# Best electric toothbrushes with USB charging Source: https://brushandfloss.co.uk/best/best-electric-toothbrush-usb-charging Publisher: Brush and Floss. Picks are based on what the Amazon listings state, not on hands-on testing. Method: https://brushandfloss.co.uk/how-we-pick Most electric toothbrushes in the UK still charge from a two-pin bathroom plug, which is fine at home but awkward in a hotel, at a desk or in a bathroom without a shaver socket. USB charging solves that, but it comes in different forms. Some brushes have a travel case that charges from USB, others use a USB-A cable or stand for everyday charging, and a few include both a USB lead and a wall adapter. This guide compares seven Philips Sonicare models, since Philips is the brand whose listings here mention USB, on which part charges by USB, whether a lead or adapter is included, what other charger comes in the box and which plug is supplied. All facts are from the Amazon listings. None of these listings mention USB-C, so assume USB-A unless the maker says otherwise. ## Products ### 1. Philips Sonicare DiamondClean Prestige 9900 - Sonic Electric Toothbrush with 1x A3 Premium All-in-One Brush Head and Charging Case in Midnight Blue (Model HX9992/12) Case type: Prestige USB charging case; Case charging: USB lead and wall adapter included; Home charger: Charger base; Battery: Not stated; Plug: UK 2-pin bathroom plug This 9900 Prestige set lists a USB charging case with its own lead and wall adapter, plus a base for home. Ideal if you want to charge from a laptop or adapter. In its favour: - The Prestige USB charging case comes with a USB lead and wall adapter, so the case can charge the handle on the move. - SenseIQ senses pressure, motion and coverage up to 100 times per second, according to Philips, and adapts intensity. - A separate charger base is included for home, so the travel case does not have to double as your daily stand. Good to know: - Only one A3 Premium All-in-One head is in the box, which means buying spare heads early. - This listing does not state the number of modes or battery life in days, so check the manual before a long trip. ### 2. Philips Sonicare 7500 Series Sonic Electric Toothbrush − Next-Generation Sonicare Technology, Pressure Sensor, 12 Brushing Settings, SmarTimer, 21-Day Runtime, Charging Travel Case, Black Modes: 4 modes, 3 intensities; Display: Not stated; Battery: 21-day runtime; Start-up help: Not stated A quoted 21-day runtime means the 7500 rarely needs charging, and a light ring shows when pressure is too high. A low-fuss choice for daily use. In its favour: - The title quotes a 21-day runtime, the longest battery figure in this guide. - A visual pressure sensor lights up when you brush too hard. - Four plainly named modes: Clean, Sensitive, White and Gum Health. Good to know: - The USB-A charging stand comes without a power adaptor. - No display or EasyStart is mentioned in the listing. ### 3. Philips Sonicare 7100 Electric Toothbrush, Sonic Toothbrush with App, 4 Brushing Modes and 3 Intensity Levels, Pressure Alert, EasyStart, SmarTimer, Navy Blue, Model HX7421/08 [New Technology] Modes: 4 modes, 3 intensities; Display: Not stated; Battery: Not stated; Start-up help: EasyStart The 7100 adds EasyStart and SmarTimer to a pressure sensor that also lowers vibration. Four spare heads mean fewer trips to buy replacements. In its favour: - EasyStart and SmarTimer are both named in the title. - The pressure sensor flashes purple and reduces vibration when brushing is too hard. - Four G3 heads and a charging travel case are included. Good to know: - The four modes are not named, which makes picking one less obvious. - Battery life is not stated, and no power adapter is in the box. ### 4. Philips Sonicare DiamondClean 9000 Electric Toothbrush - Sonic Toothbrush with App, Pressure Sensor, 4 Brushing Modes, 3 Intensity Levels, Charging Stand, USB Travel Case, White, Model HX9911/63 Modes: 4 modes, 3 intensities; Display: Not stated; Battery: Up to 14 days; Start-up help: Not stated The DiamondClean 9000 states up to 14 days per charge and reminds you when to change the head. A reliable choice that rarely needs attention. In its favour: - Philips states up to 14 days of regular brushing on a full charge. - A brush head replacement reminder removes the need to track head age. - A light ring at the base shows when pressure is too high. Good to know: - Only one C3 head is included in the box, so spares are needed early. - Four modes and three intensities give 12 settings, more than some users want. ### 5. Sonicare DiamondClean Smart 9400 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 4 Brushing Modes and 3 Intensity Levels, Black, Model HX9917/89 Gentle or sensitive setting: 3 intensity levels; Intensity levels: 3; Pressure feedback: Light ring flashes; Modes: 4 The DiamondClean Smart 9400 lets you pick from 4 modes and 3 intensity levels, with a flashing light ring if you press too hard. A good mid-point. In its favour: - Four brushing modes and three intensity levels, with a light ring on the handle that flashes if you press too hard. - The box includes two heads (A3 Premium All-in-One and G3 Premium Gum Care), a charging glass and a USB charging travel case. - Brush head detection is listed in the title, and the handle connects to the Philips Sonicare app for brushing guidance. Good to know: - The listing does not give a battery figure in days, so you cannot plan trip length from the page alone. - There is no SenseIQ automatic intensity reduction here; that feature is reserved for the Prestige models in this range. ### 6. Philips Sonicare 7900 Electric Toothbrush, Sonic Toothbrush with App, Advanced Whitening, 4 Brushing Modes and 3 Intensity Levels, Pressure Sensor, Charging Travel Case, Pink, Model HX9631/18 Timer: Brushing timer; Pressure feedback: Handle pulses; App: Sonicare app; Travel case: USB charging travel case The 7900 adds a USB charging travel case, four W2 heads and app insights. A good fit for teens who travel for sport or school. In its favour: - A USB charging travel case lets the brush top up from a laptop or USB plug. - Four W2 Optimal White heads are included. - The Sonicare app gives a personalised dashboard and guidance. Good to know: - Pressure feedback is a gentle pulse, which is easier to miss than a light. - Battery life is not stated in the listing. ### 7. Philips Sonicare DiamondClean Electric Toothbrush Dual Handle Pack, with USB Charging Travel Case & Charging Glass- Black & Rose Gold (UK 2-Pin Bathroom Plug) - HX9392/39 Handles: 2; Heads in box: Not stated; Chargers: Charging glass; Cases: 2 USB travel charging cases; Modes: 5 An older DiamondClean pair with five named modes, a charging glass and two USB travel charging cases. Suits couples who travel often. In its favour: - Two USB travel charging cases, one per handle, so each person can charge away from home. - Five modes: Clean, White, Sensitive, Gum Care and Polish. - A charging glass sits on the shelf, and the pack uses a UK two-pin bathroom plug. Good to know: - The listing does not state how many brush heads are in the box. - No pressure sensor or app is mentioned, unlike the newer DiamondClean 9000 pairs. 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