First one I've used for a memorable amount of time was my grandfather's Microtac 8200 (which, like most phones at the time, could only receive SMS: my mom had the newer 8700 which could also send them, so she texted me - he didn't know how to read them anyway - and I would go to the phone booth to reply
)
My first own one was some Samsung with a color notification LED made around 2003, which I remember almost nothing about due to it holding the questionable award of being the only tech product stolen from me until 2016
Next was a Nokia 3220:
I even bought a serial cable for it, but I don't think I ever installed a Java game on that one - because I found out I could get more entertainment out of the maybe 4 MB storage if I filled it with Mario MIDIs!!
I still have it somewhere, with no cable/charger/battery, but fully knowing it has 2 bootleg song recordings, one of which seems to be impossible to find in any form...
It's also the tech product with an apparently unlimited calendar, on which I started writing down almost every place I've been and at which time (I have since lost that data, but my current calendar which starts somewhere in 2011 is a few megabytes in ICS format!)