Fitbit Charge 4

Key Features of the Fitbit Charge 4 Fitness Tracker

🗓️ Release Year

2020



🏃 Activity

Tracks steps, distance, calories burned, floors climbed, and active minutes. Provides Active Zone Minutes to measure the time spent in fat burn, cardio, and peak heart rate zones for more efficient workouts.



❤️ Health Monitoring

Continuous 24/7 heart rate monitoring with PurePulse technology. Tracks resting heart rate trends and provides estimated VO₂ max to assess cardiovascular fitness. Includes guided breathing sessions based on real-time heart rate data.



🔋 Battery Life

Up to 7 days of battery life on a single charge, with up to 5 hours in continuous GPS mode. Quick charge capability ensures minimal downtime.



😴 Sleep Tracking

Monitors light, deep, and REM sleep stages. Provides a Sleep Score and insights into sleep trends, helping improve rest and recovery over time.



📍 GPS Tracking

Built-in GPS provides real-time pace and distance tracking for outdoor activities like running, cycling, and hiking. Route maps and workout intensity zones are available in the Fitbit app.



🏋️ Workout Modes

Supports over 20 exercise modes, including running, cycling, swimming, HIIT, yoga, and strength training. Offers real-time stats and performance insights during workouts.



💫 Exercise Recognition

SmartTrack technology automatically detects and logs activities like walking, running, cycling, swimming, and elliptical training for seamless tracking.



🍎 Compatibility

Compatible with both Android and iOS devices via Bluetooth. Syncs automatically with the Fitbit app for in-depth fitness and health tracking.



📲 App Support

Integrates with the Fitbit app for detailed health metrics and fitness insights. Supports third-party fitness platforms like Strava, Google Fit, and MyFitnessPal.



💡 Smart Features

Receives call, text, and app notifications. Features Fitbit Pay for contactless payments, silent alarms, and weather updates for added convenience.



💦 Water Resistance

Water-resistant up to 50 meters (5 ATM), making it suitable for swimming, showering, and water sports. Tracks swim workouts, including lap count and duration.



⌚ Display Quality

Features a bright grayscale OLED touchscreen display with adjustable brightness. Provides clear visibility in various lighting conditions.



👌 Ease of Use

Touchscreen interface with a responsive side button for quick navigation. Simple and intuitive menu layout for effortless daily use.



✨ Design and Comfort

Lightweight and ergonomic design with an adjustable elastomer band for all-day comfort. Available in multiple colors with interchangeable band options.



🩸 SpO2 Monitoring

Includes an SpO2 sensor to monitor blood oxygen levels, primarily used for sleep tracking and detecting potential breathing irregularities.



💖 ECG Functionality

Does not support ECG (electrocardiogram) monitoring.



🧘 Stress Tracking

Tracks heart rate variability (HRV) to provide basic stress insights. Includes guided breathing exercises to help with relaxation and mindfulness.



🩹 Recovery Tracking

Analyzes heart rate trends and recovery post-workout to provide insights into cardiovascular fitness and readiness for the next session.



💳 Subscription

Basic features are free. Fitbit Premium subscription ($9.99/month or $79.99/year) offers additional insights, guided workouts, and advanced sleep analytics.



🏷️️ Price

$149.95

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