Unfortunately, there is some misinformation going around.

Can you start a route on the Mega XL without using a phone? YES
The process is similar to what you described with your Garmin 800:
1. Create the route in our GPS analysis website GPS Root (Or import a GPS/TCX to your profile)
2. Transfer it to your device with or without a cellphone
3. On the GPS itself, go to Main menu --> Navigation --> Route Start. This will start the last route loaded into your GPS.


It's worth noting that there are a few other ways to use navigation on our devices as well.
The first is what we refer to as "A to B" and requires the smartphone app. Within the app itself, you can simply select your destination on the map, and the app will provide a few different OSM-based routes to get there (This is based on the profiles you select in the app - "Road Bike", "Mountain Bike", "Easy Ride", etc.). Then you press GO on the app and your GPS will take you there. If you have a data connection OR you have the area downloaded on your phone and device, you will also get automatic rerouting. You need the phone connected to the GPS to get rerouting, but you do not need a data connection.

Another way to navigate with our devices is to actually create a route within the app itself. This will give you a route with turn-by-turn directions, and once the route is loaded onto the GPS, you can turn off the GPS/phone app and do the "Route Start" process I described above.

In either case, you can always start the last transferred "Saved Route" with just the GPS itself.



Here are a few video tutorials which will give you a better idea of the navigation functionality of our devices. The first video is from our Y10 devices, so it doesn't show the Route Start process I described, but much of the functionality remains the same.

Route Building and Navigation Tutorial -- Lezyne Year 10 GPS:
Lezyne Offline Maps & Navigation: