Brief History Mobile phones have a longer history than tablets. The first call form a mobile device was by Martin cooper in 1973.The device was huge and weighed 2.4 pounds. The first concept for a tablet was published in 1972 by Alan Kay and dubbed Dynabook (Strickland).Apple was however the first company that introduced commercially viable tablets with its iPad line of product in 2010.
Differences in physical attributes Both devices differ in physical attributes. Tablets have bigger screens than smartphones. Due to their size, they tend to have higher resolution and longer battery life. This makes them ideal for the long media content (Appsee). These attributes also make tablets better for gaming and other high-power consuming applications and use.
Portability Whereas smartphones are pocketable, tablets are portable. Most tablet users keep them at home or in the office. Smartphones, on the other hand, are taken everywhere the user visits. This makes smartphones a necessity while tablets are a productivity device or luxury.
No lines are longer than 80 characters, TYVM. Other specified properties aren't being scored automatically at this time so this is not necessarily good news...