Seido, maker of all manner of cases for mobile accesories, has announced some new cases for some very popular Android phones. The waterproof Obex will be made available in white for the Samsung Galaxy S3, while the Convert will be coming to the Note 2 and Nexus 4.

The Obex, a “waterproof and military-tested drop-proof” case, is reported to be completely dry and functional after being submerged in water. In testing, it survived drops from up to four feet at different angles. The case also has anti-reflective glass which causes no interference with the camera lens.

The Convert is essentially two cases, made into one monster case. The combination starts with Seido’s Surface case, a durable plastic case with a soft-touch coating. The felt lined case can then be combined with the Convert skeleton, which is made of silicone and adds a kick-stand for landscape viewing.

“The expansion to our protective line is a result of requests by our customers. So, we’re very excited we were able to make these requests a reality,” says David Chang, CEO of Seidio. We can’t agree more. If you’re interested to see the cases, and are at SXSW in Austin, TX, visit booth #545. The Obex will retail for $79.95, and the Convert will sell for $54.95. No word on an official release date yet.