Compatible Models Designed for Fitbit Versa 3, Versa 4, Sense, and Sense 2 smartwatches. Suitable for both men and women. Note: This product includes stretchy replacement watch bands only. Fitbit watch not included. Comfortable Material Crafted from quality DRY FAST nylon, providing a soft, skinfriendly feel that prevents irritation and rash. Lightweight, breathable, and durable, with moisturewicking properties. Sweat escapes easily, the band dries quickly, and it remains easy to clean. Ideal for workouts and everyday wear, offering a comfortable alternative to silicone bands. Adjustable and Secure Fit Strong elastic construction ensures a snug and secure fit without friction or discomfort. Designed to keep your smartwatch in place for accurate heart rate tracking and other measurements during exercise, sleep, or daily activities. The stainless steel buckle allows precise size adjustments, solving common fit problems. Suitable for wrist sizes from 4.5 to 9.5 inches (115 to 245 mm). Easy to put on and remove. Secure and Simple Installation Equipped with quickrelease spring bars on both ends for precise and secure attachment to your device. Prevents loosening or accidental detachment. No tools required for installation or removal — simply press the quickrelease mechanism for fast changes. Practical Applications 1. Fitness training: Lightweight and breathable for comfort during workouts, preventing sweat buildup. 2. Sleep tracking: Soft, stretchy fit for uninterrupted wear overnight, ensuring accurate data collection. 3. Everyday activities: Durable design withstands regular use at work, home, or while traveling, maintaining both comfort and style. This elastic nylon band offers reliable performance, easy adjustability, and comfort, making it a versatile choice for Fitbit Versa and Sense users.