Wider (and sharper) Than An Ultra Wide
This lens has 50 degrees more field of view than the built-in ultra wide on the iPhone 11. That’s 40% wider, or 1.4x more image. Secondarily this lens has multiple aspherical elements inside, maximizing every corner of the image sensor in the latest camera phones. Lastly, the lens works over the built-in wide lens on the phone, which is a higher quality camera. You end up with a larger image that is crisper in detail than the built-in ultra wide lens.