We don’t know what the iWatch will look like. But we have seen some interesting iWatch concepts already. The latest one by Todd Hamilton is inspired by devices like the Nike Fuelband. It has Siri, apps, and other other useful features iOS users have come to love. Will Apple go with a design like this for the iWatch? That is not clear. However, it would not be surprising if Apple releases more than one iWatch models in the future.