How to fasten a fitness bracelet Xiaomi: step-by-step instructions for all models of Mi Band

Xiaomi Mi Band fitness bracelets are some of the most popular wearables due to their combination of functionality and affordable price. However, even with a simple task like fastening a strap, users often have difficulties, especially new models with a modified mounting mechanism or owners with a non-standard wrist size. In this article, we will discuss all the ways of fixing the wristbands for different generations, explain how to avoid typical mistakes, and give tips on how to care for the strap, so that it lasts longer.

Many people mistakenly think that the problem with the fastener is related to the defect of the device. 90% Sometimes it's just the wrong technique or the wrong design. 6 and Mi Band 7 magnetic locking is used, which requires precise alignment of parts, and in older models (Mi Band). 3/4) — It's a classic plastic fixture that wears out over time, and if you've just unpacked your bracelet or you've just found that your strap suddenly stopped holding on, don't rush to bring it to service -- most likely, the solution lies on the surface.

In the article you will find:

• 🔹 Step-by-step instructions for each Mi Band model (from 3rd to 8th version)
• 🔹 Video guides and diagrams with the designation of the details of the lock
• 🔹 Methods of repairing a broken fastener at home
• 🔹 Tips for fitting a strap under a child's or too narrow wrist
• 🔹 Review of alternative straps (silicone, metal, fabric) and their features

1. How to determine the type of fastener of your Xiaomi bracelet

Before you start fastening, it is important to understand what kind of mounting system you are dealing with. Xiaomi uses 4 main types of locks, and each requires a different approach:

1. Classic plastic fixator - installed on the Mi Band 1/2/3 and early versions of the Mi Band 4. It is a plastic pin that is inserted into the hole on the strap.
2. Magnetic locking, which was introduced in the Mi Band 5, is used in all subsequent models, and the two magnetic parts are attracted to each other, but require precise alignment.

To find out which lock your bracelet has, look at the inside of the strap marking the model (e.g., the model, XMSH15HM for Mi Band 7) or compare with the photo in the table below:

Important: If your bracelet is a Mi Smart Band (such as the Mi Smart Band 7 Pro), it may have a unique mounting system that is not compatible with standard straps.

2. Step-by-step: how to fasten the strap on the Mi Band 3/4 (plastic-clasp)

The plastic fixers on older models often raise the most questions, and the main problem is that the pin doesn't fix in the hole or pops out when you're moving.

Check the integrity of the pin (whether it is broken)

Clean the holes on the strap from dirt

Choose the right hole according to the size of the wrist

Make sure the bracelet is not twisted-->

Step 1: Take the bracelet so that the display is on top and the fastener is on the bottom. On the strap you will see a series of holes (usually 5-7 pieces), choose the one that matches your size. To check: if the finger passes between the strap and the wrist, the hole is suitable.

Step 2. Put a pin in the selected hole at a 45-degree angle, and then press it from above to make it snap. You should hear a slight click. If there's no sound, the lock doesn't work.

Step 3: Check the reliability: pull the strap to the sides. If it's not unbuttoned, it's okay. If the pin pops out, try another hole or check if it's contaminated.

⚠️ Attention: Do not use force when fastening! Plastic pin is easy to break if you push too hard. If it does not enter the hole, check if it bends.

If the fastener is broken, it can be temporarily replaced with a stationery clip or thin wire, but it is better to order the original strap (article for Mi Band 4 — BHR4205GL).

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If the pin falls out all the time, put some superglue (on the outside only!) into the hole, which will increase friction and improve fixation.

3. Magnetic fastener: how to fasten the Mi Band 5/6/7/8

Magnetic locks seem simpler, but they have their own nuances, and the rule is that the magnets must fit exactly, otherwise the bracelet will unbutton at the slightest movement.

Step 1: Place the bracelet on a flat surface with the display upwards. On the strap, you will see two parts of the lock: a convex (with a magnet) and a concave (with a metal plate).

Step 2. Put the two pieces together so that the convex part enters the concave part, you can feel the magnets pulling in, and if the combination is inaccurate, the lock will not lock.

Step 3: After you snap, pull the strap to the sides to make sure it's safe. If the bracelet unbuttons, try to squeeze the lock with your fingers harder - sometimes magnets need to be latched.

In the Mi Band 8, the magnetic lock is reinforced with an additional plastic lock that prevents spontaneous unbuttoning. To activate it, press the lock from top to click after combining the magnets.

• 🧲 If the magnets are weakened (the bracelet unbuttons itself), try to remagnetize them by rubbing the lock against another magnet (for example, from a speaker).
• 🔧 If the plastic fixture on the Mi Band 8 breaks, it can be replaced with a similar one from the Mi Band 7 (they are compatible).
• 🚿 Do not wash the bracelet under running water – getting moisture into the lock accelerates the corrosion of magnets.

4. Problems with the buckle: why the bracelet is not fixed and how to fix it

If you are outfollowing all the instructions, but the strap still does not hold, the reasons may be as follows:

One of the most common problems is that the strap is stretched out, and silicone loses its elasticity over time, and even the smallest hole becomes too large, and you can do this.

• 🔥 Heat the strap with a hair dryer (silicone will shrink and temporarily return the shape).
• 📍 Drill a new hole 2-3 mm closer to the lock.
• 🛒 Buy a strap with additional holes (for example, from Amazfit, they are compatible with the Mi Band).

⚠️ Warning: If you want to drill a new hole, use a drill no larger than 2 mm in diameter and work at low revs. Silicone breaks easily!

5 How to fit a bracelet under a child's or very narrow wrist

Xiaomi's standard straps are designed for a wrist of 14 cm, but what to do if the girth is smaller? There are several proven ways:

Method 1. Use additional holes.

Many straps (for example, for the Mi Band 6) have hidden holes under the silicone layer. Carefully tuck the edge with a screwdriver, you will find another 1-2 holes for a denser landing.

Method 2. Shorten the strap.

If the bracelet is still big, you can cut the extra part and fasten it with a shrink tube or tape, the main thing is not to damage the electronic module!

Method 3: Buy a baby strap.

For Mi Band, special shortened straps are produced (for example, from the brand). YOOLOON). They are suitable for the wrist from 10 cm and often come with bright drawings.

• 👶 For children under 6 years of age, it is better to choose straps made of hypoallergenic silicone (for example, models marked Kids).
• ✂️ When trimming the strap, leave a 5-7 mm reserve in case the wrist grows.
• 🔒 If the bracelet falls off anyway, fasten it with a double clasp (sold separately on AliExpress).

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For the youngest users (3-5 years old), it is better to choose the Mi Band 8 with a lockless strap - it is safer and has no small parts.

6. Alternative straps: pros and cons

If the standard silicone strap doesn’t suit you, you can consider alternatives, but note that not all of them are compatible with the original Xiaomi lock.

When choosing an alternative strap, pay attention to:

• 🔗 Type of mount: Some straps require the original module to be removed (e.g., metal for the Mi Band 7).
• 📏 Size: Refine the circumference of the wrist and compare with the characteristics of the strap.
• 💧 Waterproof: leather and fabric straps are not suitable for swimming.

To replace the strap with a metal or leather one, you'll need a screwdriver with a flat tip (usually included).

1. Carefully slap the lid on the back of the module.
2. Remove the electronic part from the silicone strap.
3. Insert the module into the new strap before clicking.

7.The care of the strap: how to prolong the life of the castle

Many of the problems with the fastener are due to improper care, and silicone, plastic and magnets require careful treatment, especially if you wear the bracelet around the clock.

Cleanup:

• 🧼 Wash the strap 1 time a week with warm water and soap (without aggressive detergents!).
• 🧻 Dry only naturally (not with a hair dryer, not with a battery!).
• 🔌 To clean the lock, use a cotton swab soaked in alcohol.

Storage:

• 🌞 Do not leave the bracelet under direct sunlight - silicone loses elasticity.
• ❄️ Avoid temperature changes (for example, do not place the bracelet near the heater).
• 📦 For long-term storage (for example, during vacation), remove the strap from the module.

Exploitation:

• 🏋️ When training with weights, wear a bracelet on a non-working arm to avoid mechanical damage.
• 💍 Do not wear the bracelet too tight – this speeds up the wear of the strap and can cause skin irritation.
• 🔋 Remove the bracelet before bed if you have sensitive skin (silicone can cause sweating).

⚠️ Attention: If you use gels or hand creams, they can get into the lock and reduce the grip of the magnets.

8. Frequently Asked Questions (FAQ)