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What two devices, please, will not sync ?
Perhaps your Vivosmart and your computer with some Garmin Vivo' software on it ?
What other devices does either the one (Vivosmart) or the other (Moto X), actually still succeed in connecting to?
When did the link to the Samsung TV last work OK?
Try it now, if not as recently as within the last 2 days.
OK, that's good. It indicates that one of the two devices that won't link up is working, essentially, still.
Given that is the case the problem must be either on the other side (the Vivosmart, presumably) or it must be a configuration problem.
I presume that the connecting process consists of your making the Vivosmart available for a Bluetooth connection. Then configuring a connection on the Moto X side, and then pairing, then connecting.
Try going through those steps, in that order, once again - but! do not use what you already have configured esp. not on the Moto X. If the Moto X has an established configuration for auto-connecting to the Vivosmart, or that sort of thing, either remove it, o go around it and do the connect setup from scratch, as if the device were new to you.
Then the Vivosmart may be defective - how old is it?
Reset the Vivosmart, then... and make sure first, that you are really trying to
with it (not some other device) - because pairing is really the first stage of Bluetooth connecting, then follows Connecting, after Pairing can be done.
I have passed your request to Customer Service, which will take care of it with reasonable promptness.
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