My first "cell phone" was only slightly smaller A desktop model made to go in a car. Attached handset.Egads!! Now those Pioneers(guinea pigs) are the ones that pumpers should be thankful to.
In 1977/78 area, a Lad in our town had been dxd. with Type 1 Diabetes and the town got together to raise money to buy him a pump. It was only the size of a brick and near as heavy as one.