Key features

• •【ALL-DAY ACTIVITY TRACKING】Tracker S4 has full suite of fitness tracking including all day heart rate monitoring, all day step counting, calories burned, miles covered, active minutes and sleep quality. Updating and syncing with your phone to get the history data and the whole day data.
• •【REAL TIME HEART RATE MONITORING】Tracker S4 knows your real time heart rate with our 24 hours continuous heart rate sensor. Automatically sync the data to app 'Smart Wristband', analyze your heart rate on your work out and daily wear. Helping you get a better understanding of your fitness level and a healthy life.
• •【SLEEP QUALITY MONITORING】The fitness tracker S4 records your sleep quality EVERY NIGHT including how many light-sleep hours and deep-sleep hours you've taken last night, and wakes you up with silent vibrating alarm. Remember to turn on your APP before sleeping.
• •【SMART NOTIFICATIONS ALERT】Receive call, calendar, SMS and SNS (Facebook, WhatsApp, LinkedIn, Instagram, and Twitter) notifications on display, so you're always up to date and never miss things that matter. Extra features such as reminders to move, setting a daily fitness goal are inside this S4 tracker waiting for you to explore.
• •【MULTI-SPORTS TRAINING & WATERPROOF 】Whether you're cycling, running, hiking, or walking, S4 fitness tracker brings you data to motivate you do better; With IP67 waterproof design, you do not have to take off the tracker when washing hands, running in the rain.