4llowHeart seamlessly integrates with your daily routine through customizable alerts, activity recognition, and smartphone notifications. Its intuitive interface lets you prioritize the health metrics that matter most to you, while the water-resistant design and 7-day battery life ensure your tracking remains uninterrupted during workouts, swimming, or busy weeks when charging isn't convenient.
Designed for health-conscious individuals, 4llowHeart delivers comprehensive wellness tracking that goes beyond basic metrics. With continuous heart rate monitoring, stress level assessment, blood oxygen saturation tracking, and specialized female health features, you'll gain unprecedented insights into your body's signals and needs throughout the day and night.
4llowHeart uses advanced sleep stage tracking technology to analyze your deep, light, and REM sleep patterns each night. The intelligent algorithm identifies sleep disruptions and provides actionable recommendations to improve your sleep quality, helping you wake refreshed and maintain optimal cognitive and physical performance throughout your day.
"The sleep insights have been life-changing! After three weeks of using my 4llowHeart, I've adjusted my bedtime routine based on the recommendations, and I'm waking up refreshed for the first time in years. The battery life is impressive too—I only charge it once a week!"
– Emily S., USA
Your Complete Sleep and Health Companion
4LLOWHEART FEATURES ALL YOU CAN EXPECT:
Our proprietary SleepIQ technology tracks not just duration but quality of sleep, identifying your unique sleep stages and patterns. The detailed reports help you understand factors affecting your rest and provide personalized recommendations for improving sleep efficiency.
Our specialized female health tracking feature helps users monitor monthly cycles, predict patterns, and understand connections between cycle phases and other health metrics. The system learns from your data to provide increasingly accurate predictions and insights over time.
Engineered with IPX8 water resistance, your 4llowHeart withstands swimming, showering, and intense workouts without compromise. The sealed design protects sensitive components while maintaining accurate tracking in all conditions.
Beyond sleep, 4llowHeart continuously tracks heart rate, stress levels, blood oxygen saturation, and activity metrics. This holistic approach to health monitoring creates a complete picture of your wellbeing and helps identify connections between different aspects of your health.
With industry-leading 7-day battery life, 4llowHeart keeps you connected to your health data without constant charging interruptions. The efficient power management system ensures reliable performance even with 24/7 monitoring activated.
4llowHeart delivers premium health monitoring features at half the price of comparable devices. Our direct-to-consumer model eliminates middleman markups while maintaining exceptional quality and customer support.
We understand the value of your time. That’s why our team is trained to respond promptly and efficiently, ensuring your queries and issues are addressed without unnecessary delays.
Frequently Asked Questions
Trusted by Sleep Specialists Worldwide
After struggling with insomnia for years, the insights from my 4llowHeart helped me identify that my evening screen time was the culprit. Two weeks after implementing the suggested changes, I'm sleeping better than I have in a decade!
VERIFIED BUYER
The stress tracking feature alerted me to elevated levels I wasn't consciously aware of. The guided breathing exercises have become part of my daily routine, and I've noticed significant improvements in both my sleep quality and daytime energy.
VERIFIED BUYER
As a shift worker, consistent sleep has always been challenging. The 4llowHeart has helped me optimize the sleep I do get by identifying my best sleep windows and environmental factors. It's been truly life-changing for my health.
VERIFIED BUYER