Stay charged up for any adventure with solar power As our first watch to offer solar charging, f?nix 6X Pro Solar puts no limits on how far you can go. Its 1.4? Power Glass™ lens uses sunlight to extend battery life for off-grid adventures. Sunlight gives your watch a free energy boost, extending time between charges Dynamic PacePro™ feature helps you run smarter over various types of terrain Preloaded ski maps for more than 2,000 resorts around the world Power manager feature shows how adjusting settings can extend battery life Wrist-based heart rate1 and Pulse Ox2 sensors add insight to your fitness activities Sync your favourite streaming services and listen to music without your phone