Hello Kitty smartwatch one size in pink model #hk4152jc. Features 10 changeable watch faces, clock, timer, stopwatch, alarm, 26 games, voice recorde and much much more.  Each kids watch comes with a rectangular case approx 40mm and with an approx. 8 inch silicone strap with buckle clasp for saftey and security. Each watch is splash proof water resistant up to 10 meters and comes with a 1 year limited warranty. Number of Batteries: 1 Included: 1 Watch(es) Features: Adjustable, Multi-Function, Touch Screen Enabled, Comfort, Water Resistant, Alarm, Customizable Watch Faces, Digital Display, Pedometer, Quick Ship Battery Type: Lithium Ion Character: Hello Kitty Jewelry Closure: Buckle Power Source: Battery (included) Tech Compatibility: Android, Apple Ios Tracking Capability: Time Watch Movement: Smart Watch Water Resistance: 10m Band Color: Multicolor Dial Color: Multi-Color Case Thickness: 12.7mm Case Width: 40mm Watch Band Length: 8 Inch Band Content: Silicone Case Materials: 100% Plastic Battery Size: Sr626sw Band Width: 18mm Care: Wipe Clean Country of Origin: Imported Do not submerge in water. Quick Ship items ship directly from the manufacturer within 3 to 5 business days. Photos are enlarged to show detail.