To properly experience our website, you will need to use an alternate browser or upgrade to a newer version of internet Explorer (IE9 or greater).

The website utilizes responsive design to provide convenient experience that conforms to your devices screen size. In order to get the best possible experience our LG.COM website please follow below instructions.

If you’re using Internet Explorer 8 or earlier, you will need to use an alternate browser such as Firefox or Chrome or upgrade to a newer version of internet Explorer (IE9 or greater).

If you’re using Internet Explorer 9 and higher, turn off your Internet Explorer browser’s “Compatibility View settings” by following steps below:

  • Right click at the top of your browser and make sure the “Menu Bar” option is selected
  • Select “Tools” from the menu bar and then select “Compatibility View settings”
  • In the pop-up menu uncheck all three boxes and click “Close”
  • Your browser window will automatically refresh and you’ll be ready to go
Skip to Contents Skip to Accessibility Help

Optimus F3

  • LS720 Titanium Silver

  • Discontinued Product

Key Features

  • 4G LTE Network Speed*
  • 1.2 GHz Dual-Core Processor
  • Long-Lasting (2,460 Mah) battery with up to 16 Hours Talk Time**
  • Vivid 4.0” IPS Display with Gorilla® Glass 2
Technical Specifications
Carrier Sprint
Form Factor Bar
Camera Yes
Smartphone Android™-Powered
Touch Screen Yes
Web Yes
Type Smart Phone
Form Factor Bar
Technology CDMA, LTE***
Processor 1.2 GHz Dual-Core Processor
Frequencies LTE: Band 25 (1900MHz); CDMA 1x/ EVDO Rev A, Dual-band: 800/1900MHz***
Data Transmission EVDO Rev. A, LTE
Dimensions 4.57" (H) x 2.44" (W) x 0.40" (D)
Weight 4.0 oz.
Display 800 x 480 pixels, 4.0" IPS
Touch Screen Yes
Battery Capacity 2,460 mAh
Talk Time Up to 16 hours*
Internal Memory 1.24 GB
MicroSD™ Memory Slot Support up to 32 GB**
* Certain features may use more power and cause actual standby time to vary.
** MicroSD™ cards sold separately
*** All listed frequency support is network/carrier specific. When roaming, network specific frequency support may not be available. Check with your network provider to see if and to what extent they offer support for this device.
LG and Android™ Enhancements
Android™ Platform Android™ 4.1.2 Platform (Jelly Bean)
User Experience Customized layout options through screen zooming in Gallery, face recognition for Face Unlock, eye-blink detection keeps screen awake, view full text messages in the Notifications Panel, and more
Preloaded Apps Chrome™, Gmail™, Google™ Search™ (Google Now), Google+™, Local, Maps™, Messenger, Navigation, Play Books, Play Magazines, Play Movies & TV, Play Music, Play Store, Shopper™, Talk™, Voice Search™, and YouTube™
Network Sprint 4G LTE Network*,**
Bluetooth® Version 4.0
Mobile Hotspot Share a 4G LTE data connection with up to 8 compatible wireless devices.*,**,***
Wi-Fi® Connectivity 802.11b/g/n
File Share Use Wi-Fi Direct™ to share images, videos, music, and documents with compatible devices.
Qualcomm Enhanced Location Service Aids in determing device location and helps conserve battery power when using location-based apps
* Sprint’s 4G LTE Network not available everywhere
** All listed frequency support is network/carrier specific. When roaming, network specific frequency support may not be available. Check with your network provider to see if and to what extent they offer support for this device.
*** Subject to plan availability. Additional carrier charges may apply.
Video Player Touch Lock and Resume Play Function; supports WMV, MP4, 3GP, & 3G2 Formats
Music Player Support for MP3, AAC, AAC+, WMA, and WAV Formats
SmartShare Share media wirelessly to DLNA®- enabled devices.
Media Sync (MTP) Transfer files or synchronize with Windows® Media Player.*
USB and Bluetooth® Tethering Share your phone’s Internet connection with your computer.*
* USB cable required (included)
Front-Facing Camera VGA Front-Facing Camera
Rear-Facing Camera 5.0 MP Rear-Facing Autofocus Camera & Camcorder w/ LED Flash
Camera Resolutions Up to 2560 x 1920 (default)
Full HD Video Recording* Up to 1920 x 1080 (1280 x 720 default)
Audio Recording Record video with or without sound.
Customizable Quick Menu Add most-used Camera and Video Camera features to the viewfinder menu.
Cheese Shutter Voice command picture taking
Time Catch Shot™ Take several pictures before pressing the shutter button.*
Live Effects Capture video with fun and creative editing tools and backgrounds.
* Available on rear-facing camera only
VuTalk™ Draw and share notes in real time between compatible devices.*
QSlide 2.0 Overlay up to two windows with adjustable sizing and transparency on the primary screen for advanced and convenient multitasking.
QuickMemo™ Create and share personalized memos by taking screen captures and adding handwritten drawings or messages.
QuickMemo™ Overlay Hover a QuickMemo note over any screen such as Dialer or Browser and instantly share your personalized memos with every page.
Android Beam Share contacts, web pages, and more via Near Field Communication (NFC).
LG Tag+ Preset, individual phone profiles activated using NFC technology tags**
Web Yes
Polaris® Viewer 4 PC-like office suite app for working on documents, presentations, and spreadsheets
Sprint ID Downloadable packs of applications and content to easily and quickly customize your phone
Connect to Social Networks Send quick updates to Google+, Twitter®***, Facebook®***, and other social networks.
Quiet Mode Specify times to disable notifications for calls and messages.
QuickTranslator Translate sentences and phrases from 44 different languages into 64 native languages.
Home Button LED Specified colored and patterned light provides charging status and notifications such as alarms, calendar reminders, new messages, missed events and others.
* Must initially be established with a contact from the Contacts menu who has a VuTalk enabled device
** NFC tags sold separately
*** Downloaded from Google Play™

What People Are Saying

Rated 5 out of 5 by from Excellent for the price! I've had this LS720 for a year and it's kept up with everything I have needed it to do within the constraints of my budget. The camera features blew my mind with voice activation and the quality is 1 megapixel from being considered professional quality shots. The memory issues are common across this platform because memory is the most expensive you're getting a lot of memory to run the stock apps most people want and know how to Facebook and Google. You have plenty of memory to store a ton of still photos and some long videos. Because this is a NEXT GEN phone...whatever you do not save on your phone you can UPLOAD to a server via EMAIL or whatever! It's sooooo fast! Then you can clear your memory for the next round of pics/vids! However, there is always room for improvement. The voice quality is very poor in this phone at times. I don't know if it's the phone service providers or my phone or the other person not having a good phone! There's a lot of variables involved in cellular phone service and this phone is capable to get things done in several ways. I highly recommend LG products. They're durable and high quality performance. This is my 4th LG phone.
Date published: 2016-04-09
Rated 1 out of 5 by from No Internal Storage makes this phone useless I've had this phone for years, and if you only want to use it to text, make calls, and browse the internet then it works fine. But it has virtually no internal storage and thus can't install more than a few small apps, and external sd cards can only be used for storing audio and image files. So if you want to do anything more with your phone, you're better off buying something else.
Date published: 2016-04-01
Rated 4 out of 5 by from Good Phone! Its really very good. The only problem is low intern memory.
Date published: 2015-09-11
Rated 5 out of 5 by from Linux phone works well! This is a very good Linux operating system and while the internal storage is limited, it can be vastly extended in typical Linux style! Use "Aparted" to partition your SD card, I'm using a 32G card, which I divided roughly in half. Then simply extend the internal partition (internal storage) to the external SD card using Link2SD. I now have about 17G internal storage the rest is SD storage. You can make it any size you like. This is a lot better than having to deal with whatever the manufacturer dictates, and gives you full control of the phone! This is a speedy and reliable phone that is very good for WiFi calling.
Date published: 2015-09-01
Rated 2 out of 5 by from No memory what-so-ever! Buyer beware. This phone only comes with 1.24 gb internal storage which normally with android might not seem like a problem because of SD cards. However, the kernel for this phone won't allow you to use ext formatted SD cards. In laymans terms you're stuck with that 1.24gb of memory and the phone might as well not have an SD card slot. If you plan on using this phone for more than just calls and texts GET ANOTHER PHONE!
Date published: 2015-05-30
Rated 5 out of 5 by from This phone is great! Best one I've had yet! I had trouble with my htc wildfire so I threw it against the wall, and my rumor touch was out of date. So, I made a very smart decision in switching to the LG Optimus F3 Android operated smart phone. I could not be more happy with my choice. It does all that I need from a mobile phone, is reasonably priced, easy to use, and it is not overloaded with tons of features that you will never use! Quality is great, the only downside is that I haven't been able to find a protective case for it yet, so I carry it around in a small Texas Crown whisky bag!
Date published: 2015-02-27
Rated 2 out of 5 by from this phone is complete garbage the hardware and all other parts of this phone is subpar. The screen is passable, the speakers are poor, The camera is what I expect from a pay as you go flip phone, the processor is slow and lagy. And the absolute worst part of this phone is the internal memory, With just base, STOCK, non-removable apps the memory is over 3/4 used up, I can't download ANYTHING. Worst purchase I ever made!
Date published: 2015-01-17
Rated 5 out of 5 by from Great Basic Smartphone This is an excellent and simplistic phone with great battery life and standard performance which makes it for everyone on a budget.
Date published: 2014-12-24
  • 2016-08-25T08:58CST
  • bvseo_cps, prod_bvrr, vn_cps_3.3.0
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_33
  • loc_en_US, sid_MD05052516, PRD, sort_mostRecent
  • clientName_LG
  • bvseo_sdk, java_sdk, bvseo-
  • CLOUD, getReviews, 359ms

We're here to support you with our product.

View LS720 Titanium Silver Product Support

Contact us for any support inquiries.


View Retailers