Please include the specifications of the 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 other specification.
(ex. Vivo V15, 128gb, 6gb RAM, Coral Red) (ex. BT HF PRO SY BT1607, Red) 
•    24/7 Wearable Design 
•    Sleek, light body for exercise and everyday comfort 
•    Full color AMOLED Screen 
•    1-week battery life - supports NFC Wireless Charging 
•    5ATM water resistance with MIL-STD-810G rating for durability 
•    Workout Tracker 
•    Continuous HR Tracking 
•    Sleep and Stress Monitoring 
•    Notifications for calls, messages, alarms, etc. 
•    Compatibility: Samsung Galaxy, Android 5.0 or above with more than 1.5GB RAM iPhone: iPhone 5 and above, iOS 9.0