When you’re off the beaten path, there are more and more options available to get help in an emergency, or even tweet about your adventure.

Which system will be the best for you, though? Have a look at our handy comparison chart to help you with your decision!

ProductACR – 406 Link
acr
SPOT 4
spot 3
SPOT X
spot x
Garmin inReach Explore+
inreach exploerer
Garmin inReach Mini
inreach mini
Garmin GPSMAP 66i
inreach 66i
Garmin Montana 700i & 750i
montana 700i
ZOLEO
zoleo
Satellite ConstellationLEOSAR-GEOSAR maintained by NOAA34 LEO satellites maintained by GlobalStar34 LEO satellites maintained by GlobalStar66 cross-linked LEO satellites maintained by Iridium66 cross-linked LEO satellites maintained by Iridium66 cross-linked LEO satellites maintained by Iridium66 cross-linked LEO satellites maintained by Iridium66 cross-linked LEO satellites maintained by Iridium + Cellular network + WiFi
CoverageGlobalVirtually Global – mostly inland, some off shoreVirtually Global – 2-way messaging is Americas, Europe and most of africaGlobalGlobalGlobalGlobalGlobal
Where does your distress signal go?CospasGEOS EIRCCGEOS EIRCCGEOS EIRCCGEOS EIRCCGEOS EIRCCGEOS EIRCCGEOS EIRCC
Annual or Monthly FeeNot mandatory – annual fee is only used for advanced self tests. Beacon testing can be done without the 406Link service.MandatoryMandatoryMandatoryMandatoryMandatoryMandatoryMandatory
SOS
Help – send for help to predetermined contacts
Check-in/OK
Custom Message ✅ (pre-determined messages only)✅ (pre-determined 120 character messages only)✅ (160 character type & send messages either used alone or when paired with iPhone or Android)✅ (160 character messages when paired with iPhone or Andriod)✅ (950 character type & send messages when paired when paired with iPhone or Andriod)
Tracking ✅ (additional fee)✅ (with select plans)✅ (with select plans)✅ (with select plans)✅ (with select plans)
2-way Communication
Update Social Networking Sites
Weather forecasts✅ (additional service)✅ (additional service)✅ (additional service or Active Weather when paired with cell phone)✅ (additional service or Active Weather when paired with cell phone)
Mapping On mobile devices using the free Earthmate® app for access to downloadable maps, U.S. NOAA charts, color aerial imagery and morePreloaded DeLorme® TOPO maps on device PLUS on mobile devices using the free Earthmate® app for access to downloadable maps, U.S. NOAA charts, color aerial imagery and morePreloaded Garmin TopoActive maps of North America. Compatible with other Garmin mapping, BirdsEye, U.S. NOAA charts and more either via the Garmin Explore App or pre-loaded microSD cards or downloads (depends on map and usage).Preloaded Garmin TopoActive maps of North America. Compatible with other Garmin mapping, BirdsEye, U.S. NOAA charts and more either via the Garmin Explore App or pre-loaded microSD cards or downloads (depends on map and usage).
Pairs with IOS or Android devices via Bluetooth
Keyboard for on-device message constructionNo. Use up and down toggle buttons or pair to smartphone for easy typing.No. Use up and down toggle buttons or pair to smartphone for easy typing.No. Use up and down toggle buttons or pair to smartphone for easy typing.✅ Touchscreen QWERTY keyboard to pair to smartphone No. Pair to smartphone for typing.