Polar is a Finnish company that manufactures sports training computers, particularly known for developing the world's first wireless heart rate monitor. The company was founded in 1977 and is headquartered in Kempele, Finland. Polar's products are used by athletes and fitness enthusiasts worldwide to monitor their heart rate, track their workouts, and improve their performance. The company's product line includes heart rate monitors, GPS sports watches, and fitness trackers. Polar has a strong presence in the sports and fitness industry and is known for its innovative products and technology.