Samsung W21 5G vs Xiaomi Redmi 4X (32GB)

Share page: Facebook Twitter WhatsApp Share page:

Side by side comparison between Samsung W21 5G vs Xiaomi Redmi 4X phones, differences, pros, cons and full specifications. What's the better?

5/14/2021 6:50 AM, updated: 1/19/2023 3:12 PM

Compare Xiaomi Redmi 4X X Samsung W21 5G 30Points

Specifications Compare Models Pictures

7.6"
AMOLED

1768x2208

12.2
MP

10mp

12GB
RAM

Octa-core

4500
mAh

(Non removable)

04Points Xiaomi Redmi 4X (32GB) Compare Samsung W21 5G X

Specifications Compare Models Pictures

5"
IPS

720x1280

13
MP

5mp

3GB
RAM

Octa-core

4100
mAh

(Non removable)

What's the better phone? Samsung W21 5G

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!

30 Advantages Samsung W21 5G	vs	4 Advantages Xiaomi Redmi 4X (32GB)
+3.09GHz 64bit Octa-core (7nm)106% More powerful processor, you can open your applications faster	vs	1.4GHz 64bit Octa-core
+12GB LPDDR53 times More RAM memory. Typically more responsive and better for multitasking.	vs	3GB LPDDR3
+512GB (455GB available)20 times More internal storage for applications and files	vs	32GB (22GB available)
+6.9 millimeters (0.27 inches)26% Thinner	vs	8.7 millimeters (0.34 inches)
+Flexible Super AMOLEDAdvantage Flexible Super AMOLED display is brighter and more vivid	vs	TFT IPS LCD
+1768x2208 pixels3 times Higher resolution screen	vs	720x1280 pixels
+372 PPI27% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	294 PPI
+7.6"52% Larger screen	vs	5"
+(triple camera) 12.2MP + 12MP + 12MP183% Higher resolution main camera	vs	(back) 13MP
+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures	vs	Only digital zoom
+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness	vs	Not supported
+HDR photo/video on both camerasAdvantage The HDR technology produced photos with more detail in dark areas	vs	HDR photo only main camera
+f/1.8 (aperture)11% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/2.0 (aperture)
+(front) 10MP104% Higher resolution secondary camera to take pictures and selfies	vs	(front) 5MP
+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera	vs	Full HD (1920x1080)
+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera	vs	(front) Full HD (1920x1080)
+Android 13Advantage Android 13 is newer and safer	vs	Android 6.0.1 Marshmallow
+5G SA/NSAAdvantage The 5G SA/NSA network is newer and faster	vs	4G LTE-A
+(5G SA/NSA) 2000 Mbps6 times Faster for surfing the internet and download files	vs	(4G LTE-A) 300 Mbps
+ANT+Advantage Sensors help you use the device	vs	Not supported
+BarometerAdvantage Sensors help you use the device	vs	Not supported
+Face unlock 2DAdvantage Sensors help you use the device	vs	Not supported
+4500 mAh10% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	4100 mAh
+802.11 a/b/g/n/ac/ax [wifi6]Advantage WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster	vs	802.11 b/g/n [wifi4]
+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.	vs	Not supported
+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster	vs	4.1 + A2DP
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
+USB 3.2 Type-C, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.	vs	MicroUSB 2.0
+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.	vs	MicroUSB 2.0
Not supported	vs	+Until 256GB microSD, microSDXCAdvantage More external storage for files using memory cards
282 grams (9.87 ounces)	vs	+150 grams (5.25 ounces)88% Lighter
Type-C reversible connector	vs	+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores
Not supported	vs	+FMAdvantage The radio lets you listen to your songs and sports in general

20 Common items in both devices

16 million

LED flash

PDAF: phase detection autofocus

Capacitive

Multitouch

Accelerometer

Ambient light sensor

+13 specs and more in the table below

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

Highlight differences

📱 Model features
	Samsung W21 5G	Redmi 4X (32GB)
Change model		Choose the model
Model	W21 5G	Redmi 4X (32GB)
Other model names	三星W21 5G SM-W2021 (China Telecom edition)	Xiaomi Hongmi 4X 3GB RAM 32GB, MAE136, MAT136
Country or region available	China	(Global, International), China, India, Malaysia, Pakistan
Brand	Samsung	Xiaomi
Release date	11/1/2020	5/1/2017
Depth	6.9 millimeters (0.27 inches)	8.7 millimeters (0.34 inches)
Size (width x height)	128.2 x 159.2 millimeters (5.05 x 6.27 in)	70 x 139.2 millimeters (2.76 x 5.48 in)
Weight	282 grams (9.87 ounces)	150 grams (5.25 ounces)
Build, materials	Aluminum frame, flexible plastic screen, glass back	feature not registered
Protection against water and others	Not supported	Not supported
📲 Display
	Samsung W21 5G	Redmi 4X (32GB)
Display type	Flexible Super AMOLED	TFT IPS LCD
Screen size	7.6" inches	5" inches
Screen-to-body ratio	~89.1% (screen-to-body ratio)	~70.7% (screen-to-body ratio)
Display resolution	1768x2208 pixels	720x1280 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	372 PPI	294 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass Victus	Gorilla Glass 3
Refresh rate	120Hz	feature not registered
Display features	HDR10+ Extra display: Super AMOLED 6.23" (816x2260) Gorilla Glass Victus	feature not registered
🤖 Operating System
	Samsung W21 5G	Redmi 4X (32GB)
System version	Android 10	Android 6.0.1 Marshmallow
Firmware update	Android 13	feature not registered
User Interface	One UI 3.1 / 4.1 / 5.0	feature not registered
⚙️ Processor
	Samsung W21 5G	Redmi 4X (32GB)
Chipset	64bit: Qualcomm Snapdragon 865+ (SM8250-AB) (7nm)	64bit: Qualcomm Snapdragon 435 MSM8940 (28nm)
CPU	Octa-core, 3 processors: 1x 3.09GHz Kryo 585 (Single-core) 3x 2.42GHz Kryo 585 (Triple-core) 4x 1.8GHz Kryo 585 (Quad-core)	Octa-core, 2 processors: 4x 1.4GHz ARM Cortex-A53 (Quad-core) 4x 1.1GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	Qualcomm Adreno 650 (250-646MHz)	Qualcomm Adreno 505
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Samsung W21 5G	Redmi 4X (32GB)
RAM memory	12GB LPDDR5	3GB LPDDR3
Internal storage	512GB (455GB available) UFS 3.1	32GB (22GB available)
External storage	Not supported	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Samsung W21 5G	Redmi 4X (32GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF)
Maximum Download / Upload	2000/1024 Mbps	300/50 Mbps
Network technology	2G, 3G, 4G, 5G	2G, 3G, 4G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1900/2100	Global model: UMTS 850/900/1900/2100 India model: UMTS 900/2100 China model: CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100
Primary 4G network	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE	LTE Cat6 850/900/1800/2100/2600 (Bands 1,3,5,7,8) TD-LTE 1900/2300/2500/2600 (Bands 38,39,40,41)
Primary 5G network	Sub6 (1, 28, 41, 78, 79)	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	UMTS 850/900/1900/2100	Not supported
Secondary 4G network	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA	GPRS, EDGE
📷 Camera
	Samsung W21 5G	Redmi 4X (32GB)
Back camera (main camera)	(triple camera) 12.2 megapixels 12MP telephoto f/2.452mm1/3.6"1.0µmPDAFOIS2x-optical-zoom 12MP ultrawide f/2.2123°12mm1.12µm	13 megapixels
Main camera resolution	4032x3024 pixels	4128x3096 pixels
Video recording (primary)	4K UHD (3840x2160) 60 fps	Full HD (1920x1080) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/1.8 (aperture)	f/2.0 (aperture)
Focal length	26mm (lens)	feature not registered
Sensor size	1/1.76" inches	feature not registered
Pixel size	1.8µm pixel	feature not registered
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	EIS: Digital stabilization
Zoom	Digital and optical zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Supported	Not supported
HDR	HDR photo/video on both cameras	HDR photo only main camera
Camera extras	Cover camera: 10MP (f/2.2) 4K@30/60fps 1080p@60fps 1080p@240fps (slow motion) 720p@960fps (slow motion)	feature not registered
📸 Front camera
	Samsung W21 5G	Redmi 4X (32GB)
Front camera (secondary)	10 megapixels	5 megapixels
Front camera resolution	3872x2592 pixels	2560x1920 pixels
Video recording (secondary)	4K UHD (3840x2160)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	f/2.2 (aperture)
Focal length	26mm (lens)	feature not registered
Sensor size	1/3" inches	feature not registered
Pixel size	1.22µm pixel	feature not registered
🔉 Sound and multimedia
	Samsung W21 5G	Redmi 4X (32GB)
Loudspeaker	Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	Not supported	FM
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, eAAC+, FLAC
🔌 Connectivity
	Samsung W21 5G	Redmi 4X (32GB)
USB	USB 3.2 Type-C, USB OTG On-The-Go	MicroUSB 2.0
Audio output	Type-C reversible connector	3.5mm jack
TV output	USB Type-C (reversible)	Not supported
Bluetooth	5.0 + A2DP/LE	4.1 + A2DP
WiFi	802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 b/g/n [wifi4] (2.4GHz)
DLNA	Supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Supported	Not supported
Infrared port	Not supported	Supported
🧭 Sensors
	Samsung W21 5G	Redmi 4X (32GB)
Sensors	Accelerometer Ambient light sensor ANT+ Barometer Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Samsung W21 5G	Redmi 4X (32GB)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	4500 mAh	4100 mAh
Charger, watts	25W Wired fast charging Reverse charging by cable USB Power Delivery 3.0	Wired charging
Inductive / wireless charging	11W Qi Wireless charging (Qi/WPC) 4.5W Reverse wireless charging	feature not registered
Talk time autonomy	31 hours (1.3 days)	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Samsung W21 5G	Redmi 4X (32GB)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Gold • Bixby • Samsung Wireless DeX • Samsung Pay (MST, NFC)	• Colors: Black, Gold • MIUI 8 • 450nit screen • VoLTE • WiFi display, direct, hotspot
☢️ Radiation rate
	Samsung W21 5G	Redmi 4X (32GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	0.859W/kg (head), 1.453W/kg (body)	feature not registered