We have this one. Dolphin Nautilus CC Plus Robotic Pool Vacuum Cleaner — Wall Climbing Capability — Top Load Filters for Easy Maintenance — Ideal for Above/In-Ground Pools up to 50 FT in Length
https://a.co/d/8qKrgQy
It’s not the top of the line but it does a good job. It doesn’t specifically state that it will do along the water line but it does. It’s not programmable. So it basically runs around blind for two hours. It’s amazing how much stuff it picked up the first time we used it. Very obvious the pool cleaning company wasn’t doing their job. We also bought a set of the ultra fine aftermarket filters. They pick up even more than the included filters.
If there’s any downside to this unit is that it’s not smart. If we leave it unattended it likes to get up on the sun shelf and wrap itself around the umbrella. lol