Despite its slim profile, Untold Rugged Bumper for Apple Watch Series 4 provides certified impact protection for even the most active users. Have the freedom of using any Apple Watch straps you like, especially those you already own. The case is designed with a subtle lip rising above the screen’s surface, defending against direct screen impact regardless of the drop angle. Every detail of the case is meticulously considered, prototyped, and tested. The heart rate sensor and charging functions can be used with the case. Cut-outs are perfectly sized for a seamless look, without affecting the use of the Digital Crown.