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
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  • Screen Size
    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 5 out of 5 by from Great phone Inexpensive, easy to use phone. Love it!
Date published: 2020-02-18
Rated 4 out of 5 by from Nice design good screen and lightweight good phone for starters .
Date published: 2020-02-01
Rated 5 out of 5 by from Lg K40 Good phone for the price.
Date published: 2020-02-01
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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.

what is the warranty on the phone? LG K40 and Galaxy A10E

Asked by: steve214
The LG K40 comes with a 1 year limited warranty. ^CP
Answered by: LGAnswers
Date published: 2020-01-15

Why are all my emoticons female and not male??? I hate this about this phone. How can I change this?!! Its driving me crazy to the point I will sell it and never recommend this phone to any one.

Asked by: Muhrdoc
We hate to hear that, 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: 2020-01-11

How to remove the battery on my LG k40

Asked by: betthy
The LG K40 has a 3,000 mAh Non-Removable Battery.
Answered by: ChrisPSM
Date published: 2020-01-07

Why does my phone go black when I am on the phone even a short time?

Asked by: Barbara K
David: It has a 15 min. setting but go black after 30 seconds? You can't go back to the screen? Why? is something wrong with my phone
Answered by: Barbara K
Date published: 2020-01-01

Is the LgK40 a smart phone?

Asked by: Barbara K
Hi Barbara K, Yes, it is. David, AT&T Community Specialist
Answered by: ATTDavidCS
Date published: 2019-12-30

Does this phone come with a screen protector ?

Asked by: bigdog22
No, a screen protector is not included with the K40. ^CP
Answered by: LGAnswers
Date published: 2020-02-19

Is there a way this phone will connect to my TV? Maybe thru a cord adapter that hooks to the phone & to a HDM1 port and/or USB port? My prev phone had that ability and I miss not having that ability now with my last phone purchase.

Asked by: Sherry B
For casting, we suggest using a Chromecast type device connected to your TV. ^CP
Answered by: LGAnswers
Date published: 2020-02-10

is it water resistant?

Asked by: RobinYN
Hi @RobinYN, It is not. ChrisZ, AT&T Community Specialist
Answered by: ATTChrisCS
Date published: 2019-12-06
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