The Xiaomi Mi Band 3 is currently one of the most popular fitness trackers in the market, and its successor seems to be close to release. The Xiaomi Mi Band 4 has been certified by the NCC certification body in Taiwan, which is an official certification body in the country, think of it as Taiwan's FCC.
Truth be said, the NCC does not specifically mention the Mi Band 4, but this is clearly Xiaomi's upcoming fitness tracker, so it's either the Mi Band 4, or something in-between. The time frame fits for the Mi Band 4, though, as the Mi Band 3 was announced at the end of May last year. The device got certified in XMSH07HM and XMSH06HM variants, the first variant is shown in the gallery down below, while the second one comes with NFC and will quite probably be identical in terms of the design.
As part of the certification process, NCC actually posted images of the device itself, without its strap. Now, it seems like the Mi Band 4 will be somewhat different when it comes to the design, compared to the Mi Band 3, but the general shape of the phone will remain pretty much the same.
The Xiaomi Mi Band 3 features a concave capacitive home button on the front, and even though a home button will be present on the Mi Band 4, it will not be a concave one. Right above that home key, a display will be located, and we're presuming that this will, once again, not be a colored display, mainly due to the device's price tag and battery life.
This fitness tracker will have quite thick bezels all around, and it actually seems like a downgrade in terms of the design compared to the Mi Band 3, as that concave button really did add to the device's design, at least as far as the front side of the device is concerned. Not only does the concave button looks better, but the bezel was much thinner between that button and the display, and it is on this alleged Mi Band 4.
Those of you wondering if the heart rate sensor will make a comeback, the answer is yes, as it is located on the back of the device, which was also shown by the NCC. It seems like the Mi Band 4's charger will remain pretty much the same as for the Mi Band 3, as you will have to remove the Mi Band 4 from its strap, and slide it into the plastic charger.
There are two pogo pins included on the Mi Band 4 and also inside of this charger. On the other end of the line, you will notice a USB Type-A connector which you will be able to plug into a regular USB port, be it on a charging brick, your PC, or wherever else. The device will support regular charging according to the NCC, though considering it has a really small battery which will be able to keep the device alive for weeks, that's not really an issue.
The Xiaomi Mi Band 4 will probably arrive with a regular silicone strap, just like its predecessor, and you'll have plenty of colors to choose from. The Xiaomi Mi Band 3 was extremely affordable when it launched, it was priced at only $26 in China (the NFC variant was a bit more expensive), while its price tag in other regions was just a little bit higher. The XIaomi Mi Band 4 is actually expected to continue that tradition, so the Mi Band 4 should cost well under $50 as well, but we're only guessing.