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LG Optimus F3 Cell Phone LG720ABB-LG720ABB
  • LG Optimus F3™ Front Thumbnail
  • LG Optimus F3™ Three quarter skew right Thumbnail
  • LG Optimus F3™ Back Thumbnail
  • LG Optimus F3™ Side Thumbnail

LG Optimus F3™

Stay in the game with the LG Optimus F3™. This 4G LTE smartphone lets you update your status, message friends and share screenshots all super-fast. The 1.2 GHz dual-core processor offers the speed you want, the long-lasting battery has the power you need.

One month FREE service*
That's a $50 account credit for new customers
Learn more about the Free Month of Service
Free month is equal to one month on the $50 Monthly Unlimited Select Plan. All Monthly Unlimited Select plans are eligible. Limited time only. While supplies last and only on select devices from boostmobile.com. Restrictions apply.
$129.99 Retail Price
$30.00 Promotional Discount
Add to cart
$99.99
New Customers Call
Promotional pricing available only for select phones directly from boostmobile.com. Limited time only, while supplies last. Android™ is a trademark of Google, Inc.

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LG Optimus F3™ Features

Android™ 4.1 (Jelly Bean)

Jelly Bean builds on the most-loved features of Android - easy multitasking, customizable home screens and deep interactivity.

Dual Mode 3G/4G LTE

Switch seamlessly between Sprint's reliable 3G nationwide network, which reaches more than 276 million people, and Sprint's blazing-fast 4G LTE network, reaching 340 million people and counting. Check coverage.

4-inch display with Corning® Gorilla® Glass 2

Experience videos, apps and pictures like never before. Everything's better on the big screen - and this scratch-resistant touchscreen delivers.

5 MP LED camera

Score the perfect shot with features including panorama. Take all the videos and selfies you want with the full HD (1080p) camcorder and front-facing 1.3 MP camera.

1.2 GHz dual-core processor

Get the complete Internet experience in a flash.

QuickMemo™

Snap a shot of your screen, take notes, doodle and more.

Qslide 2.0™

View multiple screens at the same time and adjust window sizes to switch between apps in a flash.

Long-lasting battery

Enjoy up to 16 hours of talk time thanks to the long-lasting 2,460 mAh Li-ION battery.

HD Voice††

Experience crystal-clear call quality with reduced background noise while calling another HD Voice-enabled phone on the Sprint network.

Mobile ID

Make your phone a reflection of who you are. Choose ID packs featuring apps, ringtones, wallpaper and more.  Learn more

Mobile Hotspot Capable

Turn your phone into a Wi-Fi® hotspot for up to five devices. Learn more.

Environmental Certification

Platinum certified by the UL Environment, this phone contains environmentally preferable materials with a minimal environmental impact. More info.
Show Full Features
  • 3-way calling
  • 3.5mm headset jack
  • 5MP BSI camera
  • Accelerometer
  • Access to Boost Zone
  • Access to Gmail® and Google Talk™
  • Access to Google Play™
  • Audio Recorder
  • Calendar
  • Call waiting
  • Caller ID
  • Multi language settings
  • Full HD (1080p) video
  • Music player
  • Nationwide Sprint® 3G Network and Nationwide Sprint® 4G LTE Network
  • One-click access to Facebook®, Twitter® and more
  • Picture and video sharing
  • Portrait to Landscape auto-rotate
  • QuickMemo™
  • Speakerphone
  • Stereo Bluetooth®
  • TTY mode
  • Vibrate mode
  • Virtual QWERTY keyboard
  • Voicemail
  • Wi-Fi® enabled

LG Optimus F3™ Specs

Size & Weight

  • Height 4.57"
  • Weight 4.0 oz
  • Width 2.44"
  • Screen Size 4" Touchscreen
  • Depth 0.40"

Battery

  • Talking Time 16 hrs
  • Battery Type 2460 mAh Li-Ion Battery
  • Removable Yes

Memory

  • 1 GB RAM/4 GB ROM
    Portion of memory occupied by existing content

Processor

  • 1.2 GHz dual-core processor

Operating System

What's in the box

  • • LG Optimus F3 phone
  • • 2460 mAh Li-Ion Battery
  • • Micro USB Cable with Charger
  • • Getting Started Guide
    Whats included with the LG Optimus F3™

    User Guides & Device Support

    Want to know everything there is to know about this phone? Learn everything, from setting up your email to managing all of your games and applications.

    Device Support >

    Monthly Unlimited Select

    How it works

    • Order by phone,
      online or in a store.
    • When you've got your phone,
      activate a no-contract plan online.
    • Keep your number or choose
      a new one. Enjoy.

    All new phones include

    • No Annual Contract Plans
    • FREE Shipping
    • FREE Activation
    • 14-Day Return Policy
    • Your current phone number
      (if you want it)

    Order by phone

    Need help picking a
    phone or plan?
    Call us now

    1-855-348-7299

    ULE Environment Score:


    Boost Mobile devices are assessed and rated on their sustainability by UL Environment. The score is based on UL 110 - the sustainability standard for mobile phones. We are the only wireless carrier to take all its devices through the independent UL Environment certification process. To be certified, phones must meet a set of prerequisites and then earn points based on additional sustainability criteria. The table below reflects the additional criteria scoring above the prerequisites.

    More info about ULE certification.

    • Materials
    • Energy & Performance
    • Health & Environment
    • End-of-Life Management/Life Extension
    • Packaging
    • Manufacturing & Operations
    Limited time offer.
    While supplies last, valid on boostmobile.com only.

    Offer valid 8/18-10/31/2014 at boostmobile.com, while supplies last & only for new monthly activations with purchase of devices with SRP of $99.99 and up from boostmobile.com. $50 credit offer limited to purchase of phones from boostmobile.com. Device must be activated by 11/16/2014 and requires first month's payment; account credit applied within two weeks after activation & payment. Customers must activate on a Boost monthly plan ranging from $35-$60 to be eligible. Additional terms & restrictions apply. Boost has no annual contracts. For details visit boostmobile.com/freemonth for details.

    Certain features may use more power and cause actual time to vary. Coverage and services not available everywhere. Availability varies. Additional terms and other restrictions apply. Optimus F3 is a trademark of LG Electronics Inc. All other marks are the property of their respective owners.

    ++HD Voice capability requires a call between two Sprint HD Voice-enabled devices in an upgraded area within the Sprint network.