In reply to TCP:
I have a Wahoo Elemnt Bolt. It's an old one, maybe 2015 model. It's brilliant. The best features are:
Battery life - A couple of years ago I did a challenge ride on unfamiliar roads. We set off at 4am and finished at 18h. I had the navigation on for the whole time and the battery never died.
STRAVA Sync - I have it set ot automatically syncs to STRAVA. When I get back to the front gate after a ride, I click stop ride on the Wahoo. By the time I get in the house I'm getting comments and kudos on STRAVA.
Bluetooth - If you link it to your phone with bluetooth, notifications appear on the Wahoo. This is brilliant because I know when I have to stop and take an important call or weather I can ignore it. Essential when I'm out guiding a group.
Awesome bit of kit.
E