Garmin Forerunner 920XT Black/Blue Watch

Amazon.com Price: $616.94 (as of 02/06/2019 08:20 PST- Details)

VO2 MAX, RECOVERY TIME & RACE PREDICTOR2 Forerunner 920XT estimates VO2 max, recovery time and predicts your race times for several distances when used with heart rate. When used with a power meter, it estimates VO2 max for cycling as well.
RUNNING DYNAMICS1 When paired with the HRM-RunTM monitor, the Forerunner 920XT provides feedback on running form by measuring cadence, vertical oscillation and ground contact time.
METRICS THAT MATTER Record speed, distance, ascent/descent, grade and more. Pair with ANT+ compatible sensors to measure heart rate4, speed4, cadence4 and power4. Control VIRB Elite action camera4 to record and relive your accomplishments