EPIRB vs InReach
This is a fairly common question I get asked so I thought to lay out the key differences in a maritime context.
I can’t comment in great detail on land-based use cases so research that further for yourself.
Both are primarily types of emergency beacons, while an InReach can also be used for general comms.
| EPIRB | InReach | |
|---|---|---|
| Subscription | No | Yes |
| Signal | Radio | Satellite |
| Communication | One-way | Two-way |
| Business Model | International non-profit | Corporately operated |
| Emergency at sea | Primary | Secondary |
EPIRBs are designed specifically for emergency response, by automatically (category 1) or manually activating (category 2) in the event of distress.
A Garmin InReach can be used at sea but you SHOULD NOT be used as a substitute to an EPIRB. By all means use one for two-way messaging with friends and family or reach out for assistance after activating your EPIRB.
Key Features Compared
Overview of an EPIRB
As I mentioned earlier your EPIRB is engineered to work within the international Cospas-Sarsat distress system.
Upon activation, an EPIRB transmits a coded message on the 406 MHz distress frequency, which contains unique identification information and, if integrated with GPS, your precise location.
You can activate your EPIRB manually by switching it on, or it may auto-deploy if submerged, using a hydrostatic release unit.
After activation, the EPIRB’s signal continues to emit, and in many models, an integrated strobe light will begin flashing, making it easier for rescuers to locate you, especially at night or in poor visibility conditions.
Overview of InReach
If you are considering if a sat phone is worth it, then a Garmin InReach can be viewed as a cheaper alternative.
Garmin uses the International Emergency Response Coordination Center (IERCC) for any triggered SOS signal which is subscription-based and is a huge point of departure from an EPIRB.
Messaging: Two-way text messaging capabilities. You can communicate with family, friends, or emergency services from anywhere in the world.
Tracking: InReach devices provide tracking features that send your GPS location at intervals to friends or family.
Usage Scenarios
As I alluded to at the start, this article is written from a maritime perspective and the right choice between either depends largely on your specific context and requirements.
Maritime Applications
An EPIRB is mandatory on many commercial ships and forms a vital part of marine communication and GMDSS.
Sailors engaging in serious offshore fishing, or those journeying through remote oceanic routes, generally regard an EPIRB as essential.
Once you have one on board you can look further into the benefits of a satellite phone over an EPIRB.
Land Expeditions
Conversely, an InReach device is a versatile choice for land-based adventures. Whether you’re hiking, skiing, or traveling in a remote area, an InReach provides two-way text messaging, GPS tracking, and SOS capabilities.
Personal Locator Beacons (PLBs), are variations of EPIRB suited for individual use, that don’t require subscriptions but are more limited in features compared to an InReach.
