the apple health app is connected to strava, so every time I weigh myself, it should update itself or am I wrong?
Renpho app (for scale) > apple health > strava > Intervals.icu
all connected to each other. but the weight does not update. 
I have whthing scale body+.
i sync weight to myfitnesspal which send weight to garmin connect.
i connect intervals.icu to garmin connect and the weight data is pulled.
afaik there is no way to sync from garmin connect or whiting to strava… unless is with ifft app but I haven’t tested that yet.
this method only sync weight. not body composition like body fat, etc
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AH to Strava does not work
I’m using an IFTTT applet to sync from Withings to Strava.
and you will have Weight synced only in days you do activities.
But maybe if we keep asking (nicely) to @David sooner or later he will implement the Withings API directly into intervals 
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Thanks for the advice.
Now I’ll see if I can.
is this the app?
Filippo di dove sei?
I think that to have more precise measurements, I will take the Tanita RD-545 HR scale. It is professional medical grade. the problem will be how to import the daily weighings into intervals.icu. I’m afraid it will only be possible manually.
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yes
then you can activate this applet and you should see your weight synced to Strava
For what ever reason I cannot find “Weight Sync” on my settings page. I can only edit manually my weight. Any reason?
it’s a “service based” setting, like this for Strava 
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I still have issues getting my weight data from my Withings into Intervals. Would Strava be a good intermediate step then?
Withings API is definitively working because I can get my data into Nolio.
I was also thinking about Garmin as an intermediate steps if there’s a way?
I use HealthFit on iOS to get stuff from the scale to I.icu.
Check this thread Smart scale recommendation for weight sync for some options, for Withings and other scales.
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