Asus Zenfone Zoom (ZX551ML 32GB) vs LG Optimus L9 (P768)

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Side by side comparison between Asus Zenfone Zoom (ZX551ML) vs LG Optimus L9 phones, differences, pros, cons and full specifications. What's the better?

4/30/2020 8:04 AM, updated: 6/19/2025 7:55 AM

Compare LG Optimus L9 X Asus Zenfone Zoom (ZX551ML 32GB) 23Points

Specifications Compare Models Pictures

5.5"
IPS

1080x1920

13
MP

5mp

4GB
RAM

Quad-core

3000
mAh

(Non removable)

06Points LG Optimus L9 (P768) Compare Asus Zenfone Zoom (ZX551ML) X

Specifications Compare Models Pictures

4.7"
IPS

540x960

8
MP

0.3mp

1GB
RAM

Dual-core

2150
mAh

(Removable)

What's the better phone? Asus Zenfone Zoom (ZX551ML 32GB)

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!

23 Advantages Asus Zenfone Zoom (ZX551ML 32GB)	vs	6 Advantages LG Optimus L9 (P768)
+2.5GHz 64bit Quad-core3 times More powerful processor, you can open your applications faster	vs	1GHz 32bit Dual-core (45nm)
+4GB LPDDR33 times More RAM memory. Typically more responsive and better for multitasking.	vs	1GB LPDDR2
+32GB (26GB available)9 times More internal storage for applications and files	vs	4GB (2.68GB available)
+Until 128GB microSD, microSDXC3 times More external storage for files using memory cards	vs	Until 32GB microSD, microSDHC
+Aluminum frame, glass front, leather backAdvantage More resistant material	vs	Plastic body, glass front
+1080x1920 pixels3 times Higher resolution screen	vs	540x960 pixels
+401 PPI71% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	234 PPI
+5.5"17% Larger screen	vs	4.7"
+(back) 13MP60% Higher resolution main camera	vs	(back) 8MP
+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
+HDR photo only main cameraAdvantage The HDR technology produced photos with more detail in dark areas	vs	Not supported
+(front) 5MP15 times Higher resolution secondary camera to take pictures and selfies	vs	(front) 0.3MP
+(front) HD (1280x720)2 times More image quality for recording videos with the secondary camera	vs	(front) VGA (640x480)
+Android 6.0 MarshmallowAdvantage Android 6.0 Marshmallow is newer and safer	vs	Android 4.1.2 Jelly Bean
+4G LTEAdvantage The 4G LTE network is newer and faster	vs	3G+ HSPA+
+(4G LTE) 150 Mbps6 times Faster for surfing the internet and download files	vs	(3G+ HSPA+) 21 Mbps
+GyroscopeAdvantage Sensors help you use the device	vs	Not supported
+3000 mAh40% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	2150 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 b/g/n [wifi4]
+4.0 + A2DPAdvantage Bluetooth 4.0 + A2DP is newer and faster	vs	3.0 + A2DP
+Gorilla Glass 4Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
185 grams (6.48 ounces)	vs	+125 grams (4.38 ounces)48% Lighter
12 millimeters (0.47 inches)	vs	+9.1 millimeters (0.36 inches)32% Thinner
LiPo: li-ion polymer (Non removable)	vs	+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily
Not supported	vs	+Active noise cancellationAdvantage More noise-canceling microphones allow for better quality in calls and audio for recorded videos
Not supported	vs	+FM (RDS)Advantage The radio lets you listen to your songs and sports in general
Not supported	vs	+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.

18 Common items in both devices

TFT IPS LCD

16 million

LDAF: laser detection autofocus / Autofocus

Full HD (1920x1080)

Capacitive

Multitouch

Accelerometer

+11 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 32GB)	LG Optimus L9 (P768)
Change model		Choose the model
Model	Zenfone Zoom (ZX551ML 32GB)	Optimus L9 (P768)
Other model names	Asus Zenfone Zoom ZX551ML (4G), Asus ZX551ML	LG Optimus L9 P768, LG P768, LG L9
Country or region available	(Latin America), (Europe)	(Latin America), (Global, International)
Brand	Asus	LG
Release date	12/1/2015	12/1/2012, Announced: 10/1/2012
Depth	12 millimeters (0.47 inches)	9.1 millimeters (0.36 inches)
Size (width x height)	78.8 x 158.9 millimeters (3.1 x 6.26 in)	68.2 x 131.9 millimeters (2.69 x 5.19 in)
Weight	185 grams (6.48 ounces)	125 grams (4.38 ounces)
Build, materials	Aluminum frame, glass front, leather back	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Asus Zenfone Zoom (ZX551ML 32GB)	LG Optimus L9 (P768)
Display type	TFT IPS LCD	TFT IPS LCD
Screen size	5.5" inches	4.7" inches
Screen-to-body ratio	~66.6% (screen-to-body ratio)	~67.7% (screen-to-body ratio)
Display resolution	1080x1920 pixels	540x960 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	401 PPI	234 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 4	Not supported
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Not supported
🤖 Operating System
	Asus Zenfone Zoom (ZX551ML 32GB)	LG Optimus L9 (P768)
System version	Android 5.0.2 Lollipop	Android 4.0.4 Ice Cream Sandwich ICS
Firmware update	Android 6.0 Marshmallow	Android 4.1.2 Jelly Bean
User Interface	feature not registered	LG Optimus UI 3.0
⚙️ Processor
	Asus Zenfone Zoom (ZX551ML 32GB)	LG Optimus L9 (P768)
Chipset	64bit: Intel Atom Z3590 (22nm)	32bit: Texas Instruments OMAP 4430 (45nm)
CPU	Quad-core, 1 processor: 4x 2.5GHz Intel Silvermont (Quad-core)	Dual-core, 1 processor: 2x 1GHz ARM Cortex-A9 (Dual-core)
GPU graphical controller	PowerVR G6430 MP4	PowerVR SGX540 MP1 (365MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Asus Zenfone Zoom (ZX551ML 32GB)	LG Optimus L9 (P768)
RAM memory	4GB LPDDR3	1GB LPDDR2
Internal storage	32GB (26GB available)	4GB (2.68GB available) eMMC 4.41
External storage	Until 128GB microSD, microSDXC (dedicated slot)	Until 32GB microSD, microSDHC (dedicated slot)
📶 Mobile networks
	Asus Zenfone Zoom (ZX551ML 32GB)	LG Optimus L9 (P768)
Dual-SIM	Not supported	Not supported
SIM card	1 slot (Single-SIM) micro-SIM (3FF)	1 slot (Single-SIM) Standard mini-SIM (2FF)
Maximum Download / Upload	150/50 Mbps	21/5.76 Mbps
Network technology	2G, 3G, 4G	2G, 3G
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 850/900/2100
Primary 4G network	LTE Cat4 (Bands 1, 2, 3, 5, 7, 8, 9, 18, 19, 28)	Not supported
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
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 32GB)	LG Optimus L9 (P768)
Back camera (main camera)	13 megapixels	8 megapixels
Main camera resolution	4128x3096 pixels	3264x2448 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)	feature not registered
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	Not supported
Camera extras	feature not registered	feature not registered
📸 Front camera
	Asus Zenfone Zoom (ZX551ML 32GB)	LG Optimus L9 (P768)
Front camera (secondary)	5 megapixels	0.3 megapixels
Front camera resolution	2560x1920 pixels	640x480 pixels
Video recording (secondary)	HD (1280x720)	VGA (640x480)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	feature not registered
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 32GB)	LG Optimus L9 (P768)
Loudspeaker	Supported	Mono sound (not stereo) Dolby Mobile sound
Active noise cancellation	Not supported	2 microphones
Radio	Not supported	FM (RDS)
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263	MP4, DivX, XviD, H.263, H.264, WMV
Audio formats	MP3, WAV, eAAC+	MP3, WAV, WMA, eAAC+
🔌 Connectivity
	Asus Zenfone Zoom (ZX551ML 32GB)	LG Optimus L9 (P768)
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	3.0 + A2DP
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot
DLNA	Not supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, BeiDou	A-GPS, GeoTagging
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Asus Zenfone Zoom (ZX551ML 32GB)	LG Optimus L9 (P768)
Sensors	Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Asus Zenfone Zoom (ZX551ML 32GB)	LG Optimus L9 (P768)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Removable)
Battery capacity	3000 mAh	2150 mAh
Charger, watts	18W Wired fast charging	Wired charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	feature not registered	11 hours
Standby	feature not registered	798 hours (33.3 days)
➕ Other features
	Asus Zenfone Zoom (ZX551ML 32GB)	LG Optimus L9 (P768)
Call control	Voice dialing, Voice recorder	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: 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: White, Black • QMemo, QTranslator • Java framework
☢️ Radiation rate
	Asus Zenfone Zoom (ZX551ML 32GB)	LG Optimus L9 (P768)
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