Garmin GPSMAP 66i Satellite Communicator and GPS

Highlights
- inReach technology allows you to send an SOS signal or send and receive messages in the most remote locations
- Rechargeable lithium battery offers up to 200 hours of battery life in Expedition mode with 30-minute tracking intervals
- Fully functional GPS that accepts micro SD memory cards

Breakdown 
The Garmin GPSMAP 66i pairs the power of a handheld GPS device with the convenience of a satellite communicator in one compact unit. It comes preloaded with Garmin TOPO maps and the ability to download BirdsEye Satellite imagery directly to the device for free. The GPSMAP 66i uses the same Iridium satellite network as the inReach devices, this guarantees great service no matter how far you are from the trailhead (subscription required). This gives you the ability to check in with family and friends, get help for a pack out, or get help if you are injured.

Previous satellite communicators have had subpar mapping capabilities that forced users to carry an additional GPS or rely on smartphone maps. The GPSMAP 66i overcomes this hurdle with a large 3" screen and the best that Garmin has to offer in map products. Another notable feature is that this device does have a micro SD card slot that allows you to increase the memory of the device and use maps from 3rd party providers. The GPSMAP 66i is compatible with  the Garmin Explore website and app allowing you to manage waypoints, routes, activities, and collections on your phone or computer.