The 2019 Xiaomi Mi Band 4 fitness bracelet is still popular with users for its functionality and affordable price, but over time, even the most reliable gadget has problems — one of the most common: the loss or breakdown of the original charger. Unlike modern wireless charging models, the Mi Band 4 requires a special magnetic connector charging cable that is not always easy to find on sale.
How much does charging cost for Mi Band 4 today, where to buy it and how not to overpay for a fake? In this article, we will analyze the current prices for original and compatible chargers, compare the offers of popular sites (from AliExpress to Yandex Market), and give tips on how to distinguish a quality accessory from a cheap copy.
Original charging vs compatible analogues: what’s the difference?
The first thing that users face when searching for a charger for the Mi Band 4 is the choice between the original accessory from Xiaomi and cheap counterparts from third-party manufacturers, the difference between them is not only in price, but also in reliability, security, and sometimes compatibility.
Original charging (article) MJB4013GL) several key features:
- 🔌 Magnetic connector with a precise fit, which is reliably fixed on the bracelet and does not fly off at the slightest movement.
- ⚡ Optimal charging current (up to 500 mA), which does not overheat the battery and prolongs its service life.
- 🛡️ Short-circuit and overheating protection – built-in controllers prevent bracelet damage.
- 🏭 Quality Guarantee – Original accessories are controlled at the Xiaomi factory.
Compatible charging (for example, from the brands Baseus, Remax or nameless Chinese manufacturers) can cost 2-3 times cheaper, but often have drawbacks:
- 🧲 Weak magnet - the connector is poorly held, charging is interrupted when moving.
- 🔥 Overheating – Cheap controllers can deliver unstable voltages, which shortens battery life.
- ⚠️ Risk of damage to contacts – inaccurate fitting of the connector can scratch or bend the contacts of the bracelet.
⚠️ Warning: Using low-quality chargers can cause the battery to swell up Mi Band 4. If the bracelet becomes very hot or discharges quickly after charging, immediately stop using the suspicious cable!
Current charging prices for Mi Band 4 in 2026
The cost of the charger for Xiaomi Mi Band 4 depends on the type (original or analogue), place of purchase and configuration. Below is a comparative table of prices at popular sites (data current for June 2026):
| Type of charging | AliExpress | Yandex Market | Ozon | Wildberries | Offline stores (M.Video, Svyaznoy) |
|---|---|---|---|---|---|
| The original Xiaomi (new) | 600–900 ₽ | 750–1 200 ₽ | 800–1 100 ₽ | 850–1 300 ₽ | 1 200–1 800 ₽ |
| The original Xiaomi (b/u) | 300–500 ₽ | 400–600 ₽ | 450–700 ₽ | — | — |
| Compatible (Baseus, Remax) | 250–400 ₽ | 300–500 ₽ | 350–550 ₽ | 400–600 ₽ | 500–800 ₽ |
| Compatible (no-name) | 100–250 ₽ | 150–300 ₽ | 180–350 ₽ | 200–400 ₽ | — |
Important: Original charges are often sold under the guise of 100% original, but are actually quality replicas. To avoid getting a fake, check reviews (especially with photos) and seller ratings (should be at least 98%).
Offline stores typically have higher prices because of rent and logistics charges, but it is easier to return goods if they are defective, and online marketplaces (especially AliExpress) are more likely to run into counterfeits, but there is a chance of saving up to 50%.
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Before buying, check whether the protective film for contacts is included in the kit - it prevents oxidation and prolongs the life of the connector.
Where to buy charging for Mi Band 4: pros and cons of sites
The choice of place of purchase depends on your priorities: speed of delivery, price, reliability or the ability to return the product.
1. AliExpress
Pros:
- 💰 The lowest prices (from 100) ₽ no-name).
- 🌍 A wide range (you can even find rare versions of the USB-C).
- 📦 Free delivery when ordering from 3-5 dollars.
Cons:
- ⏳ Long delivery (from 2 weeks to 2 months).
- ⚠️ High risk of counterfeiting (especially under the guise of the original").
- 🔄 Difficulties with return (you need to photograph the process of opening the parcel).
2.Yandex Market / Ozon / Wildberries
Pros:
- 🚀 Quick delivery (1-5 days).
- 🛡️ Return guarantee (14 days without explanation).
- 📊 It is easy to compare prices and reviews.
Cons:
- 💸 Prices are higher than on AliExpress (20-50%).
- 🔍 Less rare models (for example, chargers with an angular connector).
3. Offline stores (M.Video, Svyaznoy, Salon of Communication)
Pros:
- 🏠 You can touch the product before buying.
- 🔄 Instant returns in marriage.
- 💳 Sometimes they give discounts on loyalty cards.
Cons:
- 💰 Highest prices (up to 100% premium compared to AliExpress).
- ❌ Limited range (often only original chargers).
⚠️ Note: Small electronics stalls (such as the subway) often sell fake chargers at the price of the original. QR-code that leads to the official website of Xiaomi.
How to distinguish the original charging from fake: 5 key signs
Fake charges for the Mi Band 4 not only work worse, but can damage the battery bracelet. To avoid running into a fake, pay attention to the following details:
- Packaging: Original charging is sold in a white cardboard box with Xiaomi logo, article (MJB4013GL) and QR-Counterfeit products are often packaged in plastic or blurry print boxes.
- Plastic quality: The original cable has matte plastic without barbs. The fakes have glossy plastic, with roughness or casting marks.
- Magnet: In the original, the magnet is strong and precisely centered. In counterfeits, it is weak, the connector can dangle or slide to the side.
- Contacts: On the original charge, the contacts (gold) are smooth and shiny, and for fakes, they are often scratched or covered with oxide film.
- Cable length: The original cable is about 20 cm long and counterfeits are often shorter (10-15 cm) or longer (30 cm)+ centimeter).
☑️ Checking the original charging Mi Band 4
If you have already bought a charger and doubt its authenticity, pay attention to the charging speed:
- 🔋 Original: Full charge in 1.5-2 hours.
- ⚡ Quality analogue: 2-3 hours.
- ❌ Fake: 4+ The bracelet or the hour is not charged at all.
Alternative ways to charge Mi Band 4 without native cable
If the original charger is lost and you can't buy a new one, you can use alternative methods, but remember: they all carry risks to the bracelet (overheating, short circuit, damage to the contacts).
1. Charging from another Mi Band
The Mi Band 3, Mi Band 5 and Mi Band 6 chargers are not compatible with the Mi Band 4 due to the different locations of the contacts, but you can try to gently press the charging contacts from the Mi Band 2 (if you still have one) - sometimes it works.
2. A homemade adapter from USB-cable
This will require:
- 🔌 Old. USB-cable (for example, from the phone).
- 🧲 Two small magnets (you can take from the speaker from headphones).
- 🔧 Insulation or heat-glue.
Instructions:
- Cut it off. USB-Circle, stain the wires (red (+5V) black (GND)).
- Seal the wires to the magnets so that they match the contacts on the bracelet.
- Insulate the connections and fix the magnets at a distance corresponding to the Mi Band 4 connector.
⚠️ Warning: If soldered improperly, you risk burning the power controller of the bracelet! If you are not sure about your skills, you should not experiment.
What happens if you confuse polarity?
3. Wireless charging (for experienced only)
Theoretically, you can try charging the Mi Band 4 via Qi charging, but you need to:
- Carefully solder thin wires to the contacts of the bracelet.
- Connect them to the receiving coil from wireless charging (for example, from an old smartphone).
- Place the bracelet on the Qi panel.
This method is extremely risky and requires rationing skills.
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Better spend 300-500. ₽ for compatible charging, than risk the performance of the bracelet cost 2-3 thousand. ₽.
Frequent Mi Band 4 charging problems and how to fix them
Even with the original cable, users sometimes face difficulties, and consider typical situations and ways to fix them:
1.The bracelet is not charged
Possible causes and solutions:
- 🔌 Dirty contacts: Wipe contacts on a bracelet and charge with alcohol or eraser.
- 🔋 Hold the bracelet on a charge for 10-15 minutes - sometimes it "wakes up".
- ⚡ Problems with USB-Port: Try another port or charger.
- 💀 Burned controller: If the bracelet does not respond at all – contact the service.
2. Charging is going too slowly.
What to do:
- 🔌 Use the charger with the exit 5V/1A (for example, from a smartphone).
- 🔋 Disable the bracelet from the Mi Fit app while charging.
- 🌡️ Do not charge at lower temperatures +10°C or higher +35°C.
3.The bracelet discharges quickly after charging
Possible causes:
- 🔋 Worn-out battery: After 2-3 years of operation, battery capacity drops by 30-50%.
- 📱 Continuous Sync: Turn off unnecessary notifications in Mi Fit.
- 🔄 Firmware failure: Try resetting the bracelet to factory settings (Settings) → Reset).
If the problem is not solved, it may be time to consider buying a new bracelet.The Xiaomi Mi Band 7 or Mi Band 8 have an improved battery and are compatible with the same charges as the Mi Band 6.