Final answer:
Bluetooth is gaining popularity in Europe due to its advantages of cheaper, faster, and better-quality data transmission and spin-off technologies like free Internet-based calling and video calling.
Step-by-step explanation:
Bluetooth is gaining popularity in Europe compared to Wi-Fi due to its advantages of cheaper, faster, and better-quality data transmission, as well as spin-off technologies like free Internet-based calling and video calling. These advantages make Bluetooth a more attractive option for many users in Europe.