I am interesting in getting a device, (bare metal micro-controller with sensors), to communicate to an android phone.
The device is not wearable and the power difference between Bluetooth and wifi as a consequence is of no import.
The range only needs to be a maximum of 3m with a low data rate (<2.1 Mbit/s), so bluetooth would be ideal and something I would just select. However, I am being questioned, why not WiFi?
What are the major advantages for WiFi versus Bluetooth for such an application?
e.g Are there any cost or regulatory implications for choosing one technology over the other?