Introduction

As the saying goes, "life lies in exercise". Exercise is conducive to the growth of human bones and muscles, strengthening the heart and lung functions, improving the functional conditions of the blood circulation system, respiratory system and digestive system, facilitating the growth and development of the human body, improving disease resistance, and enhancing the adaptability of the organism. It is one of the most active and effective means to enhance physique.

However, for ordinary people, too little or too much exercise is harmful. Everyone has different physique, so the amount of exercise must be determined according to their physique at that time. Sports must be personalized and scientific, that is, personalized scientific sports. How to do it Personalized science movement? This requires you to have a more accurate understanding of the amount and intensity of exercise every day. Recommend one today Good partner for sports and fitness - Love Demon CoBand K4 smart bracelet.

Solarization

The package of the received express delivery is intact.

The packaging of Demon Lover adopts more environment-friendly and recyclable kraft paper packaging, which complements the positioning of healthy movement of the product.

Only the words "Smart Band" are printed on the lower part of the front upper cover, and the upper left corner is Love to play computer games This is a trial sticker. Thank you for the trial opportunity provided by the iGo platform.

There is a white sticker on the back, marking the product name and equipment related parameters in both Chinese and English.

Remove the upper cover and take out the accessories in turn.

The contents inside are very simple, including charging line, high-quality watch strap, manual and smart bracelet body.

The main body of the smart bracelet is about half the size of a thumb, weighs only 4.2g, and has a battery capacity of 40mA. There is an OLED display screen with a size up to 0.86 inches on the front, and the position with a circle of marks on one end is the function key.

There is an optical capacitance heart rate sensor on the back of the main body of the bracelet, and a small heart rate symbol is also on the bottom.

At one end of the main body of the bracelet are two charging contacts.

It can be connected to the attached USB charging cable for charging.

The first use of the bracelet requires charging and activation. Just insert the main body of the bracelet into the charging seat and the other end into USB for charging.

The demonic CoBand K4 smart bracelet adopts a detachable split design, which is easy to disassemble. The wrist strap is made of plastic. This time, it is blue, and you can change your favorite color at any time.

The wrist strap is made of TPU skin friendly material, which has strong wear resistance, is not easy to be contaminated with fingerprint oil, and has no burden to wear.

Usage

After charging, touch the edge of the bracelet screen for more than 3 seconds, start the phone and shake, the screen lights up, and it can be used normally. In daily use, raise your hand to light up the screen. Say goodbye to the troublesome touch screen. On the OLED screen, the Bluetooth connection status, time, date, and remaining power are displayed.

Tap and press the function key, and the steps, kilometers, calories, and heart rate data will appear in turn.

In order to better use the bracelet, you can scan the QR code on the instruction manual to download the supporting Demon Lover APP.

Opening the APP starts with a four page product introduction.

Log in and join the Demon Lover, fill in the relevant personal information, and you will enter the main page.

Click the bracelet logo in the upper right corner, and it will bind the CoBand K4 smart bracelet of the Demon Lover, and you can synchronize the time.

You can also set the functions related to the mobile phone ring, such as long sitting reminder, call reminder, bracelet alarm, SMS reminder and APP message reminder, so that you won't mistake every important phone call and SMS.

The sitting reminder, bracelet alarm and APP notification reminder are all very humanized, which can provide some help to the friends who often sit for a long time.

You can also switch between horizontal and vertical screens according to your preferences.

The APP also integrates health management functions, which can record weight, measure heart rate and sleep quality.

The heart rate detection of the bracelet adopts the principle of light sensing heart rate, that is, it is measured by the principle of light reflection. The heart rate bracelet generally uses a green photosensitive photodiode to detect the flow of blood flowing through the wrist at any time. When the user's heart beats, more blood will flow through the user's wrist, and the absorption of green light will be greater. When the heart beats, the blood flow decreases, leading to a reduction in the absorption of green light. The heart rate signal is effectively monitored and extracted through complex and precise algorithms.

The APP has also designed the social function of ranking and adding friends.

Summary

Demon Lover CoBand K4 smart bracelet is a step counting bracelet for sports enthusiasts. It has multiple data measurement and recording functions such as kilometers, calories, steps, sleep, heart rate and so on, providing better sports health management.

Disadvantages: The sports mode only has standard sports functions, and there is no commonly used running mode; The standby time is less than 10 days. It is recommended to strengthen the algorithm to further reduce power consumption; The charging line must be dedicated, and care must be taken to avoid loss.

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