Asus Zenfone 3 (5.5 ZE552KL 64GB) vs Samsung Galaxy A21s (SM-A217F)

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Side by side comparison between Asus Zenfone 3 vs Samsung Galaxy A21s phones, differences, pros, cons and full specifications. What's the better?

7/15/2020 12:38 AM, updated: 3/13/2023 9:26 AM

Compare Samsung Galaxy A21s X Asus Zenfone 3 (5.5 ZE552KL 64GB) 15Points

Specifications Compare Models Pictures

5.5"
IPS+

1080x1920

16
MP

8mp

4GB
RAM

Octa-core

3000
mAh

(Non removable)

09Points Samsung Galaxy A21s (SM-A217F) Compare Asus Zenfone 3 X

Specifications Compare Models Pictures

6.5"
PLS

720x1600

48
MP

13mp

3GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Asus Zenfone 3 (5.5 ZE552KL 64GB)

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!

15 Advantages Asus Zenfone 3 (5.5 ZE552KL 64GB)	vs	9 Advantages Samsung Galaxy A21s (SM-A217F)
+2GHz 64bit Octa-core (14nm)3% More powerful processor, you can open your applications faster	vs	2GHz 64bit Octa-core (8nm)
+4GB LPDDR333% More RAM memory. Typically more responsive and better for multitasking.	vs	3GB LPDDR4X
+64GB (55GB available)189% More internal storage for applications and files	vs	32GB (19GB available)
+155 grams (5.43 ounces)24% Lighter	vs	192 grams (6.72 ounces)
+7.7 millimeters (0.3 inches)16% Thinner	vs	8.9 millimeters (0.35 inches)
+Aluminum body, glass front, plastic backAdvantage More resistant material	vs	Plastic body, glass front
+TFT Super IPS+Advantage TFT Super IPS+ display is brighter and more vivid	vs	TFT PLS
+1080x1920 pixels80% Higher resolution screen	vs	720x1600 pixels
+401 PPI49% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	270 PPI
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+OIS (4-axis): Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera	vs	Full HD (1920x1080)
+Ambient light sensorAdvantage Sensors help you use the device	vs	Virtual ambient light sensor
+2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)Advantage You can have more mobile carriers/operators on the same device.	vs	1 slot (Single-SIM) (dedicated slot)
+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
Until 256GB microSD, microSDXC	vs	+Until 512GB microSD, microSDXC100% More external storage for files using memory cards
5.5"	vs	+6.5"18% Larger screen
(back) 16MP	vs	+(quad camera) 48MP + 8MP + 2MP + 2MP3 times Higher resolution main camera
(front) 8MP	vs	+(front) 13MP60% Higher resolution secondary camera to take pictures and selfies
Android 8.0 Oreo	vs	+Android 12Advantage Android 12 is newer and safer
Not supported	vs	+Face unlockAdvantage Sensors help you use the device
3000 mAh	vs	+5000 mAh67% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
10W	vs	+15W50% 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.
4.2 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster

25 Common items in both devices

eMMC 5.1

60Hz

16 million

Only digital zoom

LDAF/PDAF: laser/phase detection autofocus / PDAF: phase detection autofocus

HDR photo on both cameras

f/2.0 (aperture)

+18 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
	Asus Zenfone 3 (5.5 ZE552KL 64GB)	Galaxy A21s (SM-A217F)
Change model		Choose the model
Model	Zenfone 3 (5.5 ZE552KL 64GB)	Galaxy A21s (SM-A217F)
Other model names	Zenfone 3 ZE552KL 4GB/64GB 5.5" Dual-SIM, Asus Libra	Galaxy A21s SM-A217F Single-Sim (32GB + 3GB RAM)
Country or region available	(Europe), (Global, International), Brazil, Canada, China, USA, Hong Kong, India, Indonesia, Japan, Taiwan	South Africa, Australia, New Zealand
Brand	Asus	Samsung
Release date	7/12/2016	6/2/2020, Announced: 5/15/2020
Depth	7.7 millimeters (0.3 inches)	8.9 millimeters (0.35 inches)
Size (width x height)	77.38 x 152.59 millimeters (3.05 x 6.01 in)	75.3 x 163.7 millimeters (2.96 x 6.44 in)
Weight	155 grams (5.43 ounces)	192 grams (6.72 ounces)
Build, materials	Aluminum body, glass front, plastic back	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Asus Zenfone 3 (5.5 ZE552KL 64GB)	Galaxy A21s (SM-A217F)
Display type	TFT Super IPS+	TFT PLS
Screen size	5.5" inches	6.5" inches
Screen-to-body ratio	~70.6% (screen-to-body ratio)	~82.8% (screen-to-body ratio)
Display resolution	1080x1920 pixels (16:9)	720x1600 pixels (20:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	401 PPI	270 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Not supported
Refresh rate	60Hz	60Hz
Display features	2.5D glass	Not supported
🤖 Operating System
	Asus Zenfone 3 (5.5 ZE552KL 64GB)	Galaxy A21s (SM-A217F)
System version	Android 6.0.1 Marshmallow	Android 10
Firmware update	Android 8.0 Oreo	Android 12
User Interface	ZenUI 3.0	One UI 2.0 / 3.1 / 4.1
⚙️ Processor
	Asus Zenfone 3 (5.5 ZE552KL 64GB)	Galaxy A21s (SM-A217F)
Chipset	64bit: Qualcomm Snapdragon 625 (MSM8953) (14nm)	64bit: Samsung Exynos 850 (8nm)
CPU	Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core)	Octa-core, 1 processor: 8x 2GHz ARM Cortex-A55 (Octa-core)
GPU graphical controller	Qualcomm Adreno 506 (650MHz)	ARM Mali-G52 MP1
Performance (benchmark)	feature not registered	AnTuTu: 107157 (v8) Geekbench: 1100 (v5.1) GFXBench: 11fps (ES 3.1 onscreen)
💽 Memory and storage
	Asus Zenfone 3 (5.5 ZE552KL 64GB)	Galaxy A21s (SM-A217F)
RAM memory	4GB LPDDR3	3GB LPDDR4X
Internal storage	64GB (55GB available) eMMC 5.1	32GB (19GB 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
	Asus Zenfone 3 (5.5 ZE552KL 64GB)	Galaxy A21s (SM-A217F)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)	Not supported
SIM card	2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF)	1 slot (Single-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: UMTS 850/900/1900/2100 Taiwan: UMTS 800/850/900/1900/2100 India: UMTS 850/900/2100	UMTS 850/900/1900/2100
Primary 4G network	LTE Cat6 Global: LTE (1, 2, 3, 5, 7, 8, 20) Taiwan: LTE (1, 2, 3, 5, 7, 8, 18, 19, 26, 28) TD-LTE (38, 39, 40, 41) India: LTE (1, 3, 5, 8) TD-LTE (40) Brazil/USA: LTE (1, 2, 3, 4, 5, 7, 8, 17, 28)	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, 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	Not supported
Secondary 3G network	Global: UMTS 850/900/1900/2100 Taiwan: UMTS 800/850/900/1900/2100 India: UMTS 850/900/2100	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+	Not supported
📷 Camera
	Asus Zenfone 3 (5.5 ZE552KL 64GB)	Galaxy A21s (SM-A217F)
Back camera (main camera)	16 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	4608x3456 pixels	8000x6000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	Full HD (1920x1080) 30 fps
Flash	Dual-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	LDAF/PDAF: laser/phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS (4-axis): Optical 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	4K@30fps 1080p@30/60fps	feature not registered
📸 Front camera
	Asus Zenfone 3 (5.5 ZE552KL 64GB)	Galaxy A21s (SM-A217F)
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	feature not registered	1.12µm pixel
🔉 Sound and multimedia
	Asus Zenfone 3 (5.5 ZE552KL 64GB)	Galaxy A21s (SM-A217F)
Loudspeaker	Mono sound (not stereo) 24-bit/192kHz	Mono sound (not stereo)
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM (RDS)	FM
TV	Not supported	Not supported
Video formats	MP4, 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
	Asus Zenfone 3 (5.5 ZE552KL 64GB)	Galaxy A21s (SM-A217F)
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	USB Type-C (reversible)	Not supported
Bluetooth	4.2 + A2DP	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) 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	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Asus Zenfone 3 (5.5 ZE552KL 64GB)	Galaxy A21s (SM-A217F)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor	Accelerometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor Virtual ambient light sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Asus Zenfone 3 (5.5 ZE552KL 64GB)	Galaxy A21s (SM-A217F)
Battery type	Li-Ion: lithium-ion (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3000 mAh	5000 mAh
Charger, watts	10W (5V/2A) Wired charging	15W (9V/1.67A) Wired fast charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Asus Zenfone 3 (5.5 ZE552KL 64GB)	Galaxy A21s (SM-A217F)
Call control	Voice dialing, Voice recorder, Voice commands	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: Sapphire Black, Moonlight White, Shimmer Gold	• Colors: Black, White, Blue, Red
☢️ Radiation rate
	Asus Zenfone 3 (5.5 ZE552KL 64GB)	Galaxy A21s (SM-A217F)
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)