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Running with Stryd

Went on a 4 mile run today using the Stryd sensor and setting "distance" and "speed" to always use the sensor. Auto cal disabled.

The results were great. Fantastic accuracy even uncalibrated, and very steady pace data.

I tweaked the calibration factor just a touch based on my V800 and iPhone distance.

Looking forward to some runs of varying pace to see how it handles that. Other stride sensors I've used have consistently under-reported speed and distance at faster paces.

As an aside the GPS track for the run was phenomenal as well, but if the Stryd sensor is consistently what I saw today, I see no reason not to keep using it for pace/distance. It completely eliminates the variability of GPS, and is impervious to tall buildings, trees, etc. Plus, you still get the GPS track info to boot.

Overall I'm really happy with the 935.

0 timgrose over 8 years ago

> The nice thing about Stryd for distance is that it as at least as accurate, if not more accurate, than an excellent GPS device.

How have you determined the optimal calibration factor though?

0 chimpware over 8 years ago

1. Only current pace.

2. If distance is "Indoors" then it will be use GPS for distance outdoors. TBH if you really need distance from the Stryd outdoors then you must have big issues with your GPS accuracy.

Only point I would add to Tim's comments is that Lap Pace and Average Pace are based on GPS data if Stryd is set for Distance Indoors and will use Stryd Data if set for Always. There may be cases in Trail Running where this might be the preferred setting due to potential GPS drop outs.

0 Darre80 over 8 years ago

What about if you loose gps signal in tunnels and you have your stryd set to distance indoor.... will garmin switch to stryd for distance automatically like for their own footpod?

0 timgrose over 8 years ago

What about if you loose gps signal in tunnels and you have your stryd set to distance indoor.... will garmin switch to stryd for distance automatically like for their own footpod?

Not tested this recently but yes it should revert to a paired foot pod (so who makes it should not matter) or the watch itself in that situation.

0 tx911 over 8 years ago

> The nice thing about Stryd for distance is that it as at least as accurate, if not more accurate, than an excellent GPS device.

How have you determined the optimal calibration factor though?

I was very impressed with the uncalibrated Stryd on my initial run using it for all pace and distance information.

I am using the GPS on my V800 and iPhone and the fact that I've run the same route 100s of times as a reference (and yes I recognize that this isn't perfect).

I will probably tweak the calibration factor (manually, auto calibration disabled) over time until I'm happy with it.

The main thing for me is repeat-ability of the measurements over time and accuracy based on multiple previous GPS measurements.

Once dialed in, one should have very accurate pace/distance information for every run, without worrying about the vagaries of GPS signal.

I have not yet tested the Stryd to see how it deals with pace changes during the run, as with intervals. If it cannot handle that well, I'll go back to GPS.

0 ChevronLugs over 8 years ago

From what I'm seeing when I run road, and specifically on a route that has half and mile markers, the Stryd is wicked accurate in an uncalibrated state. I use it paired with my SSU for power, so I'm not seeing the pace/distance while running. Once I get back I'll sync with the iOS app. On the road route that has half and mile markers, I'll start exactly at the 0 mile marker, turn around at 3, and stop at the starting point. Without fail, the Stryd measured 6 miles on every one of those runs. Consider me astonished.

0 chimpware over 8 years ago

If anyone is interested the FellRNR footpod calibration tool works well for calibrating the Stryd too:

http://fellrnr.com/wiki/Garmin_Foot_Pod_Calibration

Just note that the Beta version will not work with newer FIT files due to changes in the files structure.

0 Former Member over 8 years ago

I'd like to add that while I'm still a little unsure/undecided about the usefulness of my Stryd footpod I've started using it more during runs. I've been off the last 3 days due to medical issues. Like I think I mentioned earlier in this thread I have my 935 first data field configured to display "power", "distance", "pace" and "heart rate". I'm working on speed and better running form and looking forward to using information gathered from the Stryd footpod such as "form power" and "leg spring stiffness" to help on that end. Also with the help of the Stryd team and information from the Stryd forum that my issues with dropouts has more to do with some of the machines I use at the gym as during runs outdoors and runs on my home treadmill are absent of excessive dropouts.

0 PatrickNSF over 8 years ago

I've noticed in the Stryd PowerCenter that when I pause my watch during a run, which happens often (street lights, photos, water), the stats like pace, cadence and I assume power are affected. Is there anyway around this?

0 Former Member over 8 years ago

Interestingly i emailed them last night after my run about this very thing. I had a 1 minute pause at a stop light yesterday which threw my pace off for lap 3 and therefore affected other things (at least i think it affected other things like Power). I've asked for potential resolutions, will report back when I hear.