Home Phone comparison Xiaomi Poco X3 NFC and Samsung Galaxy A21s - Which is better?

Xiaomi Poco X3 NFC vs Samsung Galaxy A21s

53 out 100
Xiaomi Poco X3 NFC
VS
39 out 100
Samsung Galaxy A21s
Xiaomi Poco X3 NFC
Samsung Galaxy A21s

Compared 2 smartphones : Xiaomi Poco X3 NFC Manufactured in September, 2020, with display 6.67 with chipsetQualcomm Snapdragon 732G, vs Samsung Galaxy A21s, Manufactured in June, 2020 with chipsetSamsung Exynos 850. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Xiaomi Poco X3 NFC
  • Larger display: 6.67in
  • Higher pixel density: 395ppi
  • Higher refresh rate: 120Hz
  • Higher battery capacity: 5160mAh vs 5000mAh
  • Newer Bluetooth version: 5.1 vs 5
  • Infrared port
Reasons to choose Samsung Galaxy A21s
  • Lighter design: 192g vs 215g

Versions

Available versions and configurations
Memory Options - 6/64 GB
- 6/128 GB
- 8/128 GB		 - 2/32 GB
- 3/32 GB
- 3/64 GB
- 3/128 GB
- 4/32 GB
- 4/64 GB
- 4/128 GB
- 6/64 GB
- 6/128 GB

Review

Key Specs Xiaomi Poco X3 NFC and Samsung Galaxy A21s
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
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
Customize your score
Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Xiaomi Poco X3 NFC
vs
Samsung Galaxy A21s

Display

Display quality comparison
Type IPS LCD PLS TFT
Size 6.67 in 6.5 in
Resolution 1080x2400 pixels 720x1600 pixels
Aspect ratio 20:9 20:9
Pixel density 395 ppi 270 ppi
Refresh rate 120 Hz 60 Hz
Adaptive refresh rate No No
Max brightness 450 nits 540 nits
HDR support Yes HDR10 No
Touch Sampling Rate 240 Hz n/a
Screen-to-body ratio 84.6 % 82.9 %
Display test
Peak brightness (auto)
Xiaomi Poco X3 NFC
629 nits
Samsung Galaxy A21s
487 nits
sRGB gamut99.7 %88.4 %
PWM (Flicker)2358 Hz500 Hz
Response time35.4 ms30.4 ms
Contrastn/a1500:1
Sources: NotebookCheck [Xiaomi Poco X3 NFC], [Samsung Galaxy A21s]

Design & Build

Design and ergonomics comparison
Height 165.3 mm (6.51 in) 163.6 mm (6.44 in)
Width 76.8 mm (3.02 in) 75.3 mm (2.96 in)
Thickness 9.4 mm (0.37 in) 8.9 mm (0.35 in)
Weight 215 g (7.58 oz) 192 g (6.77 oz)
Water resistance IP53 No
Back panel Plastic Plastic
Frame Metal Plastic
Colors - Gray
- Blue		 - Black
- Blue
- Red
Fingerprint sensor Yes In-Button Yes rear
Screen-to-body ratio
Xiaomi Poco X3 NFC
84.6 %
Samsung Galaxy A21s
82.9 %

Performance

Testing Xiaomi Poco X3 NFC and Samsung Galaxy A21s In benchmarks
Processor
Chipset Qualcomm Snapdragon 732G Samsung Exynos 850
Max Frequency 2300 MHz 2000 MHz
CPU Cores 8 (2 + 6) 8 (8)
Architecture - 6/1.8 (Kryo 470 Silver (Cortex-A55))
- 2/2.3 (Kryo 470 Gold (Cortex-A76))		 8/2 (Cortex-A55)
Process Samsung Samsung
Transistor Size 8 nm 8 nm
Neural Processor Hexagon 688 No
Graphics Adreno 618 Mali-G52 MP1
GPU Cores 256 24
GPU Frequency 825 MHz 850 MHz
FLOPS 422.4 GFLOPS 40.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Poco X3 NFC
722
Samsung Galaxy A21s
484
Geekbench 6 (Multi-Core)
Xiaomi Poco X3 NFC
1878
Samsung Galaxy A21s
1523
Geekbench 6 (Single-Core)722484
Geekbench 6 (Multi-Core)18781523
AnTuTu 10
AnTuTu 10
Xiaomi Poco X3 NFC
395451
Samsung Galaxy A21s
191375
CPU13240668748
GPU7934526807
Memory7527059210
UX10843036610
NanoReview Score395451191375
3DMark Wild Life
3DMark Wild Life
Xiaomi Poco X3 NFC
1108
Samsung Galaxy A21s
425
Max Surface Temp.42.6 °C43.2 °C
Stability99 %98 %
Graphics Test6 fps2 fps
Graphics Score1108425
Sources: 3DMark [Xiaomi Poco X3 NFC], [Samsung Galaxy A21s]
PCMark 3.0
PCMark 3.0
Xiaomi Poco X3 NFC
8826
Samsung Galaxy A21s
5429
Writing score102795426
Web score70684708
Video editing59235145
Data manipulation75913808
NanoReview Score88265429

Memory

RAM
RAM Size 6 GB - 3 GB
- 4 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 1866 MHz 1866 MHz
Channels 2 2
Storage
Storage Capacity- 64 GB
- 128 GB		- 32 GB
- 64 GB
Storage TypeUFS 2.1eMMC 5.1
Memory CardMicroSDMicroSD

Software

OS Android 10 (Upgradeable to Android 12) Android 10 (Upgradeable to Android 12)
OS Size 20.5 GB 12 GB
UI Skin MIUI 14 One UI 4.1

Battery

Volume 5160 mAh 5000 mAh
Max Charging Power 33 W 15 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (55% in 30 min) Yes (50% in 60 min)
Full Charge Time 1:15 h 2:10 h
Battery Life Test
Battery Life
Xiaomi Poco X3 NFC
24:00
Samsung Galaxy A21s
25:00
Web Browsing09:56 h09:45 h
Video Playback13:59 h14:13 h
Games05:35 h05:34 h
Standby Mode116 h128 h

Main camera

Matrix 64 MP 48 MP
Photo resolution 9248x6920 pixels 8000x6000 pixels
Zoom Digital Digital
Flash Dual LED LED
Stabilization Digital Digital
8K Recording No No
4K Recording Yes (Up to 30 fps) No
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 960 fps (720p) No
Wide-angle lens 119 ° 123 °
Lenses count Standard: 64 MP
Ultra-wide: 13 MP
Macro: 2 MP
Depth: 2 MP		 Standard: 48 MP
Ultra-wide: 8 MP
Macro: 2 MP
Depth: 2 MP
Features - Bokeh effect
- Pro mode		 Bokeh effect
Main lens
Matrix64 MP48 MP
Aperturef/1.9f/2.0
Focal lengthn/a26 mm
SensorSony IMX682Samsung S5KGM2
Sensor size1/1.731/2.0
Pixel size0.8 μm0.8 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital
Ultra-wide lens
Matrix13 MP8 MP
Aperturef/2.2f/2.2
Sensor sizen/a1/4.0
Pixel size1 μm1.12 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi Poco X3 NFC
107
Samsung Galaxy A21s
n/a
Video quality
Xiaomi Poco X3 NFC
98
Samsung Galaxy A21s
n/a
Overall camera score
Xiaomi Poco X3 NFC
103
Samsung Galaxy A21s
n/a
Sources: DxOMark [Xiaomi Poco X3 NFC]

Front camera

Matrix 20 MP 13 MP
Photo resolution 5963x3354 pixels 4128x3096 pixels
Aperture f/2.2 f/2.2
Sensor CMOS CMOS
Sensor size 1/3.4 1/3.1
Pixel size 0.8 μm 1.12 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version 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
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotYesNo
2G BandsGSM: B2/3/5/8GSM850, GSM900, DCS1800, PCS1900
3G BandsWCDMA B1/2/4/5/8B1 (2100), B2 (1900), B5(850), B8 (900)
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B20/B28)LTE (B1/B2/B3/B5/B7/B8/B20/B28)
LTE category1513
5G SupportNoNo

Sound

Speakers Stereo Mono
3.5 mm Jack Yes Yes
FM Radio Yes Yes
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Xiaomi Poco X3 NFC
89.2 dB
Samsung Galaxy A21s
79.5 dB

Other

Class Mid-range Budget
Announced September, 2020 yr May, 2020 yr
Release Date September, 2020 yr June, 2020 yr
Launch Price ($) 245 200
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Hall Sensor
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi Poco X3 NFC the clear winner in this comparison.

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