With Basis Peak, you get the deepest insights into how your body is performing, from workouts to sleep and everything in-between. Peak combines comprehensive fitness and sleep analysis - including heart rate during exercise - with smartwatch notifications, making it the ultimate, all-in-one device. Get the most out of your iPhone* with Basis Peak!* SEPARATE DEVICE PURCHASE REQUIRED TO USE APP * ADVANCED FITNESS AND SLEEP TRACKINGGet the full picture of your health - from activity duration to calories burned to sleep quality and more.APPLE HEALTHKIT INTEGRATIONPeak is integrated with Apple HealthKit. We support active energy, heart rate, resting energy, sleep analysis, steps, workouts and weight. Apple Health makes it easy for connected apps to work together. It keeps your profile data automatically up to date, and gives you the option to control what activity information you share.CONTINUOUS HEART RATE MONITORINGReal-time heart rate at your wrist that provides 24/7 insights including heart rate during exercise without a chest strap.SMARTWATCH FeaturesGet notifications for texts, calls, emails, calendar events and habit alerts on your Peak. No more pulling out your phone to change songs while working out; Get music control for itunes and Spotify right on your wrist.AUTOMATIC ACTIVITY TRACKINGGet instant credit for your walks, runs and outdoor bike rides with dynamic caloric burn calculation.SLEEP WELL-INFORMEDPeak automatically tracks when you fall asleep and wake, offers REM, Light and Deep sleep insights and counts your tosses and turns. Use our silent alarm feature to wake yourself in the morning.GOAL-BASED HABITS SYSTEMBasis turns insights into action by helping you determine your daily goals and then automatically adjusts your targets based on your progress.LOCATION GPS AND BATTERY LIFE NOTICEContinued use of GPS running in the background can dramatically decrease battery life.SPECIFICATIONS:- Requires a Basis Peak tracker and Basis account. Go to store.mybasis.com to order.- Internet connection required to view current data on application.- Supports iPhone 4S or higher with iOS 8 or higher.