The most critical thing; can you effectively use it with your less dominant hand, your left hand?

In modern day life, battery life is overrated. Most the time you’ll have easy access to a charger, the only time you will ever run out of battery on your phone is if you’re on the road. But then again, even if you’re on the road, even nowadays airplanes have a spot to charge your phone anyways. You don’t really need to worry about battery life.

Once again, the best and ideal phone is maximal is small, max movie light. Why? This will actually age you and your productivity. The lighter the phone, and the smaller it is, the last hand and finger fatigue you will have.