Best Satellite Messenger for Offshore Sailing: Garmin inReach vs Zoleo vs ACR Bivy Stick
Our top picks and detailed comparisons to help you choose the right gear for offshore sailing.
A satellite messenger is the safety device that works when everything else fails. Your VHF is line-of-sight only. Your Starlink needs power and clear sky and works at anchor, not mid-ocean in a crisis. Your EPIRB is a one-way distress beacon — it calls for help but can't receive a response or communicate your situation.
A satellite messenger bridges all of those gaps: two-way text messaging from anywhere on earth, GPS tracking that lets people ashore know where you are, weather forecasts delivered to your hand, and — critically — an SOS button that connects you directly to a global rescue coordination center with two-way communication throughout the emergency.
For the cost of a nice dinner ashore each month, you get a communications lifeline that works at the South Pole, mid-Pacific, and everywhere in between. There's no reason not to carry one. The question is which one.
What They All Do
All three devices in this comparison share a core feature set:
