Who I have the same questioned this topic

I have two Verizon-branded Samsung Galaxy S7 phones with International Calling and TravelPass enabled.  Next month, I am travelling to Japan for three weeks.  With TravelPass enabled, these phones will each begin incurring a charge of $10/day as soon as I leave the North American continent.  But I only need one phone to cost me an additional $210, not both.  I would like to use the other phone as ONLY a wi-fi internet device and camera such that it does not incur either the $10/day TravelPass charge or any exorbitant international charges beyond its normal monthly domestic charges.

Will either of the following accomplish this?  Do I need to do both of these to accomplish this?  Do I need to do something additional or something else to accomplish this?

A) Disable Mobile Data on the specified phone by turning Settings>Connections>Data Usage>Mobile Data to OFF.

B) Disable TravelPass on the specified phone by going to My Verizon>Menu>Data Hub>International>Manage Plans>TravelPass>Remove.