My Vivofit3 doesn't syncronize correctly.

What usb usb cable?

I don't have one for my vivofit.

Ah, OK, in that case it should work with the USB ANT Stick and Garmin Express

However, the manual for Vivofit tells the device updates via Garmin Connect as well:

https://www8.garmin.com/manuals/webhelp/vivofit/EN-US/GUID-98B3CA52-21DA-472D-A32C-5D20041CCE7E.html

If you cannot sync, you need to troubleshoot that problem first. Use the tips in this thread.

The trouble I face is that I can see, the watch doesn't have the latest software. However since I cannot do acomplete syncronization through Garmin Connect, nor establish a bluetooth connection with Garmin Express, I left not knowing what to do...

I'm really grateful that you try to help me.

The trouble I face is that I can see, the watch doesn't have the latest software. However since I cannot do acomplete syncronization through Garmin Connect, nor establish a bluetooth connection with Garmin Express, I left not knowing what to do...

That's exactly the reason why I've posted the link to the troubleshooting guide which will help you restoring the connection

Hi trux.

I was finally able to download the updated software. After going through all the possible steps in the troubleshooting guide (without any luck) and trying 3 different devices, it finally worked, when I paired my watch with an Ipad.

Now I just hope that this new software makes it possible for my watch and my phone to connect well with one another.

Thank you so much for your help and patience.