What capability do smartphones have that telephones with earlier technology lacked? wireless technology
data services
mobility
voice transmissions

Smartphones were a very back thing back than. Smartphones was an old generation back than which I didn’t even think their phones got messed up. But with new technology today it’s a different generation, it’s better technology though for an example , iPhones , Apple TV, and Apple computer, but sometimes they’ll probably break out of no where. Hope this helps you