Wearable technology is no longer just for tracking your steps or seeing how badly you’ve slept. From blood oxygen levels to stress analysis, these devices are turning into mini health gurus—all while looking sleek on your wrist. Ready to geek out on what these gadgets can do?

1. Heart Rate: More Than a Pulse Check

Gone are the days of simply checking your heart rate after a workout. Today’s wearables monitor your ticker 24/7, spotting irregularities like arrhythmias or elevated resting heart rates. Think of them as your cardiac safety net—no co-pay required!

2. Sleep Tracking: A Window Into Your Zzzs

Feel tired even after eight hours of “sleep”? Your wearable might tell you why. These devices analyze sleep stages, from deep sleep to REM, and offer tips to optimize your snooze. Just don’t blame it if you’re binge-watching instead.

3. Stress Levels: Are You Chill or Close to Snapping?

With sensors detecting changes in your heart rate variability, wearables can measure how stressed you are. They’ll even nudge you to take a breather if things get intense. It’s like having a tiny Zen coach strapped to your wrist.

4. Oxygen Saturation: Breathing Easy

Ever heard of SpO2? Your wearable has. Monitoring your blood oxygen levels isn’t just for mountain climbers. This feature is especially handy during workouts or for spotting early signs of respiratory issues. Talk about breathing life into tech!

5. Fitness Metrics: Beyond Calories Burned

Step counting is old news. Now it’s all about VO2 max, recovery times, and advanced workout insights. These stats help you fine-tune your fitness routine and even predict how well you’ll perform in your next big run.

6. ECGs and Blood Pressure: Doctor’s Office Optional

Some wearables now offer electrocardiograms and cuff-less blood pressure readings. It’s not a replacement for professional care, but it’s a giant leap for preventive health.