Save big on Philips Sonicare DiamondClean toothbrushes on Prime Day

Philips Sonicare DiamondClean: £125.44 £89.99 at Amazon
Like all Sonicare toothbrushes, the DiamondClean pulses water between your teeth to help sweep away the plaque broken up by the brush. It has five brushing modes, and lasts up to 14 days on a single charge.

Philips Sonicare DiamondClean 9000: £340 £129.99 at Amazon
There's over £200 off this premium electric toothbrush for Amazon Prime Day. It offers four brushing modes with three intensities, and a pressure sensor to detect if you're applying too much force. It will also detect the type of brush head attached automatically, and alert you when it needs changing.

Philips Sonicare ProtectiveClean 4300: £65.99 £49.99 at Amazon
A great toothbrush for travellers, the ProtectiveClean 4300 uses the same sonic technology as more expensive Sonicare toothbrushes, alerts you when the brush head needs changing, and comes with a hygienic carry case to keep your brush clean.

Oral-B Genius 9000 CrossAction electric toothbrush: £120 £69.99 at Amazon
Amazon has slashed a huge chunk off the price of this top-end electric toothbrush, with five cleaning modes, a pressure control sensor (which slows the brush and warns you if you're pressing too hard) and Bluetooth connectivity so you can monitor your technique using the Oral-B app on your phone.

Oral-B Genius X Luxe Edition electric toothbrush: £177.15 £129.99 at Amazon
Get almost £50 off Oral-B's smart electric toothbrush on Prime Day, with motion sensors to give you real-time feedback on your brushing technique, a pressure sensor to help protect your gums, six cleaning modes (including sensitive and whitening), and app connectivity via Bluetooth.

Oral-B iO8 Black Ultimate Clean electric toothbrush: £449.99 £210 at Amazon
The iO8 Ultimate Clean is Oral-B's top-end toothbrush, and it's less than half price for Amazon Prime Day. It features six brushing modes, a colour display, smart pressure sensor, lock-in-place magnetic charger and position detection as you brush.

Oral-B Smart 6 6000N CrossAction electric toothbrush: £88 £54.99 at Amazon
This premium electric toothbrush is fantastic value for Prime Day, and packs many of the same features as brushes costing twice as much (or more). It has five brushing modes, mobile app connectivity via Bluetooth, a pressure sensor, and a battery life of up to two weeks on a single charge.