When we emit transaction, we can choose from high, to normal and low priority.
And the amount of fees is displayed.
I don't know if SPV can know the size of the transaction but ... can we add an other indicator with the
sat/B ?
With
sat/B indicator, we can use this (example) site to view the latest
sat/B fees in many realtime transactions :
https://tradeblock.com/bitcoin and choose visely if MEMpool is used, too.Thanks