While we look forward to the June 11 launch of the Xiaomi Mi Band 4, the wearable device is already available for interested buyers to pre-order on AliExpress. The device is listed by a third-party retailer known as Mr. Carl and it bears a $49.99 price tag with free shipping.
The listing did specify that the variant on offer is the standard (non-NFC) version with a black rubber strap. The NFC version will likely not be released at the same time as the standard version, going by the Band 3’s launch. 
EDITOR’S PICK: Xiaomi Mi Band 4 poster reveals the design, a colour display with several colorful watch faces
The listing confirms the Mi Band 4 to pack a 135mAh battery onboard which we don’t know its durability range since there is a coloured display at play on this version. The device will also have a curved OLED display but the curvature isn’t as pronounced was that of the Band 3. In addition, the device will have the latest Bluetooth 5.0 support.
We must point out, though, that since the device will be launched in China first, what will be shipped will be the China version but we doubt if there is any major difference with the model that will eventually be released overseas in India, Europe and elsewhere outside China. Also, the shipping date is not certain as it is dependent on when Xiaomi decides to start selling the Band 4 in China after the launch. The first sale is expected to take place not too long after the June 11 launch. You can check out the AliExpress store from the source link below.
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