Maytronics Dolphin Nautilus CC Supreme vs Maytronics Dolphin Nautilus CC Plus

The Nautilus CC Supreme is the stronger cleaner: it scrubs walls and the waterline, not just the floor and walls, and it adds a weekly timer and delay start so it runs on its own schedule. The CC Plus with Wi-Fi is the simpler, lighter robot with app control and a 2.5-year warranty, and it handles floor and wall scrubbing well. Owners of both praise the top-load cartridge and easy lifting; the Supreme's small cartridges need more frequent rinsing, and the CC Plus lacks waterline cleaning.

• Choose the Nautilus CC Supreme if you want waterline scrubbing, scheduled weekly cleaning and a delay start on a pool up to 50 ft long.
• Choose the Nautilus CC Plus if you want a lighter robot with app control and a longer warranty and can scrub the waterline yourself.