All three phones were spotted in the TUV Rheinland certification database. Unfortunately, the source isn't particularly rich in information. It does reveal all of the model numbers for each handset.

The term ISO refers to International Organization for Standardization. It is an independent organization, which provides standards in terms of quality, safety, and efficiency of products and services ...

Of course, some criticize these modern logos as being copy-and-paste, minimalist and unoriginal. Those yearn to return to the unique logos of the 1990s and early 2000s, where the NFL used elements ...