Garmin GPSMAP 66i GPS Handheld and Satellite Communicator

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


  • See it in any light. Use it in any conditions. GPSMAP 66i was built for that.
  • When mobiles can’t connect, inReach can. Communicate with confidence.
  • Multi-GNSS satellite support puts superior navigation at your fingertips.
  • 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 Australia and New Zealand.
  • Stay out there longer with up to 35 hours of battery life in tracking mode and up to 200 hours in Expedition mode.


  • Physical dimensions: 2.5” x 6.4” x 1.4” (6.2 x 16.3 x 3.5 cm)
  • Display size: 1.5"W x 2.5"H (3.8 x 6.3 cm); 3" diag (7.6 cm)
  • Display resolution: 240 x 400 pixels
  • Display type: transflective colour TFT
  • Weight: 8.1 oz (230 g) with batteries
  • 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)
  • Water rating: IPX7
  • MIL-STD-810: yes (thermal, shock, water)
  • High-sensitivity receiver: Yes  
  • Interface: high-speed micro USB and NMEA 0183 compatible
  • Memory/History:16 GB (userspace varies based on included mapping)

Maps & Memory

  • Preloaded maps: yes (TopoActive, routable)
  • 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)    
  • Includes searchable points of interests (parks, campgrounds, scenic lookouts, and picnic sites)    
  • Displays national, state, and local parks, forests, and wilderness areas    
  • External memory storage: yes (32 GB max microSD™ card)
  • Waypoints/favorites/locations: 10000
  • Tracks: 250
  • Tracklog: 20000 points, 250 saved GPS tracks, 300 saved fit activities
  • Routes: 250, 250 points per route; 50 points auto-routing
  • Rinex logging: Yes


  • GPS: Yes
  • Galileo: Yes
  • Barometric altimeter    
  • Compass: Yes (tilt-compensated 3-axis)
  • GPS compass (while moving)   

Daily Smart Features

  • Connect IQ™ (downloadable watch faces, data fields, widgets, and apps)    
  • Smart notifications on handheld: Yes
  • Weather: Yes  
  •  VIRB® Remote: Yes   
  • Pairs with Garmin Connect™ Mobile: Yes  
  • Active Weather: Yes

Safety and Tracking Features

  • LiveTrack

Outdoor Recreation

  • Point-to-point navigation: Yes   
  • Compatible with BaseCamp™ Yes
  • Area calculation: Yes
  • Hunt/fish calendar: Yes   
  • Sun and moon information: Yes 
  • XERO™ Locations: Yes 
  • Geocaching-friendly: yes (Geocache Live)
  • Custom maps compatible: yes (500 custom map tiles)
  • Picture viewer: Yes  
  • LED beacon flashlight: Yes

inReach® Features

  • Interactive SOS: Yes
  • Send and receive text messages to SMS and email: Yes  
  • Send and receive text messages to other inReach devices: Yes   
  • Exchange locations with another inReach device: Yes   
  • MapShare compatible with tracking: Yes   
  • Virtual keyboard for custom messaging: Yes
  • Send waypoints to MapShare during the trip: Yes
  • Send route selection to MapShare during the trip: Yes   
  • inReach remote compatible: Yes   

Outdoor Applications

  • Compatible with Garmin Explore™ app: Yes   
  • Garmin Explore website compatible: Yes


  • Wireless connectivity: yes (Wi-Fi®, BLUETOOTH®, ANT+®)   

In The Box

  • GPSMAP 66i
  • Access to Birdseye Satellite Imagery
  • USB cable
  • Carabiner clip
  • Documentation   


pdf download icon  Owner's Manual


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