In today’s episode, you will learn a series of vocabulary words that are connected to a specific topic. This lesson will help you improve your ability to speak English fluently about a specific topic. It will also help you feel more confident in your English abilities.

1. Smartwatch (Noun): A wrist-worn device that offers features beyond timekeeping, such as notifications, fitness tracking, and app integration.
   • Example Sentences:
     1. The latest smartwatch can monitor your heart rate and track your daily steps.
     2. Many people use smartwatches to receive messages and alerts without checking their phones.
     3. The smartwatch’s GPS feature helps users navigate while hiking or running.
2. Fitness Tracker (Noun): A wearable device designed to monitor and record physical activities, such as steps taken, calories burned, and sleep patterns.
   • Example Sentences:
     1. The fitness tracker provides detailed insights into your exercise routines and overall health.
     2. By syncing with a smartphone app, the fitness tracker helps users set and achieve fitness goals.
     3. The fitness tracker’s sleep monitoring feature can help users understand their sleep quality.
3. Wearable Sensor (Noun): A device integrated into wearable technology to collect data on various physiological parameters, such as heart rate, movement, or temperature.
   • Example Sentences:
     1. The wearable sensor tracks your physical activity and monitors your health metrics.
     2. Advanced wearable sensors can detect changes in body temperature and alert users to potential issues.
     3. The accuracy of health data collected by wearable sensors depends on their quality and placement.
4. Heart Rate Monitor (Noun): A device that measures the number of heartbeats per minute, often incorporated into wearable technology for fitness and health tracking.
   • Example Sentences:
     1. The heart rate monitor on my smartwatch helps me track my cardiovascular fitness during workouts.
     2. Wearing a heart rate monitor during exercise can help optimize training intensity and performance.
     3. The wearable heart rate monitor provides alerts if your heart rate exceeds or falls below safe levels.
5. Electrocardiogram (ECG) (Noun): A test that records the electrical activity of the heart, often available through advanced wearable devices to monitor heart health.
   • Example Sentences:
     1. The smartwatch features an ECG function to monitor and analyze your heart's electrical activity.
     2. An ECG reading from a wearable device can help detect irregular heart rhythms and potential issues.
     3. Using an ECG-enabled wearable provides valuable data for managing cardiovascular health.

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