The development of smart wearable devices has achieved some achievements, especially the representative products of smart bracelets and smart watches. But is anyone thinking about it? In the near future, we will choose to wear a bracelet or a watch. To be sure, in general, users will not wear smart bracelets and watches at the same time. Therefore, when we consider the question of who will dominate the wrist and watch, the first thing to consider is the difference between the two.
Functionally speaking, almost all bracelets include fitness step, sleep monitoring, vibration alarm, call reminder, calorie calculation "basic five items", and a small number of bracelet products support heart rate measurement. However, in summary, the bracelet is mainly used in the field of motion monitoring.
In terms of functions, I think that smart watches can be divided into two categories: one is mobile phone accessories, and the other is independent terminal. Smart watches that are positioned as mobile phone accessories generally have information viewing, call alert, and motion monitoring functions. Generally, there is no GSM module, so you can't make a phone call, just as an extension of the phone function. Such smart watches represent Galaxy Gear2. The biggest feature of being a stand-alone terminal is that it has a GSM module, which is independent of the mobile phone and can be used to make calls directly on the watch. There are a lot of similar watch crowdfunding items on the kickstarter, such as Omate truesmart.
From the solution point of view, the main chip used in the smart bracelet is mainly a general-purpose MCU, such as the Cortex-M0 series. The watch mainly uses AP, and the typical solution is LG Watch's Snapdragon 400 mobile phone chip. The reason for the difference between the main chip selection is mainly related to the functions realized. The wristband is mainly responsible for motion monitoring. The function is relatively simple, and the high-performance MCU can handle it. The watch carries the function better than the bracelet, and some watches integrate GSM. With the GPRS module, to implement these functions, it is necessary to use the mobile phone AP. It is worth noting that with the rapid development of wearable devices and the maturity of the industry chain, platforms based on wearable chips have also emerged, such as Junction's JZ4772-based platform Newton and Intel's Quark-based platform Edison.
From the perspective of product form, the main difference between the bracelet and the watch is the display screen and the way of operation. Most of the bracelets on the market display a single way, either use a few LEDs to display relevant information, or completely remove the display device, the operation is also extremely simple, and only for simple function switching, such as the millet bracelet With the button settings, the fitbit switches the sleep state by tapping continuously.
The display of smart watches is much richer, and the most widely used are LCD screens and electronic ink screens. LCD screen belongs to the traditional display screen, the technology is mature, the price is cheap, but the high power consumption, the electronic ink screen can be bent, and supports 16 gray scale display, but the night vision effect is general.
Although the bracelets and watches on the market are obvious and easy to distinguish, the difference is not absolute, and the boundaries between the bracelet and the watch are gradually blurred. Recently, Microsoft released the smart band Microsoft Band, built-in optical heart rate sensor, three-axis accelerometer, gyroscope and other 10 sensors, the display device is a TFT full color touch screen. Microsoft's bracelet not only has detailed health management functions, but also can view text messages and answer calls, both in appearance and function, and gradually tend to smart watches.
Some insiders also said that for what is a smart bracelet, what is a smart watch, no one has an accurate definition, so the industry has a common saying, if the manufacturer's product is called a bracelet, it is defined as a smart bracelet, nominally a watch, It is defined as a watch. The reason why there are differences between watches and bracelets at this stage is mainly due to the insurmountability of some technical obstacles, such as power consumption and accuracy. Needless to say, power consumption is a top priority for the entire mobile device industry, and accuracy refers to the reliability of the physical parameters collected by products such as wristband watches. Especially in the field of mobile medical, the reliability of data parameters is related to human health, especially important. .
What happens if the basic technical difficulties that plague the wearable industry are overcome? I think that at that time, bracelets and watches will be used more and more in more real areas. In the field of mobile medical, bracelets and watches collect human body vitals data, and the data is transmitted to the cloud for professional analysis, thus giving a specific and reasonable conditioning solution, instead of simply counting and inaccurate as it is now. Calorie calculation. At the same time, in the field of mobile payment, bracelets and watch products can also have a wide range of applications. With the built-in NFC chip, it is very convenient to complete the payment function through simple touch, which is convenient and effective.
At that time, the smart bracelet or smart watch worn on the user's wrist will no longer be strictly differentiated, because the two are no longer simple mobile phone accessories or health monitoring products, and will become the mobile entrance of the human body Internet cloud. In view of the current development speed of the wearable industry, such an era will soon come.
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