Smart Toilet:

Use gentle solutions like water mixed with vinegar, baking soda, or Dawn dish soap. The most "harsh" product you can use is scrubbing bubbles. Avoid using straight/undiluted bleach. Always clean with a soft-bristled brush and soft cloth to protect surfaces.

Regular Toilet:

To Clean, you can use any non-abrasive toilet bowl cleaner and as for a toilet brush Woodbridge just suggests to use a soft bristle scrubber. You may use Lysol Liquid bowl cleaner and a soft bristled toilet bowl brus.