Fossil is a well-known smartwatch brand that offers a range of stylish and functional smartwatches with a distinctive circular design.

watchOS is the operating system specifically designed for Apple smartwatches, providing a seamless and user-friendly experience.

NFC (Near Field Communication) is a technology that enables smartwatch users to make contactless payments by tapping their watch on a compatible payment terminal.

The primary function of a smartwatch's heart rate monitor is to measure and track the user's heart rate.

Garmin is a leading brand in the smartwatch industry, particularly known for its rugged and outdoor-focused smartwatches designed for activities like hiking, running, and cycling.

Tizen is the operating system used in Samsung smartwatches, providing a customizable and feature-rich experience.

Bluetooth connectivity enables smartwatches to pair with smartphones, allowing users to receive notifications, messages, and other alerts on their watch.

The primary purpose of a smartwatch's GPS機能 is to track the user's location and distance traveled, making it useful for activities like running, cycling, and hiking.

Fitbit is a leading brand in the smartwatch industry, particularly known for its focus on health and fitness tracking, offering a range of smartwatches with advanced fitness features.

Wear OS is Google's smartwatch operating system, providing a wide range of features and compatibility with various smartwatch brands.

Cellular connectivity enables smartwatches to make and receive phone calls independently of a smartphone, providing greater convenience and flexibility.

The primary purpose of a smartwatch's sleep tracking feature is to analyze the user's sleep patterns, including duration, quality, and stages of sleep.

Tag Heuer is a luxury watch brand that has entered the smartwatch market, offering high-end smartwatches with sophisticated designs and advanced features.

HarmonyOS is Huawei's smartwatch operating system, providing a seamless and feature-rich experience on Huawei smartwatches.

Smart home integration allows smartwatches to connect to and control smart home devices, such as lights, thermostats, and door locks, providing convenience and automation.