Philips Sonicare

DiamondClean Smart (HX9924/36)

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Overall

#80 in

Electric Toothbrushes

according to Reddit Icon Reddit

Sentiment score60% positive
6
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3

Top Pros

Top Cons

Last updated: May 20, 2026

Reddit Reviews

Reddit Icongenevieveann
3 months ago

I am on my second Sonicare, first was (according to Amazon) 2016-2024 when the battery died. Reading this thread I JUST learned I could have replaced the battery, but I bought a Sonicare 9500 in 2024 and love it even more.

Reddit Iconnulllzero
5 months ago

näin necrobump niin io sarjasta 6 on se kultainen keskitie hinnan ja ominaisuuksien näkökulmasta, saat suurimmanosan lippulaivamallin ominaisuuksista mutta ilman isoa hintaa. isoin hyöty jos hyppää 9 on että saat 3d seurannan harjaamiseen 6 vyöhykkeen sijaan.

Reddit IconContent-Seaweed-6395
about 2 months ago

My last sonicare lasted over 7 years, it wasn't even dead when I ugraded to the $300 version and I have no regrets, it is something you use everyday, if not twice a day if it works it is worth it to last that long, in most cases you only have to worry about the battery losing charge and that is kind of unavoidable, unless you know of a brand that lets you repalce your own battery, although after like 10 years I would probably just want a new device with advances in tech and just general wear and tear.

Reddit Iconthe_real_snurre
9 months ago

My Sonicare with travel case (with integrated charger) is by far the best electric toothbrush I have ever used. Came here to say this.

9 months ago

Not bulky, no. And the built in charger is a blessing.

Reddit IconNancy6651
3 months ago

I've been using Sonicare toothbrushes forever. I usually get the package of 2 of them, in case I can convince my husband to use one (unsuccessful so far) or for travel. I like the one I have now since it has more "intelligence" and lets me know when to replace the brush head.

Reddit Iconchampagnepopi
4 months ago

Yup mine just broke down after 18 months (DiamondClean 9000 series) Going to order a cheaper one for replacement this time and see if it works as good

Reddit Iconlumixjourney
3 months ago

I had one of the old diamondclean models and it stopped working so i ordered a new diamondclean model from philips which was useless - i ended up buying the older model from aliexpress and it worked perfectly

Reddit Icon0nesanctum
5 months ago

I had the Philips Diamondcare, it was fun for a bit. Nifty app and timer that helped me develop better habits, but then it died. Got them to replace it, and the next one died after a year. Instead of buying another I went with the cheapest Philip that had a timer. A tooth brush that has a 2 minute timer is good by me. Probably won’t go back to diamondcare…

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