The Galaxy GT-S7262, aka. the charismatic Samsung Galaxy Star Pro Duos

It’s made by a former WhatsApp co-founder and another person after Facebook bought it. It’s meant to be a WhatsApp replacement with more privacy. The original WhatsApp founders had a vision of having a free messaging service with no ads or no selling your data but struggled to keep WhatsApp running without much revenue. Therefore, when Facebook offered them 19 billion dollars, they couldn’t resist it and gave in as they had also promised to keep their app’s vision the same but of course they didn’t.

I’d say around US$300 to US$350 if the laptop is in good and fully working condition