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Galaxy A21s vs Poco X3 NFC

Samsung Galaxy A21s vs Xiaomi Poco X3 NFC

What Galaxy A21s does better (3) and where Poco X3 NFC wins (20) — every spec side by side.

Samsung · 2020Galaxy A21s

4.6Score

3 advantages≈ $240

Xiaomi · 2020Poco X3 NFC

6.4Score

20 advantages≈ $110

Higher score

3.4Display5.5

2.2Performance3.2

5.7Camera7.4

4.0Battery7.3

5.0Features4.7

Dimensions

Size comparison

Galaxy A21sPoco X3 NFC

	Galaxy A21s	Poco X3 NFC	Difference
Height	163.7 mm	165.3 mm	−1.6 mm
Width	75.3 mm	76.8 mm	−1.5 mm
Thickness	8.9 mm	9.4 mm	−0.5 mm
Weight	192 g	215 g	−23 g

Drawn to the same scale from the official dimensions (front and side).

Why is Galaxy A21s better than Poco X3 NFC?

Peak brightness540 nits vs 450 nits+20%
Weight192 g vs 215 g+12%
Thickness8.9 mm vs 9.4 mm+6%

Why is Poco X3 NFC better than Galaxy A21s?

AnTuTu score107,157 vs 283,7502.6×
Wired charging15 W vs 33 W2.2×
Refresh rate60 Hz vs 120 Hz2×
Geekbench 6 (multi-core)1,100 vs 1,777+62%
Stereo speakersNo · Galaxy A21s: Yes
RAM6 GB vs 8 GB+33%
Main camera48 MP vs 64 MP+33%
Battery capacity5,000 mAh vs 5,160 mAh+3%
Pixel density270 ppi vs 395 ppi+46%
Charged in 30 min25% vs 62%2.5×
Measured brightness490 nits vs 631 nits+29%
Storage (base)32 GB vs 64 GB2×

Specifications

Side by side

Only differences	Samsung Galaxy A21s≈ $2404.6	Xiaomi Poco X3 NFC≈ $1106.4
Design
Weight	192 g	215 g
Thickness	8.9 mm	9.4 mm
Height	163.7 mm	165.3 mm
Width	75.3 mm	76.8 mm
Frame	Plastic	Aluminium
Back	Plastic	Plastic
Ingress protection	—	IP53
Water resistance (IPx)	—	IPx3
Glass protection	—	Corning Gorilla Glass 5
Colours	Black, White, Blue, Red	Cobalt Blue, Shadow Gray
Display
Screen size	6.5″	6.7″
Panel	PLS LCD	IPS LCD
OLED panel	No	No
Resolution (width)	720 px	1,080 px
Resolution (height)	1,600 px	2,400 px
Pixel density	270 ppi	395 ppi
Refresh rate	60 Hz	120 Hz
Peak brightness	540 nits	450 nits
Measured brightness	490 nits	631 nits
Screen-to-body ratio	82.8%	84.6%
HDR	—	Yes
Performance
Chipset	Exynos 850	Qualcomm SM7150-AC Snapdragon 732G
Chip maker	Exynos	Qualcomm
Process	8 nm	8 nm
CPU cores	8	8
CPU frequency	2 GHz	2.3 GHz
GPU	Mali-G52	Adreno 618
AnTuTu score	107,157	283,750
Geekbench 6 (multi-core)	1,100	1,777
3DMark Wild Life Extreme	—	336
Memory
RAM	6 GB	8 GB
Storage (max)	128 GB	128 GB
Storage (base)	32 GB	64 GB
Storage type	eMMC 5.1	UFS 2.1
Memory card slot	Yes	Yes
Camera
Main camera	48 MP	64 MP
Main camera aperture	f/2	f/1.9
Main sensor size	1/2.0"	1/1.73"
Rear cameras	2	2
Optical stabilisation	No	No
Ultra-wide camera	Yes	Yes
Telephoto camera	No	No
Max video	1080p	4K
4K video frame rate	—	30 fps
Selfie camera	13 MP	20 MP
4K selfie video	No	No
Battery
Battery capacity	5,000 mAh	5,160 mAh
Battery type	Li-Po	Li-Po
Wired charging	15 W	33 W
Charged in 30 min	25%	62%
Wireless charging	No	No
Connectivity
5G	No	No
eSIM	No	No
Dual SIM	Yes	Yes
Wi-Fi standard	Wi-Fi 5	Wi-Fi 5
Bluetooth	5	5.1
NFC	Yes	Yes
USB	USB Type-C 2.0	USB Type-C 2.0
USB version	2	2
Infrared port	—	Yes
Satellite navigation	GLONASS, GALILEO, BDS	GLONASS, BDS
Features
Stereo speakers	No	Yes
3.5 mm headphone jack	Yes	Yes
Loudspeaker loudness	-30 LUFS	-25.3 LUFS
Fingerprint sensor	Rear	Side
Sensors	Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
SAR (head)	0.42 W/kg	0.56 W/kg
Software
OS at launch	Android 10	Android 10
Platform	Android	Android
Interface	One UI 4.1	MIUI 14