Founded in 1989 in Kansas, Garmin’s first customer was the U.S. Army. At that time, Garmin produced only navigational devices, but today, the company makes a variety of smartwatches and other gadgets that have become favorites of athletes and outdoorspeople. With a Garmin, you can track your fitness levels by monitoring your heart rate, oxygen level, respiration, sleep quality and more. The watches with compass and altimeter functions are favorites among hikers and climbers, while runners love the distance and pace functions. Some models come with apps for yoga, Pilates and other forms of exercise. While Garmin watches are popular, the company is still true to its roots, producing a number of GPS devices as well as a satellite communicator designed for backcountry campers and explorers who need to stay in touch outside of cell-tower range. Garmin also makes a series of dog-training collars as well as devices for hunters and tactical operatives aiming to improve their shots.