I believe it was Siemens MC60. I remember getting my arm broken and then getting 10k CZK from the accident benefits. Parents asked me what I wanted for part of that money when I was in the hospital and I said this.
Then I bought a refurbished Treo 650 in 2015, an awesome piece of technology if only it had a WiFi (there was a possibility of a module that clipped on the back which had its own battery, or there were WiFi SDIO cards, but I, being a poor student who poured all his savings into the phone (yeah, very bad financial decision), couldn’t afford either of them.
I still miss a phone like that, but with a modern chipset and maybe a better OS (but still somehow based on the PalmOS original path)