Gps running smartwatch with advanced training features you do the running while forerunner 245 does the thinking this gps running smartwatch evaluates your performance stats such as vo2 max, aerobic and anaerobic training effect and training status, and will indicate if you're undertraining or overdoing it you can also track advanced running dynamics such as ground contact time balance and stride length take the guesswork out of training for your next 5k when you team this watch with the garmin coach app select free training plans that adapt to your goals, or take training into your own hands by creating custom workouts at garmin connect, our free online fitness community look at the fact tags evaluates your current training status to indicate if you're undertraining or overdoing it and offers additional performance monitoring features get free adaptive training plans from garmin coach, or create your own custom workouts at our garmin connect online fitness communit