Cell phones were previously portable devices on cellular networks that focused primarily on voice conversations and minimal messaging. Mobile phones, on the other hand, are a broader category that includes modern smartphones with comprehensive functionality, applications, and internet access.

There are three categories of mobile phones: basic phones, feature phones, and smartphones. Smartphones are equipped with a QWERTY keypad.

The Motorola DynaTAC 8000X was the first handheld cellular phone that allowed people to make longer distance calls than just a landline phone. It did not require any lines or cords to be attached to make a call. The first ever cellular phone call was made in 1973, using this phone, by Dr. Martin Cooper.

What did the DynaTAC 8000X look like? This first model weighed 1.1 kg and measured 33 x 4.5 x 8.9, quite thick compared to today's phones. The first mobile phone only offered 30 minutes of talk time and needed 10 hours of charging to work properly.