How is apple successful and unsuccessful at branding? ?

The company Apple, has had many successful and unsuccessful attempts at products and branding. Its been quite successful in the companny's ability to diffuse their products around the world. iPhones and other apple products ca be found nearly in every continent and the newest iPhone always seems to be trending on social media. However, like all companies, Apple's less successful products have lead to although minor commercial failures. Many complain that apple's merchandise are overpriced and al the same leading to less commercial values than originally anticipated.
Take the iPhone SE for instance, mirroring almost exactly the same as the iPhone 4, was to say the least, not Apple's greatest success.

~I hope this helps!~