r/jetski • u/Complex-Ice-1523 • 7d ago
Speedometer: I think you can use an old phone with an app and mobile/wifi turned off.
Evidently, GPS doesn't require a cell signal or wifi. So, you can download a speedometer app and use it on an old phone without a cell phone plan.
(I haven't confirmed this yet but my speedometer app seems to be picking up a GPS signal without mobile or wifi turned on... all connections are off on my phone but it is still connected to GPS).