my new iphone 6s cannot turn on. already charger for 1 hour

What could be faulty? Cable, Charger, Charging port, Battery or any other internal component.

See this support guide and follow ALL the steps provided:

If your iPhone, iPad, or iPod touch won't charge - Apple Support

If you get no help, have your iP6s inpected at an Apple Store or Authorized Service Provider:

Apple – Location Selector

Regards

Giulio

Go through the suggestions in this support article.

If your iPhone, iPad, or iPod touch won't turn on or is frozen - Apple Support