ANT+ / Bluetooth sensor for Fenix 3

The only thing you can get with a sensor attached to your ankle is cadence.
For speed/distance you'd need to attach a speed sensor to a real wheel with known diameter and since the vast majority of gym bikes lack real wheels, it's a no, I guess.

Hi,

I recently bought a Fenix 3 watch (which is fantastic) and was wondering if anyone can recommend a good bike (sock) sensor, which I need for when I'm on an indoor static bike at the gymn.

As its not my bike I need one that attaches round my anke or slips into my sock.

Its mainly just for recording distance / speed - if this is possible



Cheers

Chris

Most gym exercise bikes (vs a regular bike on a trainer) are fixed speed, thus cadence is "speed". But the ANT+ tells what it is. So if you find a speed sensor that works you can use that to display a speed and distance. But it will only be a relative number that depends on what "wheel size" number that you put in. If you find a cadence sensor you will only get cadence and you can use average cadence multiplied by time to give you a relative index of distance.

In the past most cadence and/or speed sensor consisted of a fixed sensor and moving magnet that mounted on the pedal arms or wheels. Those types would be very hard to use like you want.

Some newer ones are "magnet-less". Many use an accelerometer. But the Garmin speed sensor uses the earths magnetic field, but I don't know how work in this case. Also it is ANT+ only.

Interest question, but you are on your own experimenting.

Its mainly just for recording distance / speed - if this is possible



Cheers

Chris

Ahh, that's easy. No need for a sensor. Your speed is zero. Your distance is zero. You didn't go anywhere.

Pay attention to heart rate, and power if the bike has that. Speed and distance are irrelevant. Make some reasonable numbers up if you feel the need.