When I removed the brush head to replace it with a new one, the connecting peg in the handle came off with the brush head. Now it will not stay in the handle -- it stays in the brush head and the head comes off while I am brushing my teeth. I have used and loved Philips Sonicare toothbrushes for years, but this one is a real disappointment.

Definitely a different sensation given the high frequency pulsations. I follow the timer even though I thought I wouldn’t and it helps me keep my brushing even across all quadrants of my mouth. I love that the 4500 comes with a travel case as well - very handy! I’ve used my toothbrush on a trip for 20 days now and the battery indicator is JUST now telling me I should charge it soon. Fantastic!

I have had a Sonicare electric toothbrush for about 20 years and it finally bit the dust. I purchased this one due to mid-range price and it not offering much less than the "superior" toothbrushes. This is super lightweight, which might be a good thing, but it feels so cheap. The handle (body) is also smooth and looks really nice - I bought black) but it is slippery. The older ones had a rubber body.

Our first Sonicare toothbrushes lasted for several years. However we have had to replace 1 Sonicare Healthy White toothbrushe after 4 months and then that new one quit working just after the 12 month warranty period. We are very hopeful that this model will last long enough to make it worth the money spent.

I've always been good at dental care. Not perfect but average. My mom has worked in the dental field most of my life so I've always been on top of going to dental appointments, getting cleanings. This toothbrush is like seeing a dental hygienist every morning and night! It makes your teeth feel so clean. I've always noticed a difference with whitening the short time I've had it.

I’ve been an electric toothbrush user most of my life, so when I saw the DiamondClean Smart brush at my dentist’s office I had to inquire about it. I figured I’d give it a try since I’d had such good service for many years, and since the Smart brush promoted so many technologically advanced features that I could use and appreciate. I was not disappointed; besides my dentist recommending it, I discovered so many features from the well-written operating instructions to include type of cleaning options, brush replacement notification, indications of needing more focus on certain areas of teeth, and appropriate pressure indications. Moreover, I find Philips customer service to be efficient and responsive, ensuring my continued use of their products.

Great product its very easy to use.

The two settings are a nice option. This toothbrush gives a deep clean

Light, and well designed. Loves it’s mobility. Battery life is as advertised.

I've used Sonicare products for many years and like their features and dependability.