- PHYSIOLOGICAL METRICS - *
Estimates the level of effort at which fatigue rapidly increases in terms of a runner's heart rate and pace.
Measures heart rate variability to make an assessment of a user's overall level of stress.
Provides a real-time fitness-level measurement relative to a runner's average baseline, which indicates performance readiness for the day's workout or race.
- ADVANCED RUNNING DYNAMICS - **
Measures the length of a runner's stride in real time - a metrics which can be used to predict race finish times.
Left/Right Ground Contact Time Balance
Measures a runner's ground contact symmetry, which some runners have found to correlate with injuries or strength imbalances.
The cost-benefit ratio of vertical oscillation to stride length, serving as one indictor of a runner's efficiency.
- RUNNING DYNAMICS -
The number of steps per minute. It displays the total steps (right and left combined)
The bounce in your running motion. It displays the vertical motion of your torso, measured in centimeters.
Ground Contact Time
The amount of time in each step that you spend on the ground while running. It is measured in milliseconds.
- COMPATIBILITY -
- D2 Pilot
- Descent MK1
- Forerunner 630
- Forerunner 645
- Forerunner 920XT
- Forerunner 935
- Fenix 3
- Fenix 5 / 5S / 5X
- Fenix Chronos
- Foretrex 601
- Foretrex 701 Ballistic Edition
- VIRB 360
- Tactix Bravo
- Weight - 59 g
- Sizing - 23.5" to 56.0" (60.0 to 142.0 cm)
- Water rating - 5 ATM
- Life - up to 1 yr
- Type - CR2032 (included)
- ANT+ compatible - yes
- Bluetooth 4.0 LE capable - no
- Stores & forwards HR - no
- Strap Extender
* Physiological metrics available when paired with Forerunner 630, fenix 3 and fenix 3 HR.
** Advanced running dynamics available when paired with Forerunner 630, Forerunner 920XT, fenix 3 and fenix 3 HR.