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Viper

  • LS840

Key Features

  • Capture, write, and share with QuickMemo™
  • 4G LTE NETWORK
  • 1.2 GHZ DUAL-CORE PROCESSOR
  • 4" CLEAR AND BRIGHT DISPLAY
Express Yourself With QuickMemo™ At 4G Speed

Express Yourself With QuickMemo™ At 4G Speed

Capture any screen image, make notes with your finger, and share online, by text, email and more. Add a personal touch in all you do!

4G LTE NETWORK

4G LTE NETWORK

The LG Viper offers blazing fast data speeds on Sprint's 4G LTE network. Use the LG Viper as a portable Wi-Fi Hotspot and share your 4G connection with other wireless devices.*

4

4" CLEAR AND BRIGHT DISPLAY

The LG Viper comes with a 4" clear and bright 700 NIT display that is great for viewing even in direct sunlight! The capacitive touch screen has a fast and accurate response and auto-adjusts when inside or outdoors.

ECO-FRIENDLY FEATURES

ECO-FRIENDLY FEATURES

The LG Viper builds upon Sprint and LG's commitment to environmental leadership. Thanks to its partially recycled casing materials, packaging and an energy efficient charger, the LG Viper has been certified Platinum by ULE and as a Carbonfree® product from Carbonfund.org.

Google Play™

Google Play™

At Google Play™, you can browse and download thousands of free and paid apps from around the world.

CORNING® GORILLA® GLASS

CORNING® GORILLA® GLASS

The LG Viper comes equipped with Corning Gorilla Glass which is tough and scratch resistant to withstand the unexpected abuses of everyday life.

Snapdragon™ processor by Qualcomm®

Snapdragon™ processor by Qualcomm®

The all-in-one chip designed so you can do more, and recharge less.

Mobile Accessories

Mobile Accessories

Get all the fixings for your LG mobile phone

Technical Specifications
Technology CDMA
Music Player MP3, AAC, AAC+, WMA, and WAV Formats
Speaker Phone One-Touch Speakerphone
Data Transmission EVDO Rev. A, LTE
Bluetooth Version: 3.0
Display 16.7M Color TFT, 480 x 800 Pixels, 4.0" (WVGA)
Screen 4" Capacitive Touchscreen
Processor 1.2 GHz Dual-Core Processor
Standard Battery 1,700 mAh
Frequency 1.9 GHz CDMA PCS, 800 MHz CDMA
Dimensions 4.59" (H) x 2.44" (W) x 0.46" (D)
Weight 5.0 oz.
Talk Time up to 7 hours*
Internal Memory 2 GB internal + 4 GB microSD card
microSD™ Memory Slot up to 32GB memory card**
Google Wallet Powered with NCF technology
UL Environment Platinum Certified Packaging is 100% recyclable, contains up to 87% post-consumer paper, is printed with soy ink, and finished with glue-less construction. The device casing is made of 50% recycled plastic and is RoHS compliant. Comes with energy efficient charger with a 0.03 no-load power rating.
Box 50 GB of free cloud storage ***
* Certain features may use more power and cause actual time to vary.
** 4 GB microSD card included. Additional memory cards sold separately.
*** The 50GB of free storage is available to the LG Viper and other LG devices until 9/30/2014. Some features are available with Box Business and Enterprise only. Please visit http://www.box.com/pricing for more information. Based on monthly cost of $20 for 50GB of Box cloud storage.
Specifications
Form Factor Bar
Technology CDMA
Processor 1.2 GHz Dual-Core Processor
Data Transmission EVDO Rev. A, LTE
Dimensions 4.59" (H) x 2.44" (W) x 0.46" (D)
Weight 5.0 oz.
Display 16.7M Color TFT, 480 x 800 Pixels, 4.0" (WVGA)
Touch Screen 4.0" Corning® Gorilla® Glass Capacitive Touchscreen
Talk Time Up to 7 hours*
Internal Memory 2 GB internal + 4 GB microSD card
MicroSD® Memory Slot up to 32GB memory card**
* Certain features may use more power and cause actual time to vary.
** 4 GB microSD card included. Additional memory cards sold separately.
*** The 50GB of free storage is available to the LG Viper and other LG devices until 9/30/2014. Some features are available with Box Business and Enterprise only. Please visit http://www.box.com/pricing for more information. Based on monthly cost of $20 for 50GB of Box cloud storage.

What People Are Saying

Rated 3.3 out of 5 by 43 reviewers.
Rated 1 out of 5 by One Major "deal-breaker" Problem The battery is close to worthless. It must be charged multiple times daily and I don't use the phone more than once or twice a day. I do not use the data so that's not the problem. I text, perhaps, twice a day. I ordered another battery and it is also close to worthless. If the battery does not work, the phone is nothing more than a weight in my pocket. I now carry the spare battery in my purse in case I have an emergency. The features of the phone are fine, but what's the point if I can't use them because of a dead battery? May 28, 2014
Rated 1 out of 5 by I have never been more disappointed. Upon receiving the LG Viper, I was greeted with an average-looking smart phone. It seemed to have all the bells and whistles that one would expect. I was dead wrong. Within minutes of using this device, the truth was realized - the LG Viper is a substandard cell phone. Never before have I used a product that freezes more constantly, has so much trouble accessing the internet, and fails to recognize touch screen activity. These are only the more prominent issues. There's also the factor of a poor quality camera (both front and back view), among other things. Connecting to 3G and 4G services is troublesome and does not always work as it should. Even when connected to a strong Wi-Fi signal, extremely slow internet is observed. I could get into all the problems that I've had with this phone, but it would be a waste of time. The bottom line is that the LG Viper is one of the worst smart phones in the market. May 8, 2014
Rated 1 out of 5 HATE IT It may seem nice, but It constantly Freezes. Sometimes the Phone Update un-wanted things. And the Browser it REALLY slow. It Also Dies Quick. LG's are really not a good product anymore. Cant wait to get my Galaxy. April 26, 2014
Rated 2 out of 5 shameful you get the phone thinking its nice because the front camera and the features they tell you about but it really isnt all that. this phone is for an adult that only really texts and talk and may play games and have a few social network apps. if you use the phone a lot, the screen starts to freeze, and then i have to restart. it would even turn on and off by itself. the battery doesn't even last that long. and the front camera isnt that good, the memory doesnt last that long. December 16, 2013
Rated 1 out of 5 by The worst of the worst This phone is the reason you must do your research before purchasing a product. Every problem on every review I had with this phone. It is definitely not the phone that you want to get stuck in a contract. And the sad thing is it has one best displays for 4" phones. NO, ICS dose not help the phone either. Oh, I manage to drain the battery in 96 minutes! November 6, 2013
Rated 5 out of 5 by Great Phone My wife and I both have the LG Viper phones. They are easy to use and reliable. We have had LG phones before (Olympus) and loved them. When it was time to upgrade we chose the Vipers, and glad we did October 23, 2013
Rated 1 out of 5 by Horrible. its like when i first got this phone i thought this phone was the best, but then the tables turned and next thing i know everything started to freeze when i use instagram and writing a message to someone the status bars will go away and the 3G will come on, i live in a 4G area why is it going to 3G? i don't live underground. my calls will be dropped left and right like 1 hours and then my battery life dies and it charges for 2 hours and then died fast. i am not gonna pay so much money for one phone with bad working specs. this phones needs some improvement. October 22, 2013
Rated 1 out of 5 by never purchase a LG again I have had 3 replacement phones from Sprint since I received my brand new LG Viper 4G LTE. I will never buy another LG again the worst experience in my life. Phone shuts down on its own, screen freezes, phone heats up, several replacement batteries, and the list goes on and on... May 23, 2013
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