With just the one setting, it’s pretty basic, but you still do get a timer – the brush pulses every 30 seconds and switches itself off after two minutes. We also like the unusual pink, blue and yellow colour options available. While the One doesn’t have the brushing power of the larger Sonicare brushes, it’s way ahead of other battery-powered electric toothbrushes, and does a great job of leaving your teeth feeling clean and looking shiny. The relatively gentle movement is also brilliant for massaging along the gumline. Moving up to the ProtectiveClean range upgrades you to a better set of features, but without the smart app connectivity and premium accessories that make the ExpertClean and DiamondClean models more expensive. You still get the most important features, though, including a quad-pace timer, BrushSync tech and a pressure sensor – which alters the vibration to warn you if you’re brushing too hard. You also get a choice of Clean, White and Gum Care modes, plus three intensity settings per mode. Key specs – Cleaning modes: 3; Battery type: Li-ion; Accessories included: 2 x brush heads, travel case, charger; Battery life (tested): 1hr 19mins; Warranty: 2yrs The vibrating head and bristles don’t just clean the surface of your teeth, but also propel microbubbles of fluid across the gumline and in between your teeth, shifting any food debris and helping break down any plaque. This keeps your teeth squeaky-clean and your gums nice and healthy, although some floss and mouthwash will still help you maintain an effective dental regime. As before, the 3100 is compatible with the full range of Sonicare heads, and now supports BrushSync tech, with an LED indicator that lets you know when the head needs changing. What’s more, the clean isn’t far behind what you’d expect from Sonicare brushes twice the price. Sure, you only get 31,000 motions per minute where the top of the range models hit twice the speed, but your gnashers still come away feeling clean across the surface, and you get a nice, deep sweep along the gumline and between the teeth. You’ll have to pay more for extra cleaning modes and the battery life – just over 60 minutes – is disappointing, but this is still the best entry-level brush.

Philips also produces a Sonicare for Kids brush aimed at younger children, along with the Philips One electric toothbrush, which delivers basic Sonicare tech inside a slimmer, cheaper brush. Key specs – Cleaning modes: 4; Battery type: Li-ion; Accessories included: Brush head, charging cradle, travel cap; Battery life (tested): 2hrs 27mins; Warranty: 1yr As for the brush itself, it feels and works much like a mid-range Sonicare toothbrush, with four brushing modes designed for cleaning, whiting, sensitive teeth and a gum massage, and a nice, slim handle with a grippy, rubber feel. It switches itself off when the usual two-minute brush is done, and pulses every 30 seconds during use to remind you to brush another quadrant. Battery life is brilliant, with enough charge to get you through a good month of brushing before recharging via the USB cradle. Whether or not you fancy the subscription, this is a great sonic toothbrush at a very competitive price. If your budget allows, we’d opt for the ExpectClean 7300, which can often be found at a similar price to the ProtectiveClean in the sales. Nevertheless, this model still offers great value if you’re not fussed about the latest in toothbrush features and tech.The ProtectiveClean 6100 still doesn’t offer the same cleaning performance as the higher-end models, but it doesn’t feel inferior in everyday use; teeth still feel sparkling-clean after brushing. Meanwhile, you get roughly 14 days of use from a single charge – although, in practice, it’s likely closer to 20 or more before your toothbrush runs out of juice.

With any electric toothbrush, heads are a big deal. Philips manufacturers a range of different heads aimed at specific dental needs, ranging from the basic Plaque Defence and ProResults head to the Whitening heads, Optimal Gum Care heads, Intercare and A3 Premium All-in-One heads. Some other brushes may be compatible with Philips heads, but on others you’ll get a basic head with high-quality DuPont bristles, but nothing special. On the plus side, they’ll often throw in a replacement head or two, and you may find the heads cheaper to replace in future. You get three brushing modes – Clean, Sensitive, and White – with the Sensitive mode particularly easy going. The Clean and White modes give you a more in-depth clean, similar to what you’d get from a mid-range Sonicare brush. Just be aware that there’s no pressure sensor to stop you brushing too softly or too hard, and the brush shuts off automatically when your two minutes of brushing time is up. Battery life is roughly in line with the Philips Sonicare at just under 70 minutes, but that’s still more than enough to get you through a month of use without a recharge. The 7300 still isn’t what you might call cheap, but it’s a premium brush at a price you might find easier to swallow. The mid-range ExpertClean brushes add smart features to the mix and may include even more brush modes and features. You’re also likely to get more advanced battery technology and better accessories, such as a charging stand or travel case. Does it deliver a clean as good as the more expensive Sonicare models? Perhaps not. Even when you move beyond the Soft and Gum Care modes to the White and Polish options, you don’t quite get the power of a mid-range Philips brush, not to mention the alternatives from Oclean or Ordo. However, your teeth still feel clean after brushing, the Gum Care mode gives your gums a decent massage, and the Soft mode is ideal for first-time electric toothbrush users or those with sensitive gums.If you’re looking for a toothbrush for everyday use, then you might want to up your budget. The ProClinical 150 gives you a better clean than a manual toothbrush, but not the kind of in-depth clean you’ll get from rechargeable sonic brushes, nor the same smooth, polished feel on the surface of your teeth. What’s more, while you get a two-minute timer, there’s no battery indicator or even any extra cleaning modes. However, you’ve got to love the simplicity, and those with more sensitive teeth or gums may prefer its easy-going manner.

However, the top reason to get the DiamondClean 9000 is that you’ll be getting the best clean available in the Sonicare range, and one of the best from any electric toothbrush. The Deep Clean+ mode might be too much for some people, but, with three intensity settings, you can adjust the brush to suit your teeth, or simply switch to the regular Clean mode, or the White+ mode that will leave your teeth feeling polished. Meanwhile, the Gum Health mode is brilliant for treating soft, sensitive gums. READ NEXT: The best water flossers to buy The best Sonicare toothbrushes you can buy in 2023 1. Philips One Electric Toothbrush: The best electric travel toothbrushThe best sonic toothbrushes you can buy in 2023 1. Colgate ProClinical 150: Best budget battery-powered sonic toothbrush