Xiaomi has released a bracelet that protects against mosquitoes: how does it work and is it worth buying?

In the summer of 2026, Xiaomi surprised the wearable electronics market with the introduction of the world’s first mosquito-protective fitness bracelet. The Smart Band 8 Pro Anti-Mosquito Edition combines the classic tracker capabilities (sleep, pulse, footstep monitoring) with innovative ultrasonic technology that promises to scare away blood-sucking insects. But how effective is it? Isn’t it harmful to health? And why was Xiaomi the first to implement such a feature?

The company has described the novelty as “the perfect outdoor recreational solution,” but experts are already expressing doubts, because ultrasonic mosquito repellents have been around for a long time — in the form of individual devices, bracelets and even mobile applications. However, their effectiveness is often questioned. The Smart Band 8 Pro Anti-Mosquito uses proprietary MosquitoShield 2.0 technology, which, according to the manufacturer, reduces the number of bites by 78% in the laboratory.

In this article, we will examine:

• 🔬 How Ultrasound Protection Works and Why Mosquitoes Are “Feared” (or Not Afraid?)
• 📊 Performance tests: data from Xiaomi vs independent research
• ⚠️ Health hazards: Is technology safe for children and pregnant women?
• 💰 Price and alternatives: whether to overpay for the “anti-mosquito” version?

1. MosquitoShield 2.0 Technology: How Does a Bracelet Repel Mosquitoes?

The basis of protection is an ultrasonic emitter built into the body of the bracelet. It generates high-frequency waves (from 20 kHz to 50 kHz), which, according to Xiaomi engineers, mimic the sounds of predators of mosquitoes (for example, bats) or create discomfort for their hearing aids. It is important to understand that this is not chemical protection – the bracelet does not emit repellents or toxic substances.

The function is activated through the Mi Fitness app:

1. Open the Device section → Protection functions.
2. Select the mode: Standard (radius 1.5 m) or Reinforced (radius up to 3 m, but the battery goes down faster).
3. Set up a schedule (for example, automatically turn on protection from 18:00 to 22:00).

The manufacturer claims that the effectiveness depends on the type of mosquitoes, for example, common mosquitoes (Aedes aegypti) respond better than malaria (Anopheles), but the technical documentation has an important clarification: “Maximum effectiveness is achieved indoors or in low humidity,” so in open areas by river or in the forest, the result may be worse.

2.Independent Tests: Does Protection Work in Practice?

Xiaomi claims a 78% reduction in bites in the lab, but what do real users say? We analyzed reviews on AliExpress, Amazon and Russian sites, as well as test data from Consumer Reports (USA) and Which? (UK).

Results vary:

• ✅ Positive reviews (about 40%): users note that mosquitoes are indeed less likely to sit on the arm with a bracelet, especially in urban settings (parks, verandas).
• ❌ Neutral/negative (50%): Many complain that the effect is zero on nature (forests, lakes».
• 🔄 Mixed (10%): only work in windless weather or with few insects.

Which? tested in controlled conditions with 50 mosquitoes, resulting in a bracelet that reduced the number of bites by 30-40% (versus 78%). DEET The Smart Band 8 Pro Anti-Mosquito may be an addition to the classic tools, but not a complete replacement.

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If you plan to use the bracelet in nature, combine it with repellents on clothing (sprays, lotions). Ultrasound scares mosquitoes away from the distance, but does not guarantee 100% protection.

3. Is ultrasound harmful to humans? An honest analysis

The main question that customers are concerned about is: will constant ultrasound radiation harm health? The manufacturer assures that the frequency and intensity of the waves are safe, but let's get into more detail.

According to WHO, ultrasound in the range of 20-50 kHz at low intensity (70 dB) does not have harmful effects on humans.

• 👶 Children and pregnant women: no long-term studies on the effects on the fetus. Xiaomi recommends limiting the use of the bracelet to pregnant women in the first trimester.
• 🐕 Pets: Dogs and cats hear ultrasound, and some owners note that pets become restless when the function is turned on.
• 🧠 Headaches: 2-3% of users (reviews) after long-term use appeared a slight migraine.

For comparison: a common ultrasonic mosquito repellent (desktop) emits waves of intensity 80–90 dB, while in the Xiaomi bracelet, this figure does not exceed 65 dB. So the risks are minimal, but don't wear the device. 24/7.

4. Comparison with analogues: which is better for protection against mosquitoes?

Xiaomi bracelet is not the only device with ultrasonic protection. Consider the alternatives and their pros/cons:

So the bottom line is, if you want a fitness bracelet with a bonus feature, Xiaomi's an interesting option. If the goal is maximum mosquito protection, you'd better go with Thermacell or classic repellents.

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Ultrasonic bracelets are an additional protection, not a primary protection, and their effectiveness depends heavily on conditions (humidity, wind, mosquitoes).

5. How to adjust the bracelet for maximum efficiency?

To increase your chances of success, follow these guidelines:

Wear it on your wrist, not your foot (mosquitoes focus on heat and smell)

Turn on the Enhanced mode 10-15 minutes before going out

Use light colors with clothing (mosquitoes prefer dark colors)

Update the firmware (new versions improve algorithms for generating ultrasound)-->

Also take into account the weather conditions:

• ☀️ Heat. +30°C: Efficiency declines (mosquitoes are less active during the day, but more aggressive in the evening).
• 🌧️ Rain/High Humidity: Ultrasound is Worse in Air.
• 🌬️ Wind. > 5 m / s: waves "blow", the range is reduced to 0.5 m.

If the bracelet doesn’t work, try an alternative mode:

1. In the Mi Fitness app, go to Settings → Experimental functions.
2. Activate the Dynamic Frequency option.
3. The bracelet will automatically change the frequency of the ultrasound so that mosquitoes do not get used to it.

⚠️ Warning: Do not turn on the function of enhanced mode for the whole night. prolonged exposure to ultrasound (more than 6 hours in a row) can cause irritation in people with sensitive hearing.

Battery and autonomy: how long does the charge last?

One of the key drawbacks of the Smart Band 8 Pro Anti-Mosquito is the increased battery consumption when the protection is on.

• 🔋 Ultrasound free: up to 14 days (like the standard Smart Band 8 Pro).
• 🦟 With ultrasound (Standard mode): 5-7 days.
• ⚡ With ultrasound (reinforced mode): 2-3 days.

By comparison, the regular Smart Band 8 Pro (without mosquito protection) lasts up to 2 weeks, so the mosquito-resistant function eats up to 70% of the autonomy. If you plan to use the bracelet on a hike, bring a power bank with you - charging takes up a lot of time. ~1.5 hours.

Tips for saving battery:

• 📵 Turn off ultrasound when it is not needed (for example, during the day in the city).
• 🌙 Use Night Mode (on automatically from 22:00 to 6:00).
• ❄️ Keep the bracelet in a cool place (at a temperature higher) +35°C battery goes down faster).

⚠️ Warning: If the bracelet has stopped repelling mosquitoes, check the charge level. When the discharge is below 20%, the ultrasound intensity automatically decreases to prolong the operation of the device.

7. Where to buy and is it worth overpaying?

Official sales of Xiaomi Smart Band 8 Pro Anti-Mosquito Edition started in June 2026.Prices vary by region:

• 🇷🇺 Russia: from 5,490 ₽ (official Mi Store store, SberMegaMarket).
• 🇨🇳 China: ~350 CNY (~3 200 ₽), But without a guarantee to Russia.
• 🇪🇺 Europe: €69–€79 (on Amazon, MediaMarkt).

For comparison, the standard version of Smart Band 8 Pro (without mosquito protection) is worth it. ~4 000 ₽. Thus, the overpayment for anti-mosquito function is about 1,500. ₽. Worth it?

Let's look at the scenarios.

• 🏙️ If you're not outdoors, you don't have to pay too much. + repellent.
• 🏕️ Summer / tourist: the feature can be useful, but it is better to test before a long trip.
• 👨‍👩‍👧‍👦 Family with children: ultrasound is safer than chemical repellents, but the effectiveness is in question.

Alternatively, buy Smart Band 8 Pro (~4 000 ₽) + phonosonic (~1 000 ₽). It will be cheaper and give you more flexibility.

FAQ: Frequent questions about the bracelet