Introducing the second-generation CZ smart hybrid, the smarter smartwatch with *18-day battery life. The Citizen CZ smart hybrid smartwatch with 44 mm stainless-steel case and black silicone strap marries the iconic design you expect from citizen with innovative science and technology brought to you in the proprietary new wellness app, Youq. CZ smart Youq leverages AI models built with IBM Watson® studio and research from nasa to provide a 24-hour forecast ahead, helping you anticipate patterns of fatigue and alertness. Youq then offers highly personalized insights and suggested actions to help you improve alertness and promote the building of better habits, readying you to meet whatever the day may bring. The CZ smart pq2 hybrid watch is compatible with both iphone® and android™ and runs on the citizen connected app. Use the Citizen connected app to manage your notifications and customize your dials to stay on track with the convenience of information at a glance on your hybrid smartwatch display. Additional functionality from the Citizen connected app delivers the latest golf report and live sports. You can even sync to your nest, or august®, yale® lock smart systems and other features through the riiiver platform. Battery life varies based on usage. This device and its related software are not intended for use in the diagnosis, cure, mitigation, treatment or prevention of disease or other conditions. Citizen smartwatches work with phones running the latest version of android™ or iOS. Supported features may vary between countries with compatibility subject to change. iPhone is a trademark of Apple, inc. Number of Batteries: 1 Included: 1 Watch(es) Features: Receives Texts, Receives E-Mail, App Notifications, Caller Id, Chronograph, Batteries Included, Smartphone Compatible, Water Resistant, World Time, Bluetooth Compatible, Receives Calls, Vibration Alert, App Download Required, Alarm, Built-In Speakers, Date Function, Quick Ship Battery Type: Rechargeable Jewelry Closure: Buckle Power Source: Battery (included) Tech Compatibility: Android, Apple Ios Tracking Capability: Steps, Heart Rate, Distance, Sleep Quality, Calories Burned, Activity Tracking, Time Watch Movement: Hybrid Water Resistance: 30m Band Color: Black Dial Color: Black Metal Color: Silver Tone Case Thickness: 14mm Case Width: 44mm Watch Band Length: 10 Inch Band Content: Silicone Case Materials: 100% Stainless Steel Band Width: 22mm Care: Wipe Clean Country of Origin: Imported Quick Ship items ship directly from the manufacturer within 3 to 5 business days. Photos are enlarged to show detail.