Samsung Galaxy A21s (SM-A217F) vs Asus Zenfone 5Z (ZS621KL 64GB)

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Side by side comparison between Samsung Galaxy A21s vs Asus Zenfone 5Z phones, differences, pros, cons and full specifications. What's the better?

7/15/2020 12:38 AM, updated: 7/6/2022 7:26 AM

Compare Asus Zenfone 5Z X Samsung Galaxy A21s (SM-A217F) 06Points

Specifications Compare Models Pictures

6.5"
PLS

720x1600

48
MP

13mp

3GB
RAM

Octa-core

5000
mAh

(Non removable)

20Points Asus Zenfone 5Z (ZS621KL 64GB) Compare Samsung Galaxy A21s X

Specifications Compare Models Pictures

6.2"
IPS

1080x2246

12
MP

8mp

6GB
RAM

Octa-core

3300
mAh

(Non removable)

What's the better phone? Asus Zenfone 5Z (ZS621KL 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!

6 Advantages Samsung Galaxy A21s (SM-A217F)	vs	20 Advantages Asus Zenfone 5Z (ZS621KL 64GB)
+6.5"5% Larger screen	vs	6.2"
+(quad camera) 48MP + 8MP + 2MP + 2MP2 times Higher resolution main camera	vs	(dual camera) 12MP + 8MP
+1/2" inches28% The larger sensor camera lets you take photos with better depth.	vs	1/2.55" inches
+(front) 13MP60% Higher resolution secondary camera to take pictures and selfies	vs	(front) 8MP
+Android 12Advantage Android 12 is newer and safer	vs	Android 10
+5000 mAh52% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	3300 mAh
2GHz 64bit Octa-core (8nm)	vs	+2.7GHz 64bit Octa-core14% More powerful processor, you can open your applications faster
3GB LPDDR4X	vs	+6GB LPDDR4X100% More RAM memory. Typically more responsive and better for multitasking.
32GB (19GB available)	vs	+64GB (51GB available)168% More internal storage for applications and files
eMMC 5.1	vs	+UFS 2.1Advantage Fastest write and read storage.
192 grams (6.72 ounces)	vs	+165 grams (5.78 ounces)16% Lighter
8.9 millimeters (0.35 inches)	vs	+7.9 millimeters (0.31 inches)13% Thinner
Plastic body, glass front	vs	+Aluminum frame, glass front/backAdvantage More resistant material
TFT PLS	vs	+TFT IPS LCDAdvantage TFT IPS LCD display is brighter and more vivid
720x1600 pixels	vs	+1080x2246 pixels111% Higher resolution screen
270 PPI	vs	+402 PPI49% Crisper display of text, images and videos because it has more pixels per inch (ppi)
LED flash	vs	+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light
EIS: Digital stabilization	vs	+OIS (4-axis): Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video
f/2.0 (aperture)	vs	+f/1.8 (aperture)11% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
Full HD (1920x1080)	vs	+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera
(4G LTE-A) 300 Mbps	vs	+(4G LTE-A) 800 Mbps167% Faster for surfing the internet and download files
Virtual ambient light sensor	vs	+Ambient light sensorAdvantage Sensors help you use the device
15W	vs	+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.
1 slot (Single-SIM) (dedicated slot)	vs	+2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)Advantage You can have more mobile carriers/operators on the same device.
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely
Not supported	vs	+Gorilla GlassAdvantage Protection against scratches on the screen lets you carry your phone with your keys

28 Common items in both devices

Until 512GB microSD, microSDXC / Until 1TB microSD, microSDXC

60Hz

16 million

Only digital zoom

PDAF: phase detection autofocus

HDR photo on both cameras

(front) Full HD (1920x1080)

+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
	Galaxy A21s (SM-A217F)	Asus Zenfone 5Z (ZS621KL 64GB)
Change model		Choose the model
Model	Galaxy A21s (SM-A217F)	Zenfone 5Z (ZS621KL 64GB)
Other model names	Galaxy A21s SM-A217F Single-Sim (32GB + 3GB RAM)	Asus Zenfone 5z 6GB RAM (ZS621KL), ASUS_Z01RD
Country or region available	South Africa, Australia, New Zealand	India
Brand	Samsung	Asus
Release date	6/2/2020, Announced: 5/15/2020	6/1/2018
Depth	8.9 millimeters (0.35 inches)	7.9 millimeters (0.31 inches)
Size (width x height)	75.3 x 163.7 millimeters (2.96 x 6.44 in)	75.65 x 153 millimeters (2.98 x 6.02 in)
Weight	192 grams (6.72 ounces)	165 grams (5.78 ounces)
Build, materials	Plastic body, glass front	Aluminum frame, glass front/back
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy A21s (SM-A217F)	Asus Zenfone 5Z (ZS621KL 64GB)
Display type	TFT PLS	TFT IPS LCD
Screen size	6.5" inches	6.2" inches
Screen-to-body ratio	~82.8% (screen-to-body ratio)	~83.7% (screen-to-body ratio)
Display resolution	720x1600 pixels (20:9)	1080x2246 pixels (18.7:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	270 PPI	402 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass
Refresh rate	60Hz	60Hz
Display features	Not supported	550nits[typ]
🤖 Operating System
	Galaxy A21s (SM-A217F)	Asus Zenfone 5Z (ZS621KL 64GB)
System version	Android 10	Android 8.0 Oreo
Firmware update	Android 12	Android 10
User Interface	One UI 2.0 / 3.1 / 4.1	feature not registered
⚙️ Processor
	Galaxy A21s (SM-A217F)	Asus Zenfone 5Z (ZS621KL 64GB)
Chipset	64bit: Samsung Exynos 850 (8nm)	64bit: Qualcomm Snapdragon 845 MSM8998 (10nm)
CPU	Octa-core, 1 processor: 8x 2GHz ARM Cortex-A55 (Octa-core)	Octa-core, 2 processors: 4x 2.7GHz Kryo 385 Gold (Quad-core) 4x 1.7GHz Kryo 385 Silver (Quad-core)
GPU graphical controller	ARM Mali-G52 MP1	Qualcomm Adreno 630 710Mhz
Performance (benchmark)	AnTuTu: 107157 (v8) Geekbench: 1100 (v5.1) GFXBench: 11fps (ES 3.1 onscreen)	feature not registered
💽 Memory and storage
	Galaxy A21s (SM-A217F)	Asus Zenfone 5Z (ZS621KL 64GB)
RAM memory	3GB LPDDR4X	6GB LPDDR4X
Internal storage	32GB (19GB available) eMMC 5.1	64GB (51GB available) UFS 2.1
External storage	Until 512GB microSD, microSDXC (dedicated slot)	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Galaxy A21s (SM-A217F)	Asus Zenfone 5Z (ZS621KL 64GB)
Dual-SIM	Not supported	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	1 slot (Single-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	300/150 Mbps	800/100 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	UMTS 850/900/1900/2100	UMTS 800/850/900
Primary 4G network	LTE Cat7/13 (1, 2, 3, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41)	LTE Cat15 (Bands 1,2,3,5,7,8,18,19,20,26,28) TD-LTE (Bands 38,39,40,41)
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	Not supported	GSM 850/900/1800/1900
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	Not supported	GPRS, EDGE
📷 Camera
	Galaxy A21s (SM-A217F)	Asus Zenfone 5Z (ZS621KL 64GB)
Back camera (main camera)	(quad camera) 48 megapixels 8MP ultrawide f/2.21/4"1.12µm123° 2MP macro f/2.4 2MP depth f/2.4	(dual camera) 12 megapixels 8MP ultrawide f/2.012mm1/4"1.12µmFF
Main camera resolution	8000x6000 pixels	4000x3000 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	Dual-LED flash
Focal aperture	f/2.0 (aperture)	f/1.8 (aperture)
Focal length	26mm (lens)	24mm (lens)
Sensor size	1/2" inches	1/2.55" inches
Pixel size	0.8µm pixel	1.4µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	OIS (4-axis): Optical 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
	Galaxy A21s (SM-A217F)	Asus Zenfone 5Z (ZS621KL 64GB)
Front camera (secondary)	13 megapixels	8 megapixels
Front camera resolution	4128x3096 pixels	3264x2448 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	24mm (lens)
Sensor size	1/3.1" inches	1/4" inches
Pixel size	1.12µm pixel	1.12µm pixel
🔉 Sound and multimedia
	Galaxy A21s (SM-A217F)	Asus Zenfone 5Z (ZS621KL 64GB)
Loudspeaker	Mono sound (not stereo)	Supported
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, XviD, MKV	MP4, H.265, H.264, H.263
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, OGG, eAAC+, FLAC
🔌 Connectivity
	Galaxy A21s (SM-A217F)	Asus Zenfone 5Z (ZS621KL 64GB)
USB	USB 2.0 Type-C reversible connector	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	5.0 + A2DP/LE	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Not supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy A21s (SM-A217F)	Asus Zenfone 5Z (ZS621KL 64GB)
Sensors	Accelerometer Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor Virtual ambient light sensor	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy A21s (SM-A217F)	Asus Zenfone 5Z (ZS621KL 64GB)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	5000 mAh	3300 mAh
Charger, watts	15W (9V/1.67A) Wired fast charging	18W (9V/2A) Wired fast charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	feature not registered	25 hours (1 days)
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy A21s (SM-A217F)	Asus Zenfone 5Z (ZS621KL 64GB)
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: Black, White, Blue, Red	• Colors: Midnight Blue, Meteor Silver • 2.5D curved glass screen • 95% DCI-P3 coverage • Supports glove touch • ASUS ZenUI 5.0 • 24-bit/192kHz audio • DTS sound (only headphones)
☢️ Radiation rate
	Galaxy A21s (SM-A217F)	Asus Zenfone 5Z (ZS621KL 64GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	1.04W/kg (head), 0.37W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	0.422W/kg (head), 1.544W/kg (body)	1.2W/kg (head), 1.477W/kg (body)