What phone does your pre-teen have? I don't want to open Pandora's box and give her a full smartphone, but also considerations are that having wifi data access like Whatsapp would also be good, as it would save needing to get a full monthly minutes plan, so could be used to phone me or text me even when on wifi only.
Open to a brick phone but also wondering if it will be too limiting if doesn't allow basic internet and whatsapp type apps.
Want the cheapest option for running as well! E.g. data or minutes that don't expire as we won't use it often.
Also having a cheap handset is important in a way - 11 year olds are not the most responsible with tech and posessions!