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Samsung Galaxy M21s (SM-F415F/DS) vs Xiaomi Poco X3 Pro (J20SI 128GB)

Side by side comparison between Samsung Galaxy M21s vs Xiaomi Poco X3 Pro phones, differences, pros, cons with full specifications. What's the better?

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Compare Xiaomi Poco X3 Pro XSamsung Galaxy M21s (SM-F415F/DS)09Points
Samsung Galaxy M21s (SM-F415F/DS)
6.4"
AMOLED

1080x2340

64
MP

32mp

4GB
RAM

64bit Octa

6000
mAh

(Non removable)

vs
13PointsXiaomi Poco X3 Pro (J20SI 128GB)Compare Samsung Galaxy M21s X
Xiaomi Poco X3 Pro (J20SI 128GB)
6.67"
IPS

1080x2400

48
MP

20mp

6GB
RAM

64bit Octa

5160
mAh

(Non removable)

What's the better phone? Xiaomi Poco X3 Pro (J20SI 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!

Galaxy M21s (SM-F415F/DS)9 Advantages Samsung Galaxy M21s (SM-F415F/DS)vsPoco X3 Pro (J20SI 128GB)13 Advantages Xiaomi Poco X3 Pro (J20SI 128GB)
+191 grams (6.69 ounces)13%
Lighter
vs215 grams (7.53 ounces)
+8.9 millimeters (0.35 inches)6%
Thinner
vs9.4 millimeters (0.37 inches)
+Super AMOLEDAdvantage
Super AMOLED display is brighter and more vivid
vsTFT IPS LCD
+403 PPI2%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs395 PPI
+(triple camera) 64MP + 8MP + 5MP28%
Higher resolution main camera
vs(quad camera) 48MP + 8MP + 2MP + 2MP
+1/1.72" inches16%
The larger sensor camera lets you take photos with better depth.
vs1/2" inches
+(front) 32MP61%
Higher resolution secondary camera to take pictures and selfies
vs(front) 20MP
+6000 mAh16%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs5160 mAh
+2 slots (Dual-SIM)
(dedicated slot)Advantage
More SIM card slots. You can choose more carriers.
vs2 slots (Dual-SIM)
(hybrid slot/shares the same microSD slot)
2.3Ghz 64bit Octa-Corevs+2.96Ghz 64bit Octa-Core31%
More powerful processor, you can open your applications faster
4GB LPDDR4Xvs+6GB LPDDR4X50%
More RAM memory. Typically more responsive and better for multitasking.
64GB (49GB available)vs+128GB (106GB available)116%
More internal storage for applications and files
UFS 2.1vs+UFS 3.1Advantage
Fastest write and read storage.
Not supportedvs+HDR10Advantage
The HDR10 display provides vibrant colors and more details
60Hzvs+120Hz100%
The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
1080x2340 pixelsvs+1080x2400 pixels3%
Higher resolution screen
6.4"vs+6.67"4%
Larger screen
LED flashvs+Dual-LED flashAdvantage
The Dual-LED flash helps in dark places or in low light
(4G+ LTE-A) 300 Mbpsvs+(4G+ LTE-A) 800 Mbps167%
Faster for surfing the internet and download files
Not supportedvs+Proximity sensorAdvantage
Sensors help you use the device
15Wvs+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.
Not supportedvs+IP53 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example

33 Common items in both devices
Until 512GB microSD, microSDXC / Until 1TB microSD, microSDXC
Plastic body, glass front
16 million
Only digital zoom
PDAF: phase detection autofocus
EIS: Digital stabilization
HDR photo on both cameras
+26 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 featuresSamsung Galaxy M21s (SM-F415F/DS)Xiaomi Poco X3 Pro (J20SI 128GB)
ModelGalaxy M21s (SM-F415F/DS)Poco X3 Pro (J20SI 128GB)
Other model namesGalaxy M21s SM-F415F/Dual-Sim (4GB RAM)Xiaomi Poco X3 Pro M2102J20SI (128GB+6GB RAM)
Country or region available(Latin America)Brazil
(Latin America), Brazil
India
India
BrandSamsungXiaomi
Release dateNovember, 2020March, 2021
Depth8.9 millimeters (0.35 inches)9.4 millimeters (0.37 inches)
Size (width x height)75.1 x 159.2 millimeters (2.96 x 6.27 in)76.8 x 165.3 millimeters (3.02 x 6.51 in)
Weight191 grams (6.69 ounces)215 grams (7.53 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsPlastic body, glass frontPlastic body, glass front
Protection against water and othersNot supportedIP53 certified: protection against dust and splashing
System (OS)Samsung Galaxy M21s (SM-F415F/DS)Xiaomi Poco X3 Pro (J20SI 128GB)
Operating systemAndroid 10Android 11
Firmware updateAndroid 11feature not registered
HardwareSamsung Galaxy M21s (SM-F415F/DS)Xiaomi Poco X3 Pro (J20SI 128GB)
Chipset64bit - Samsung Exynos 9 Octa 9611 (10nm)64bit - Qualcomm Snapdragon 860 SM8150-AC (7nm)
CPU processorOcta-Core, 2 processors:
2.3Ghz Quad-Core ARM Cortex-A73
1.7Ghz Quad-Core ARM Cortex-A53
Octa-Core, 3 processors:
2.96Ghz Single-Core Kryo 485 Gold
2.42Ghz 3-Cores Kryo 485 Gold
1.78Ghz Quad-Core Kryo 485 Silver
GPU graphical controllerARM Mali-G72 MP3Qualcomm Adreno 640
RAM memory4GB LPDDR4X6GB LPDDR4X
Internal storage64GB (49GB available)
UFS 2.1
128GB (106GB available)
UFS 3.1
External storageUntil 512GB microSD, microSDXC
(dedicated slot)
Until 1TB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot)
DisplaySamsung Galaxy M21s (SM-F415F/DS)Xiaomi Poco X3 Pro (J20SI 128GB)
Display typeSuper AMOLEDTFT IPS LCD
Screen size6.4" inches6.67" inches
Screen-to-body ratio~84.1% (screen-to-body ratio)~84.6% (screen-to-body ratio)
Display resolution1080x2340 pixels (19.5:9)1080x2400 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)403 PPI395 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 3Gorilla Glass 6
Display features60Hz, 420 nits120Hz, 450 nits, HDR10
Mobile networksSamsung Galaxy M21s (SM-F415F/DS)Xiaomi Poco X3 Pro (J20SI 128GB)
Dual-SIMDual-SIM Standby - Call active on one sim card
(dedicated slot)
Dual-SIM Standby - Call active on one sim card
(hybrid slot/shares the same microSD slot)
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum download/upload300/50 Mbps800/150 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 Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66)
TD-LTE (38, 40, 41)
VoLTE
LTE Cat15/13 (1, 2, 3, 4, 5, 7, 8, 20, 28)
TD-LTE (38, 40, 41)
VoLTE
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 networkNot supportedUMTS 850/900/1700/1900/2100
Secondary 4G networkNot supportedNot supported
Secondary data networkGPRS, EDGEGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
CallingSamsung Galaxy M21s (SM-F415F/DS)Xiaomi Poco X3 Pro (J20SI 128GB)
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
CameraSamsung Galaxy M21s (SM-F415F/DS)Xiaomi Poco X3 Pro (J20SI 128GB)
Back camera (main camera)(triple camera)
64 megapixels
8MP ultrawidef/2.2123º12mm1/4"1.12µm
5MP depthf/2.2
(quad camera)
48 megapixels
8MP ultrawidef/2.2119º1.0µm
2MP macrof/2.4
2MP depthf/2.4
Main camera resolution10120x6328 pixels8000x6000 pixels
Video recording (primary)4K UHD (3840x2160) 30 fps4K UHD (3840x2160) 30 fps
FlashLED flashDual-LED flash
Focal aperturef/1.8 (aperture)f/1.8 (aperture)
Focal length26mm lensfeature not registered
Sensor size1/1.72" 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 cameraSamsung Galaxy M21s (SM-F415F/DS)Xiaomi Poco X3 Pro (J20SI 128GB)
Front camera (secondary)32 megapixels20 megapixels
Front camera resolution6528x4896 pixels5184x3840 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.0 (aperture)f/2.2 (aperture)
Focal length26mm lensfeature not registered
Sensor size1/2.8" inches1/3.4" inches
Pixel size0.8µm pixel0.8µm pixel
MultimediaSamsung Galaxy M21s (SM-F415F/DS)Xiaomi Poco X3 Pro (J20SI 128GB)
RadioFM (RDS)FM
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
ConnectivitySamsung Galaxy M21s (SM-F415F/DS)Xiaomi Poco X3 Pro (J20SI 128GB)
USBUSB 2.0 Type-C reversible connectorUSB 2.0 Type-C, USB OTG On-The-Go
TV outputNot supportedUSB Type-C (reversible)
Audio output3.5mm jack3.5mm jack
Bluetooth5.0 + 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
NFCNot supportedNot supported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDouA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
Infrared portNot supportedSupported
Other functionsSamsung Galaxy M21s (SM-F415F/DS)Xiaomi Poco X3 Pro (J20SI 128GB)
Active noise cancellationSupportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
SensorsAccelerometer
Compass
Ambient Light sensor
Gyroscope
Face unlock
Fingerprint sensor (rear-mounted)
Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Face unlock
Fingerprint sensor (side-mounted)
Other features- Colors: Black, Blue
- One UI 2.5, 3.1
- Stereo sound not supported
- DeX not supported
- WiFi direct, hotspot
- Colors: Phantom Black, Frost Blue, Metal Bronze
- MIUI 12
- Silicone Case included
- 24-bit/192kHz audio
- Dual stereo speakers
- LiquidCool 1.0 Plus
- Cooling up to 6 °C
- WiFi direct, hotspot
Power supplySamsung Galaxy M21s (SM-F415F/DS)Xiaomi Poco X3 Pro (J20SI 128GB)
BatteryLiPo: Li-Ion polymer (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity6000 mAh5160 mAh
Charger, watts15W Fast battery charging33W Fast battery charging
Talk time autonomy2880 minutes | 48 hours | 2 daysfeature not registered
Standbyfeature not registeredfeature not registered
Radiation rateSamsung Galaxy M21s (SM-F415F/DS)Xiaomi Poco X3 Pro (J20SI 128GB)
SAR 1.6W/kg (USA, Mexico, etc.)0.383W/kg (head)0.99W/kg (head) | 0.67W/kg (body)
SAR 2W/kg (Europe, UK, etc.)feature not registered0.57W/kg (head) | 0.9W/kg (body)
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