Satellite messengers are an absolute game-changer if you're venturing into remote areas that lay beyond the reach of traditional mobile networks. Unlike standard smartphones that rely on cellular networks made up of physical towers, satellite messengers communicate directly with satellites orbiting about 500 miles above Earth, ensuring you stay connected even in the most isolated locations.

Also: The best October Prime Day deals live now

Maintaining contact in an area with inadequate cellular coverage is challenging, so a satellite messenger unit that can be used to send text messages and ping my location can be invaluable. I've used a variety of during off-grid adventures, and one brand I've had good success with is SPOT. And if you're in the market for one, then I have good news for you -- you can save 15% with these Amazon Prime Day deals.

There are three deals here: