One of the keys to being successful and fair in Zwift racing is making sure your weight is current and correct. I just discovered that you can automatically sync your smart scales to Zwift.
This is fairly simply done via the Zwift Companion app. (These instructions are based on the app for iOS.) Once open, tap more in the bottom right hand corner, then tap settings and finally connections.
Depending on whether your scales are Withings (now Nokia) or Fitbit, tap the appropriate +
I set up my Withings scales. I had to sign into my Withings account and authorise Zwift to access its data:
Once done the source now has a grey check next to it on the list of connections:
Now every time you weigh yourself, it automatically updates your weight in Zwift. I weigh myself in kilograms and it rounds up or down, so the first time I weighed myself at 75.8kg, Zwift had my weight at 76KG. Later after some tough workouts I weighed myself at 75.4kg and that was shown as 75kg in Zwift.
So whilst not perfect, it’s one less thing to worry about if you are gaining or losing weight.
Ride on!
What about Wahoo Fitness scales?
hi Rick, there doesn’t appear to be an option to link to Wahoo at the moment.
How about the Garmin scale? It appears Garmin pulls from Strava (i.e., ride data), but not send data (i.e., duplex).
It doesn’t work with Garmin Index scale
It’s not Zwift’s fault that it doesn’t work with the Garmin. When I was researching smart scales last year I avoided the Garmin because they have no third party API.
Garmin does have a third party API. It’s based on REST and is called Wellness API. (https://developer.garmin.com/blog/category/wellness-api/) I am not sure what is the limitation for them to update here. It may be an import only function at this time as Garmin seems to be trying to keep everything within their Connect ecosystem.
Although you can link Withings scales with Zwift the actual sync process is broken. It will perform a sync when you first setup the connection but future weight changes won’t come across into Zwift. This is something Zwift are aware about but not actively looking to fix based on the support call I opened with them.
The article therefore is a little pointless as the process clearly hasn’t been tested!
that’s pretty harsh Philip, of course I tested this before posting, and all 3 weight measurements done on 3 different days were automatically updated to Zwift.
I’ve had my Withings scale connected to Zwift since they launched the feature in July. The weights always come through for me.
My experience is the same as Kyle, all my Withings wi-fi weight measurements have gone through automatically to Zwift.
Hi Philip, from the HOME screen on the Zwift mobile app, pull down from the top to do a refresh. (you’ll see a quick spinning symbol) Once you do that then go to the … MORE screen to: Settings, Profile. At this point your weight should have been updated.
Hope this helps!
Great article! Would be good to be able to sync with Polar scales as well which currently doesn’t seem to be an option. Hope they (Zwift or Polar) can work on this…