Smart watches and smart (sports) bracelets are the most typical wrist-mounted devices in wearable devices. In addition to traditional sports steps, such devices have gradually introduced motion track recording, heart rate detection, brushing public transportation, mobile payment and even The function of generating an electrocardiogram becomes more and more powerful. So, how to choose a more value-for-money and more suitable for your wrist equipment?
Watch and bracelet contest
Choose a smart watch or a smart bracelet? This problem is plaguing many consumers.
The advantage of the smart watch is that the screen is bigger, the cool dial can be replaced at any time, the Alipay payment code and other images can be easily displayed, and the 4G networking or calling function can be realized by installing the SIM card, thereby deriving the children’s telephone watch and the high-end business watch. And other categories. Products pre-installed with the Android Wear system can also install a proprietary APP, which replaces the work of the smartphone to a certain extent, but the more the smart watch function, the more expensive it is.
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However, smart watches that are pre-installed with Android Wear system or the main call/networking function have a life time of only one day. For consumers who never leave their smartphones, many functions of high-end smart watches are actually It is repeated with the phone.
There may be children’s shoes to ask, smart watches also include non-Android Wear system and does not support the call products, such devices last up to a week or so, also have notifications, heart rate detection, mobile payment and other common features, choose these products Not more cost-effective?
In theory, but don’t forget that there are smart bracelets on the wrist in addition to smart watches. Nowadays, most of the new bracelets have introduced OLED touch screens, which can achieve more than 90% of the smart watch functions, and the price is also greatly reduced, while also providing lighter wearing comfort and longer lasting life.
In this environment, what reason do we have to “close (cheap) to seek far (expensive)”?
Behind the smart bracelet
In the subconscious of many users, the small smart bracelet is definitely not as good as the smart watch in terms of function. This view may be established in 2017 or earlier, but from the second half of 2018, the latest smart bracelet is listed. Screen quality, touch control, sports health monitoring and special features have all been greatly optimized, and their prices have become more intimate.
So, when we choose the smart bracelet, what aspects should we start to investigate?
Screen display and operability
The screen material of the smart bracelet is very important. The screen of OLED material can provide better display quality and has the advantages of energy saving. The higher the screen size and resolution, the message reminder of SMS, WeChat, QQ, etc. You can display more text on the same screen.
In order to facilitate the user’s operation, the screen of the new smart watch has added touch function. Whether the operation is smooth and the operation logic is reasonable is also the focus of our assessment.
Is motion monitoring more accurate?
Sports step is the most basic function of the smart bracelet, but at this stage, sports enthusiasts pay more attention to the recognition of the sports mode (such as outdoor running, indoor running, cycling, free training and swimming), can be in the APP Generate accurate motion trajectories (requires simultaneous positioning via GPS, GLONASS and Beidou).
The above functions require a higher-end gyroscope, multi-axis sensor and navigation positioning chip built into the wristband, which is one of the easiest links between the smart bracelets.
Is health monitoring more “heart-to-heart”?
Heart rate monitoring has become one of the standard functions of smart bracelets. The principle is to illuminate the skin through the PPG photoelectric sensor on the back of the bracelet, and to generate heart rate data by reflecting the change in blood vessel volume when the blood flows.
Since all bracelets are equipped with PPG photoelectric sensors as standard, the competition between different brands is statistical algorithm. Some big brands (such as Huawei) will choose to cooperate with the authoritative medical center to monitor the heart rate for 24 hours. Clinical comparison verification can be performed in some hospitals.
In addition, there are still a lot of smart bracelets on the basis of PPG also added ECG ECG chip (expressed as two metal pieces on the back of the bracelet, the monitoring principle is “ECG signal method”, the bracelet needs to be tested The back is close to the skin), and the combination of the two can generate an instant electrocardiogram.
It should be noted that doctors generally do not adopt such self-harvest data at the clinic, so the alertness of the ECG generated by the smart bracelet is much higher than the medical value. When the ECG generated repeatedly shows abnormality, we will seek medical treatment as soon as possible. Reminder.
Can I make mobile payments?
As long as the screen resolution of the smart bracelet is fine enough, it has a potential function – mobile payment. Through the APP corresponding to the mobile phone, the Alipay client and the smart bracelet can be bound, and the QR code or barcode of the Alipay payment can be called up at any time on the wristband screen. Even if the mobile phone is not around, the wristband can also perform the scan code payment.
It can be said that mobile payment is the killer core selling point of the smart bracelet. However, since the bracelet payment can be taken offline, once the bracelet is lost, there is a risk that the person who is caught in the bracelet will steal the brush. Therefore, when the bracelet is lost or you don’t want to use it again, you need to enter the Alipay client to remove the authorization for it.
The possibility of replacing a bus card
Many smart bracelets are subdivided into standard and NFC versions. With NFC, smart bracelets have the potential to brush buses or even access cards.
However, the card functions of which cities can be opened need to be based on the brand influence and promotion of specific bracelet manufacturers. If you want to replace the bus card with a hand ring, you need to filter according to the smart bracelet supported by the bus system in the city where you live.
More features
In addition to the above core functions, the smart bracelet can also implement a number of special features, such as looking for a mobile phone, remote control camera and volume/cut song control when listening to songs. Whether the strap of the bracelet is detachable, whether the strap material is skin-friendly, whether it can achieve IP67 or higher waterproof, we also need to pay attention to it.
