A heart attack is the leading cause of death for many people according to healthday.com In a simple word, heart rate is how many times your heart beats for a minute, the number is can be affected by numerous factors. This powerful device not only can inform you about your heart rate but also able to detect various health problem.
The heart rate monitor is based on a difficult to pronounce technology called photoplethysmography, but it basically comes down to using green LED lights paired with light‑sensitive photodiodes to illuminate your skin and measures changes in light absorption. This lets the device detect the amount of blood flowing through your wrist at any given moment. Because blood is red, it reflects red light and absorbs green light. “When your heart beats, the blood flow in your wrist — and the green light absorption — is greater. Between beats, it’s less,”.
The sensor is designed to compensate for low signal levels by increasing both LED brightness and sampling rate. That’s why the heart rate sensor on the back of the device flashes its LED lights hundreds of times per second, helping the device calculate heart rates precisely.
But when it measures your heart rate every ten minutes, the Smart Wrist Watch switches to using infrared light. And if it fails to provide an adequate reading while using the infrared light, the device switches back to the green LEDs.
In order for the sensor to work as advertised, the Smart Wrist Watch must be close to your skin. The company advises tightening the band in case the sensors aren’t reading your heart rate accurately.
Through find the phone function, there will be no worries of missing phone again when a mobile phone is beyond the valid Bluetooth distance (6m-10m) with the device, the smart band will vibrate to remind.
Continually track your daily life in 24 hours, work 5 days by one charge, it is really convinced, fast and your close partner.
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Style: Sport Screen Type: OLED Waterproof Grade: Life Waterproof Band Detachable: Yes Touch Screen: Yes Screen Style: Rectangle/Square-shape Case Material: Zinc Alloy Band Material: Genuine Leather Compatibility: Android, IOS Compatibility: Above Android 4.4 Version, IOS 8.0 Version (BT Support) Screen Size: 0.66 inches Band Size: 26CM Wearable Length: 30CM Connection Parameter: Bluetooth 4.0BLE (low power) Battery Type: Polymer lithium battery Battery Capacity: 110mAh Charging Method: Magnetic suction type Charging Time: About 2 hours Standby Time: 8 - 15 days Data Storage: 7 days Appearance Material Front shell: Powder metallurgy/Back shell: ABS + PC/Strap: Silicone Function: Blood Pressure, Passometer, Sleep Tracker, Blood Oxygen, Heart Rate Tracker, Alarm Clock Language: Korean, Russian, Spanish, English, German, Italian, Japanese, French
Package Included: 1 x Smart Band / 1 x Charge Cable1 / x Manual Guide
0.66 inch OLED Display
Waterproof smart bracelet
Dynamic and static blood pressure, heart rate, blood oxygen;