mobile phonetechnology advanced in many ways. it has gone from big giant phone to small pocket phone. it has gone from big to Small to no buttons at all phone. . .you can get on the Internet with them now and you can send messages from them. mobile technology has changed a lot since 1970. .. .
Big and square, similar to today's SAT Phone. Very heavy about 8 lbs. But still difficult to find an actual picture EDIT: I found this picture on Wikipedia showing the 'evolution' of mobile phones. The one on the left is similar to the first mobile invented.