OS Details

LG Watch W7 has been launched in October 2018.
LG Watch W7 have Android Wear OS 2.0

Screen Dimensions

LG Watch W7 screen size is 1.2 inch with ~ 45.8% body ratio of actual device size. Physical dimensions for LG Watch W7 device is 1.79 x 1.75 x 0.51 INCH or ( 45.5 x 44.5 x 13 MM).

Displaying of Units are in this order "Height x Width x Thickness"

Screen Pixel Density and CSS Pixel Ratio

"Pixel" is smallest unit/element of any display.

The total number of pixels that fit into an inch is referred to as "Screen Density" or "Pixel Density" and it measured as "Pixels Per Inch".
Pixel Desnsity have limits to display Pixels Per Inch depends on different screen sizes. When number of pixels per inch increases than it's screen-size limit, the Display resolution will increase but actual device width/height in pixels remain same. Actual device pixels are known as Device Independent Pixels or CSS Pixel Ratio.

LG Watch W7 resolution is 360 x 360 ^PX with ~ 300 pixel desnsity.
LG Watch W7 viewport size is 240 x 240 ^PX with ~ 200 actual pixel density, which means it have 1.5 hdpi display pixel density.

Screen Resolution and Viewport

The sum of pixels which are displaying on a device is called as "Screen Resolution". and sum of actual pixels of any device is reffered to as "Viewport".

LG Watch W7 have 1.2" physical screen size and its resolution is about 360 x 360 Pixels with approximately 300 PPI pixel density. LG Watch W7 has viewport size 240 x 240 Pixels and its pixel ratio is about 1.5.

For better understanding screen actual sizes, viewport sizes, display resolution and about their density click here.

CSS Media Queries

LG Watch W7 Media Queries

@media only screen and (min-width: 240px) and (max-width: 319px) { /* Your Styles... */ }

LG Watch W7 Min-Width Media Queries

@media only screen and (min-width: 240px) { /* Your Styles... */ }

LG Watch W7 Min-Height Media Queries

@media only screen and (min-height: 240px) { /* Your Styles... */ }

LG Watch W7 Min-Width Media Queries

@media only screen and (max-width: 240px) { /* Your Styles... */ }

General Media Queries for Smart Watches

@media only screen and (max-width: 319px) { /* Your Styles... */ }

In current era smart watches have no viewport size greater than 319px. So 319px is choose as max-width, also it will not disturb your styles for any kind of mobiles.

Retina 2x Media Query for Smart Watches

@media
  only screen and (-webkit-min-device-pixel-ratio: 2),
  only screen and (   min--moz-device-pixel-ratio: 2),
  only screen and (     -o-min-device-pixel-ratio: 2/1),
  only screen and (        min-device-pixel-ratio: 2),
  only screen and (                min-resolution: 192dpi),
  only screen and (                min-resolution: 2dppx) { 
    /* Retina styles here */
}
                                

LG Watch W7 Specifications

• Launch Date October 2018
• Android Wear OS 2.0
• Physical Screen Size 1.2 INCH
• Resolution 360 x 360 PX
• Viewport Size 240 x 240 PX
• Pixel Density 300 PPI
• Device-Independent Pixels 200 PPI
• Pixel Ratio 1.5 hdpi
• Width 360 PX
• Height 360 PX
• Device Width 240 PX
• Device Height 240 PX
• Dimensions 45.5 x 44.5 x 13 mm (1.79 x 1.75 x 0.51 in)
• Weight 79 g - 2.79 oz