It should be noted that with Visible+ after the $29/mo promotional rate ends in 12 months and it goes to the regular $35/mo you could switch to the annual plan. That's $375/year, equivalent to $31.25/mo if we ignore the time value of money.

Another thing to note about Visible+ is that if you have an Apple Watch with cellular and want to use that with your plan there is absolutely no reason to consider Visible+.

Watch support can be added for $10/mo but that brings the total to the same as their highest level plan, Visible+ Pro, which includes watch support. That plan is $45/mo $450/year ($37.50/mo) and promotional discounts run out.

As far as I was able to tell, Visible+ Pro is the best or very close to the best deal for people who want Apple Watch support in the US and only want one line. You can get lower prices per line on postpaid plans with multiple lines but if you will only have one the postpaid plans are ridiculous (even before you add in watch support).