Turn your watch or chest strap into a serious training coach. Live Heart Rate Pro shows your heart rate, zones and calories burned in real time, so every workout has a purpose. Works with Wear OS watches (Galaxy Watch, Pixel Watch and more) and Bluetooth LE heart rate straps. One purchase, no subscription, no account. Note: You need a Wear OS watch with a heart rate sensor, or a Bluetooth LE heart rate strap, to use this app. SEE YOUR HEART RATE LIVE A big, smooth chart draws every beat as it happens, colored by heart rate zone so you know instantly if you're cruising, pushing or redlining. Large numbers show your current and average heart rate, elapsed time and calories burned. Tap to see everything at once, and zoom the chart in on your current heart rate for a closer look. SET A GOAL AND HIT IT Choose how long you want to work out and how many calories you want to burn. Live Heart Rate Pro works out the heart rate you need to hold, then shows you in real time whether you are ahead or behind. Great for weight loss and for anyone who likes to finish what they planned. COMPETE AGAINST YOUR PAST SELF Pick any saved workout and go head-to-head with it. A grey line on the chart shows where you were at the same point last time, and you see right away if you are ahead or behind. Nothing makes the next workout feel more worthwhile than beating the last one. STAY IN THE ZONE Set a heart rate to alert above and one to alert below, and your phone sounds an alert the moment you drift out of range, so you can keep your eyes on the road, the trail or the screen in front of you. Your watch vibrates when a workout starts and stops, and when it loses your heart rate. A hydration reminder makes sure you drink. KNOW HOW YOU DID After every workout you get a clear summary: time in each heart rate zone, a bar chart of how long you spent at each heart rate, calories burned, and a training load (TRIMP) score. Your history keeps every workout, so you can look back and see your progress. BUILT AROUND YOU • Calories estimated from your heart rate, age, weight and sex, and from your VO2 max if you know it • Your own maximum heart rate sets your zones • Export your heartbeats to a CSV file for analysis in other programs • Follows your phone's light or dark theme • Your workouts are stored on your phone Perfect for running, cycling, walking, gym sessions, HIIT, rowing and any workout where your heart rate tells the story. Download Live Heart Rate Pro and see what your heart is really doing.