This is an ultra-light, new-generation GPS running watch with integrated barometer that equips serious runners with advanced training tools to improve running economy and performance. Make every run a good run. MIP (memory-in-pixel) reflective color display allows for maximum readability in bright conditions. New CPU gives you a smoother, more powerful UI experience and performance. One full charge gives you power up to one full week. Polar Charge 2.0 magnetically snaps onto your watch and charges in the time it takes for you to get your gear on. Target HR zones allow you to monitor the level of effort required for different intensities based on your heart’s beats per minute (bpm). 41g, thin, easy to use, aesthetically pleasing, and made from quality materials.