The list for what you do need is shorter

Mainly:
1. Self Motivation
2. Wiilingness/ability to learn
3. Ability to keep your mouth shut and listen to folks that know more than you.

With that being said, I know exactly what you mean, which is the distraction caused by many of these gadgets can cause a person to loose focus on the things that really matter. Scouting. Stand location. Concealment. Play the wind (scent-lok or not). Mental preparedness.

Do these things, keep your eyes open and learn. Know your limitations but always strive for improvement.