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Philips Sonicare ProtectiveClean 5100 Gum Health Electric Toothbrush (Black)
$34
$80
57% off
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Bullseye Deals via eBay has Philips Sonicare ProtectiveClean 5100 Gum Health Electric Toothbrush (Black) on sale for $33.99. Shipping is free.
Thanks Staff Member Red_Liz for sharing this deal
Features:
Thanks Staff Member Red_Liz for sharing this deal
Features:
- Improves gum health up to 100% more than a manual toothbrush
- Pressure sensor prevents over-brushing damage
- BrushSync tracks usage and alerts when to replace brush head
- 3 modes: Clean, White, Gum Care for customized brushing
- Easy-start gradually increases power; Smartimer ensures 2-minute brushing
- Battery lasts up to 2 weeks with charge indicator
- Includes handle, brush head, charger, and travel case
Editor's Notes
Written by slickdewmaster | Staff- About this Offer:
- This sale price matches this FrontPage Deal which received over 20 Thumbs Up from the community.
- Return Policy:
- 30 days returns. Seller pays for return shipping.
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Bullseye Deals via eBay has Philips Sonicare ProtectiveClean 5100 Gum Health Electric Toothbrush (Black) on sale for $33.99. Shipping is free.
Thanks Staff Member Red_Liz for sharing this deal
Features:
Thanks Staff Member Red_Liz for sharing this deal
Features:
- Improves gum health up to 100% more than a manual toothbrush
- Pressure sensor prevents over-brushing damage
- BrushSync tracks usage and alerts when to replace brush head
- 3 modes: Clean, White, Gum Care for customized brushing
- Easy-start gradually increases power; Smartimer ensures 2-minute brushing
- Battery lasts up to 2 weeks with charge indicator
- Includes handle, brush head, charger, and travel case
Editor's Notes
Written by slickdewmaster | Staff- About this Offer:
- This sale price matches this FrontPage Deal which received over 20 Thumbs Up from the community.
- Return Policy:
- 30 days returns. Seller pays for return shipping.
Community Voting
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Top Comments
tldr at the top since this is lengthy; Costco currently has the Sonicare Advanced Clean on sale for $69.99. For most use cases, this is pretty unbeatable value. You get 2 brush units (refreshed Sonicare brush units), 2 carry cases, 3 brush heads, and 2 USB-A chargers (be advised, no charging adapter included though). This is what I got when my 5300 crapped out on me. If you have an SO you can share the second brush with or just want a backup brush for whatever reason, I'd get Costco's Sonicare Advanced Clean 2 pack instead
As of mid-2025, this 5100 is now the previous generation of the Sonicare lineup and for once in recent history of tech products, that's actually pretty important as Philips introduced some non-trivial changes in the refresh. If you're shopping around and doing some research, I urge you to look for the key phrase "Next-Generation Sonicare technology" somewhere in the product description which indicates the brush you're buying is a refreshed product
I'll try and keep it brief with a few key distinctions and changes ordered in importance to me:
design flaw remediations
the previous generation of Sonicare products were plagued by a recurring design defect where a screw inside the head mechanism inevitably works itself loose. You can find tons more details about this issue by Googling or searching on YouTube the following: "Sonicare loose head." The mode of failure is eventually the screw that secures the brush head shaft to the shaft magnet manages to unscrew itself and the motor is no longer able to effectively transfer momentum to the shaft and drive brush head oscillations. I've personally experienced this twice now with my own 5300(s). One replaced under warranty and the other leaving me SOL. If you're a DIYer, repairing this is actually straightforward once you're inside the toothbrush housing, but the disassembly often leaves your brush with compromised water resistance which once again may eventually lead to failure by corrosion. Getting inside the brush requires you to gently deform the bottom casing enough to push out the internals. However, this usually leads to warped casings which don't seal properly upon reassembly. The refreshed Sonicare (products with "Next-Generation Sonicare technology" branding) now have a welded head-shaft magnet assembly and should theoretically never experience this particular problem in its lifetime
another common problem is once again, screws. previous generation Sonicare brushes had 2 screws holding the drive magnet in place, maintaining a gap of a few mm between the drive magnet and the shaft magnet. Sometimes, those aforementioned screws manage to work themselves loose and the drive magnet will slowly shift towards the shaft magnet until they make contact and now your brush is buzzing gently but no longer oscillating. Again, the fix is simple once you're inside the brush, but expect disassembly to compromise your brush's water resistance. Refreshed Sonicare brushes have this part welded in place as well eliminating the magnet gap issue
improved repairability. expanding on point 1, getting into refreshed Sonicares is significantly easier now. There's a Torx screw located inside the wireless charging dimple in the base of the brush. The gasket sealed brush base easily pulls away from the body (at least it does when new before your brush gets caked in toothpaste and water deposit buildup lol). Then you simply unclip latches and the internals pull away from the brush housing. No more pliers deforming your brush body and using tons of force trying to dislodge the super tight seal of past models. The battery is no longer soldered so if your brush's battery craps out, it's just a pop-out pop-in replacement now. Although it seems the Sonicare product line usually doesn't have issues with battery health and longevity
improved battery life. Previous gen Sonicare brushes quoted 2 weeks and realistically got 3 to 4 weeks with 2 minute brushings twice a day. Refreshed brushes have a quoted 3 weeks of usage, but I've been seeing more like 6ish weeks brushing twice a day 2 minutes each
slightly more ergonomic. the carry case for refreshed models that include one in the box is significantly slimmer and more compact if you frequently travel with your brush. the brush itself is also shorter and lighter and IMO more comfortable to hold
last since I don't particularly care about smart features or any features in general in my electric toothbrushes. as part of the refresh, Philips has trickled down some features between lineups bringing previously "next trim up" features down a trim or two
I tend to be a BIFL-minded person, but honestly I've begun to accept that electric toothbrushes are probably never gonna be BIFL material. I've looked into Oral-B and their iO lineup is the closest match performance and longevity / quality-wise when compared to Sonicare. That said, I still ended up getting another Sonicare because iO also seems to have some design and quality flaws that aren't quite as easy as Sonicare to self-repair at home including but not limited to:
mold buildup in the space between the plastic brush head housing and the metal drive shaft
brittle brush bodies that crack when dropped
brittle plastic brush head housings that crack when dropped
2 weak TIG welds securing the brush shaft to the shaft magnet (seems like if you twist the brush head forcefully enough when removing the brush head, there's a chance you snap the brush shaft off and there's no replacement part available from Oral-B. if this happens out of warranty, it's time for eBay parts or a new brush)
very rare, but occasionally people get brushes with poor quality li-ion batteries that either ship with unusually high internal resistance characteristics or rapidly degrade to the point where voltage sag renders the brush unusable unless they charge all the time / keep SoC near full
The 4100 / 5100 / 5300 etc... pre and post-USB charger refresh all have the same drive motor and same oscillation frequency. There's no difference in brushing performance and I'm inclined to believe the anecdotal claims that the refreshed 4100 is "noticeably weaker" is simply a resulting placebo effect from those particular consumers having read about the halved oscillations
The difference that's being quoted is because there's technically two ways Philips defines brush performance; there's 1) brush movements (analogous to your hand for manual brushing where one push action is 1 movement and 1 pull action is another discrete movement) and 2) brush strokes (which at least in Philips terminology is apparently the analogous push and pull, or a complete left and right sweep of the brush head). Now knowing this, if we check the 4100's product page [philips.com], if you click on "Show all product features," you'll see a feature copy box list "31000 brush strokes per minute." Comparatively, if we take a look at the 5100's product page [philips.com] and click on "Show all technical specifications," it lists under Cleaning performance: Speed - Up to 62000 brush movement/min
To reiterate, brush movement is just an atomic action (just a back, or just a forth) whereas brush strokes are a "complete" brushing action (back AND forth). Hence the 31000/62000 figures
Also a small distinction should be made. The 5100 is not a newer updated 4100, they all exist within the same ProtectiveClean family, but the 5100 has more brushing modes and features than the 4100. Another analogy to think about this is they're all the same car model of the same production year (Camry / ProtectiveClean), but the 5100 is like a Camry SE whereas the 4100 is a Camry LE. The 5300 is physically identical to the 5100 but includes additional brush heads in the packaging
Community Reviews
Philips Sonicare ProtectiveClean 5100 is a compact electric toothbrush that stands out for its stronger motor, USB charging, and extra brushing modes compared with the lower 4100. The refreshed Sonicare design also adds a welded head assembly, a welded magnet mount, easier disassembly, and a battery that can be swapped instead of soldered in. The main caution is that BullseyeDeals clearance stock has arrived opened or missing items before, even though returns were handled. It is a solid pick if you want the newer Sonicare platform without paying full price.
Common Questions (5)
The refreshed Sonicare design is easier to open and service: the base pulls apart with an internal Torx screw, and the battery is reportedly a pop-out replacement instead of soldered in. Older units often failed from a loose head screw or magnet assembly, which could be fixed but usually compromised water resistance.
No. The 5100 is a separate ProtectiveClean model with more modes/features than the 4100, and Philips lists it at up to 62,000 brush movements per minute versus the 4100's 31,000 brush strokes per minute. The refreshed 4100 also uses USB charging, but it is not the same model as the 5100.
Yes, the 5100 uses USB charging. That matters if you want a simpler charger setup, but it also means there is no plug-in charger like the older Sonicare models had.
They can arrive opened or clearly used, and some shipments have been missing items. The seller has reportedly made those orders right when contacted, so checking the box contents on arrival is important.
Costco is a strong option when it has sales on OEM heads, and Amazon is the fallback for OEM or third-party replacements. Third-party heads may be louder, less consistent in bristle firmness, and wear faster than OEM heads.
AI-generated summary based on comments from the community. Updated ago
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24 Comments
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Also, I didn't mean to imply that the 4100 and the 5100 are identical, just that they migrated the higher oscillation feature "upstream" to the 5100 in order to provide greater distinction between the models (and, primarily, to charge more of course).
that said, my very flawed very confirmation biased method of checking was to Google the following:
- sonicare "brush movements" site:philips.com
- sonicare "brush strokes" site:philips.com
which generally yielded results containing 62,000 and 31,000 respectively to brush movements and brush strokesbut at this point who knows lmfao Philips might just be playing some 3d chess pysops game with all of us
that said, my very flawed very confirmation biased method of checking was to Google the following:
which generally yielded results containing 62,000 and 31,000 respectively to brush movements and brush strokes
but at this point who knows lmfao Philips might just be playing some 3d chess pysops game with all of us
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