From scaling the world's tallest peaks. to running longest ultra-marathons. the VERTIX series is for those who demand the best. Our latest generation COROS VERTIX 2S delivers the performance you'll need to help turn your next dream. into reality. Combined with an extensive range of additional features to keep you safe. on course. and performing your best. COROS VERTIX 2S is the perfect choice for the most adventurous sports.