With the advent of the era of mobile Internet, smart products around us are springing up like mushrooms. Indeed, the future is bound to be the era of smart home products and wearable smart products. Among these products, the smart bracelet, as a wearable smart product, has quickly become another battleground for the majority of manufacturers, especially mobile phone manufacturers, following smart phones due to its low cost and technical threshold. Not long ago, the well-known domestic smart bracelet manufacturer Evey launched the i7 smart heart rate bracelet, which is another masterpiece after the i5Plus. Although it is called a bracelet, from the appearance, the Ivy i7 should actually be a watch. Of course, this is just an ideological issue. It is only vaguely felt that Ivy's position on i7. Maybe there will be i9 smart watches or other series of smart watches in the future, which is just the subjective assumption of the author and does not represent the official view.

The outer package of the i7 smart heart rate bracelet uses a long strip box, with only the logo of the i7 smart heart rate bracelet on the front, which is very simple.

The QR code is printed on the back, and you can download the official app of Evian after scanning. The mobile phone needs to support Android 4.3, iOS 7.0 and above systems, and the hardware needs to support Bluetooth 4.0. This requirement is not high at present, and mainstream mobile phones can meet it.

As shown in the unpacking photo, the Ivy i7 smart heart rate bracelet is placed horizontally in the box, which can effectively reduce the curl of the watch strap.

The list of accessories, including the magnetic charging line, the user manual and the Evo appraiser card, is very honored here.

The i7 smart heart rate bracelet of Evian has a variety of colors, including Gentleman Black, Ocean Blue and Apple Green. Users can choose according to their preferences. The one I got is Gentleman Black. The dial adopts a rounded rectangular design, and has a full metal body, which has a feeling of combining hardness with softness. The surface is equipped with a 2.5D ultra-low power consumption screen, which can still be seen clearly even in the sun. The appearance is round and dripping, and the touch feel is very delicate and smooth.

The back of the dial is the international top AMS dynamic heart rate sensor and contact charging interface, which supports real-time heart rate monitoring and direct display of the bracelet. When monitoring heart rate, the heart rate sensor will emit green light, which is a necessary condition for photoelectric heart rate measurement. The green light is ordinary light, not laser light, harmless to human body, and users need not worry.

The wrist strap supports 9-hole length adjustment and adopts TDU medical grade material, which is very soft and has little irritation to the skin.

The buckle of the i7 is made of metal, which is durable and durable. It adopts a press design and is printed with the logo of Evo, which is convenient to wear and remove.

The i7 is equipped with a 100mAh polymer lithium ion battery, which is magnetically charged, and magnetic patches are set at both ends of the charging line. Because of the existence of the magnetic effect, it not only ensures the tight connection of the charging metal points, but also avoids the wrong connection direction. The design is quite ingenious.

The i7 supports IP65 waterproof, and there is no problem with hand washing, sweating, shower, etc. during normal use.

Scan the QR code on the packaging box, you can download and install the Evian Health Assistant (formerly known as Zero One), and update the latest firmware. Therefore, the following evaluation is based on the revised firmware. We have to complain that at present, the official app of Evian does not provide direct download, but needs to use App Bao. The old and new versions coexist, and the name is also a bit confused, which is easy to confuse users. It is suggested that we adapt our hardware products as soon as possible, and all of them should be unified into the latest version of the app.

The main screen of i7 is time and date. It supports three display modes of date and time, dial and digital time. The dial is most like a traditional watch

Slide right to switch functions, slide up to enter the corresponding functions, slide left to return to the main screen, and long press in the setting interface to confirm. It can directly display the steps, distance, heart rate, calorie consumption and other information by turning down directly under the main screen interface. It is very convenient in combination with the function of raising the hand to light the screen that Ivy has always had

Heart rate monitoring can view the current heart rate in real time, and the data is relatively accurate. Only when the heart rate monitoring function is started, an alarm prompt of high heart rate will appear, and it will soon be normal. The later test data is relatively accurate. The previous situation should be a firmware bug, and it is recommended to modify it as soon as possible to avoid users' worry.

Sports monitoring can be carried out under the sports interface, which supports walking, running, badminton, basketball, football, table tennis and other common sports. The official forum said that the new version needs to be switched in the APP, but it may be because the APP still has bugs. At present, the author has not found a way to switch in the APP. During the exercise, i7 will automatically identify the current exercise stage, including aerobic exercise, anaerobic exercise and fat burning. After the exercise, i7 will also give exercise summary to facilitate users to understand their own exercise status.

Information push reminder is another important function of i7, which supports WeChat QQ、 Message push, such as SMS and telephone, can display 35 Chinese characters on a single screen, and can scroll the screen. It can accommodate up to 8 messages, which is more practical than the 16 Chinese characters on the i5.

The latest version of the official supporting APP has been renamed as Ewex Health Assistant. The main interface shows the comprehensive health score, steps, distance, sleep quality, heart rate, calorie consumption, etc., which is very intuitive

The APP supports the development of exercise plans, which can be mixed with multiple exercise modes, and gives the recommended calorie consumption value and the calorie consumption value of the currently prepared exercise plan according to the entered age, height and weight, so that users can make more reasonable plans.

APP can also view the summary of historical heart rate and exercise data.

The voice assistant allows users to understand their own movement directly through voice. After testing, the recognition rate is very high, and it is very convenient to use. After getting used to it, they are even unwilling to click again.

In addition to telephone, SMS, WeChat and QQ, users can also customize the APP to be notified, making the message push function more practical.

Conclusion: Compared with i5Plus, the i7 smart heart rate bracelet adds the heart rate monitoring function, supports voice query, and makes it easier for users to understand their own body and movement. Message push can effectively remind users to avoid missing notifications. The price is 399 yuan, and it is positioned at the middle end. It is a smart bracelet that combines cost performance and practicality. It's a little pity that the official APP versions on the market coexist, and it is recommended to unify the APP version as soon as possible.