Fitbit Charge 5 Advanced Health & Fitness Tracker with Built-in GPS – Black/Graphite

AMAZON ALEXA BUILT-IN: Talk to Amazon Alexa on your Amazfit Band 5. Ask questions, get translations, set alarms, and timers, create shopping lists, check the weather, control your smart home devices, and more.
15-DAY BATTERY LIFE: Say goodbye to daily recharge. With a fully charged Amazfit Band 5, you don’t need to bring a charger for a two-week trip. On a single charge, it has enough power to get you charged for 2 whole weeks mind-free.
BLOOD OXYGEN SATURATION MONITOR: You can measure your blood oxygen saturation and understand your physical state with OxygenBeatsTM. Ideal for high-intensity workouts and sports such as marathons and gym workouts.
24/7 HEART RATE, SLEEP TRACKER: With Huami-proprietary BioTracker TM2 PPG optical sensor, this health tracker performs 24/7 real-time heart rate monitoring and high heart rate warning. Band 5 can also professionally interpret the sleep characteristics at each stage and analyzes sleep quality, to help you adjust your sleep habits. It even monitors your 20-minute daily nap.
YOUR SMART FITNESS PARTNER: An ultimate easy-to-use activity fitness tracker with 11 built-in sports modes, enabling you to record the distance, speed, heart rate changes, calories burned, and other data during your workouts. With a water-resistance grade of 5 ATM, Band 5 can withstand all your daily activities and you can wear it while swimming.
WOMEN’S HEALTH TRACKING: With the female period tracking system, Band 5 records and predicts the female menstrual cycle and sends smart notifications reminders.
COMPATIBLE PHONE MODELS: Android 5.0 or iOS 10.0 and above.