Setting walking stride via run?

[sutherlandws]

I have read in this forum that you can automatically have your stride updated if you do several runs with GPS enabled. However, the Android app has different walk and run strides.   Can you not automatically set both? 

In addition, I have 2 walking stride lengths. One when I walk slowly and one when I walk fast.   I'd like to use the run stride for faster walks and the walk when  on slower walks.   Can I do that and have both determined automatically?

[USAF-Larry]

@sutherlandws, to answer your last question first, No.  To answer your first question next, No.  You can manually set both the Walk and Run stride lengths, or you can take the default for both, or you can set the Walk stride length and then have it measure & calculate your Run stride length.

But, regardless of what you do, if you want to use two different "Walk Stride Length" settings, using one as Walk and one a Run, you will have to manually record the Walk (Slow) and Run (Fast Walk) exercises as the tracker will not automatically recognize a fast walk as a run.

[sutherlandws]

Can you clarify? Some people jog slowly, about as fast as my fastest walk
(4.33 mph). How does the Fitbit Charge 2 differentiate between the two?
Both involve similar body motions. I am curious. Worst case, I'm off to
the local High school to measure my stride(s) next to their football field
8^). I was just hoping to take advantage of the features of my Fitbit to
do some of it for me (or, more likely, to see how 'well' it measures my
stride vs what I get manually). Sorry, it's the analytical chemist in me
coming out again. 8^)

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Scott Sutherland
16906 Windypine Drive
Spring, TX 77379
Cell: 978-387-9106
Email: sutherlandws@gmail.com

[shipo]

@sutherlandws, Fitbit cannot differentiate between any type of a walk.  Your best bet is to operate under Connected GPS as often as possible.

[sutherlandws]

The third of my daily walks is typically the longest and the one where I
walk the fastest. I have been using my phone (after using
Settings/Connections/Location/Locating Method/High Accuracy (Use GPS,
Wi-Fi, and mobile networks to estimate your location)) to track the walk
'as a Run' (Fitbit App/Press teal circle with + sign in it/Track
Exercise/Select 'Run' from Dropdown/Wait for GPS to sync/Press Play icon in
Red circle/Hit Pause button when done/long press STOP to end tracking) on
these walks.

After doing this 3-4 times over 3-4 days, (App set using Account/Advanced
Settings/Stride Length/Set Automatically chosen), the stride length for Run
(on the Stride Length screen) has not updated. It is ghosted at 35.8 in,
so I don't know if that number is supposed to update automatically when
'Connected GPS' run is used. If not, is there a place where I can see what
the app is now using for my stride? I want to see if it is updating after
each tracked activity using Connected GPS.

Per the prior response to my question, the indication was that the run
stride would never update with a walk. My question on walk vs run was
prompted by this. I wanted to know how the FitBit and/or App would
differentiate when I was actually running (and update the stride) versus
when I was walking very fast (and not update the stride).

Your comment seems to indicate that it cannot differentiate between any
type of walk. I am a bit confused, since there are settings in the app has
the 'Auto Recognized Exercises' settings that imply it can differentiate
between Walk, Run, Outdoor Bike, Elliptical, Sport, and Aerobic Workout.

Each are set to 15+ minutes of activity to be auto-recognized. I would be
interested in what metrics the device uses to put a measured activity of
over 15 minutes into one or more of these categories. I assume it is a
combination of arm swing (or none), steps (or none), distance covered vs
time (so velocity), and heart rate. I suspect there is some sort of
decision tree that puts any over 15 minute activity into one of these
categories. For instance, if Velocity is < 5 mph, and arm swing is
detected and heart rate is < 70% of maximum (for your age, gender, weight),
then you are doing a WALK. If velocity is > 10 mph, no arm swing is
detected, and heart rate is elevated over resting by YY%, and GPS shows you
are outdoors, then this is an Outdoor Bicycle. Is the decision process
documented for public consumption?

Thanks for any insights anyone can provide.

--
--
Scott Sutherland
16906 Windypine Drive
Spring, TX 77379
Cell: 978-387-9106
Email: sutherlandws@gmail.com