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Currently have a Garmin Zumo 665, which was a top-of-the-line unit when it came out - 10+ years ago. The maps are still good and my trip to Colorado went fine. But the screen no longer seems very bright, route recalculation is slow, and it has limited memory capacity - which I discovered when I wanted to add CO to the Northeast.
For a lot of riding a phone app like Waze is better due to real-time traffic and police reporting. But phones still aren’t waterproof and are difficult to operate with gloves. Plus there is a lot of riding outside cell tower range.
The Garmin Zumo XT is their newest moto unit. Much higher resolution, brighter screen, has topo maps, lot more memory easier mounting. you can link your phone via Bluetooth. $500. The topo maps makes it a lot more attractive for snowmobile use.
Will I be the last one on the planet buying a dedicated GPS?
https://www.garmin.com/en-US/p/679804