"All New" 2019 Ram 1500 (If anyone works for Uconnect, please email me.)
iPhone, iPhone 4, Nexus 5, Nexus 5X, Nexus 7, Razer Phone, Thinkpad Yoga, Thinkpad Book, self-assembled desktop, Toyota Corolla - all have worked perfectly with various, cheap, Bluetooth devices - keyboards, mice, speakers, earbuds, and each other for BT file transfers.
(It's really sad that a Corolla has a better Bluetooth experience than a Ram which is 3x in cost.)