Here are all the results with descriptions
An Activity Tracker
He's the athletic type, always pushing himself physically in what he can and can't do. He's focused on eating right, burning the right number of calories, and gaining the muscle mass. If he doesn't have one already, or complains that his just isn't cutting it anymore, it maybe time for an upgrade.
A New Controller
He's a gamer, and as such, he never misses a new game release. He reads gaming news, he's up to date on the delays and launches, the pre-orders and collector's editions. So it makes sense that you should get him a new controller. A customized one, preferably, which can be ordered online, or done yourself. Don't get him a new game, as chances are he's already got it pre-ordered, maybe even paid in full. Too messy.
A Comic Book Compendium
He's a lover of comics, and actively hangs out in comic shops when he's got some extra free time. He has issue after issue, series after series. And when you bring something up, he could talk about that story for days on end. Maybe it's time you helped him out with a compendium! It's a bunch of comic book issues collected into one giant book, hence making the bookshelf look nicer.
A Year's Worth of A Streaming Service
He loves TV shows and movies. He loves stories and characters. And he can't get enough of the visuals, like when a setting is perfectly matched with the story being told on the screen. Each time you guys go to the movies, he's excited, even though he's done it a million times before. It's time you did him a solid and got him a year's worth of a streaming service you think he'd enjoy.
A New Tool/Toolset
He's always working with his hands, making something, retouching something, fixing something. Could be woodworking, painting, carpentry, carving, metal working, etc. Whatever it is, it gives him peace and focus. Maybe it's time you added to his tool list so he has something new to use? Something that could allow him to do something different, like a new carving tool, or a new type of paintbrush?