Imos 3d will provide full coverage incl side curved edges. That is why the sp is not compatible with most cases. As for ITG patchwork, the sp not fully cover the side curved edges. Compatible cases are still limited though but have more variety compared to imos. I've been using imos 3d for almost 2 weeks when first getting the phone then dump it for patchwork since i am more to "cases" kind of guy. Only now seem like dust more likely to stuck under the sp due to round phone edges.