Asus Zenfone Zoom (ZX551ML 128GB) vs LG Class (F620S)

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Side by side comparison between Asus Zenfone Zoom (ZX551ML) vs LG Class phones, differences, pros, cons and full specifications. What's the better?

4/25/2017 12:38 AM, updated: 5/12/2020 9:07 PM

Compare LG Class X Asus Zenfone Zoom (ZX551ML 128GB) 14Points

Specifications Compare Models Pictures

5.5"
IPS

1080x1920

13
MP

5mp

4GB
RAM

Quad-core

3000
mAh

(Non removable)

10Points LG Class (F620S) Compare Asus Zenfone Zoom (ZX551ML) X

Specifications Compare Models Pictures

5"
IPS

720x1280

13
MP

8mp

2GB
RAM

Quad-core

2050
mAh

(Non removable)

What's the better phone? Asus Zenfone Zoom (ZX551ML 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!

14 Advantages Asus Zenfone Zoom (ZX551ML 128GB)	vs	10 Advantages LG Class (F620S)
+2.5GHz 64bit Quad-core118% More powerful processor, you can open your applications faster	vs	1.2GHz 64bit Quad-core (28nm)
+4GB LPDDR3100% More RAM memory. Typically more responsive and better for multitasking.	vs	2GB LPDDR3
+128GB (122GB available)11 times More internal storage for applications and files	vs	16GB (10GB available)
+1080x1920 pixels125% Higher resolution screen	vs	720x1280 pixels
+401 PPI36% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	294 PPI
+5.5"10% Larger screen	vs	5"
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures	vs	Only digital zoom
+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+CompassAdvantage Sensors help you use the device	vs	Not supported
+GyroscopeAdvantage Sensors help you use the device	vs	Not supported
+3000 mAh46% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	2050 mAh
+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster	vs	802.11 a/b/g/n [wifi4]
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
Until 128GB microSD, microSDXC	vs	+Until 256GB microSD, microSDHC100% More external storage for files using memory cards
185 grams (6.48 ounces)	vs	+150 grams (5.25 ounces)23% Lighter
12 millimeters (0.47 inches)	vs	+7.4 millimeters (0.29 inches)62% Thinner
f/2.7 (aperture)	vs	+f/2.2 (aperture)23% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 5MP	vs	+(front) 8MP63% Higher resolution secondary camera to take pictures and selfies
(front) HD (1280x720)	vs	+(front) Full HD (1920x1080)125% More image quality for recording videos with the secondary camera
Not supported	vs	+FM (RDS)Advantage The radio lets you listen to your songs and sports in general
Not supported	vs	+Digital TVAdvantage Watch your favorite TV shows anywhere
Not supported	vs	+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
4.0 + A2DP	vs	+4.1 + A2DPAdvantage Bluetooth 4.1 + A2DP is newer and faster

23 Common items in both devices

TFT IPS LCD

16 million

(back) 13MP

LDAF: laser detection autofocus / Autofocus

HDR photo only main camera

Full HD (1920x1080)

Android 6.0 Marshmallow

+16 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 Zoom (ZX551ML 128GB)	LG Class (F620S)
Change model		Choose the model
Model	Zenfone Zoom (ZX551ML 128GB)	Class (F620S)
Other model names	Asus Zenfone Zoom ZX551ML (4G), Asus ZX551ML	SKT LG Class, LG Zero F620S, LG-F620S, LGF620S
Country or region available	(Latin America), (Europe)	South Korea
Brand	Asus	LG
Release date	12/1/2015	9/30/2015
Depth	12 millimeters (0.47 inches)	7.4 millimeters (0.29 inches)
Size (width x height)	78.8 x 158.9 millimeters (3.1 x 6.26 in)	71.8 x 142 millimeters (2.83 x 5.59 in)
Weight	185 grams (6.48 ounces)	150 grams (5.25 ounces)
Build, materials	Aluminum frame, glass front, leather back	feature not registered
Protection against water and others	Not supported	Not supported
📲 Display
	Asus Zenfone Zoom (ZX551ML 128GB)	LG Class (F620S)
Display type	TFT IPS LCD	TFT IPS LCD
Screen size	5.5" inches	5" inches
Screen-to-body ratio	~66.6% (screen-to-body ratio)	~67.6% (screen-to-body ratio)
Display resolution	1080x1920 pixels	720x1280 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	401 PPI	294 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 4	Gorilla Glass 3
Refresh rate	feature not registered	feature not registered
Display features	feature not registered	feature not registered
🤖 Operating System
	Asus Zenfone Zoom (ZX551ML 128GB)	LG Class (F620S)
System version	Android 5.0.2 Lollipop	Android 5.1.1 Lollipop
Firmware update	Android 6.0 Marshmallow	Android 6.0 Marshmallow
User Interface	feature not registered	feature not registered
⚙️ Processor
	Asus Zenfone Zoom (ZX551ML 128GB)	LG Class (F620S)
Chipset	64bit: Intel Atom Z3590 (22nm)	64bit: Qualcomm Snapdragon 410 (MSM8916) (28nm)
CPU	Quad-core, 1 processor: 4x 2.5GHz Intel Silvermont (Quad-core)	Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	PowerVR G6430 MP4	Qualcomm Adreno 306 (450MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Asus Zenfone Zoom (ZX551ML 128GB)	LG Class (F620S)
RAM memory	4GB LPDDR3	2GB LPDDR3
Internal storage	128GB (122GB available)	16GB (10GB available) eMMC 4.5
External storage	Until 128GB microSD, microSDXC (dedicated slot)	Until 256GB microSD, microSDHC (dedicated slot)
📶 Mobile networks
	Asus Zenfone Zoom (ZX551ML 128GB)	LG Class (F620S)
Dual-SIM	Not supported	Not supported
SIM card	1 slot (Single-SIM) micro-SIM (3FF)	1 slot (Single-SIM) nano-SIM (4FF)
Maximum Download / Upload	150/50 Mbps	150/50 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 850/1900/2100
Primary 4G network	LTE Cat4 (Bands 1, 2, 3, 5, 7, 8, 9, 18, 19, 28)	LTE Cat4 700/850/900/1800/2100/2600 (Bands 1,3,5,7,8,17)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE
Secondary 2G network	Not supported	Not supported
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	Not supported	Not supported
📷 Camera
	Asus Zenfone Zoom (ZX551ML 128GB)	LG Class (F620S)
Back camera (main camera)	13 megapixels	13 megapixels
Main camera resolution	4128x3096 pixels	4128x3096 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	Full HD (1920x1080) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/2.7 (aperture)	f/2.2 (aperture)
Focal length	28mm (lens)	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
Autofocus	LDAF: laser detection autofocus	Autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	EIS: Digital stabilization
Zoom	Digital and optical zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo only main camera	HDR photo only main camera
Camera extras	feature not registered	feature not registered
📸 Front camera
	Asus Zenfone Zoom (ZX551ML 128GB)	LG Class (F620S)
Front camera (secondary)	5 megapixels	8 megapixels
Front camera resolution	2560x1920 pixels	3264x2448 pixels
Video recording (secondary)	HD (1280x720)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	Asus Zenfone Zoom (ZX551ML 128GB)	LG Class (F620S)
Loudspeaker	Supported	Supported
Active noise cancellation	Not supported	Not supported
Radio	Not supported	FM (RDS)
TV	Not supported	Digital TV
Video formats	MP4, H.264, H.263	MP4, H.264, H.263, XviD
Audio formats	MP3, WAV, eAAC+	MP3, WAV, eAAC+, FLAC
🔌 Connectivity
	Asus Zenfone Zoom (ZX551ML 128GB)	LG Class (F620S)
USB	MicroUSB 2.0, USB OTG On-The-Go	MicroUSB 2.0
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	4.0 + A2DP	4.1 + A2DP
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot	802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) WiFi Direct, hotspot
DLNA	Not supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging, GLONASS
NFC	Supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Asus Zenfone Zoom (ZX551ML 128GB)	LG Class (F620S)
Sensors	Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor	Accelerometer Ambient light sensor Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Asus Zenfone Zoom (ZX551ML 128GB)	LG Class (F620S)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	3000 mAh	2050 mAh
Charger, watts	18W Wired fast charging	Wired charging
Inductive / wireless charging	feature not registered	feature not registered
Talk time autonomy	feature not registered	10 hours
Standby	feature not registered	340 hours (14.2 days)
➕ Other features
	Asus Zenfone Zoom (ZX551ML 128GB)	LG Class (F620S)
Call control	Voice dialing, Voice recorder	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 • Asus ZenUI • Hoya camera sensor • Laser autofocus camera (0.03 seconds) • 3x optical zoom camera • Dual tone flash • Fast battery charging: 60% in 40min • Beidou GPS • 5GB Asus Webstorage	• Colors: Gold, Silver, Blue, Black • 2.5D curved glass screen • Body metal • KnockCode, KnockOn • T-DMB TV
☢️ Radiation rate
	Asus Zenfone Zoom (ZX551ML 128GB)	LG Class (F620S)
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