Xiaomi Mi Band 1S Heart Rate Monitor is a sport science gadget. Light-sensitive version of the real-time monitoring of heart rate. Monitor your daily fitness level, monitor your activity levels, and calculate calories burned. Achieve the daily exercise targets you set and work towards a healthier lifestyle. Suitable for sensitive skin, the band is made of TPSiV, one of the world's best thermoplastic elastomers. Its outstanding anti-UV, anti-microbial, and anti-allergic properties mean that it's unlikely to irritate even the most sensitive skin. It is soft to touch and fits snugly for ultimate wearing comfort. It is also water-resistant, perfect for any weather condition.

Feature:

* Heart rate monitor, real monitoring,recording, and planning your exercise.

* Sleep monitor, analyzes your sleep quality.

* Pedometer, record the steps you've taken while you're on shopping.

* Smart vibration alarm, wakes you gently 30mins. before the alarm goes off.

* Notifications of phone calls , so you don't miss any important calls.

Support:

• Android 4.4.2 or above, bluetooth 4.0
• iPhone 4S/5/5S/6/6 Plus with IOS 7.0 or above

Specification:

• Battery capacity: 45mAh (10 days standby power )
• Type batteries: Lithium polymer
• Input Current: 25mA
• Input voltage: DC5.0V
• Bluetooth chip: Dialog's top Bluetooth chip (Bluetooth 4.0)
• Sensor: ADI military gravity sensor
• Measurement methods: Photoelectric volume pulse wave plethysmography (PPG)
• Heart rate sensor: Optical heart rate sensor
• Equipment requirements: Android 4.4 and above versions, and supports Bluetooth 4.0 for Android smartphones
• xiaomi 4 / xiaomi 3 / hongmi Note 4G / honmi2 / xiaomiNote / honmiNote 2 (above models are required to upgrade to the latest version of MIUI);
• Adapter iOS 7.0 and above versions of iPhone 4s / 5 / 5c / 5s / 6/6 Plus.
• Bracelet unlock Supported models:

-xiaomi2 / 2S / 2A, xiaomi3, xiaomi4, xiaomiNote, xiaomi4C, honmi1S, honmi2 / 2A, honmiNote, honmiNote2 (above models are required to upgrade to MIUI6 and above), support for Bluetooth 4.0 over Android 5.0 phone

Note: newest Xiaomi 1S band's LED light only has white color , do not have colorful light

Package includes:

• Alloy body * 1
• Wrist Strap * 1
• Charger * 1
• Chinese User Manual * 1