Do what's best for your body. Fitbit Charge 5 + Premium connects the dots between your activity, sleep and stress so you can make the best decisions for your body, mind and health. It all starts with your 6-month Premium membership1 and Daily Readiness2, a score based on activity, sleep and heart rate variability (HRV) that helps you optimize your workout routine. Your score comes with personalized activity recommendations: low means go easy and recover--light yoga, deep breathing--while a high score gives you the green light to go all out. Enhance your recovery routine with advanced stress-management tools like the on-wrist EDA sensor. Stay ahead of heart health with atrial fibrillation (AFib) heart rhythm assessments using the on-wrist ECG app.3 And you'll always have motivation to reach new goals with hundreds of guided workouts, a gallery of refreshing mindfulness sessions plus the fitness features you know and love like Active Zone Minutes and built-in GPS. **Specifications:** Sensors & Components: Optical heart rate monitor, 3-axis accelerometer, Built-in GPS + GLONASS, Red and infrared sensors for oxygen saturation (SpO2) monitoring, Device temperature sensor (skin temperature variation available in the Fitbit app), Vibration motor, Ambient light sensor, Radio transceiver: Bluetooth, NFC, Multipurpose electrical sensors compatible with ECG app & EDA Scan app Water Resistance: Up to 164ft operating systems: Apple iOS 13.4 or higher. Android OS 10 or higher Band Size: Small: Fits wrist 5.1” - 6.7” in circumference. Large: Fits wrist 6.7” - 8.3” in circumference Materials: Housing; aluminum, glass and resin. Band; silicone with aluminum buckle Battery life: up to 7 days Charge time (0-100%): Two hours NOTE: Charge 5 is not intended to provide medical or scientific dataLEVEL UP YOUR HEALTH & FITNESS – Transform your insights into impact with your included 6-month Premium membership and discover inspiration with new recommended workouts, mindfulness sessions, fun challenges and more. Also, get health insights specific to your body and mind for a more complete understanding of your well-being. TRACK TRENDS IN YOUR WELLNESS – See important changes in your wellness with health metrics such as SpO2 the level of oxygen in your blood heart rate variability, breathing rate…+ See your personal range and trends for each metric from the past month. FIND YOUR CALM – Understand how your body reacts to stress with a daily Stress Management Score and measure your body’s in-the-moment physical response with an on-wrist EDA Scan app. Plus, find your calm with expanded mindfulness tools and a detailed breakdown of your Stress management Score (included with your 6-month membership. REDEFINE YOU ROUTINE – Optimize your activity and routine with Daily Readiness, a personalized score available with your included 6-month Premium membership. Daily Readiness uses insights from your exercise, sleep and Heart Rate Variability (HRV) and lets you know of you’re ready for a workout or need to prioritize recovery (requires Premium subscription. This Exciting Bundle/Kit Includes: Fitbit Charge 5 Advanced Fitness & Health Tracker (Black/Graphite), Small & Large Bands, PremGear 3.3ft USB Charging Cable, PremGear Wall Adapter, PremGear Screen Protectors & PremGear Quality Cleaning Cloth.Water Resistance Level: Water Resistant. Connectivity Technology: USB, GPS. Band Color: black. Compatible Devices: Smartphone. Age Range (Description): Adult. Special Feature: GPS. Screen Size: 6.7 Inches. Color: black. Style: Modern. Brand: Fitbit. Manufacturer: Fitbit-PremGear. Date First Available: May 23, 2022. Best Sellers Rank: #1,526 in Electronics. Customer Reviews: 4.3 out of 5 stars 101 ratings 4.3 out of 5 stars. Batteries: 1 Lithium Polymer batteries required. : B0B2222H2R. Item Weight: 7.8 ounces. Package Dimensions: 8.46 x 8.11 x 2.87 inches.