While the Ericsson phones were feature-packed and very desirable, the settings were a nightmare to customise if you were doing it on the fly without the benefit of an instruction manual. My first mobile phone was one I bought outright on special for $50, a Motorola MicroTAC analogue device like this pic but without the flip cover. I bought a NiMH battery for it that was over an inch thick, it could run for about ten days on that one!