HMD has just launched OffGrid, a rugged, portable satellite communication device that enables two-way texting and SOS service on any smartphone. OffGrid connects to the phone over Bluetooth via an app, and also features live location sharing. The device costs $199 and requires an active subscription to work.https://www.notebookcheck.net/Palm-sized-HMD-OffGrid-brings-two-way-satellite-messaging-to-any-smartphone.946349.0.html
If you have less money than a Pixel or Apple - get Xgate app and purchase subs for most budget android systems.