The 4llowHeart uses medical-grade sensors that deliver 97% clinical accuracy, comparable to professional medical devices, ensuring reliable heart rate measurements during both rest and intense physical activity.

Yes, the 4llowHeart features IP68 water resistance rated to 50 meters depth, making it perfect for swimming, showering, and water sports without risk of damage to the device.

The 4llowHeart provides seven full days of continuous health monitoring on a single charge, thanks to efficient power management technology that ensures uninterrupted tracking throughout your week.

Yes, the 4llowHeart is compatible with both iOS and Android smartphones, allowing seamless synchronization of your health data regardless of your device preference for universal accessibility.

Simply access the watch face settings through the intuitive touch screen interface and choose from dozens of customizable options that display your preferred health metrics and personal style.

Yes, the 4llowHeart automatically tracks your sleep patterns throughout the night, analyzing sleep quality, duration, and stages to provide comprehensive insights into your rest and recovery.

Absolutely! Weighing just 28 grams with ergonomic design, the 4llowHeart fits comfortably on any wrist size, making it perfect for 24/7 wear without causing discomfort or irritation.

The specialized female cycle tracking monitors your patterns over time, helping you understand your body's rhythms and optimize exercise routines and wellness activities throughout your monthly cycle.