With the Vertix 2S GPS Adventure Watch, COROS brings you adventure inspired colours and advancements to existing features. No matter where your pursuits take you – the Vertix 2S, will be there every step of the way. Upgrades from the Vertix 2 include Upgraded HR Sensor with 5 LED's and 4 photodetectors SpO2 (Blood Oxygen), a nylon and a silicone band comes included, there is a new satelite chipset configuration. Features All-new GPS system with dual-frequency satellite tracking Extended battery life for weeks of continuous training Next-generation optical heart rate sensor 10 ATM water resistance for open water activities Advanced global offline maps with turn-by-turn directions Always-on 1.4" sapphire touchscreen and titanium bezel Backed by the COROS training system to achieve your goals Wide range of activity modes and third-party integrations Two watchbands and one charging cable are included