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3.9 | 22 Reviews

LG K40™ Metro by T-Mobile

LG LMX420MM

Features

  • 5.7" HD+ FullVision Display
  • 13MP PDAF Rear Camera with Fast Catch
  • 5MP Front-Facing Camera with Front Flash Light
  • Rear Key with Fingerprint Sensor

See More

 
PREMIUM EVERYWHERE YOU LOOK

An expansive, vivid display turns everything you see into a cinematic experience, and 2.5 D Arc Glass is engineered to fit beautifully inside your hand.


CAPTURE LIVE IN MOTION

Easily share moments with friends and followers. An intelligent 13 MP camera with Fast Catch ensures high-quality pictures that are sure to get noticed.


OUTLAST AN EVENTFUL DAY

Go wherever life takes you with a phone that's built to keep up.

Features

  • 5.7" HD+ FullVision Display
  • 13MP PDAF Rear Camera with Fast Catch
  • 5MP Front-Facing Camera with Front Flash Light
  • Rear Key with Fingerprint Sensor
  • 2,890 mAh Non-Removable Battery
SUMMARY
Screen Size
Screen Resolution 1280 x 720 pixels
Battery Capacity 2,890mAh Non-Removable
Rear Camera Resolution 13 MP
Front Camera Resolution 5 MP
Processor 1.8 GHz Octa-Core Qualcomm Snapdragon™ SDM450
Memory 2 GB RAM
Storage 32 GB ROM (up to 17.9 GB usable)**
Carrier Metro by T-Mobile
TECHNICAL SPECIFICATIONS
Display 5.7" HD+, 720 x 1440 pixels
Platform Android™ 9.0 (Pie)
Processor
Technology GSM, UMTS, LTE
Frequencies GSM 850/900/1800/1900MHz; LTE Bands B2/4/5/7/12/25/26/41/66/71
Dimensions 6.02" (H) x 2.83" (W) x 0.32" (D)
Weight 5.1 oz.
Hearing Aid Compatible (HAC) M3/T3 Rating
Battery Capacity 2,890mAh (Non-Removable)
Talk Time Up to 12 hours*
Standby Time Up to 19 days and 10 hours*
Internal Memory 32GB (17.9GB usable)**
RAM 2GB
MicroSD™ Memory Card Support Up to 2TB***
* Actual time may vary depending on network connectivity and application use.
** Usable memory can vary depending on software versions and settings.
*** Memory cards sold separately.
UPC
UPC 610214660732

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

3.9 out of 5

77% of reviewers recommend this product.

4 Stars

K40

Lilmama73 12/27/2020

I have to say that Im happy with my k40 do I love it more than my k30? Not for real The k30 is a little bigger as far as the screen it also allows you to store games on your SD card. The k40 does not. But overall its still a decent phone to have
Originally posted on lg.com

Yes, I recommend this product

Quality

 
5 Stars

Awesome phone

Ash1228 12/21/2020

So happy I decided to go with lg . It has alot of display features and a very good camera
Originally posted on lg.com

Yes, I recommend this product

Quality

 
1 Stars

This could be the best phone but isnt

MelvinG24 12/20/2020

I just had 6 months with the phone just before I ended up buying a new one. - Good things about this phone: Is cheap cool features great display and battery. - Bad things about this phone: Volume buttons stop working after a few months. Very very very bad performance super slow. The phone was so slow that it took from 2min to 5min to open the camera and take a single pic. It was so slow that every time I was typing it types more characters because the phone ran so slow that it didnt catch when I release the key. The phone unlock was very frustrating because it was so slow that every time I pressed the power button to light up the display it took so long that I always ended up thinking that I havent press it but when I pressed it again it was just to see the display flash and go back to dark.
Originally posted on lg.com

No, I do not recommend this product

Quality

 
5 Stars

I Love LG Phones

Shawnay 12/17/2020

I have previously purchased other name brand phones but now I will only purchase LG phones. I like that it is not a learning curve and its ease of use across the entire line.
Originally posted on lg.com

Yes, I recommend this product

Quality

 
5 Stars

Personal..Everything

Eiuol 12/15/2020

I have had this phone now since April 2020 an it is still alive and well running. Even though the other day an accident happened and my screen cracked the phone keeps on going. Ii I fill up the phone with so much music and pitcures of my cats and the phone keeps all my files nice and secure. The internal files are excellent except for the likes of Facebook i am not into social media. And very helpful with aspects of every day life.
Originally posted on lg.com

Yes, I recommend this product

Quality

 
4 Stars

Good phone for price

Wolf 11/6/2020

I had it now for a year and in general Im ok with it. The camera is annoying I missed many great shots because the stupid thing simply wont fire even in decent lighting conditions. But considering the price its a useable phone.
Originally posted on lg.com

Yes, I recommend this product

Quality

 
2 Stars

shut down

dennis 10/28/2020

so i bought this phone awhile ago but i now have a new because when i went to download my software update i set it down and went to bed the next morning i went to turn it on and it stopped working i only got it 3 weeks before and never took it outside and i still dont know what happened when i turn it on it does the metro noise but nothing show s on the screen . but well i had it it was a pretty good phone just a little slow but thats the 2 gigs of ram otherwise good phone
Originally posted on lg.com

Yes, I recommend this product

Quality

 
5 Stars

This LG Phone Is Awesome

VooDooQueen420 7/5/2020

I absolutely LOVE this phone and LG Products I love how it is easy to use and the way it performs...
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Quality

 
4 Stars

Great little old ladyphone

Michaeleen 6/12/2020

I am a 73 year old woman but Im not an old lady mind you who is not very good with technology. But when I got my LG k-30 I was really impressed with how easy it was to learn the software. When it died I upgraded to the K40 and was surprised to learn that its even simpler to use. The only two recommendations I have: First please put the comma on the original keyboard so I dont have to go digging for it. Second in texting please put the word draft in red so I remember to go back to finish it. I know that these are Cadillac Complaints but... You asked for my feedback So please know that I am hooked on LG - but it would be nice to have these two little things. Thank you for making a great product
Originally posted on lg.com

Yes, I recommend this product

Quality

 
4 Stars

Good little phone

AquaRose28 5/26/2020

The only thing i have negative to say is the keyboard is super slow to learn my typing speed and the fingerprint scanner is finicky. Other than that its a wonderful phone.
Originally posted on lg.com

No, I do not recommend this product

Quality

 
1 Stars

Pain from day 1

milapav 12/9/2019

I was the LG phones afficinado for almost 10 years until purchased LG K40 model two month ago. Extremely fragile sceen non-water resistant to say a few.
Originally posted on lg.com

No, I do not recommend this product

Quality

 
5 Stars

Still need privacy

Flip80 12/4/2019

I would like to learn more security and privacy because I believe someone has hacked me once on this phone
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Quality

 
3 Stars

Fingerprint sensor

Southpaw43 12/3/2019

I recently upgraded from the K20+ which was an amazing phone. The k40s fingerprint sensor sucks
Originally posted on lg.com

No, I do not recommend this product

3 Stars

Fingerprint sensor

Southpaw43 12/3/2019

I recently upgraded from the K20+ which was an amazing phone. The k40s fingerprint sensor sucks
Originally posted on lg.com

No, I do not recommend this product

4 Stars

Battery great w/ heavy power usage

Terrible_Ant22 11/22/2019

Almost 2 months old and is great except it lags and cant keep up with my fingers even as I write this the LG keyboard is satisfactory and Gboard is unusable and I Use SwiftKey to but overall I am satisfied I watcy movies and shows but download rather then stream it and Im looking for a to upgrade around Christmas
Originally posted on lg.com

Yes, I recommend this product

Quality

 
5 Stars

Excellent phone for the price

DEP63 11/19/2019

No longer do I have base my phone usage on being near a charger. This device chargers very fast and last throughout the day with heavy data usage.
Originally posted on lg.com

Yes, I recommend this product

Quality

 
5 Stars

Loretta72 11/9/2019

Great pics. sounds great loud charges fast it takes a while before u have to charge again
Originally posted on lg.com

Yes, I recommend this product

Quality

 
5 Stars

Loretta72 11/9/2019

Great pics. sounds great loud charges fast it takes a while before u have to charge again
Originally posted on lg.com

Yes, I recommend this product

Quality

 
4 Stars

Good

JCrowe 9/19/2019

The phone its self is great. I love it but metro an its service make the phone look bad an not up to par ...stop saling good phones tto bad companys
Originally posted on lg.com

Yes, I recommend this product

Quality

 
5 Stars

My LG K40 phone

juliew953 9/6/2019

Love this phone Better than the K30 Its fast has a great camera and the speaker works tremendously well A very beautiful phone as well
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Quality

 
3 Stars

only a week do far so good

tigers breathe 9/3/2019

fits good in my hand no stopping lots is space occasionally slows when Im in my backyard. Not as loud as I prefer.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Quality

 
4 Stars

great features

Jan doe 9/1/2019

I just bought it two weeks ago love it great design easy to learn how to use
Originally posted on lg.com

Yes, I recommend this product

Quality