Boasting the power of LTE connectivity, the Garmin Forerunner 945 LTE helps you run with confidence. It lets your loved ones follow along in real time on both regular runs and race days. LTE connectivity brings phone-free tracking features right to your wrist and lets your loved ones virtually cheer and send messages while they follow your runs in real time Requires an active subscription plan and connectivity to a Category M1 LTE network Should you need assistance, your watch can send your name and location to your emergency contacts or connect you to the Garmin IERCC, a professional 24/7 response center Assistance Plus is not available in all markets where Category M1 LTE network connectivity is available Improved intervals feature includes a new rest screen, intervals data page and automatic classification that keeps track of your fast and slow times separately Full-color onboard mapping with Trendline™ popularity routing even helps you find and follow the best paths Train smarter with performance measurements adjusted for heat and altitude, track recovery time, predict your race finish time, monitor heart rate underwater and more Track run activity profile measures your running distance more accurately around a 400-meter track Daily suggested workouts give you clear guidance designed to help you get fitter and keep your training balanced Train for triathlons with run, bike and swim metrics plus multisport modes that allow you to easily do brick workouts and tri races Download music from selected services to store on your watch for phone-free listening when paired with compatible headphones Garmin Pay™ contactless payments let you leave your wallet home, too (with supported country, payment network and issuing bank information) Battery life: up to 2 weeks in smartwatch mode, 36 hrs. in GPS mode without music, 12 hrs. in GPS mode with music and 7 hrs. in GPS mode with music and LTE LiveTrack