other
| Category | Mid-range | Budget |
| Announced | September 2020 | May 2020 |
| Release date | September 2020 | June 2020 |
| SAR (head) | 0.558 W/kg | 0.23 W/kg |
| SAR (body) | 0.986 W/kg | 1.38 W/kg |
| Sensors | - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Hall-effect sensor - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
Conclusion
After analyzing all the data, we think that the Xiaomi Poco X3 NFC is definitely a better buy.
Cast your vote
Total votes: 122
