Its always better to record/or photo....in the highest res
You would feel like the biggest horses ***,if you record in 1080 when you could have recorded in 4k....and your watching all your videos you made,regardless of what tv/monitor your watching it on........
I know,because I had lowered my res on photos one time a year ago....now when I look at them on a 1080 tv....I feel like a horses *** for using a lower res to save space,when I could've had much nicer looking photos