A top choice for both triathletes and ultramarathoners, the Garmin fenix 7 Sapphire Solar GPS Watch continues to provide top-of-the-line technology now with a solar-powered lens for extended battery life. The new Power Glass™ lens uses solar-powered charging for a major increase in battery life that can sustain use for up to 57+ hours in GPS mode, 18+ days in smartwatch mode, and 136+ hours in Max Battery mode. In addition, runners can control specific settings that impact battery life to get the most out of each charge cycle. As with the previous fenix models, the fenix 7 Sapphire Solar continues to provide all of your favorite elements such as a multisport mode for seamless triathlons, smartphone notifications, an ultra-long battery life, and much more.