Asus Zenfone 3 (5.2 ZE520KL 32GB) vs Motorola Moto G51 (128GB/6GB)

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Side by side comparison between Asus Zenfone 3 vs Motorola Moto G51 phones, differences, pros, cons and full specifications. What's the better?

11/3/2021 7:50 PM, updated: 3/13/2023 9:26 AM

Compare Motorola Moto G51 X Asus Zenfone 3 (5.2 ZE520KL 32GB) 09Points

Specifications Compare Models Pictures

5.2"
IPS+

1080x1920

16
MP

8mp

3GB
RAM

Octa-core

2650
mAh

(Non removable)

19Points Motorola Moto G51 (128GB/6GB) Compare Asus Zenfone 3 X

Specifications Compare Models Pictures

6.8"
IPS

1080x2400

50
MP

13mp

6GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Motorola Moto G51 (128GB/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!

9 Advantages Asus Zenfone 3 (5.2 ZE520KL 32GB)	vs	19 Advantages Motorola Moto G51 (128GB/6GB)
+144 grams (5.04 ounces)44% Lighter	vs	208 grams (7.28 ounces)
+7.7 millimeters (0.3 inches)18% Thinner	vs	9.1 millimeters (0.36 inches)
+Aluminum body, glass front, plastic backAdvantage More resistant material	vs	Plastic body, glass front
+424 PPI10% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	387 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)
+CompassAdvantage Sensors help you use the device	vs	Not supported
+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
2GHz 64bit Octa-core (14nm)	vs	+2.2GHz 64bit Octa-core (8nm)10% More powerful processor, you can open your applications faster
3GB LPDDR3	vs	+6GB LPDDR4X100% More RAM memory. Typically more responsive and better for multitasking.
32GB (24GB available)	vs	+128GB (108GB 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
60Hz	vs	+120Hz100% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
1080x1920 pixels	vs	+1080x2400 pixels25% Higher resolution screen
5.2"	vs	+6.8"31% Larger screen
(back) 16MP	vs	+(triple camera) 50MP + 8MP + 2MP3 times Higher resolution main camera
Not supported	vs	+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness
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.
(front) 8MP	vs	+(front) 13MP60% Higher resolution secondary camera to take pictures and selfies
Android 8.0 Oreo	vs	+Android 11Advantage Android 11 is newer and safer
4G LTE	vs	+5G SA/NSAAdvantage The 5G SA/NSA network is newer and faster
(4G LTE) 150 Mbps	vs	+(5G SA/NSA) 2000 Mbps12 times Faster for surfing the internet and download files
Not supported	vs	+Face unlock 2DAdvantage Sensors help you use the device
2650 mAh	vs	+5000 mAh89% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
4.2 + A2DP	vs	+5.1 + A2DP/LEAdvantage Bluetooth 5.1 + A2DP/LE is newer and faster
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely
Not supported	vs	+IP52 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example

28 Common items in both devices

eMMC 5.1

TFT Super IPS+ / TFT IPS LCD

16 million

Only digital zoom

LDAF/PDAF: laser/phase detection autofocus / 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
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Moto G51 (128GB/6GB)
Change model		Choose the model
Model	Zenfone 3 (5.2 ZE520KL 32GB)	Moto G51 (128GB/6GB)
Other model names	Zenfone 3 ZE520KL 3GB/32GB 5.2" Dual-SIM	Lenovo Moto G51 5G (XT2171-1, XT2171-2, XT2171-3)
Country or region available	(Global, International), Brazil, China, Philippines, India	(Global, International)
Brand	Asus	Motorola
Release date	7/12/2016	11/30/2021, Announced: 11/3/2021
Depth	7.7 millimeters (0.3 inches)	9.1 millimeters (0.36 inches)
Size (width x height)	73.98 x 146.87 millimeters (2.91 x 5.78 in)	76.5 x 170.5 millimeters (3.01 x 6.71 in)
Weight	144 grams (5.04 ounces)	208 grams (7.28 ounces)
Build, materials	Aluminum body, glass front, plastic back	Plastic body, glass front
Protection against water and others	Not supported	IP52 certified: protection against dust and splashing
📲 Display
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Moto G51 (128GB/6GB)
Display type	TFT Super IPS+	TFT IPS LCD
Screen size	5.2" inches	6.8" inches
Screen-to-body ratio	~68.6% (screen-to-body ratio)	~85.6% (screen-to-body ratio)
Display resolution	1080x1920 pixels (16:9)	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	424 PPI	387 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Not supported
Refresh rate	60Hz	120Hz
Display features	2.5D glass	Not supported
🤖 Operating System
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Moto G51 (128GB/6GB)
System version	Android 6.0.1 Marshmallow	Android 11
Firmware update	Android 8.0 Oreo	feature not registered
User Interface	ZenUI 3.0	My UX
⚙️ Processor
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Moto G51 (128GB/6GB)
Chipset	64bit: Qualcomm Snapdragon 625 (MSM8953) (14nm)	64bit: Qualcomm Snapdragon 480+ (SM4350-AC) (8nm)
CPU	Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core)	Octa-core, 2 processors: 2x 2.2GHz Kryo 460 (Dual-core) 6x 1.8GHz Kryo 460 (Hexa-core)
GPU graphical controller	Qualcomm Adreno 506 (650MHz)	Qualcomm Adreno 619
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Moto G51 (128GB/6GB)
RAM memory	3GB LPDDR3	6GB LPDDR4X
Internal storage	32GB (24GB available) eMMC 5.1	128GB (108GB available) eMMC 5.1
External storage	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Until 512GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Moto G51 (128GB/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 (hybrid slot/shares the same microSD 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	2000/1024 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G, 5G
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 India: UMTS 850/900/2100 Brazil: UMTS 850/900/1700/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat4 Global: LTE (1, 2, 3, 5, 7, 8, 20) India: LTE (1, 3, 5, 8) TD-LTE (40) Brazil: LTE (1, 2, 3, 4, 5, 7, 8, 17, 28)	LTE Cat15 (1, 2, 3, 5, 7, 8, 18, 20, 26, 28, 32) TD-LTE (38, 40, 41, 42, 43) VoLTE
Primary 5G network	Not supported	SA/NSA (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78)
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	Global: UMTS 850/900/1900/2100 India: UMTS 850/900/2100 Brazil: UMTS 850/900/1700/1900/2100	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat15 (1, 2, 3, 5, 7, 8, 18, 20, 26, 28, 32) TD-LTE (38, 40, 41, 42, 43) VoLTE
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
📷 Camera
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Moto G51 (128GB/6GB)
Back camera (main camera)	16 megapixels	(triple camera) 50 megapixels 8MP ultrawide f/2.2118°1/4"1.12µm 2MP macro f/2.4
Main camera resolution	4608x3456 pixels	8160x6120 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	Full HD (1920x1080) 60 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/2.0 (aperture)	f/1.8 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	1/2.76" inches
Pixel size	feature not registered	0.64µm 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	Supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	4K@30fps 1080p@30/60fps	1080p@240fps
📸 Front camera
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Moto G51 (128GB/6GB)
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	feature not registered
Pixel size	feature not registered	1.12µm pixel
🔉 Sound and multimedia
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Moto G51 (128GB/6GB)
Loudspeaker	Mono sound (not stereo) 24-bit/192kHz	Mono sound (not stereo) Dolby Atmos
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 (5.2 ZE520KL 32GB)	Moto G51 (128GB/6GB)
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	USB Type-C (reversible)	USB Type-C (reversible)
Bluetooth	4.2 + A2DP	5.1 + 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
NFC	Not supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Moto G51 (128GB/6GB)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Moto G51 (128GB/6GB)
Battery type	Li-Ion: lithium-ion (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	2650 mAh	5000 mAh
Charger, watts	10W (5V/2A) Wired charging	10W Wired 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 (5.2 ZE520KL 32GB)	Moto G51 (128GB/6GB)
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: Indigo Blue, Aqua Blue, Bright Silver
☢️ Radiation rate
	Asus Zenfone 3 (5.2 ZE520KL 32GB)	Moto G51 (128GB/6GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered