Need assistance? Send interactive SOS alerts anytime, globally.

No matter where you are, two-way messaging lets you connect to the ones who matter.

Let loved ones know precisely where you’re roaming with location tracking and sharing.

Get maps as pretty as a picture and just as detailed —without a subscription.

Know the terrain before you’re in it, with preloaded TopoActive maps of the U.S. and Canada.

Stay out there longer with up to 35 hours of battery life in tracking mode and up to 200 hours in Expedition mode.

 

MULTI-GNSS SUPPORT

Access multiple global navigation satellite systems (GPS and GALILEO) to track in more challenging environments than GPS alone.

ABC SENSORS

Navigate every trail with ABC sensors, including an altimeter for elevation data, barometer to monitor weather and 3-axis electronic compass.

BIRDSEYE SATELLITE IMAGERY

Download high-resolution, photo-realistic  directly to your device without an annual subscription. Easily find trails, pick stand locations, find parking, create waypoints and more.

PRELOADED TOPO MAPS

Preloaded  U.S. and Canada maps show you terrain contours, topographic elevations, summits, parks, coastlines, rivers, lakes and geographical points.

WIKILOC TRAILS

This  lets you easily download hiking, cycling and other Wikiloc trails shared by outdoor enthusiasts like you. Get a free 60-day  trial to try this and other exclusive features. .

TWO-WAY MESSAGING

Exchange text messages with loved ones, post to social media, or communicate from inReach to inReach in the field ().

INTERACTIVE SOS ALERTS

In case of emergency, trigger an interactive SOS message to the Garmin IERCC, a 24/7 staffed professional emergency response coordination center ().

LOCATION SHARING

Track your location, and share it with those at home or out in the field. They’ll be able to see your progress or ping your device for your GPS location and more ().

100% GLOBAL IRIDIUM® SATELLITE NETWORK

Instead of relying on cellphone coverage, now your messages, SOS alerts and tracking are transferred via the global Iridium satellite network ().

OPTIONAL INREACH WEATHER

Use inReach connectivity to get detailed weather updates on GPSMAP 66i or a compatible device paired with the ™ app. Request weather forecasts for your current location, waypoints or destinations on your route.

ACTIVE WEATHER

When paired with your , you can get real-time forecast information and live weather radar, so you’re always aware of the surrounding conditions.

General
PHYSICAL DIMENSIONS	6.6 x 16.3 x 3.5 cm
DISPLAY SIZE	3.8 x 6.3 cm; 3" diag (7.6 cm)
DISPLAY RESOLUTION	240 x 400 pixels
DISPLAY TYPE	Transflective colour TFT
WEIGHT	241 g
BATTERY TYPE	rechargeable lithium-ion
BATTERY LIFE	Up to 35 hours at 10-minute tracking; up to 200 hours at 30-minute tracking (power save mode)
	IPX7
MIL-STD-810	yes (thermal, shock, water)
HIGH-SENSITIVITY RECEIVER	yes
INTERFACE	high speed micro USB and NMEA 0183 compatible
MEMORY/HISTORY	16GB

 

Maps & Memory
PRELOADED MAPS	Yes (topographic)
ABILITY TO ADD MAPS	yes
BASEMAP	yes
AUTOMATIC ROUTING (TURN BY TURN ROUTING ON ROADS) FOR OUTDOOR ACTIVITIES	yes
MAP SEGMENTS	15000
BIRDSEYE	yes (direct to device)
INCLUDES DETAILED HYDROGRAPHIC FEATURES (COASTLINES, LAKE/RIVER SHORELINES, WETLANDS AND PERENNIAL AND SEASONAL STREAMS)	yes
INCLUDES SEARCHABLE POINTS OF INTERESTS (PARKS, CAMPGROUNDS, SCENIC LOOKOUTS AND PICNIC SITES)	yes
DISPLAYS NATIONAL, STATE AND LOCAL PARKS, FORESTS, AND WILDERNESS AREAS	yes
EXTERNAL MEMORY STORAGE	microSD™ card (not included)
WAYPOINTS/FAVORITES/LOCATIONS	10,000
TRACKS	250
TRACK LOG	20,000 points, 250 saved gpx tracks, 300 saved fit archives
ROUTES	250

RINEX LOGGING

yes

 

Sensors
GPS	yes
GALILEO	yes
BAROMETRIC ALTIMETER	yes
COMPASS	Yes (tilt-compensated 3-axis)

GPS COMPASS (WHILE MOVING)

yes