The i-Run team says
Technologies
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GPS
The route planner, along with the "Find Home" (return home) and "Track Back" (return) functions, allows you to navigate through unknown spaces with complete safety and simplicity.
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Altimètre
Calculate the altitude, the rate of ascent or descent, and provide an overview of the progress during a stopover.
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Cardiofréquencemètre
The altimeter and heart rate measurement functions analyze how the heart responds to altitude and easily find the hiking pace.
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Baromètre
Detect sudden changes in weather conditions by keeping an eye on the barometric pressure.
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Boussole
Allows navigation and determination of landmarks on the horizon to find one's way in the wilderness and in conditions of poor visibility.
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FusedAlti
FusedAlti provides an altitude reading by combining GPS altitude and barometric altitude. This technology reduces temporary errors and discrepancies in the final altitude measurement.
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FusedSpeed
FusedSpeedTM uniquely combines the measurements taken by the GPS and the wrist acceleration sensor to more accurately measure your running speed. The GPS signal is adaptively filtered based on the wrist acceleration, resulting in more precise readings at constant running speeds and faster adjustments to speed variations.