The Philips Sonicare 7100 is a powerful, stylish, but overpriced electric toothbrush

Philips Sonicare 7100: Two-minute review

The Philips Sonicare 7100 isn’t quite as eye-wateringly expensive as the Philips Sonicare 9900 Prestige, but at £350 (around $450 or AU$715) it’s still extremely pricey for a sonic toothbrush with a lithium rechargeable battery that will eventually decay. However, it’s a gorgeous piece of kit with a powerful motor, four brushing modes, three intensities, and a couple of cool accessories such as a charging travel case (downgraded from the Prestige's leather to cheaper plastic) as well as a stand. It's definitely up there with the best electric toothbrushes on our list.

The brush is very satisfying to hold and use. It feels premium: I’m used to very plasticky cheaper electric toothbrushes, so I’m pleased to say that if you're paying all this money, the Philips at least is satisfyingly weighty and incorporates metal into its design. Coupled with the black outer shell, it’s slightly reminiscent of a lightsaber, albeit one that cuts through plaque rather than Sith lords.

At 62,000 bristle motions per minute, the Philips Sonicare 7100 is on a par with the Sonicare 9900 Prestige in terms of its brushing performance. It’s got four brushing modes (Clean, Sensitive, White and Gum Health), and each one has three intensities, for 12 brush settings in total. It’s a case of trial-and-error to find the right one for your brushing routine, and I have a sneaking suspicion that a few of these setting and intensity combinations end up being repeated, based on sound and mouthfeel alone.

However, one thing’s for sure: this toothbrush is powerful. After using my cheaper, lower-powered brush for a while, the blast of the full-power Clean setting on the Philips was surprising, to say the least – a bit like grabbing onto a metal handrail and experiencing a static shock. After prolonged usage, and with the option for such a high-power setting should I want it, I’m not sure I could go back to my comparatively underpowered usual toothbrush.

The power is evident in the motor, which does emit a moderate whine: using my phone’s decibel meter app, I measured readings of 55-57 decibels, equivalent to a soft conversation. The Ultim8 Supermouth brush, which I’m also testing, measured 44-46 decibels in comparison. The Philips is at the louder end, then, but it’s worth it for that extra oomph.

The battery life – up to three weeks – is largely immaterial, as your brush will likely either be on the charging stand or in the charging travel case most of the time. However, such a good battery life does mean that when you’re caught on the hop – for example, taking your case on long trips – that the brush will hold out and still provide a good clean.

There are only two issues I have with the Philips Sonicare 7100. The first is its price: while it’s an excellent toothbrush, it is more expensive than most in its category, although it does seem to receive frequent discounts. The second is in its name – Sonicare. This is a sonic toothbrush, which is a lot better than a manual brush, but some studies have shown that some oscillating brush heads are marginally more effective at getting rid of plaque than sonic ones. Our guide to sonic vs rotating toothbrushes can tell you more, but the power of the Philips will ensure that with regular proper usage, you’re still getting a great clean.

Philips Sonicare 7100: Specifications

Philips Sonicare 7100: Price and availability

• £349.99 in the UK (around $450 / AU$715)
• Frequently on sale
• The Sonicare Expertclean 7500 is the similar equivalent model in US and Australia
  

The Philips Sonicare 7100 is available in the UK priced at £349.99 (around $450 / AU$715). This is crazy money for a toothbrush, but it’s frequently on sale: at the time of writing, Amazon has it for £158.99 (around $205 / AU$325). I don’t know what it is about electric toothbrushes that means they're priced so highly and then get such severe and almost permanent discounts, but it’s a recognized phenomenon.

Want one in the US or Australia? Philips doesn’t sell the Sonicare 7100 there as it categorizes its products differently in those regions. However, it does sell a very similar Sonicare Expertclean 7500, with four relabelled modes (Clean, White+, Gum Health and Deep Clean) and a slightly differently-shaped charging case. That retails for $199 / AU$312.

If the Sonicare 7100 wasn’t so frequently on sale I’d consider it poor value. However, it should be fairly easy to pick this brush up for around £150-£200, which makes it a very good buy indeed.

• Value score: 3.5/5

Philips Sonicare 7100: Scorecard

Philips Sonicare 7100: Should I buy?

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How I tested

I used the Philips Sonicare 7100 for one week. I charged it using both the plug-in base and carry case, tried all the different modes on the toothbrush, and used a decibel meter app to calculate how loud the brush was compared to other brushes on the market.

First reviewed: March 2025