This slim wristband tracker, available in multiple colors, complements your style with its distinctive design, metal trim accents and bright, easy-to-read display. The display is only on when you need it. And when it’s on, it auto-adjusts to ambient light levels, so it’s visible even in bright sunlight. Whether you’re going to the office, the gym, the pool or anywhere in between, vívosmart 4 is the perfect fit for your lifestyle.

• Slim, smart activity tracker blends fashionable design with stylish metal accents and a bright, easy-to-read display
• Can gauge blood oxygen saturation levels during the night with the wrist-based Pulse Ox sensor. (Not a medical device and not intended for use in the diagnosis or monitoring of any medical condition)
• Fitness and health monitoring tools include estimated wrist-based heart rate, all-day stress tracking, relaxation breathing timer, VO2 max, Body Battery energy monitor and more
• Features dedicated activity timers for walks, runs, strength training, yoga, pool swims and others
• Get vibration alerts for all notifications, including calls, text messages and more (text replies available for Android device users)
• Battery life keeps up with you; lasts up to 7 days (excluding Pulse Ox sleep tracking) and is safe for swimming and showering, too

Pulse Ox at Your Wrist
The Pulse Ox sensor on vívosmart 4 estimates your body’s blood oxygen saturation level. Your Pulse Ox measurements are dependent upon a number of factors, including your overall health and fitness. Checking your Pulse Ox can help gauge how your body is absorbing oxygen. Turn on the feature to gauge your SpO2 overnight, or use it to take a spot measurement anytime to learn more about your body.

Advanced Sleep Monitoring
Sleep is important to your overall health, well-being and physical performance. To give you an idea of how you’re sleeping, vívosmart 4 tracks your light, deep and REM stages of sleep, along with movement throughout the night. For added insight, turn on the Pulse Ox feature to view your blood oxygen levels during your sleep. When you wake up, you can easily review and compare your sleep stats in the Garmin Connect Mobile app.

Optimize Your Body’s Energy
Body Battery energy monitoring on vívosmart 4 uses a combination of stress, heart rate variability (HRV), sleep and activity data to gauge your body’s energy reserves at any moment, so you can plan your day to optimize times for activity and rest. A higher number indicates you’re ready to be active, while a lower number suggests you might need to relax and rest a bit before tackling a workout. Body Battery can also help you make sense of patterns throughout your weeks, so you can understand how the past few days have influenced how you’re feeling today.

All-day Stress Tracking
You most likely experience stress at some point in your day, but how much? Your vívosmart 4 lets you know when you are having a calm, balanced or stressful day and everything in between. Tracking your HRV (the time interval between each heartbeat), vívosmart 4 calculates and displays your stress level. There’s also an optional 'Relax Reminder' feature that you can turn on in the Garmin Connect app. If your stress level gets elevated during your day, it will provide a vibration alert on your wrist and display a message (“Take a moment to breathe?”) to let you know it’s time to relax. Use the relaxation breathing timer, which walks you through the Fourfold breathing technique, proven to calm your mind and body.

Daily Fitness and Wellness Monitoring
Using the Elevate heart rate data collected from your wrist, vívosmart 4 can — with a VO2 max estimate — give you an idea of your current fitness level. In general, as your aerobic fitness increases, your VO2 max does the same. Based on your VO2 max, vívosmart 4 is also able to estimate your fitness age — a stat that you may be able to decrease over time with hard work and exercise. For added insight, vívosmart 4 will notify you if your heart rate unexpectedly rises above a threshold you’ve set. If you’re inactive for more than 10 minutes and your heart rate stays above your set threshold, you’ll get an alert.

Stay Connected
With a vívosmart 4 tracker on your wrist, you don’t have to choose between staying connected and staying more active. Check the weather, control your music, receive smart notifications, find your phone, even reply with preset text responses (Android only), and access social media notifications on your tracker’s display — all while keeping your smartphone stowed away.

Shipping Note: Shipping to Alaska, Hawaii, APO addresses, or PO Boxes is not available for this item.

Warranty: 90 Day Woot Limited Warranty

Optional Asurion Protection Plan: To further protect your purchase, you can buy an Asurion protection plan from Amazon here. Review the FAQs for additional information.