US Mobile's multi-network functionality is similar to one of Google Fi's now-defunct features ... and then jumps to $15 per month. Customers will need a dual eSIM phone to use.

Why not let it manage your mobile coverage? Google Fi is unique among prepared carriers, supports an impressive list of phones, and feels more like a traditional carrier in many ways. If you want ...

The plans listed in the image above will all cost $15 a month for the first three months, as of the time of this writing. On the other hand, Google Fi Wireless offers no introductory deals.