
These are our expectations for its successor – the Forerunner 955. The 945 is one of the most popular devices in the Forerunner range. Run your heart out with a watch that's got the power to keep up.This is an updated version of an article that we published at the start of this year. This stat measures your exercise volume from the last 7 days and compares it to the optimal range for your fitness and recent training history. See how your workouts influence the development of endurance, speed and power with aerobic and anaerobic training effect feedback. This metric evaluates your recent exercise history and performance indicators to let you know if you’re training productively, peaking or overreaching. This wrist-based sensor estimates your body's blood oxygen saturation4, which can help gauge how your body is absorbing oxygen - especially while you sleep. This metric even accounts for changes in performance that could be caused by heat or altitude. Train smarter with VO2 max, an indicator of how you can expect to perform. When used with a compatible accessory, Forerunner 245 measures crucial running metrics such as cadence, stride length, ground contact time and balance and more. Track where you run, and get accurate stats, including distance, pace and intervals. Gauge how hard your heart is working during activities, even underwater. Get heart rate data3 along with alerts if your heart rate stays high while you're at rest.


Switch up your workout routine with activity profiles for cycling, pool swimming, indoor rowing, elliptical, stair-stepper and more.

These adaptive training plans feature guidance from expert coaches and free training plans that adapt to you and your goals. It even gets to know you, mile after mile and song after song. This GPS running smartwatch does the thinking.
