[Preface]

This is an Evian I7 smart heart rate bracelet that is currently being tried by Lei Feng, the first media of intelligent hardware terminals in the mobile Internet era. The smart bracelet is a kind of functional wrist strap with scientific and technological content, which is different from the traditional wrist strap. It has health management functions such as step recording, alarm, message pushing, and sleep monitoring. The I7 tested by Lei Feng.com is different from other bracelets. It can not only measure heart rate, but also is a beautiful watch.

[Its packaging]

The packaging style of I7 is very simple. It has a white strip appearance, with the word IWOWN printed on the front and the label of "Lei Feng for Trial Use" pasted on the side; On the back is recorded the relevant parameter values of I7 bracelet.

[Its whole]

Open the outer package, it is a black Evo I7 intelligent heart rate bracelet lying flat, surrounded by a hard sponge. I7 has many colors, and this one in my hand is classic black.

I7 adopts the world's top AMS dynamic heart rate sensor, with real-time heart rate monitoring function. Its biggest highlight this time is that the body has been replaced with a 316L all metal and capacitive touch screen, and the screen material uses a memory display screen (ink screen) with luminous function, which also has a good display effect in strong light; At night, it can also be very good to raise your hand and light up.

The appearance of this bracelet with a screen allows us to read incoming calls, SMS messages, WeChat and other information without taking out the mobile phone during the movement, and can view real-time movement data at the same time, choosing a different way for the movement.

The whole body has no buttons, and the waterproof grade is IP65. It can be waterproof through personal testing. When washing, you can directly use water, such as daily rain, hand washing, etc., but you can't soak in water for a long time. All functions can be operated by directly sliding or clicking on the screen for simple data such as time and basic data, except through mobile phone APP applications.

It supports Android 4.3 and iOS9 and above operating systems, is equipped with Bluetooth 4.0 module, and can be connected to mobile phones with an effective distance of about 10 meters.

The size of the fuselage is 39 * 31 * 8.4mm, which is much smaller than the advertised picture. Although the overall metal fuselage is used, the weight is only about 30g, which is not very heavy during wearing, even can be ignored; The screen is 2.5D high-strength glass with strong scratch resistance; The corners around are also very round.

[Its back]

On the back, it is composed of a heart rate sensor and a bracelet for charging. The heart rate sensor is slightly prominent, with a built-in 100mAh polymer lithium battery. The standby time can reach 7 days after the automatic heart rate monitoring function is turned on, and 30 days after the automatic heart rate monitoring function is turned off. However, in the actual experience, the standby time will also be shortened due to the amount of information pushed.

This I7 is equipped with a dual core processor. There are three metal contacts in the charging area. The top of the contact is a heart rate sensor, which can monitor for 7 * 24 hours. It can emit green light, but it will also have some impact due to the interference of ambient light.

[Its wrist strap]

The wrist strap is made of medical grade TPU silicone material, and the way of fixing is to choose the buckle. One section with a metal buckle can be fixed through the other end, which is not easy to fall off; As far as its practicability is concerned, there is no need to worry about the breakage like Xiaomi bracelet.

The wrist strap at the other end is reserved with nine round fixing holes.

The connection between the wristband and the bracelet adopts a standard interface design. For those who do not like the leather wristband, they can also replace it with a standard wristband made of other materials. The width of the wrist strap is 20mm, which is suitable for people with a wrist circumference of 168-218mm.

[Accessories]

[Its charging]

The charging adopts the magnetic suction type. In order to prevent the user from taking it back when charging, the opposite side of the magnet is used to draw the contact of the bracelet away from the charger. If it is installed in the opposite direction, it will not be installed due to the principle that the same side repels the other side.

[Its function]

In terms of function, it mainly adopts sliding up and down and sliding left and right. Long press the screen to exit the current mode; But in terms of practical experience, sometimes the performance of sliding is poor. In the actual experience, you can slide left to enter different function interfaces, and then slide up and down to confirm the entry. At the end, press the screen for a long time to exit, and the current motion data will be displayed.

The screen also supports black and white switching of the screen, which can be set independently according to the user's preferences; There are also 3 types of dial styles to choose from, but it is recommended to develop more different appearances.

After I7 opens the message push to be selected, it can view the corresponding functions through the bracelet after making calls, receiving SMS, WeChat and QQ messages, or even pushing messages through a preset program. However, its disadvantage is that SMS does not have the function of deleting, and it can only support the content of up to 8 SMS messages.

[Its APP application]

In the process of use, the biggest disadvantage of the bracelet and APP is that they are often disconnected and can only be connected manually. There is no complicated installation process. You just need to install according to the QR code in the manual, and then register an account. It would be more convenient to add WeChat, QQ and Weibo login functions to the start interface.

After login, you will be prompted to set some basic information, such as gender, height and weight. After setting, you will enter the main interface. The main interface is mainly divided into three parts: home page, voice and me. Comprehensive data such as target setting, steps, sleep, weight, alarm clock and heart rate are recorded on the homepage, and each data can be clicked to view the phased comprehensive situation; In individuals, it mainly includes software upgrading, personal information modification, WeChat and QQ binding and after-sales; In terms of schedule and alarm reminders, up to 6 alarm clocks can be supported. In terms of schedule reminders, up to 4 alarm clocks can be used every day, up to 32 in total. It is expected that more can be accommodated for use as notepad; What's interesting is its voice function, which adds a lot of interactive chat to the voice, and also provides current movement data, weather conditions and other information, and the voice recognition rate is also high.

Compared with viewing data through the bracelet, the APP app has more functions, which can instantly view comprehensive data such as sleep, heart rate, and walking steps. It should be that the statistics of I7's sports data are very detailed, which can intuitively understand our sports situation, and adjust the amount of exercise in the next step according to the data.

The intelligent ecological chain built by Evey and Xiaomi is different. It can't integrate the data like "Xiaomi Sports", such as bracelets and scales. For weight, it can only be analyzed by manual entry, but I7 also adds some warm tips and suggestions on the weight interface.

There is also a sitting reminder function in the bracelet. For office workers, sitting for a long time is likely to cause various physical discomfort, so they need to get up and exercise regularly. However, one of the drawbacks of the I7 APP is that it is often easy to disconnect and does not realize automatic reconnection. It can only be done manually. It is recommended to improve it.

The binding with WeChat and QQ is set in the APP application, so that the movement can be viewed on WeChat and QQ. For users who love social networking, they can share their sports to their friends circle or QQ space with one click, which adds a lot of fun.

In addition, upgrading is not recommended for current software applications. I tried to upgrade this I7 at the first time after I got it, but it failed and could not be started when I entered the DUF mode. At that time, it happened to be Saturday, but Evey took a weekend off and had to wait until Monday. During this period, I also went to Baidu and found many similar problems. But by contacting customer service, I found solutions and upgraded them at the first time. It is suggested that Evian continue to improve and optimize to avoid similar situations and bring troubles to users.

In addition to basic functions, I7 also adds GPS recording function; There are three functions in sports mode: cycling, running and walking. You can check the walking route by turning on GPS sports; However, the last trip and various statistical data cannot be viewed in the historical data, and the smart shot function is virtually nonexistent.

[Summary and Suggestions]

From the appearance, the all metal shell, ink screen and 2.5D glass of Evian I7 intelligent heart rate bracelet are very good and easy to love; GPS function is added to make the data more accurate; However, the sliding effect of the touch screen needs to be improved; APP applications such as GPS movement history data cannot display routes and data; Heart rate can not be synchronized in time; The smart auction does not play a practical role, and it is in vain; It is easy to be disconnected, and even if the disconnection reminder is turned on, the reminder function has not been realized, and it can only be manually connected continuously; The upgrade failure rate is high and the repair method is not disclosed in time.

In general, although the appearance and data are relatively accurate, the sliding experience of the screen and the optimization of the APP still need to be continuously improved. Therefore, we also look forward to the early improvement of Evian in order to give users the best experience.

THE  END