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Xiaomi Poco X3 NFC (128GB) vs Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)

Side by side comparison between Xiaomi Poco X3 NFC vs Samsung Galaxy A21s phones, differences, pros, cons with full specifications. What's the better?

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Compare Samsung Galaxy A21s XXiaomi Poco X3 NFC (128GB)25Points
Xiaomi Poco X3 NFC (128GB)
6.67"
IPS

1080x2400

64
MP

20mp

6GB
RAM

64bit Octa

5160
mAh

(Non removable)

vs
03PointsSamsung Galaxy A21s (SM-A217M/DS 64GB/3GB)Compare Xiaomi Poco X3 NFC X
Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)
6.5"
PLS

720x1600

48
MP

13mp

3GB
RAM

64bit Octa

5000
mAh

(Non removable)

What's the better phone? Xiaomi Poco X3 NFC (128GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

Poco X3 NFC (128GB)25 Advantages Xiaomi Poco X3 NFC (128GB)vsGalaxy A21s (SM-A217M/DS 64GB/3GB)3 Advantages Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)
+2.3Ghz 64bit Octa-Core8%
More powerful processor, you can open your applications faster
vs2Ghz 64bit Octa-Core
+6GB LPDDR4X100%
More RAM memory. Typically more responsive and better for multitasking.
vs3GB LPDDR4X
+128GB (106GB available)121%
More internal storage for applications and files
vs64GB (48GB available)
+UFS 2.1Advantage
Fastest write and read storage.
vseMMC 5.1
+Aluminum body, glass front, plastic backAdvantage
More resistant material
vsPlastic body, glass front
+TFT IPS LCDAdvantage
TFT IPS LCD display is brighter and more vivid
vsTFT PLS
+HDR10Advantage
The HDR10 display provides vibrant colors and more details
vsNot supported
+120Hz100%
The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
vs60Hz
+1080x2400 pixels125%
Higher resolution screen
vs720x1600 pixels
+395 PPI46%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs270 PPI
+6.67"3%
Larger screen
vs6.5"
+(quad camera) 64MP + 13MP + 2MP + 2MP35%
Higher resolution main camera
vs(quad camera) 48MP + 8MP + 2MP + 2MP
+Dual-LED flashAdvantage
The Dual-LED flash helps in dark places or in low light
vsLED flash
+1/1.73" inches16%
The larger sensor camera lets you take photos with better depth.
vs1/2" inches
+f/1.9 (aperture)5%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
vsf/2.0 (aperture)
+(front) 20MP56%
Higher resolution secondary camera to take pictures and selfies
vs(front) 13MP
+4K UHD (3840x2160)3 times
More image quality for recording videos with the primary camera
vsFull HD (1920x1080)
+(4G+ LTE-A) 800 Mbps167%
Faster for surfing the internet and download files
vs(4G+ LTE-A) 300 Mbps
+Ambient Light sensorAdvantage
Sensors help you use the device
vsNot supported
+5160 mAh3%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs5000 mAh
+33W120%
More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.
vs15W
+5.1 + A2DP/LEAdvantage
Bluetooth 5.1 + A2DP/LE is newer and faster
vs5.0 + A2DP/LE
+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
vsNot supported
+Gorilla Glass 5Advantage
Protection against scratches on the screen lets you carry your phone with your keys
vsNot supported
+IP53 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example
vsNot supported
215 grams (7.53 ounces)vs+192 grams (6.72 ounces)12%
Lighter
9.4 millimeters (0.37 inches)vs+8.9 millimeters (0.35 inches)6%
Thinner
2 slots (Dual-SIM)
(hybrid slot/shares the same microSD slot)
vs+2 slots (Dual-SIM)
(dedicated slot)Advantage
More SIM card slots. You can choose more carriers.

28 Common items in both devices
Until 1TB microSD, microSDXC / Until 512GB microSD, microSDXC
16 million
Only digital zoom
PDAF: phase detection autofocus
EIS: Digital stabilization
HDR photo on both cameras
(front) Full HD (1920x1080)
+21 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differencesClear highlight
Physical featuresXiaomi Poco X3 NFC (128GB)Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)
ModelPoco X3 NFC (128GB)Galaxy A21s (SM-A217M/DS 64GB/3GB)
Other model namesXiaomi Poco X3 NFC M2007J20CG, M2007J20CTGalaxy A21s SM-A217M/Dual-Sim (64GB + 3GB RAM)
Country or region available(Global, International)
(Global, International)
(Latin America)Brazil
(Latin America), Brazil
BrandXiaomiSamsung
Release dateSeptember, 2020June, 2020
Depth9.4 millimeters (0.37 inches)8.9 millimeters (0.35 inches)
Size (width x height)76.8 x 165.3 millimeters (3.02 x 6.51 in)75.3 x 163.7 millimeters (2.96 x 6.44 in)
Weight215 grams (7.53 ounces)192 grams (6.72 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsAluminum body, glass front, plastic backPlastic body, glass front
Protection against water and othersIP53 certified: protection against dust and splashingNot supported
System (OS)Xiaomi Poco X3 NFC (128GB)Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)
Operating systemAndroid 10Android 10
Firmware updatefeature not registeredfeature not registered
HardwareXiaomi Poco X3 NFC (128GB)Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)
Chipset64bit - Qualcomm Snapdragon 732G SM7150-AC (8nm)64bit - Samsung Exynos 850 Octa (8nm)
CPU processorOcta-Core, 2 processors:
2.3Ghz Dual-Core Kryo 470 Gold
1.8Ghz Hexa-Core Kryo 470 Silver
Octa-Core, 2 processors:
2Ghz Quad-Core ARM Cortex-A55
2Ghz Quad-Core ARM Cortex-A55
GPU graphical controllerQualcomm Adreno 618ARM Mali-G52 MP1
RAM memory6GB LPDDR4X3GB LPDDR4X
Internal storage128GB (106GB available)
UFS 2.1
64GB (48GB available)
eMMC 5.1
External storageUntil 1TB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot)
Until 512GB microSD, microSDXC
(dedicated slot)
DisplayXiaomi Poco X3 NFC (128GB)Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)
Display typeTFT IPS LCDTFT PLS
Screen size6.67" inches6.5" inches
Screen-to-body ratio~84.6% (screen-to-body ratio)~82.8% (screen-to-body ratio)
Display resolution1080x2400 pixels (20:9)720x1600 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)395 PPI270 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 5Not supported
Display features120Hz, 450 nits, HDR1060Hz
Mobile networksXiaomi Poco X3 NFC (128GB)Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)
Dual-SIMDual-SIM Standby - Call active on one sim card
(hybrid slot/shares the same microSD slot)
Dual-SIM Standby - Call active on one sim card
(dedicated slot)
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum download/upload800/150 Mbps300/150 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G
Frequency, bandsExpand band detailsCollapse details
GSM Mhz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1700/1900/2100UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat15/13 (1, 2, 3, 4, 5, 7, 8, 20, 28)
TD-LTE (38, 40, 41)
VoLTE
LTE Cat7/13 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 66)
TD-LTE (38, 40, 41)
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkUMTS 850/900/1700/1900/2100Not supported
Secondary 4G networkNot supportedNot supported
Secondary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+GPRS, EDGE
CallingXiaomi Poco X3 NFC (128GB)Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
SpeakerphoneSupportedSupported
Video callingSupportedSupported
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder, Voice commands
CameraXiaomi Poco X3 NFC (128GB)Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)
Back camera (main camera)(quad camera)
64 megapixels
13MP ultrawidef/2.2119º1.0µm
2MP macrof/2.4
2MP depthf/2.4
(quad camera)
48 megapixels
8MP ultrawidef/2.21/4"1.12µm123º
2MP macrof/2.4
2MP depthf/2.4
Main camera resolution10120x6328 pixels8000x6000 pixels
Video recording (primary)4K UHD (3840x2160) 30 fpsFull HD (1920x1080) 30 fps
FlashDual-LED flashLED flash
Focal aperturef/1.9 (aperture)f/2.0 (aperture)
Focal lengthfeature not registered26mm lens
Sensor size1/1.73" inches1/2" inches
Pixel size0.8µm pixel0.8µm pixel
AutofocusPDAF: phase detection autofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationEIS: Digital stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedNot supported
HDRHDR photo on both camerasHDR photo on both cameras
2ª cameraXiaomi Poco X3 NFC (128GB)Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)
Front camera (secondary)20 megapixels13 megapixels
Front camera resolution5184x3840 pixels4128x3096 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.2 (aperture)f/2.2 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor size1/3.4" inches1/3.1" inches
Pixel size0.8µm pixel1.12µm pixel
MultimediaXiaomi Poco X3 NFC (128GB)Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)
RadioFMFM
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC
ConnectivityXiaomi Poco X3 NFC (128GB)Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)
USBUSB 2.0 Type-C, USB OTG On-The-GoUSB 2.0 Type-C reversible connector
TV outputUSB Type-C (reversible)Not supported
Audio output3.5mm jack3.5mm jack
Bluetooth5.1 + A2DP/LE5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
DLNANot supportedNot supported
NFCSupportedNot supported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDouA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
Infrared portSupportedNot supported
Other functionsXiaomi Poco X3 NFC (128GB)Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)
Active noise cancellationSupportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
SensorsAccelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Face unlock
Fingerprint sensor (side-mounted)
Accelerometer
Proximity sensor
Compass
Gyroscope
Face unlock
Fingerprint sensor (rear-mounted)
Other features- Colors: Cobalt Blue, Shadow Gray
- MIUI 12
- Silicone Case included
- Screen protector included
- Dual stereo speakers
- 24-bit/192kHz audio
- LiquidCool 1.0 heat pipe
- Google Pay
- WiFi direct, hotspot
- Colors: Black, White, Blue, Red
- One UI 2.0
- WiFi direct, hotspot
Power supplyXiaomi Poco X3 NFC (128GB)Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)
BatteryLiPo: Li-Ion polymer (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity5160 mAh5000 mAh
Charger, watts33W Fast battery charging15W (9V/1.67A) Fast battery charging
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered
Radiation rateXiaomi Poco X3 NFC (128GB)Samsung Galaxy A21s (SM-A217M/DS 64GB/3GB)
SAR 1.6W/kg (USA, Mexico, etc.)0.77W/kg (head) | 0.61W/kg (body)0.54W/kg (head) | 1.14W/kg (body)
SAR 2W/kg (Europe, UK, etc.)0.56W/kg (head) | 0.99W/kg (body)feature not registered
X

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