Xiaomi Redmi 4X (64GB) vs Samsung Galaxy A21s (SM-A217F/DS 64GB/6GB)

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Side by side comparison between Xiaomi Redmi 4X vs Samsung Galaxy A21s phones, differences, pros, cons and full specifications. What's the better?

7/14/2020 11:00 PM, updated: 7/6/2022 7:26 AM

Compare Samsung Galaxy A21s X Xiaomi Redmi 4X (64GB) 07Points

Specifications Compare Models Pictures

5"
IPS

720x1280

13
MP

5mp

4GB
RAM

Octa-core

4100
mAh

(Non removable)

15Points Samsung Galaxy A21s (SM-A217F/DS 64GB/6GB) Compare Xiaomi Redmi 4X X

Specifications Compare Models Pictures

6.5"
PLS

720x1600

48
MP

13mp

6GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A21s (SM-A217F/DS 64GB/6GB)

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!

7 Advantages Xiaomi Redmi 4X (64GB)	vs	15 Advantages Samsung Galaxy A21s (SM-A217F/DS 64GB/6GB)
+64GB (54GB available)13% More internal storage for applications and files	vs	64GB (48GB available)
+150 grams (5.25 ounces)28% Lighter	vs	192 grams (6.72 ounces)
+8.7 millimeters (0.34 inches)2% Thinner	vs	8.9 millimeters (0.35 inches)
+TFT IPS LCDAdvantage TFT IPS LCD display is brighter and more vivid	vs	TFT PLS
+294 PPI9% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	270 PPI
+Ambient light sensorAdvantage Sensors help you use the device	vs	Virtual ambient light sensor
+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
1.4GHz 64bit Octa-core	vs	+2GHz 64bit Octa-core (8nm)55% More powerful processor, you can open your applications faster
4GB LPDDR3	vs	+6GB LPDDR4X50% More RAM memory. Typically more responsive and better for multitasking.
Until 256GB microSD, microSDXC	vs	+Until 512GB microSD, microSDXC100% More external storage for files using memory cards
720x1280 pixels	vs	+720x1600 pixels25% Higher resolution screen
5"	vs	+6.5"30% Larger screen
(back) 13MP	vs	+(quad camera) 48MP + 8MP + 2MP + 2MP4 times Higher resolution main camera
HDR photo only main camera	vs	+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas
(front) 5MP	vs	+(front) 13MP160% Higher resolution secondary camera to take pictures and selfies
Android 6.0.1 Marshmallow	vs	+Android 12Advantage Android 12 is newer and safer
Not supported	vs	+Face unlockAdvantage Sensors help you use the device
4100 mAh	vs	+5000 mAh22% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)	vs	+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.
802.11 b/g/n [wifi4]	vs	+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
4.1 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
MicroUSB 2.0	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.

23 Common items in both devices

16 million

LED flash

Only digital zoom

PDAF: phase detection autofocus

EIS: Digital stabilization

f/2.0 (aperture)

Full HD (1920x1080)

+16 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
	Redmi 4X (64GB)	Galaxy A21s (SM-A217F/DS 64GB/6GB)
Change model		Choose the model
Model	Redmi 4X (64GB)	Galaxy A21s (SM-A217F/DS 64GB/6GB)
Other model names	Xiaomi Hongmi 4X 4GB RAM 64GB, MAE136, MAT136	Galaxy A21s SM-A217F/Dual-Sim (64GB + 6GB RAM)
Country or region available	China, India, Malaysia, Pakistan	Philippines, India, Indonesia, Malaysia, Myanmar, Thailand, Vietnam
Brand	Xiaomi	Samsung
Release date	5/1/2017	6/2/2020, Announced: 5/15/2020
Depth	8.7 millimeters (0.34 inches)	8.9 millimeters (0.35 inches)
Size (width x height)	70 x 139.2 millimeters (2.76 x 5.48 in)	75.3 x 163.7 millimeters (2.96 x 6.44 in)
Weight	150 grams (5.25 ounces)	192 grams (6.72 ounces)
Build, materials	feature not registered	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Redmi 4X (64GB)	Galaxy A21s (SM-A217F/DS 64GB/6GB)
Display type	TFT IPS LCD	TFT PLS
Screen size	5" inches	6.5" inches
Screen-to-body ratio	~70.7% (screen-to-body ratio)	~82.8% (screen-to-body ratio)
Display resolution	720x1280 pixels	720x1600 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	294 PPI	270 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Not supported
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Not supported
🤖 Operating System
	Redmi 4X (64GB)	Galaxy A21s (SM-A217F/DS 64GB/6GB)
System version	Android 6.0.1 Marshmallow	Android 10
Firmware update	feature not registered	Android 12
User Interface	feature not registered	One UI 2.0 / 3.1 / 4.1
⚙️ Processor
	Redmi 4X (64GB)	Galaxy A21s (SM-A217F/DS 64GB/6GB)
Chipset	64bit: Qualcomm Snapdragon 435 MSM8940 (28nm)	64bit: Samsung Exynos 850 (8nm)
CPU	Octa-core, 2 processors: 4x 1.4GHz ARM Cortex-A53 (Quad-core) 4x 1.1GHz ARM Cortex-A53 (Quad-core)	Octa-core, 1 processor: 8x 2GHz ARM Cortex-A55 (Octa-core)
GPU graphical controller	Qualcomm Adreno 505	ARM Mali-G52 MP1
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Redmi 4X (64GB)	Galaxy A21s (SM-A217F/DS 64GB/6GB)
RAM memory	4GB LPDDR3	6GB LPDDR4X
Internal storage	64GB (54GB available)	64GB (48GB available) eMMC 5.1
External storage	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Until 512GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Redmi 4X (64GB)	Galaxy A21s (SM-A217F/DS 64GB/6GB)
Dual-SIM	Dual-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 card	2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	300/50 Mbps	300/150 Mbps
Network technology	2G, 3G, 4G	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	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	UMTS 850/900/1900/2100
Primary 4G network	LTE Cat6 850/900/1800/2100/2600 (Bands 1,3,5,7,8) TD-LTE 1900/2300/2500/2600 (Bands 38,39,40,41)	LTE Cat7/13 (1, 2, 3, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, 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	Not supported	UMTS 850/900/1900/2100
Secondary 4G network	Not supported	LTE Cat7/13 (1, 2, 3, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41)
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
📷 Camera
	Redmi 4X (64GB)	Galaxy A21s (SM-A217F/DS 64GB/6GB)
Back camera (main camera)	13 megapixels	(quad camera) 48 megapixels 8MP ultrawide f/2.21/4"1.12µm123° 2MP macro f/2.4 2MP depth f/2.4
Main camera resolution	4128x3096 pixels	8000x6000 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	Full HD (1920x1080) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	26mm lens
Sensor size	feature not registered	1/2" inches
Pixel size	feature not registered	0.8µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo only main camera	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Redmi 4X (64GB)	Galaxy A21s (SM-A217F/DS 64GB/6GB)
Front camera (secondary)	5 megapixels	13 megapixels
Front camera resolution	2560x1920 pixels	4128x3096 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	1/3.1" inches
Pixel size	feature not registered	1.12µm pixel
🔉 Sound and multimedia
	Redmi 4X (64GB)	Galaxy A21s (SM-A217F/DS 64GB/6GB)
Loudspeaker	Supported	Mono sound (not stereo)
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	FM
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Redmi 4X (64GB)	Galaxy A21s (SM-A217F/DS 64GB/6GB)
USB	MicroUSB 2.0	USB 2.0 Type-C reversible connector
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	4.1 + A2DP	5.0 + A2DP/LE
WiFi	802.11 b/g/n [wifi4] (2.4GHz)	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Not supported	Not supported
Infrared port	Supported	Not supported
🧭 Sensors
	Redmi 4X (64GB)	Galaxy A21s (SM-A217F/DS 64GB/6GB)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Proximity sensor	Accelerometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor Virtual ambient light sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Redmi 4X (64GB)	Galaxy A21s (SM-A217F/DS 64GB/6GB)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	4100 mAh	5000 mAh
Charger, watts	Wired charging	15W (9V/1.67A) Wired fast charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Redmi 4X (64GB)	Galaxy A21s (SM-A217F/DS 64GB/6GB)
Call control	Voice dialing, Voice recorder	Voice dialing, Voice recorder, Voice commands
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: Black, Gold • MIUI 8 • 450nit screen • VoLTE • WiFi display, direct, hotspot	• Colors: Black, White, Blue, Red
☢️ Radiation rate
	Redmi 4X (64GB)	Galaxy A21s (SM-A217F/DS 64GB/6GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.422W/kg (head), 1.544W/kg (body)