Xiaomi Electric Toothbrush X3U: How to use, charge and care

Xiaomi Mi Electric Toothbrush is an electric toothbrush X3U — This is a smart device that surpasses conventional brushes in cleaning efficiency. 30-50%. It is equipped with a magnetic motor with a vibration frequency to 31 000 It's a fluctuation per minute, which allows you to remove plaque even in hard-to-reach places, but in order for the brush to last long and bring maximum benefit, it's important to use it properly.

Many users are faced with the question: how to include X3U, What modes to choose for sensitive teeth, how much time to charge, and how to clean the brush itself. In this article, detailed instructions with photos, videos and life hacks from dentists, we will analyze everything from the first turn on to solving typical problems.

If you just unpacked Xiaomi X3U, Don't brush your teeth right away. First check the completeness: the box should have a brush, charger (usually with a magnetic connector), a removable nozzle and a brief instruction. Pay attention to the charge indicator - if it flashes red, the device must be charged before first use.

This model supports 3 cleaning modes (Standard, Soft, Whitening) that switch with a single button, and thanks to the built-in timer, the brush reminds you when it is time to change your mouth area - this helps to comply with the dentist's recommendation to brush your teeth for at least 2 minutes.

1. First incorporation and preparation for use

Before the first inclusion of Xiaomi X3U Make sure the brush is charged. Connect it to the grid with a magnetic charger (included).The indicator on the case will light up red while charging and go out when the battery is full (about through the battery). 12-14 hours at the first connection).

To turn on the brush, press and hold the power button. 2-3 The device vibrates once, so it's ready to go. If the light flashes red. 3 This means that the charge is lower. 10% And the brush needs to be recharged.

• 🔋 Charging before first use: be sure to charge the brush fully, even if the indicator shows a partial charge.
• 💧 Wash the nozzle: before the first cleaning, wash the brush under running water (no detergents.
• 📱 Connect to the app: Download Mi Home (available for Android and iOS) to track cleaning statistics and update firmware.

If the brush does not turn on after charging, check:

1. Density of the charger adjacent to the housing (the click of the magnet should be heard).
2. Correction of the socket or USB-Port (try another charger).
3. Condensation inside the case – if the brush was stored in a wet room, dry it 24 hours before charging.

Working modes and their purpose

Xiaomi X3U Offers 3 cleaning modes that are suitable for different tasks:

To switch mode, briefly press the power button while the brush is running.

• Blue 1 time - Standard.
• Blue 2 times - Soft.
• Blue 3 times - Whitening.

Dentists recommend using the mild regimen first 2-3 So if you wear braces, you should always use this regimen to clean your orthodontic structures carefully.

⚠️ Warning: Whitening is contraindicated for thinned enamel, caries and periodontitis. Consult your dentist before using.

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If the brush accidentally falls into water, immediately remove the battery (if possible) and dry the device in rice or silica gel for 48 hours.

3. Proper dental cleaning techniques

Even with a smart brush. X3U It's important to follow the right technique, or the cleaning efficiency will decrease:

1. Apply the paste: use the amount per pea. Electric brushes are suitable for pastes with RDA up to 50 (for example, SPLAT Professional or President White Plus).
2. Divide your mouth into 4 zones: upper/lower teeth on the right and left. Set 30 seconds for each zone.
3. Hold the brush at an angle of 45.° Don't push, the vibration will remove the plaque.
4. Start with the back teeth, gradually moving to the front teeth. To clean the inner surface, tilt the brush vertically.

Brush X3U equipped with an intelligent timer:

• Every 30 seconds, she pauses for a short signal to change zone.
• After 2 minutes, the vibration stops automatically (optimal cleaning time according to standards). ADA).

To clean your tongue, use the back of the nozzle (if you have one in your model) or a special scraper. Movements should be from the root of the tongue to the tip, without pressing.

Apply paste (no more than peas)|

Hold the brush at an angle of 45° gum-to-gum|

Clean each zone for 30 seconds|

Don’t push the brush – the vibration will do the job.|

Wash the nozzle after use-->

4. Charging and care of the brush

Xiaomi battery X3U It can charge up to 25 days when used 2 times a day (according to the manufacturer). However, the actual duration depends on the intensity of the modes:

• 🔌 Use only the original charger. Charges from other models can damage the battery.
• ⏱️ Full charge time: 12-14 (on the first time you have been connected — 4-6 hours.
• 🚫 Do not leave your brush on charge for more than 24 hours – this reduces the battery life.
• 💦 Before charging, dry the body if there is moisture on it.

For extension of service:

1. Keep the brush in an upright position (such as in a glass) so that the nozzle is ventilated.
2. Change the nozzle every 3 months (or earlier if the bristles have layered).
3. Once a week, clean the case with a wet wipe with 70% alcohol (do not use abrasives!).

⚠️ Note: If the brush stopped holding the charge for more than 5 days, this is a sign of battery wear. In Xiaomi service centers, you can replace the battery for 1,200-1,500 rubles (2026).

For disinfection of the nozzles:

1. Get her off the hull.
2. Place in a glass with 3% hydrogen peroxide or chlorhexidine for 15 minutes.
3. Wash it under running water.

5. Connect to the Mi Home app and set up

The Mi Home app lets you track your cleaning statistics, update your firmware, and customize reminders. Here's how to plug in. X3U:

1. Download Mi Home from the App Store or Google Play.
2. Sign up or sign in to your Xiaomi account.
3. Press. + → Add the device → Toothbrush.
4. Turn on the brush and bring the phone to it (should appear beep).
5. Confirm the pairing in the appendix.

After you connect, you can:

• 📊 See cleaning statistics: duration, modes used, missed areas.
• 🔔 Set up reminders (e.g. brushing your teeth at 8:00 and 20:00).
• 🔄 Update the firmware to improve the brush.
• 🛒 Order replacement nozzles directly from the application.

If the brush doesn't connect:

• Make sure your phone is Bluetooth enabled.
• Restart the app and brush (hold the power button for 5 seconds).
• Check that the right region is selected in Mi Home (Russia or Mainland China).

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Connecting to the Mi Home is not necessary for the brush to work, but it will help to track hygiene habits and extend the life of the device.

Typical problems and their solution

Even with a reliable Xiaomi brush X3U These are the most common and the ways to fix them:

If the brush starts to hum or creak, this is a sign:

• Water entering the body (requires drying).
• Wear of engine bearings (requires repair).
• Incorrectly install the nozzle (remove and fix it again).

For warranty repairs, contact Xiaomi service centers with a check and a box. The average repair period is 7-14 days. The cost of replacing the engine: 1,800-2,500 rubles (2026).

7. Comparison with other Xiaomi models

Xiaomi X3U — This is an improved version of the Mi Electric Toothbrush. T300. Here are the key differences:

• 🔋 Battery: X3U Keeps the charge 5 days longer (25 vs 20 days).
• 🔊 Noise level: X3U quietly by 10 dB (45 dB vs 55 dB y) T300).
• 💡 Backlight: y X3U There is a charge level indicator (y) T300 — just a low-charging signal).
• 📲 Support for Mi Home: X3U synchronize, T300 — no.

Compared to the flagship Xiaomi Oclean X Pro, X3U loses:

• Number of modes (3 vs 5 in Oclean).
• Maximum vibration frequency (33,000 vs 42 000 oscillations / min).
• A smart pressure sensor (Oclean brush stops when pressed).

However, X3U It wins in price (about 2,500 rubles vs 5,000-6,000 for the Oclean X Pro) and ease of use, X3U — best-choice.

8. Advice of dentists on the use of

We consulted with dentists to gather useful recommendations for Xiaomi users X3U:

• 🦷 For sensitive teeth: Use a mild regimen and paste with hydroxyapatite (for example, SPLAT biocalcium).
• 🚫 Do not share your brush with others – it spreads bacteria (even after washing).
• 🕒 Brush your teeth 30 minutes after eating, especially if the food was acidic (citrus, soda.
• 🪥 Keep a brush in the bathroom? Close the toilet lid before flushing -- splashes can carry bacteria onto the brush.

Dr. Ivanov A.S. (dentist-therapist, experience of 12 years):

"Electric brushes like Xiaomi X3U It's actually more effective than manual, but only when used correctly. The main mistake patients make is pushing too hard. The brush has to slide over the teeth, not rub paste. Also, remember to clean the interdental spaces with a flossom, no brush can replace it completely."

If, after use, X3U There is bleeding gums, this may be a sign:

• Too hard bristles (replace the nozzle with Soft).
• Gingivitis or periodontitis (see your dentist).
• Paste allergies (try hypoallergenic, for example, ROC).

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An electric brush removes plaque more efficiently, but does not cancel professional cleaning at the dentist. The recommended frequency of visits is 1 time every 6 months.

FAQ: Frequent questions about Xiaomi X3U