This is a 1.3 inch screen multi-functional smart bracelets. It is compatible for iOS 9.0 and above, for Android 4.2 and above. It will give you nice experience.
Features:
Stay in touch for messages, you will not miss important message or incoming call.
Support to monitor heart rate and bloods pressures continuously.
Multiple sport modes, scientific analysis to manage your health.
Fitness wristwatch, you can check your daily data on it.
Easy to use and perfect for running and outdoor sports.
Support IP67 water resistance function, which can better avoid damage from washing hand, water splashing, rain, etc.
Support BT 4.0, for Android 4.2 and above, for iOS 9.0 and above.
Low consumption, over 8 days standby time.
Durable and comfortable to wear.
Functions: Time date batterys weather display, sport, heart rate, bloods pressures, sleep monitor, applications remind, message notification, answer and refuse the call, sedentary reminder, reminder for drinking, shake the bracelet to take photo, find bracelet, alarm clock, restore factory settings, anti-lost...
Specifications:
Screen: 1.3inch colorful
Color: Black, Gold, Silver, Black&Green(Optional)
Mpdel: F8
Material: ABS+ PC 
Strap Material: TPU
Earphone Material: Silicone
Clasp Type: Buckle
BT: BT 4.0
Compatibility: for Android 4.2 / iOS 9.0 and above
Batterys: 1*3.7V 110mAh lithium batterys
Charge: USB charging
Standby Time: about 8 days
Functions: Time date batterys weather display, sport, heart rate, bloods pressures, sleep monitor, applications remind, message notification, answer and refuse the call, sedentary reminder, reminder for drinking, shake the bracelet to take photo, find bracelet, alarm clock, restore factory settings, anti-lost...
Water-Resistant Level: IP67
Total Length: 270mm/10.63in
Item Size: 41*23*8mm/1.61*0.91*0.31in
Item Weight: 59g/2.08oz
Package Size: 227*57*33mm/8.94*2.24*1.3in
Package Weight: 151g/5.33oz
Package Lists:
1*Smart Bracelets Base
1*USB Cable
1*User Manual