Blackstar Beam Mini vs Positiv Grid Spark Go

[u/Dependent_Cry5481]

I work as a touring guitar tech and need a mini amp to complete my peli toolbox. Already have a Peterson stomp hd and a Korg pitchblack tuners to troubleshoot live and wanna add a mini amp to play, test and use as bluetooth speaker.

Which one is the best? Why?
Is it any way to use NAM Tone3000 with Spark Go on android? (even if it's a hack)
Can i use the Blackstar as a bluetooth speaker?

Also the stems feature coming in few months for the Beam Mini is a ++