1995 I was on AD in the AF, and had a beeper issued to me. There were 2-way "beepers" which allowed for a rudimentary text message, but they wern't very common. I think that was about the peak of the beeper.
I also bought my first cell phone that year, and it was updated version of a common phone by Motorola. Piper, I think? It had a flip cover over the keypad that only funneled your voice. It had a one line screen that only displayed the number dialed, and you had to pull out the antenna when you answered, or you'd have no reception. The battery was removable, and you could use a slim one, or a thicker one which matched the contour angle of the phone. i think my (expensive) plan had 30 mintues a month, and text was not realy a thing yet. By the late 90's, phones had advanced rapidly to smaller "antennaless" models which could actually fit in your pocket. Pretty much everyone in my squadrons had a cell phone in the late 90's, but I don't think every living being had a cell phone until at least the late 2000's?
Palm Pilots were still a thing in the late 90's. Anyone actually ever try to use one with that "palm pilot alpabet"??