Gear S3 bands are not compatible with the S2.When searching for watch straps, don't restrict yourself to only gear s2 straps. I believe watch bands made for the galaxy gear fit both the s2 and s3. If you're looking for leather, try googling "galaxy gear s3 leather strap" or any other material you have a particular affinity for. You'll get a pretty generous list of the various providers, including the official ones by Samsung.