COROS APEX 4 is here - What's NEW and is it worth the upgrade from APEX 2?

The all new ​COROS APEX 4... We're unboxing this most recent addition to the Mountain Sports/trail running range of GPS watches from Coros and putting it head-to-head against the APEX Pro 2 to see if the upgrades are truly worth the money. We cover the display, lightning-fast maps, built-in speaker/mic, and the crucial question of GPS battery life. Don't upgrade before watching this complete, in-depth comparison. How do these 2 watches compare? Watch now to find out!