LG K40™ | AT&T
  • 5.7" HD+ FullVision™ Display
  • 13MP Autofocus Rear Camera
  • 5MP Front-Facing Camera with LED flash
  • Rear Key with Fingerprint Sensor
  • 3,000 mAh Non-Removable Battery
LG K40™ | AT&T
Where to Buy


  • Screen Size
    5.7 inches
    Screen Resolution
    1440 x 720 pixels
  • Battery Capacity
    3,000 mAh Non-Removable
    Rear Camera Resolution
    13 MP
  • Front Camera Resolution
    5 MP
    2 GB RAM
  • Storage
    32 GB (up to 15.2 GB usable)*
  • *
    Usable memory varies depending on software version and settings.


  • Display
    5.7" HD+ FullVision™, 1440 x 720 pixels, 18:9 Aspect Ratio
    Android Pie 9
  • Processor
    MediaTek Octa-core (Up to 4 x 2.0 GHz + 4 x 1.5 GHz)
  • Frequencies
    GSM 850/900/1800/1900 MHz; UMTS/HSPA/HSPA+ B5 (850), B4 (1700), B2 (1900); LTE Bands 2/4/5/12/14/29/30/66
    6.02" (H) x 2.83" (W) x 0.32" (D)
  • Weight
    5.11 oz.
    Hearing Aid Compatible (HAC)
    M4/T3 Rating
  • Battery Capacity
    3,000 mAh (Non-Removable)
    Talk Time
    Up to 11 hours (VoLTE)*
  • Standby Time
    Up to 428 hours*
    Internal Memory
    32 GB (up to 15.2 GB usable)**
  • RAM
    2 GB
    External Memory
    Up to 2 TB
  • *
    Actual battery time may vary depending on network connectivity and application use.
    Usable memory varies depending on software version and settings.


  • UPC

What people are saying

Rated 4 out of 5 by from Cannot install to SD card I Love the size of the Phone, and the look. However my issue is that you cannot install apps to the SD card
Date published: 2019-11-02
Rated 5 out of 5 by from Nice Nice phone to use for work.
Date published: 2019-10-25
  • y_2019, m_11, d_19, h_18
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.3-b1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_2
  • loc_en_US, sid_MD07000392, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_lg
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 3ms


Ask your questions. Share your answers.
Please review the detailed product information and help guides in the
Product Support section for this product prior to posting a question.

the phone wont let me turn on usb tethering how do I fix this

Asked by: paleman213
We hate to hear that you are having an issue with your phone tethering, but would love to be able to help. We would be happy to see what's going on. Drop us a line on Twitter at @LGUSSupport or on Facebook https://www.facebook.com/LGUSA/ so we can get more info and see what we can do. ^CP
Answered by: ChrisPSM
Date published: 2019-11-07

Does this phone have maps just like a GPS, I am trying to find one for my husband also what is the total retail price to buy it online

Asked by: Harley5964
It does have a Map app @Harley5964. Our price is $179.99 as listed on our page. ChrisZ, AT&T Community Specialist
Answered by: ATTChrisCS
Date published: 2019-11-04

Where is the microphone located on the LG K40?

Asked by: James has
The K40 has a microphone on the bottom of the device.
Answered by: ChrisPSM
Date published: 2019-10-23
  • y_2019, m_11, d_19, h_18CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.3-b1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_3
  • loc_en_US, sid_MD07000392, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_lg
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 3ms
Compare (0)