With the Catalyst Waterproof Case for 40mm Series 4, you can take your Apple Watch anywhere with you, even during your craziest adventures! It was developed by the best engineers to protect your watch in any kind of situations. The Series 4 from Catalyst has an 18% stronger housing than the previous Series 3. With this new case, you get the best protection ever for your smart watch! It has an Ingress Protection rated IP68. This means you can go as far as 330 ft. (100m) underwater while ensuring your watch stays safe. It has also a MIL-STD 810G drop protection to 6.6 ft. (2m). While you have a direct screen touch access, your watch will be completely sealed against dust, water, snow, and dirt. This case also features the True Sound Acoustic Technology™, a patented technology from Catalyst to make sure every sound comes out perfectly clear.