Differences between connecting to WiFi and connecting to Bluetooth only

WiFi and Bluetooth give you different options:

WiFi

• Use Alexa
• Get firmware updates
• Control specific music services using Alexa:
  • Amazon Prime Music
  • Amazon Music Unlimited
  • Deezer
  • TuneIn
  • iHeartRadio (US, Australia, and New Zealand)
  • Pandora (US)
  • Spotify

Bluetooth  

• You can use any music service as long as you have the app