What actually makes a good minimalist gift for your dad?
A focused shortlist is better than a long one. Look first at high-utility replacements, compact quality items, consumables and gifts that do not create long-term clutter, remove anything that conflicts with what they already use every day, where one better object could replace a mediocre one and whether consumables are safer than permanent objects, and then ask whether it delivers something he will actually use or enjoy instead of another item that gets thanked for and put away. Avoid dad-joke merchandise unless that is genuinely his sense of humor. That keeps the gift personal without forcing sentiment into the product itself.
The strongest gift ideas usually come from the person’s real habits: what they already use, what they talk about and what would make an existing interest better.