The frame is built around the word itself and holds a photo you choose, which makes it clearly a gift for him rather than a generic frame with a picture in it.
You're giving him a memory he'll see every day rather than an object, and that's what gets a frame a permanent spot on a shelf instead of a drawer.
Because you pick the picture, you control entirely what it means — a recent one, an old one he hasn't seen in years, or something only the two of you would find funny.
That's more personal than engraving could manage, and there's no lead time, no spelling to check and nothing to go wrong between ordering and giving.
An old photo is usually the stronger choice. A current one he's already seen, whereas something from twenty years ago gets a genuine reaction and a story to go with it.
It suits sentimental dads, family-focused ones, and the quietly proud types who'd never buy anything like this for themselves but keep it out once it's given.
It's a good pick for Father's Day, a birthday, Christmas or a surprise from the kids, and at this price it's an easy win rather than a considered expense.
Print the photo properly rather than using a home printer. The frame does the work here, and a slightly soft inkjet print on thin paper is the one thing that undercuts the whole effect.
✔ Frame shaped around the word Dad, built for one photo
✔ You choose the picture, so you choose what it means
✔ No engraving lead time and nothing to spell wrong
✔ An old photo gets a far better reaction than a recent one
✔ For dads who'd never buy a keepsake themselves