Asus Zenfone AR (ZS571KL 128GB) vs Samsung Galaxy A51 (SM-A515F/DSM 128GB)

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Side by side comparison between Asus Zenfone AR vs Samsung Galaxy A51 phones, differences, pros, cons and full specifications. What's the better?

5/14/2020 1:46 PM, updated: 11/21/2022 8:39 AM

Compare Samsung Galaxy A51 X Asus Zenfone AR (ZS571KL 128GB) 10Points

Specifications Compare Models Pictures

5.7"
AMOLED

1440x2560

23
MP

8mp

6GB
RAM

Quad-core

3300
mAh

(Non removable)

11Points Samsung Galaxy A51 (SM-A515F/DSM 128GB) Compare Asus Zenfone AR X

Specifications Compare Models Pictures

6.5"
AMOLED

1080x2400

48
MP

32mp

6GB
RAM

Octa-core

4000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A51 (SM-A515F/DSM 128GB)

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!

10 Advantages Asus Zenfone AR (ZS571KL 128GB)	vs	11 Advantages Samsung Galaxy A51 (SM-A515F/DSM 128GB)
+UFS 2.0Advantage Fastest write and read storage.	vs	eMMC 5.1
+170 grams (5.95 ounces)1% Lighter	vs	172 grams (6.02 ounces)
+Aluminum body, glass front, plastic backAdvantage More resistant material	vs	Plastic body, glass front
+1440x2560 pixels42% Higher resolution screen	vs	1080x2400 pixels
+515 PPI27% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	405 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
+BarometerAdvantage Sensors help you use the device	vs	Not supported
+Proximity sensorAdvantage Sensors help you use the device	vs	Virtual proximity 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
2.35GHz 64bit Quad-core	vs	+2.3GHz 64bit Octa-core (10nm)23% More powerful processor, you can open your applications faster
8.9 millimeters (0.35 inches)	vs	+7.9 millimeters (0.31 inches)13% Thinner
5.7"	vs	+6.5"14% Larger screen
(back) 23MP	vs	+(quad camera) 48MP + 12MP + 5MP + 5MP2 times Higher resolution main camera
1/2.6" inches	vs	+1/2" inches30% The larger sensor camera lets you take photos with better depth.
(front) 8MP	vs	+(front) 32MP3 times Higher resolution secondary camera to take pictures and selfies
(front) Full HD (1920x1080)	vs	+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera
Android 7.0 Nougat	vs	+Android 13Advantage Android 13 is newer and safer
Not supported	vs	+ANT+Advantage Sensors help you use the device
3300 mAh	vs	+4000 mAh21% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
4.2 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster

30 Common items in both devices

6GB LPDDR4 / 6GB LPDDR4X

128GB (110GB available) / 128GB (107GB available)

Until 1TB microSD, microSDXC

Super AMOLED

60Hz

16 million

Only digital zoom

+23 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 AR (ZS571KL 128GB)	Galaxy A51 (SM-A515F/DSM 128GB)
Change model		Choose the model
Model	Zenfone AR (ZS571KL 128GB)	Galaxy A51 (SM-A515F/DSM 128GB)
Other model names	Asus Zenfone AR ZS571KL (128GB+6GB RAM) A002A, A002	Samsung Galaxy A51 SM-A515F/DSM
Country or region available	(Global, International)	Kazakhstan, Russia
Brand	Asus	Samsung
Release date	5/1/2017, Announced: 1/9/2017	12/16/2019, Announced: 12/12/2019
Depth	8.9 millimeters (0.35 inches)	7.9 millimeters (0.31 inches)
Size (width x height)	77.4 x 158.7 millimeters (3.05 x 6.25 in)	73.6 x 158.5 millimeters (2.9 x 6.24 in)
Weight	170 grams (5.95 ounces)	172 grams (6.02 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 AR (ZS571KL 128GB)	Galaxy A51 (SM-A515F/DSM 128GB)
Display type	Super AMOLED	Super AMOLED
Screen size	5.7" inches	6.5" inches
Screen-to-body ratio	~72.9% (screen-to-body ratio)	~87.4% (screen-to-body ratio)
Display resolution	1440x2560 pixels (16:9)	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	515 PPI	405 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 4	Gorilla Glass 3
Refresh rate	60Hz	60Hz
Display features	Not supported	Always-On Display
🤖 Operating System
	Asus Zenfone AR (ZS571KL 128GB)	Galaxy A51 (SM-A515F/DSM 128GB)
System version	Android 7.0 Nougat	Android 10
Firmware update	feature not registered	Android 13
User Interface	ZenUI 3.0	One UI 2.5 / 3.1 / 4.1 / 5.0
⚙️ Processor
	Asus Zenfone AR (ZS571KL 128GB)	Galaxy A51 (SM-A515F/DSM 128GB)
Chipset	64bit: Qualcomm Snapdragon 821 MSM8996 (14nm)	64bit: Samsung Exynos 9611 (10nm)
CPU	Quad-core, 2 processors: 2x 2.35GHz Kryo (Dual-core) 2x 1.6GHz Kryo (Dual-core)	Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	Qualcomm Adreno 530 650Mhz	ARM Mali-G72 MP3 (850MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Asus Zenfone AR (ZS571KL 128GB)	Galaxy A51 (SM-A515F/DSM 128GB)
RAM memory	6GB LPDDR4	6GB LPDDR4X
Internal storage	128GB (110GB available) UFS 2.0	128GB (107GB available) eMMC 5.1
External storage	Until 1TB microSD, microSDXC (dedicated slot)	Until 1TB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Asus Zenfone AR (ZS571KL 128GB)	Galaxy A51 (SM-A515F/DSM 128GB)
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	600/75 Mbps	600/150 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 version: UMTS 800/850/900/1900/2100 America version: UMTS 850/900/1700/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat12 VoLTE Global version: LTE (Bands 1, 2, 3, 5, 7, 8, 18, 19, 20, 26, 28) TD-LTE (Bands 38, 40, 41) America version: LTE (Bands 1, 2, 3, 4, 5, 7, 12, 13, 20, 29)	LTE Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE
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	GSM 850/900/1800/1900
Secondary 3G network	UMTS 850/900/1900/2100	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+	GPRS, EDGE
📷 Camera
	Asus Zenfone AR (ZS571KL 128GB)	Galaxy A51 (SM-A515F/DSM 128GB)
Back camera (main camera)	23 megapixels	(quad camera) 48 megapixels 12MP ultrawide f/2.213mm1.12µm 5MP telephoto f/2.440mm 5MP depth f/2.21/5.0"1.12µm
Main camera resolution	5536x4152 pixels	8000x6000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	27mm lens	26mm lens
Sensor size	1/2.6" inches	1/2" inches
Pixel size	1µm pixel	0.8µm pixel
Autofocus	PDAF: 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	Motion tracking sensors	feature not registered
📸 Front camera
	Asus Zenfone AR (ZS571KL 128GB)	Galaxy A51 (SM-A515F/DSM 128GB)
Front camera (secondary)	8 megapixels	32 megapixels
Front camera resolution	3264x2448 pixels	6528x4896 pixels
Video recording (secondary)	Full HD (1920x1080)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	26mm lens
Sensor size	1/4" inches	1/2.8" inches
Pixel size	1.12µm pixel	0.8µm pixel
🔉 Sound and multimedia
	Asus Zenfone AR (ZS571KL 128GB)	Galaxy A51 (SM-A515F/DSM 128GB)
Loudspeaker	Mono sound (not stereo) Hi-Res audio	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	FM (RDS)
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
	Asus Zenfone AR (ZS571KL 128GB)	Galaxy A51 (SM-A515F/DSM 128GB)
USB	USB 2.0 Type-C, USB OTG On-The-Go	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	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 AR (ZS571KL 128GB)	Galaxy A51 (SM-A515F/DSM 128GB)
Sensors	Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (front-mounted) Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor ANT+ Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Asus Zenfone AR (ZS571KL 128GB)	Galaxy A51 (SM-A515F/DSM 128GB)
Battery type	Li-Ion: lithium-ion (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	3300 mAh	4000 mAh
Charger, watts	18W (9V/2A) Wired fast charging Quick Charge 3	15W 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 AR (ZS571KL 128GB)	Galaxy A51 (SM-A515F/DSM 128GB)
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 • Tango and Daydream by Google	• Colors: Prism, Crush Black, White, Blue, Pink
☢️ Radiation rate
	Asus Zenfone AR (ZS571KL 128GB)	Galaxy A51 (SM-A515F/DSM 128GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.369W/kg (head), 1.59W/kg (body)