Xiaomi Redmi 4A (16GB) vs Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB)

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

7/14/2020 11:03 PM, updated: 7/6/2022 7:26 AM

Compare Samsung Galaxy A21s X Xiaomi Redmi 4A (16GB) 05Points

Specifications Compare Models Pictures

5"
IPS

720x1280

13
MP

5mp

2GB
RAM

Quad-core

3120
mAh

(Non removable)

21Points Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB) Compare Xiaomi Redmi 4A 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/DSN 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!

5 Advantages Xiaomi Redmi 4A (16GB)	vs	21 Advantages Samsung Galaxy A21s (SM-A217F/DSN 64GB/6GB)
+132 grams (4.62 ounces)45% Lighter	vs	192 grams (6.72 ounces)
+8.5 millimeters (0.33 inches)5% 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
1.4GHz 64bit Quad-core	vs	+2GHz 64bit Octa-core (8nm)71% More powerful processor, you can open your applications faster
2GB LPDDR3	vs	+6GB LPDDR4X2 times More RAM memory. Typically more responsive and better for multitasking.
16GB (10GB available)	vs	+64GB (48GB available)4 times More internal storage for applications and files
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
f/2.2 (aperture)	vs	+f/2.0 (aperture)10% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 5MP	vs	+(front) 13MP160% Higher resolution secondary camera to take pictures and selfies
(front) HD (1280x720)	vs	+(front) Full HD (1920x1080)125% More image quality for recording videos with the secondary camera
Android 6.0.1 Marshmallow	vs	+Android 12Advantage Android 12 is newer and safer
(4G LTE) 150 Mbps	vs	+(4G LTE-A) 300 Mbps100% Faster for surfing the internet and download files
Not supported	vs	+Face unlockAdvantage Sensors help you use the device
Not supported	vs	+Fingerprint sensor (rear-mounted)Advantage Sensors help you use the device
3120 mAh	vs	+5000 mAh60% 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
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely
MicroUSB 2.0	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.

19 Common items in both devices

16 million

LED flash

Only digital zoom

Autofocus / PDAF: phase detection autofocus

EIS: Digital stabilization

Full HD (1920x1080)

4G LTE / 4G LTE-A

+12 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 4A (16GB)	Galaxy A21s (SM-A217F/DSN 64GB/6GB)
Change model		Choose the model
Model	Redmi 4A (16GB)	Galaxy A21s (SM-A217F/DSN 64GB/6GB)
Other model names	Xiaomi Redmi 4a 2016111, Redmi 4a 2016117 Global	Galaxy A21s SM-A217F/Dual-Sim NFC (64GB + 6GB RAM)
Country or region available	(Global, International), Saudi Arabia, Brazil, China, United Arab Emirates, (Europe), India, Indonesia, Malaysia, Russia, Vietnam	Hong Kong
Brand	Xiaomi	Samsung
Release date	11/11/2016	6/2/2020, Announced: 5/15/2020
Depth	8.5 millimeters (0.33 inches)	8.9 millimeters (0.35 inches)
Size (width x height)	70.4 x 139.9 millimeters (2.77 x 5.51 in)	75.3 x 163.7 millimeters (2.96 x 6.44 in)
Weight	132 grams (4.62 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 4A (16GB)	Galaxy A21s (SM-A217F/DSN 64GB/6GB)
Display type	TFT IPS LCD	TFT PLS
Screen size	5" inches	6.5" inches
Screen-to-body ratio	~70% (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	Not supported	Not supported
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Not supported
🤖 Operating System
	Redmi 4A (16GB)	Galaxy A21s (SM-A217F/DSN 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 4A (16GB)	Galaxy A21s (SM-A217F/DSN 64GB/6GB)
Chipset	64bit: Qualcomm Snapdragon 425 MSM8917 (28nm)	64bit: Samsung Exynos 850 (8nm)
CPU	Quad-core, 1 processor: 4x 1.4GHz ARM Cortex-A53 (Quad-core)	Octa-core, 1 processor: 8x 2GHz ARM Cortex-A55 (Octa-core)
GPU graphical controller	Qualcomm Adreno 308 500Mhz	ARM Mali-G52 MP1
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Redmi 4A (16GB)	Galaxy A21s (SM-A217F/DSN 64GB/6GB)
RAM memory	2GB LPDDR3	6GB LPDDR4X
Internal storage	16GB (10GB 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 4A (16GB)	Galaxy A21s (SM-A217F/DSN 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	150/50 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 Asia model: TD-SCDMA 1900/2000 UMTS 850/900/1900/2100	UMTS 850/900/1900/2100
Primary 4G network	LTE Cat4 Global/Asia model: LTE 800/850/1700/1800/2100/2600 (Bands 1,3,4,5,7,20) TD-LTE 2300/2600 (Bands 38,40) India model: LTE 850/1800 (Bands 3,5) TD-LTE 2300 (Bands 40)	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, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE	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 4A (16GB)	Galaxy A21s (SM-A217F/DSN 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/2.2 (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	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 4A (16GB)	Galaxy A21s (SM-A217F/DSN 64GB/6GB)
Front camera (secondary)	5 megapixels	13 megapixels
Front camera resolution	2560x1920 pixels	4128x3096 pixels
Video recording (secondary)	HD (1280x720)	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 4A (16GB)	Galaxy A21s (SM-A217F/DSN 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 4A (16GB)	Galaxy A21s (SM-A217F/DSN 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) WiFi Direct, hotspot	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	Supported
Infrared port	Supported	Not supported
🧭 Sensors
	Redmi 4A (16GB)	Galaxy A21s (SM-A217F/DSN 64GB/6GB)
Sensors	Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor	Accelerometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor Virtual ambient light sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Redmi 4A (16GB)	Galaxy A21s (SM-A217F/DSN 64GB/6GB)
Battery type	Li-Ion: lithium-ion (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3120 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 4A (16GB)	Galaxy A21s (SM-A217F/DSN 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: Gold, Rose Gold, Dark Gray • MIUI 8 • VoLTE	• Colors: Black, White, Blue, Red
☢️ Radiation rate
	Redmi 4A (16GB)	Galaxy A21s (SM-A217F/DSN 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)