Here’s a head-to-had comparison of between the Garmin GPSMAP 66i vs SPOT X. I have field tested both of these satellite communicators many times over the last several years, so let me give you the breakdown from what I have found.

What They Have in Common

S.O.S. Button to call for Emergency Services
Two-way Messaging
Satellite Messaging
Pre-Programmable Messages
Bluetooth Capable
Tracking for Family and Friends

What’s Different about the SPOT X?

Built-in Keypad
Uses Globalstar Satellite Network
Unique U.S. Cellular Number

What’s Different about the GPSMAP 66i

Pre-loaded Topo Maps
Satellite Imagery
Global Pole-to-Pole Satellite Coverage
Weather Forecasts
LED Flashlight

The Look and Feel

Both the GPSMAP 66i and the SPOT X are large devices. You can see them side-by-side in the image below plus I’ll post some specs below that.

You can see that these devices are about the same height and weight, but the SPOT X is about 0.5 inches wider and the 66i is about 1 ounce heavier, but this is where the similarities stop.

What the 66i has Over the SPOT X

There are several things that give the Garmin GPSMAP 66i a major advantage over the SPOT X. First, the 66i has global, pole-to-pole coverage. Second, you can see pre-downloaded topo maps on the GPSMAP 66i. Lastly, you can get detailed weather forecasts on the 66i.

There are many more differences, but these are the most obvious differences.

Final Thoughts

I do like the SPOT X and the new SPOT Gen4, and you’ll be happy with these satellite communicators if you buy one, but if you haven’t made that decision yet, then may I suggest you take a harder look at the Garmin GPSMAP 66i?

I have tested the 66i extensively, along with many other Garmin Communicators and I only use the Garmins now as my satellite messengers when I head out on my outdoor adventures.

Learn more about the GPSMAP 66i field tests HERE.

Learn more about the SPOT X field tests HERE.

You can see more about the differences between the 66i and the SPOT X in the YouTube video below.

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