Sync music from select premium streaming services when paired with a compatible smartphone (may require premium subscription), or store up to 1,000 songs on your watch, and connect with headphones (sold separately) enabled with BLUETOOTH technology. For such a lightweight watch, you’ll be surprised by everything Forerunner 945 can track. It features multinetwork (GPS, GLONASS and Galileo) satellite reception to track in more challenging environments than GPS alone. It features estimated wrist-based heart rate and a wrist-based Pulse Ox sensor (this is not a medical device and is not intended for use in the diagnosis or monitoring of any medical condition; see Garmin.com/ataccuracy. Pulse Ox not available in all countries.) which monitors blood oxygen saturation levels to support advanced sleep monitoring and altitude acclimation. Analyze Your Running Form The Forerunner 945 GPS smartwatch also has the tools you need to improve your running form. The watch measures crucial running metrics such as cadence, stride length, ground contact time and balance, vertical oscillation and vertical ratio. These measurements are the key to understanding your form, so you can bring your best on every run and at every race. Your Forerunner 945 can start tracking these metrics with the addition of a compatible heart rate strap or the compact Running Dynamics Pod, which clips right onto your waistband. Safety and tracking features include incident detection (during select activities) which sends your real-time location to emergency contacts through your paired compatible smartphone. See safety and tracking features requirements and limitations.
