Full list of all 56 Tales of Zestiria achievements. It takes around 100-120 hours to unlock all of the achievements in the base game on Windows.
The base game contains 50 achievements, and there is 1 DLC pack containing 6 achievements.
This is proof that you've collected all items, most of which is equipment. The core concept of equipment is the combination of stat boosts and embedded skills. Items you initially dismissed might in fact hold the key to defeating the most formidable foes.