Get accurate wrist-based heart rate during exercise.Track all day activity, including sleep, steps, calories, distance, pace & goal. Tracking sleep requires a simple software update.Sync wirelessly via Bluetooth Smart (4.0) to popular fitness apps.Works exclusively with Mio PAI app (Personal Activity Intelligence).Water resistant up to 30m (3 ATM / 100 ft.)To add sleep tracking, easily update your firmware via Mio GO app.For Mio product support, please contact 1-877-770-1116 (Mon-Fri: 9am to 5pm PST). Please refer user manual attached below for instructions and troubleshooting steps.How do I pair my Mio device to an app like Strava, MapMyRun, Endomondo, RunKeeper or any other 3rd party smartphone app? A: Make sure that your smartphone is compatible, and follow the steps below! 1. Take both your smartphone and Mio device to a place at least 30m (100 feet) away from any other Bluetooth devices. 2. Turn on heart rate monitoring on your Mio device, and place your Mio device within 1 meter (3 feet) to your smartphone-the closer the better! 3. Make sure Bluetooth is enabled on your smartphone. For iPhones, go to Settings > Bluetooth, and make sure that Bluetooth is 'On'. For Android phones, open the Bluetooth settings menu on your device and enable the setting that makes your device visible to other Bluetooth devices. Note: Pairing must be completed within the app settings, and not in your smartphone's Bluetooth settings. Make sure that Bluetooth is enabled, but don't connect anything directly within the Bluetooth settings! 4. Open the app that you would like to pair with and add your Mio device as a heart rate sensor. The setup process varies by app, but the option to add a heart rate sensor is typically found in the Settings menu. Repeat the above pairing process any time you use a new app. After initial pairing is complete, your Mio device will automatically be recognized each time you use that app. Troubleshooting tip: Your Mio device can't connect to more than one app at a time. If an app can't find your Mio device, make sure to force close any heart rate monitoring apps (including Mio GO) that may be running in the background.How to get the most accurate HR reading Picture this: you're getting ready to head out for a workout. You turn on your heart rate monitor, and you can't find your heart rate. No, you're not dead; your heart rate monitor could just be having a bit of trouble getting a reading. Your Mio heart rate monitor uses the industry's most accurate technology, but there are a few steps you can take to make sure your heart rate reads loud and clear every time. First, just try turning off heart rate mode and restarting. If that doesn't work, try these 5 easy things to get an accurate heart rate reading before you start working out. 1. Keep it clean If the sensor on your Mio is dirty, it can cause problems. Keep it clean by washing regularly with a wet cloth or by running it under water quickly after each use. Just be sure to dry it off after. 2. Wear it high Fasten the device about 1-3 inches (3-8 cm) above your wrist bon 3. Cinch it up If light gets in, your Mio won't work well. Tighten the strap so that the optical sensor on the back makes good contact with your skin. 4. Warm up If you have cold hands or poor circulation, this one's especially important. Get some blood moving before you get started, and you'll get a better reading. 5. Hold still If you're moving around, it's difficult for your device to get an initial heart rate reading. Hold still until your heart rate displays, then get moving. Keep these 5 simple tips in mind next time you're heading out for a workout or trying to track your heart rate.What should I do if my workout memory is full FUSE stores 30 hours of workout data, after which time it will show 'NO MEM