This is a watch face for outdoor activities like hiking or climbing.
The current height can be calibrated by tapping to the lower or upper middle of the display.
This needs to be done, because the current air pressure depends on the weather.
The watch face was designed to be readable outdoors in the sun. It was optimized to
increase the battery lifetime, essepcieally on watches with OLED Displays like the LG G Waatch R.
This watch face doesn’t save or transmit any data.