Please include the specifications of the order product when filling up your order. On the lower part portion of product image, then click "add note" to specify your prefer color, memory and specification.
(ex. Vivo V15, 128gb, 6gb RAM, Coral Red) (ex. BT HF PRO SY BT1607, Red) 
 
E02 Bluetooth 4.0 Sync Healthy Smart Healthy Bracelet Watch
Wristband Sport Gym Fitness Tracker
Stopwatch Passometer
WristWatch Phone Mate Supports Android 4.3 or Above Android Smartphones,Such us Samsung Galaxy S5/S4/ S3/ Note 4/3, Google Nexus 7/5, G3589W，LG G2/3, HTC one, One max (M7/M8)and Above IOS 7.0 or /Apple iPhone(iPhone 6(4.7)/6Plus (5.5)/ 5s/ 5c/4s)&ipad mini/ipad Air,ipad3 and other smartphone.Waterproof and IP57.