Xiaomi Redmi 8 (32GB) vs Samsung Galaxy A21s (SM-A217M/DS)

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Side by side comparison between Xiaomi Redmi 8 vs Samsung Galaxy A21s phones, differences, pros, cons and full specifications. What's the better?

7/14/2020 10:01 AM, updated: 7/6/2022 7:26 AM

Compare Samsung Galaxy A21s X Xiaomi Redmi 8 (32GB) 07Points

Specifications Compare Models Pictures

6.22"
IPS

720x1520

12
MP

8mp

3GB
RAM

Octa-core

5000
mAh

(Non removable)

14Points Samsung Galaxy A21s (SM-A217M/DS) Compare Xiaomi Redmi 8 X

Specifications Compare Models Pictures

6.5"
PLS

720x1600

48
MP

13mp

4GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A21s (SM-A217M/DS)

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 8 (32GB)	vs	14 Advantages Samsung Galaxy A21s (SM-A217M/DS)
+188 grams (6.58 ounces)2% Lighter	vs	192 grams (6.72 ounces)
+TFT IPS LCDAdvantage TFT IPS LCD display is brighter and more vivid	vs	TFT PLS
+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)
+Ambient light sensorAdvantage Sensors help you use the device	vs	Virtual ambient light sensor
+18W20% 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.	vs	15W
+Gorilla Glass 5Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
+P2i certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example	vs	Not supported
2GHz 64bit Octa-core	vs	+2GHz 64bit Octa-core (8nm)12% More powerful processor, you can open your applications faster
3GB LPDDR3	vs	+4GB LPDDR4X33% More RAM memory. Typically more responsive and better for multitasking.
32GB (21GB available)	vs	+64GB (48GB available)129% More internal storage for applications and files
9.4 millimeters (0.37 inches)	vs	+8.9 millimeters (0.35 inches)6% Thinner
720x1520 pixels	vs	+720x1600 pixels5% Higher resolution screen
6.22"	vs	+6.5"5% Larger screen
(dual camera) 12MP + 2MP	vs	+(quad camera) 48MP + 8MP + 2MP + 2MP3 times Higher resolution main camera
1/2.55" inches	vs	+1/2" inches28% The larger sensor camera lets you take photos with better depth.
(front) 8MP	vs	+(front) 13MP60% Higher resolution secondary camera to take pictures and selfies
Android 9.0 Pie	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	+GyroscopeAdvantage Sensors help you use the 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
4.2 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster

28 Common items in both devices

eMMC 5.1

Until 512GB microSD, microSDXC

Plastic body, glass front

16 million

270 PPI

LED flash

Only digital zoom

+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 differences

📱 Model features
	Redmi 8 (32GB)	Galaxy A21s (SM-A217M/DS)
Change model		Choose the model
Model	Redmi 8 (32GB)	Galaxy A21s (SM-A217M/DS)
Other model names	Xiaomi Redmi 8 (3GB RAM + 32GB) M1908C3IC, MZB8255IN	Galaxy A21s SM-A217M/Dual-Sim (64GB + 4GB RAM)
Country or region available	(Global, International)	(Latin America), Brazil, Chile, Colombia
Brand	Xiaomi	Samsung
Release date	10/1/2019	6/2/2020, Announced: 5/15/2020
Depth	9.4 millimeters (0.37 inches)	8.9 millimeters (0.35 inches)
Size (width x height)	75.4 x 156.5 millimeters (2.97 x 6.16 in)	75.3 x 163.7 millimeters (2.96 x 6.44 in)
Weight	188 grams (6.58 ounces)	192 grams (6.72 ounces)
Build, materials	Plastic body, glass front	Plastic body, glass front
Protection against water and others	P2i certified: water repellent nano-coating	Not supported
📲 Display
	Redmi 8 (32GB)	Galaxy A21s (SM-A217M/DS)
Display type	TFT IPS LCD	TFT PLS
Screen size	6.22" inches	6.5" inches
Screen-to-body ratio	~81.8% (screen-to-body ratio)	~82.8% (screen-to-body ratio)
Display resolution	720x1520 pixels	720x1600 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	270 PPI	270 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Not supported
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Not supported
🤖 Operating System
	Redmi 8 (32GB)	Galaxy A21s (SM-A217M/DS)
System version	Android 9.0 Pie	Android 10
Firmware update	feature not registered	Android 12
User Interface	feature not registered	One UI 2.0 / 3.1 / 4.1
⚙️ Processor
	Redmi 8 (32GB)	Galaxy A21s (SM-A217M/DS)
Chipset	64bit: Qualcomm Snapdragon 439 SDM439 (12nm)	64bit: Samsung Exynos 850 (8nm)
CPU	Octa-core, 2 processors: 2x 2GHz ARM Cortex-A53 (Dual-core) 6x 1.45GHz ARM Cortex-A53 (Hexa-core)	Octa-core, 1 processor: 8x 2GHz ARM Cortex-A55 (Octa-core)
GPU graphical controller	Qualcomm Adreno 505 650Mhz	ARM Mali-G52 MP1
Performance (benchmark)	feature not registered	AnTuTu: 124232 (v8)
💽 Memory and storage
	Redmi 8 (32GB)	Galaxy A21s (SM-A217M/DS)
RAM memory	3GB LPDDR3	4GB LPDDR4X
Internal storage	32GB (21GB available) eMMC 5.1	64GB (48GB available) eMMC 5.1
External storage	Until 512GB microSD, microSDXC (dedicated slot)	Until 512GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Redmi 8 (32GB)	Galaxy A21s (SM-A217M/DS)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	Dual-SIM Standby - Call active on one sim card (dedicated slot)
SIM card	2 slots (Dual-SIM) 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	M1908C3IC version: UMTS 850/900/1700/1900/2100 MZB8255IN version: UMTS 850/900/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat4 VoLTE M1908C3IC version: LTE (Bands 1, 2, 3, 4, 5, 7, 8, 20) TD-LTE (Bands 38, 40) MZB8255IN version: LTE (Bands 1, 3, 5, 8) TD-LTE (Bands 40, 41)	LTE Cat7/13 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 66) TD-LTE (38, 40, 41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, 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 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat7/13 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 66) TD-LTE (38, 40, 41)
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
📷 Camera
	Redmi 8 (32GB)	Galaxy A21s (SM-A217M/DS)
Back camera (main camera)	(dual camera) 12 megapixels 2MP depth	(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	4000x3000 pixels	8000x6000 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	Full HD (1920x1080) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/1.8 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	26mm lens
Sensor size	1/2.55" inches	1/2" inches
Pixel size	1.4µm pixel	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 on both cameras	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Redmi 8 (32GB)	Galaxy A21s (SM-A217M/DS)
Front camera (secondary)	8 megapixels	13 megapixels
Front camera resolution	3264x2448 pixels	4128x3096 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	1/3.1" inches
Pixel size	1.12µm pixel	1.12µm pixel
🔉 Sound and multimedia
	Redmi 8 (32GB)	Galaxy A21s (SM-A217M/DS)
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.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Redmi 8 (32GB)	Galaxy A21s (SM-A217M/DS)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 2.0 Type-C reversible connector
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	4.2 + 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, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Not supported	Not supported
Infrared port	Supported	Not supported
🧭 Sensors
	Redmi 8 (32GB)	Galaxy A21s (SM-A217M/DS)
Sensors	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Proximity sensor	Accelerometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor Virtual ambient light sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Redmi 8 (32GB)	Galaxy A21s (SM-A217M/DS)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	5000 mAh	5000 mAh
Charger, watts	18W Wired fast charging	15W (9V/1.67A) Wired fast charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	28 hours (1.2 days)	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Redmi 8 (32GB)	Galaxy A21s (SM-A217M/DS)
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: Onyx Black, Ruby Red, Sapphire Blue, Green • MIUI 9	• Colors: Black, White, Blue, Red
☢️ Radiation rate
	Redmi 8 (32GB)	Galaxy A21s (SM-A217M/DS)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.54W/kg (head), 1.14W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered