Before introducing the operation and function, I must interrupt one thing, because this should not be mentioned in all online unpacking texts or application experiences, and that is the white form. There are two models of M400: black and white. In fact, the white model is very pleasing, but it is very annoying to maintain, because it is simple, dirty and stained and cannot be washed off. In the past, Polar used to sell F4F pink as a symbol of love and hate. We have all suffered from the loss of luster of light-colored watches, so many other brands have disappeared, and white watches are always painful. However, since RCX3 resumed its white watch, POLAR has once again proved to users that it is a big step ahead of other brands in this respect.
The standard of M400 is H7 chest strap, which adopts the latest Bluetooth smart Bluetooth transmission technology. Both the heart rate transmission mode of M400 and the data synchronous transmission of App use Bluetooth (so does Loop, and the V800 is even a full set of Bluetooth sensors, bicycle speed sensors, lap speed sensors and power meters). This is a new generation heart rate meter with brand-new design and specifications. Unlike most competitors such as G brand or T brand, they call themselves Bluetooth specifications. In fact, they either use the old Bluetooth technology to mix audio and video, or just need the synchronization of the App, that is, Bluetooth, and the heart rate transmission still uses ANT+ at the same level as POLAR 2.4 GHz wind. This kind of low-standard and high-priced out-of-box text is full of web pages, which is difficult for ordinary people to distinguish.
Bluetooth intelligence is the standard of a new generation of fitness equipment, which is also 2.4GHz high frequency, but it saves more electricity and has more stable signal transmission. Although the cost is higher, it is more standard and compatible. We will choose and expand more accessories, and of course the price of goods will be cheaper. Therefore, it is definitely the wisest choice for us to buy brand-new Bluetooth products, because the expansion and compatibility after going to Polar F4F Pink can rest easy.
POLAR H7 adopts Bluetooth intelligent technology, which not only saves electricity and has stable transmission, but also couples with M400 or mobile phone (fitness app) on the market very quickly. Almost, the transmitter is locked and the watch immediately displays the heart rate value. I also used it on Loop and V800, and it's the same! In addition, the interface of data transmission (synchronization) has also changed greatly. In the past, high-end models had to work through individual exclusive accessories such as USB IrDA infrared, WebLink or DataLink, which was really "inconvenient" for users who used the two models. M400 is the same as Loop and V800. It is simple and convenient to upload (synchronize) data when charging. And if you use more than two models, Flow will automatically help you count, so don't worry about data overlapping or covering.
In addition to the standard date, hour and minute, the M400 also added a stopwatch; Take a closer look, she can already display Chinese (simplified), and you can also choose to display the name (the user name of FLOW Web login) or the time to display extra large words. Of course, you can also show your activities on the surface to remind yourself at any time. These personalized designs will definitely make you wear them outside.