Not a recommendation, but just another option. I use cycling computers on the motorcycle.
I have this one:
It's about the size of small phone, so not a huge screen. It doesn't have have a complicated mount that has to be wired in or anything. It's a quarter turn twist lock that is mounted on the handlebars and can be taken off in about a minute with 2.5 hex wrench.
I have one mount on each bike and move the unit in between them. I've crashed with them on the bike more times than I want to admit and they have never fallen off. The mount looks like this:
It charges on USB and lasts about 10 hours before going into battery save mode. I've never run it to zero even when it its battery save mode. They make a battery for that doubles the time, but I haven't found that I've needed it for my trips. Then I just charge it overnight at the hotel and its ready to go the next day.
The thing I like about it is that it is built to use pre-configured maps instead of forcing you to use its route. With an app on your phone, you can create routes on the fly and send them instantly to the GPS. Or you can create routes ahead of time on the tablet/computer and have a list of them saved to use. You don't have to use their app, it just makes it a little easier. I think you can enter an address and have it guide you, but I never use it that way. I like drawing my own route and riding that.
It also tracks the entire ride and automatically uploads it to an online database. I have literally 1,000+ rides stored there from the last 6 years. You can go back and look at all the ride info from rides years ago. They look like this:
You can literally drill into any stats you want from the ride and create routes from them. So if you follow folks through a new area. When you get home, you have a GPX file of the ride to use later if wanted.
I have a Zumo, but its in a box somewhere and I just use this thing now. If you are doing 10+ hour rides or need to create tracks to go through somewhere without roads, this probably isn't the right unit. Or if you are camping without power. But for everything else, it seems to work well. I just have a mount on each bike and move the unit from bike to bike as needed.
It also doesn't eat up your phone battery. You can keep that in your coat pocket charged up for emergencies. Oh, just thought of another thing. It provides tracking info to others. If you share the ride, they can watch you real time and see where you are on the route. If you crash, it alerts them and shows your location. If you want, you can send an emergency distress message out as well, but those features all require phone service and don't work with satellite like a Spot or something.
Again, if you aren't too remote, this works well and I use these functions all the time. It gives my girlfriend and daughter a little peace of mind to see where I am on long rides. Though sometimes I wonder, "Were they watching just then when I ran it up to 135 mph? Hope not."