As the hottest product line in the smart wear market at present, not only some start-ups have launched their own products, but also giants like Xiaomi and Huawei are planning to take a share. Faced with the fierce competition in the market, Fitband took a step back and launched a bracelet dedicated to sleep management to seek the market with professional functions.

Basic parameters

• Main body size: 42 × 22 × 12.5mm

• Wristband size: Wristband circumference 230mm

• Buckle length: 140mm-215mm

• Charging seat size: 28 × 29 × 15mm

• Wrist strap material: TPSIV

• Weight: 22g

• Screen: 0.91 inch OLED

• Battery capacity: 85mAh

• Standby time: 3-4 days

• Waterproof grade: IP67

• Charging mode: USB charging

• Synchronization mode: Bluetooth 4.0BLE

Packaging and appearance

(There are 6 colors for the wrist strap, and the black wrist strap is evaluated this time)

▲ Traditional square packing box. The surface of the outer box is made of blue leather paper, which not only feels good, but also looks high-end and luxurious, improving the product grade.

▲ "Fit band" and other words are printed on the front.

▲ There is a product information label on the back. The shocking thing should be the unified retail price of the product, which is 799 yuan.

▲ According to the author's verification on the official website, the real price is 499. But compared with similar products on the market, they are really expensive.

▲ Open the package to see the bracelet. The entire bracelet is fixed in a paper support.

▲ The front of the bracelet is a black main body. In the case of a black screen, it is difficult for the naked eye to see the display screen inside, which increases the beauty of the product.

▲ Under strong light, the 0.91-inch OLED display screen can be clearly observed. The screen is small, but it can basically meet the time display, call reminder, step counting and other functions.

▲ The back of the main body of the bracelet is a heart rate sensor and charging contact.

▲ There is only one entity key on the whole body. In the right middle of the body, all function switching is achieved through this key.

▲ The watchband adopts the mesh processing, which not only increases the beauty but also improves the hand feel. In terms of detail processing, we can see Fitband's intentions.

▲ Metal snap, after wire drawing.

▲ The inner test of the watch band is treated with similar corrugation, which effectively prevents the wrist band from slipping, reduces the contact area between the watch band and the skin, and increases the wearing comfort.

▲ Double bayonet design, one is large and the other is small. When the buckle is buckled, there is an obvious click sound, giving the user a feedback of buckled position.

▲ Remove the wrist strap of the watch body.

▲ Tight connection between the main body and wrist strap.

▲ Charging base.

▲ There are 4 copper contacts on the back of the charging base. The connection between the base and the watch body is not magnetic, but through a plastic bayonet.

▲ The connection effect picture does not talk about beauty here.

▲ Family photo, bracelet, data cable, charging base and instructions.

Software APP

▲ It supports Android, Ios and Windows at the same time. It is rare for the smart bracelet to support Windows.

▲ There is no corresponding guidance operation when you enter the software for the first time. It seems that the official believes in the user's IQ, and you need to log in to the account to use the software.

▲ The main interface of APP consists of gold coin system, step counting system and sleep system from top to bottom, and the date can be switched by sliding left and right on the gold coin.

▲ After the software is upgraded, the synchronization key is placed in the upper right corner of the main page.

▲ APP supports one click sharing to Sina Weibo, WeChat and other common social software.

▲ Click the step counting area to jump to the motion data interface. The upper end of the interface is the step counting data chart, and the lower part is the detailed data. Compared with similar products, Fitband supports the judgment of aerobic exercise, which seems simple, but technically, this function is difficult to achieve.

▲ Four calculation cycles: daily, weekly, monthly and yearly.

▲ Click the column chart to view detailed data, which is powerful. The author is deeply attracted by this app.

▲ Click the sleep data area to jump to the sleep data interface. The four color bar graphs represent the states of light sleep, deep sleep, dreaming and waking.

▲ It also has four calculation cycles: day, week, month and year.

▲ In the sleep state, you can not only view the time in various states, but also view the user's heart rate status in real time.

Officially, Fitband's sleep monitoring is based on internationally mature sleep staging theory and sleep heart rate variability (HRV) And integrating the sleep clinical research results of Guangzhou University of Traditional Chinese Medicine, we have developed a world leading multi-dimensional sleep detection algorithm, which can detect the whole process of sleep, that is, record and count the times of shallow sleep, deep sleep, dreaming and waking, so that users can deeply understand their sleep status

▲ Setting interface.

▲ Personal information setting item, which supports avatar setting.

▲ Through in-depth research, Fitband has successfully introduced hypnotic music. When ready to sleep, FitBand can intelligently detect and play hypnotic music to make users sleep easily; When in light sleep, FitBand can realize intelligent switching music mode, that is, switching music suitable for light sleep to music suitable for deep sleep, and automatically stopping playing music after entering deep sleep, so that users can sleep better.

But everyone has different answers to the specific effect.

▲ Goal setting: You can set the daily amount of exercise and sleep time by yourself, but the set values cannot be customized. You can only select goals close to you from a limited range of options.

▲ Alarm clock and sitting reminder function, it is worth noting that Fitband's intelligent silent wake-up function, unlike many bracelets on the market, wakes up only when light sleep is detected 30 minutes before the preset alarm clock. Instead, three optional wake-up modes of 30 minutes, 20 minutes and 10 minutes are provided.

▲ The bracelet management interface.

▲ Foolish pairing mode, but the bracelet only supports connecting one mobile phone at the same time. Reconnecting other mobile phones requires unbinding.

▲ Increase the accuracy of heart rate test, which can be calibrated manually.

▲ The display mode of the bracelet can be changed manually, supporting left and right hand and closing.

▲ Sleep monitoring, the author believes that this is the most unsuccessful part of Fitband bracelet. As a bracelet that focuses on sleep function, sleep can only be detected within the set time, and cannot be automatically judged. To cancel "automatic sleep detection", you need to manually long press the physical key on the right side of the bracelet to enter the sleep mode.

▲ Cloud data download.

▲ A bracelet that pays for health only needs to wear Fitband continuously. With exercise and sleep data feedback, you will get gold coins, which can be exchanged for corresponding cash. For example, if you wear it for one day, you will get gold coins equivalent to about 1 yuan.

PC client

▲ The Fitband bracelet also adds a PC client. Although the PC terminal is quite rough, it has played a good role in some special periods (forget to bring the mobile phone, need to set the bracelet, etc.).

▲ Unified account login.

▲ Synchronization interface.

▲ Personal information.

▲ Target setting.

▲ Alarm clock reminder.

▲ Remind of sitting for a long time.

Independent use of bracelet

▲ Time display interface.

▲ Daily step counting: click the button on the bracelet to view the movement distance, goal achievement rate, movement steps and calories burned.

However, the inaccuracy of the bracelet's step counting is a common problem of domestic equipment, and Fitband cannot avoid it. After actual measurement, each step counting function of Fitband requires a recognition process. Basically, the bracelet will start to calculate the steps after moving 10 to 20 steps, and the data in the recognition process will be lost.

▲ Real time exercise can record the current stage of exercise data, exercise speed, calories and time.

▲ Heart rate test: the measured data is more accurate under static state, and the data can only be "hehe" during the movement.

▲ When the bracelet is far from the wrist, it will remind the user.

▲ When the phone is connected to the bracelet, click the key to switch to the "Find Phone Mode" and the phone will automatically sound music.

▲ Call reminder function.

Wearing effect picture

Summary

advantage

• Sleep monitoring

• Original Sleeping Aid Music

• Aerobic exercise

shortcoming

• The service life is short. It can only be used for about 3 days in normal use

• Sleep monitoring cannot automatically distinguish

• Inaccurate step counting data

• Large error of exercise heart rate

As a bracelet focusing on sleep function, the authoritative detection algorithm and the original sleep music function can really attract consumers, but in some details, the underlying algorithm is not perfect. I hope Fitband can solve this problem through firmware upgrade, while the price and price range of the smart bracelet with heart rate detection function, 499, are good.