The first Motorola model to support the clamshell design was the MicroTAC, created in 1989, although General Telephone & Electronics (GTE) held the trademark from the 1970s for its Flip-Phone (one of the first small handheld electronic phones), until 1993. Flip phones became popular in the late 90s and this factor lasted until the early 2010s.The clamshell form factor began to experience a decline in popularity in the late 2000s and early 2010s, due to the increasing popularity of touchscreen smartphones such as the iPhone, which use a slate-like form factor and large, non-folding screens. Clamshells remain a predominant form factor for feature phones—which remain popular among specialized audiences who prefer their simplicity or durability over smartphones. Samsung also released a low-end smartphone in South Korea known as the Galaxy Folder, which has a flip phone design and keypad reminiscent of feature phones whilst running Android.