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Xiaomi Mi Band 4: Everything you need to know!
August 14, 2025
Update: June 16, 2025 at 12:42 p.m. ET:We’ve published our full Xiaomi Mi Band 4 review! Check it outright here.
The Xiaomi Mi Band 4 is here and we have all the details for you. Find out where to buy the Mi Band 4, learn about the fitness tracker’s specs and features, and more in this article.
Xiaomi Mi Band 4 price and availability
The Mi Band 4 is officially available in China and the U.K. (where it’s known as the “Xiaomi Mi Smart Band 4,” while U.S. residents will have to import the fitness tracker from another website such as Amazon.
Pricing is as follows:
There are two versions of the Mi Band 4. The international variant is sold, well, internationally. It doesn’t come with NFC or an AI voice assistant, though it does carry a cheaper price tag. The China-only variantdoeshave NFC for contactless payments viaAlipayand public transportation payment support. It also has Xiaomi’s Xiao AI assistant. Thus, this version is more expensive.
There’s actually a third special-edition Mi Band called the Xiaomi Mi Band 4 Avengers Limited Edition. This model comes with three different Avengers-themed straps: grey with an Avengers logo, blue with a Captain America logo, and red with an Iron Man logo. It also comes with a certificate and a special nameplate. This model is available for 349 yuan (~$51 USD).
Xiaomi Mi Band 4 review
Is the Xiaomi Mi Band 4 worth the $40 asking price? Or should you buy a comparable device like theFitbit Inspire HRor theSamsung Galaxy Fit? We have the answer for you in ourXiaomi Mi Band 4 review!
Xiaomi Mi Band 4 specs and features
The Mi Band 4 is very much a refresh of theMi Band 3, so it’s not a complete redesign. However, Xiaomi took our biggest gripes with the Mi Band 3 and fixed them in the Mi Band 4.
The Mi Band 4 has a 0.95-inch colorAMOLEDdisplay. It’s bright enough to see outdoors, and you’re able to even control your smartphones music with it. It’s also the same size as the Mi Band 3, so you can use your Mi Band 3 bands on your Mi Band 4!
Let’s talk specs. The Mi Band 4 has a5ATMwater resistance rating,Bluetooth 5.0support, and a battery that will last 20 days on a single charge.
It doesn’t have a built-inGPS, though it does have a connected GPS feature for tracking your distance and pace using your phone’s GPS. It also has aheart rate sensorthat can hold its own against other wrist-based heart rate sensors.
From a software standpoint, the Mi Band 4 is a nice upgrade from the Mi Band 3. It can now track pool swimming and has a generic “exercise” mode for tracking miscellaneous cardio workouts.
The Xiaomi Mi Band 4 is also a decentsmartwatchalternative — It can show you notifications from just about any app you have on your smartphone. It also supports a variety of different watch faces, has a do not disturb mode, built-in alarm, on-device weather app, and even a “find my Mi Band” feature if you happen to misplace it.
Anything else you’d like to know about the Mi Band 4? Sound off in the comments!
Next:Google Fit guide: Everything you need to know about Google’s fitness platform
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