It would be even more sustainable to not include the Bluetooth module. Less parts means less material use (making it greener) and less cost of materials as well (making it cheaper). The phone has speakers for audio anyway. Who wants to carry around some second accessory like headphones or earbuds? It’s not like anyone has a perfectly valid use case for the Bluetooth module, right?
It would be even more sustainable to not include the Bluetooth module. Less parts means less material use (making it greener) and less cost of materials as well (making it cheaper). The phone has speakers for audio anyway. Who wants to carry around some second accessory like headphones or earbuds? It’s not like anyone has a perfectly valid use case for the Bluetooth module, right?