It is heavier and more bulky than my first Waterpik, but it holds less water. I like that it comes with 4 different heads. So far I have only used the one with a small brush, which is like my first Waterpil.
Absolutely love this product. It is more effective than dental floss or interdental piks. Love that it is cordless. I do wish I'd purchased the unit with three speeds and a slightly larger water capacity; but those are minor issues. I did not find info on whether this unit is waterproof or not.
I would recommend this to a friend!
Response from waterpik.comBy WaterPik, Product Support, March 17, 2021
We are so glad to hear you're loving the product! The WP-450 model is water-resistant, but not waterproof.
Wish it came with pik pocket tip rather than the orthodontic tip. Also the charger is a little hard to plug and unplug. Wish I had bought and used this sooner.