Dec 18, 2018 - 06:18 AM
Thank you for contacting Biobidet Support.
The USPA-6800 is the base model.
The USPA-6800U (Ultimate) has a couple of additional features.
- Night Light
- User 1 and User 2 presets (Nozzle position and Water Pressure)
- Duel sided remote
Source: USPA Ultimate