Garmin GPSMAP 66i



Precise navigation meets global communication in the rugged GPSMAP 66i button-operated GPS handheld and satellite communicator (satellite subscription required). featuring Garmin TopoActive mapping and inReach® technology.

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.




  • Description

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


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


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


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


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


    In case of emergency, trigger an interactive SOS message to GEOS, a professional 24/7 global monitoring and response center (satellite subscription required).


    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 (satellite subscription required).


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


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


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


    This handheld is built to military standards for thermal, shock and water performance (MIL-STD-810), and it’s even compatible with night vision goggles.


    The GPSMAP 66 series helps you keep gear to a minimum with a built-in LED flashlight that can be used as a beacon to signal for help.


    Plan, review and sync waypoints, routes and tracks by using the Garmin Explore mobile app and website. You can even review completed activities while still in the field.


    Turn on Expedition mode, and get up to 200 hours of battery life while using inReach technology. In the default tracking mode, you get up to 35 hours of battery life, and your device will save your location every 10 minutes.


    Physical dimensions 2.5” x 6.4” x 1.4” (6.2 x 16.3 x 3.5 cm)
    GPS Yes
    High-sensitivity receiver Yes
    Interface high speed micro USB and NMEA 0183 compatible
    Display size 1.5″W x 2.5″H (3.8 x 6.3 cm); 3″ diag (7.6 cm)
    Water rating IPX7
    Display resolution 240 x 400 pixels
    Weight 8.1 oz (230 g) with batteries
    Display type transflective color TFT
    Battery type rechargeable, internal lithium-ion
    Battery life up to 35 hours at 10-minute tracking
    Up to 200 hours at 30-minute tracking (power save mode)

    Maps & Navigation

    Waypoints/favorites/locations 10000
    Track log 20000 points, 250 saved gpx tracks, 300 saved fit activities
    Preloaded maps yes (TopoActive, routable)
    External memory storage yes (32 GB max microSD™ card)
    Routes 250, 250 points per route; 50 points auto routing
    Basemap Yes
    Memory/History 16 GB (user space varies based on included mapping)
    Ability to add maps Yes


    VIRB® Remote Yes
    Exchange locations with other inReach device Yes
    Location reporting (send and receive GPS positions) No
    GPS compass (while moving) Yes
    Send route selection to MapShare during trip No
    Sun and moon information Yes
    Compatible with Garmin Explore™ app Yes
    Send waypoints to MapShare during trip No
    Map segments 15000
    Point-to-point navigation Yes
    Automatic routing (turn by turn routing on roads) Yes
    LED beacon flashlight Yes
    Interactive SOS Yes
    Frequency band No
    Weather Yes
    Picture viewer Yes
    Garmin Explore website compatible Yes
    Rinex logging Yes
    Pairs with Garmin Connect™ Mobile Yes
    Compatible with BaseCamp™ Yes
    MapShare compatible with tracking Yes
    Custom maps compatible yes (500 custom map tiles)
    Galileo Yes
    Tracks 250
    VOX (voice activation) No
    Geocaching-friendly yes (Geocache Live)
    BirdsEye yes (direct to device)
    Includes searchable points of interests (parks, campgrounds, scenic lookouts and picnic sites) Yes
    Send and receive text messages to SMS and email Yes
    inReach remote compatible Yes
    Includes detailed hydrographic features (coastlines, lake/river shorelines, wetlands and perennial and seasonal streams) Yes
    Displays national, state and local parks, forests, and wilderness areas Yes
    Compatible with Earthmate No
    Hunt/fish calendar Yes
    LiveTrack Yes
    Vibration alert No
    Active Weather Yes
    Connect IQ™ (downloadable watch faces, data fields, widgets and apps) Yes
    inReach remote widget No
    Wireless connectivity yes (Wi-Fi®, BLUETOOTH®, ANT+®)
    Touchscreen No
    Smart notifications on handheld Yes
    Send and receive text messages to other inReach device Yes
    Contacts No
    XERO™ Locations Yes
    MIL-STD-810 yes (thermal, shock, water)
    Compass Yes (tilt-compensated 3-axis)
    Virtual keyboard for custom messaging Yes
    Area calculation Yes
    Barometric altimeter Yes

    Product SKU: TI-G-010-02088-01

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