27% of 22 verified Philips Sonicare ProtectiveClean 4100owners don't recommend it — based on real owner comments from Reddit, enthusiast forums, and YouTube.
For balance: 64% recommend it. This page collects the complaints so you know what you're signing up for — read the full owner report for both sides. How we score
“it is a) super loud, and b) feels like it's stinging my gums”— @SrslySylli on YouTube
“I just bought it but feel so harsh to my teeth”— @thegoldenboy294 on YouTube
“it splashes water into my face while rinsing under water”— @MrTjm339 on YouTube
“shit build quality, packaging total garbage, high price for such a terrible offering”— @hans_sagmir453 on YouTube
“When I set it on the case it wobbles all over the place.”— @RobertLofrano on YouTube
“The vibration is very strong hurting my teeth and gum”— @vahidaria3510 on YouTube
“The 4100 is SOOOO weak compared to the 5100. I still have plaque on my teeth after flossing, water picking, and using the brush for the full two minutes.”— PersonNo_31899 on Reddit
“I have had two 4100s that stopped holding a charge after just a year of frequent but not regular use. I find that utterly ridiculous and unacceptable.”— Sensitive_Charge3501 on Reddit
“I just bought the 4100 to replace my 5100 that I had used for over 5 yrs. I so regret not buying the more advanced model again.”— Tami4077 on Reddit
“I ended up getting that because I felt my 4100 was quite weak”— Checkmateth on Reddit
“Yes my 4100 lasted less than two years.”— Necessary-Ad8859 on Reddit
“Regret buying 4100”— dontgetmadgetdata on Reddit
Not complaints — practical notes from owners that didn't affect the score.
“Colgate Optic White Renewal Teeth Whitening Toothpaste - mild flavor; I feel like it did an excellent job at whitening my teeth as I prepared for a big event, but over the course of time, which allows it to be more sensitive and not as hostile as many whitening products. I think the packaging references 10 weeks...”— evicci on Reddit
“Yes, see page 21 here https://www.manua.ls/philips/sonicare-protectiveclean-4100-sonic-hx6812/manual They also include some nonsense pamphlet in the box about how they are helping the environment by using a recyclable box. It's all pretty disappointing.”— abonnema on Reddit
“Awesome guys - thank you all for the thoughtful replies... sounds like consensus is to buy a Sonicare (some say oral-b, but I think I've seen more votes for sonicare all over the internet) electric toothbrush and just get a tongue scraper to keep near it... that sounds good to me.”— OlegRu on Reddit
“https://www.usa.philips.com/c-p/HX6817_01/sonicare-protectiveclean-4100-sonic-electric-toothbrush Looking at this. Basically hoping the sonic function works as a nerve stimulator/massage thing. 😁 Other than that, it's basically the timer function that I am looking at. Don't have a clock in the toilet for some reason.”— ambermyrrr on Reddit
“Just don't get the super cheap $25 one.”— TheOlderWoman on Reddit
“Me being cheap, I usually try to go 4-6 months on single brush head instead of the recommended 3. I usually change it when I notice a difference in perceived mouth cleanliness.”— ram_gh on Reddit
“I think the reason he is saying that is that the 4100's motor has been downgraded compared to the older ones. The old 4100 had a motor speed of 62000 movements per minute, while the new 4100 has a motor speed of 31000 movements per minute.”— SuperMacintosh on Reddit
“Someone in this post said that the old 4100 motor is in the new 4300, and that newer 4100 models have half the RPM”— BoncaJarvis on Reddit