S3 from a different carrier?

[P7M8]

I have VZW but am looking to get the S3 Frontier LTE through T-Mobile. It amazes me with the launch date being tomorrow VZW has no information on the S3.

That being said. How seamless will it be using a VZW S7 Edge and T-Mo Gear S3? I figure I can connect via BT when carrying my phone but how about when I want to leave the phone behind. Some have said the Gear app will allow me to forward the calls from the phone to the watch. How does that affect texts and other features?

I travel internationally so having T-Mo might not be a bad idea with their international included in their plans.

Thanks for any info you can provide.

 

[MKeditor]

I have the S3 Frontier from T-Mobile. Love it. I use Whatsapp for most of my texts which work on both the phone and the S3. I'm not sure about old school texts. The watch has it's own number. I travel internationally too. T-Mobile has been fantastic for that.