Isk
I mostly run android auto which grabs the music from my phone that i have on it. Im always downloading new music on my phone so this is a must.
The other app i mainly use inside android is pandora. Again this plays thru android auto. Very very rarely do i play anything else. Maybe spotify. Again runs thru aa.
That being said i do use other apps by themselves that cant be played thru aa that require data. Prime video for example. Sometimes i will run this while waiting for my daughter during her after school activities.
With the tello sim card it seems to be connected to tmobile towers. The speeds havnt been the best but havnt been the worst. Sometimes it good and other times its bad. I think the highest download speed ive seen is 6mbps. It can get you by but iant too realiable if it drops. Out of the few limited times i have tried its worked half the time without buffering due to poor speeds. Im located in nj 8 min from manhatten ny. Im desperatly trying to get a sim from verizon onto my account to add to the dudu to try for better speeds.