- Analysis by KJ David
Released alongside its K50 sibling and Q60 cousin during the MWC 2019, the LG K40 caters to those eying a toughened middle-class wide-screen phone. Unsurprisingly, for a phone within its price group, the K40's cons include some unambitious hardware specs, namely, a 2GB-only RAM 
and a Helio P22 eight-core 2GHz processor that won't be putting it alongside the best eight-core models any time soon, most of which run on roughly-2.5GHz engines.
Another slight flaw lurking within its list of pros and cons is the K40's 32GB-only internal memory , although we find it easy to forgive, seeing that it is accompanied by a monstrous 2TB memory card slot 
. As for stamina, although its 3000mAh raw power capacity sounds tolerable, this K-series model scores a dismal 100-hour-only standby time and an 8-hour-only talk time , both being significantly lower versus the corresponding averages when we were reviewing its features.
Unlike a lot of its mid-end contemporaries, the K40 boasts a military-grade MIL-STD-810 rugged certification , which, in essence, gives it native resistance to temperature extremes and accidental drops, among others. Don't forget to pop open Phonerated's list of the best rugged phones on the market.
Its other selling points include a 16-megapixel f/2.0 main camera that features AI CAM , which analyzes the subject's features and recommends the appropriate set of optimizations. It also assists in online image-searching through its Google Lens integration. Up front, it features an 8-megapixel selfie cam with a dedicated front-firing LED flash and Gesture Shot.
Adding to its multimedia features is the DTS:X 3D Surround Sound audio technology , which is a close competitor to the Dolby Atmos audio system offered by some other multimedia smartphones. Tying its pros and cons together is a 5.7-inch FullVision display whose 18:9 aspect ratio mimics those of some higher-specked phablets, although it sticks to a low-key 1440 x 720 HD+ definition .
Long story short, LG's K40 is a feasible choice for shoppers who want a mid-range Android that's physically tougher than many others.
On-paper Review score: 
The K40's 480 minutes of talk time are much lower than what you usually see.
It's disappointing that we could not find its weight information.
- Recommended alternative: Photo gallery of the latest slim phones
It is trumpeted as more resistant to water, dust and shocks.
- Related link: Photo gallery of the latest rugged phones
Its processor speed of 2GHz combined with 8 cores is part of the fastest.
- See also: List of the latest octa-core smartphones
Use the LG K40 to buy things with your phone at NFC-compatible stores
The screen is big, making it a phablet: 5.7 inches and a resolution of 1440 x 720 pixels means about 13.01 square inches and an image sharpness of at least 282 dots per inch (DPI)!
The K40 is not sold with a memory card but it can accept up to 2000GB in memory expansion, which is convenient to store pictures and video clips taken with the built-in 16-megapixel camera.
A 16-megapixel camera offers a lot more pixels than most other phones. It also sports these features: Automatic/Manual Mode, Google Lens, Food Mode, HDR, Geo-tagging, Self timer, Burst, Cheese Shutter.
LG says that the LG K40 provides 480 minutes of talk time. If it lives up to that claim, it may be convenient.
The selfie cam resolution seems just about average.
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