In recent years, smart wearable products can be regarded as a mixed phenomenon, among which the most popular is the smart bracelet (watch). For example, traditional mobile phone manufacturers, Apple, Samsung, Sony, domestic brands such as Xiaomi, Huawei, Meizu, etc. have all launched their own smart bracelet (watch) products, and sports watch brands have also launched sports watches with intelligent attributes. In addition to traditional manufacturers, Many independent brands in China have also joined in the R&D and promotion of intelligent wearable products, such as today's leading role "Demon Lover CoBand K4 smart bracelet". Thank you Love to play computer games And the public testing opportunities provided by the Demon Lover.

1、 Product packaging

K4 takes a minimalist route in packaging. A simple square paper box, except for the front logo and back product parameters, does not have any redundant decoration. It is a clean stream in the digital world. The packaging box and internal compartment have also been designed accordingly, and the gap design has been made at the places to be dismantled and opened, which makes it quick and convenient to open and take things!

Love to play computer games, love to play devil

The main body of K4 smart bracelet adopts an oval bright surface design. The only operation key is located in the lower part of the host. The operation on the bracelet is switched through it

Got a blue one, big man Blue, what a beautiful picture

Paper instruction

The charging cable of USB port is very short and soft

Family photo: wrist strap, main body, charging cable, instructions (the instructions were put upside down)

2、 Product appearance

K4 adopts a split design. It is fashionable to use it and can be removed when charging. Fortunately, it has a long standby time and can be accepted after a few days of recharging. The wrist strap has a slight burr. The main body adopts an oval appearance design with a smooth mirror like interface, which is simple and fashionable. The heart rate sensor on the back is slightly higher than the main body, causing some pressure on the wrist. It is not used to wearing it.

After the heart rate sensor head and the mobile phone end confirm the measurement, the green light will light up to start the measurement procedure.

Charging contact

When charging is needed, plug it directly into the charging head.

The wrist strap is made of TPU skin friendly material, with slight burr at the mold closing, and the material is soft.

Metal snap

The photo taken with the wrist strap looks good. The texture of the main body is very strong. The material relationship should not be wear-resistant, and it is estimated that it will cost.

The blue color of the first hand photo is not as disharmonious as expected, and it is hard to see clearly under the strong light.

3、 Experience

Demon Lover provided customers with an independent mobile app. After connecting the bracelet through Bluetooth, it provided backstage support for the bracelet. At the initial stage, it was a little disappointed. The heart rate and steps were quite different from the actual data. The main problem was still the lack of understanding of the smart bracelet. The cost determined the market price of 129, K4 is mainly suitable for reminding, and monitoring is a reference.

The APP interface is clear, and you can select functions according to your own needs. The built-in function options are quite practical. Time period, steps, distance, heat

The use of K4 also tends to be foolproof, without any complicated settings. Some only choose reminders and push content according to their own needs. There is no difficulty in using it

4、 Write at the end

After a period of experience, long sitting reminders, phone calls, SMS reminders APP message notification is a very practical option. The push of phone and SMS is suitable for noisy occasions to avoid missed calls. The reminder of sitting for a long time is suitable for office people. Sitting for a day every day is very bad for health. With the regular reminder of K4, physical activity is good for health. I don't know whether the push of APP is not very successful due to firmware problems or other reasons, As long as 129 gives you health tips and various push, what trains do you need?

If you want a more accurate real-time monitoring function, it is recommended to purchase a professional heart rate belt or a sports watch with professional heart rate function.

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