What is the best running belt for carrying a phone without bounce?

The most consistent no-bounce consensus across specialist communities like r/running and r/Garmin points to the FlipBelt Classic, whose tubular stretch design holds a phone snugly against the body. Reviewers note the key caveat: you must size down for a snug fit, because a loosely fitted or heavily loaded belt of any brand will bounce. For very large phones such as an iPhone Pro Max, the Nathan Zipster Max is repeatedly recommended for staying put on the hip.