Laptop for TA and phone for Execution

I have Moo desktop version but somehow find it easier to trade using phone. Was told that trading using desktop is faster; since I am not scalping or day trade, I reckon it is not a MUST.
I usually spend sometime pre-market to analyze the charts. I will typically spend at least 1st trading hour my desk watching the charts and execute when opportunity arise. Thereafter, will be monitoring via phone app.