Back in the late 1990s and early 2000s I ran a mobile phone shop. That was the absolute heyday of the mobile handset.
It was the days before smartphones came along and devices became contextually dull, smartphone designers were, relatively speaking, going a bit mad.
Obscure keypad designs, replaceable housings, recordable ringtones, and even moving parts became faddy trends. But, at least for a short while, the best phones to be seen with were the smallest.