Psion handheld computers SIENA from 1996.

I bought this second hand a few years ago as a back up to the series 5, see previous upload, it’s about half the size which makes it pocketable, both have infrared ports for data exchange, the Siena has no backlight unlike the series 5 which turns on by pressing the fn key and then the space bar . The advantage is that unlike a mobile phone there is no boot up time and the battery lasts about 5 times longer at about 50 hours , no waiting to recharge ,just pop in 2 AA batteries, I use them for calendar appointments and voice memos for appointments, both have internet access via desk top computer working on broadband.