Both the LG XBoom Bounce and the Marshall Middleton II share an IP67 waterproof rating with a 1 m depth tolerance, meaning neither has an advantage in ruggedness — both can handle rain, splashes, and brief submersion equally well. Their overall volumes are also remarkably close (2435.6 cm³ vs. 2479.4 cm³), so they occupy essentially the same amount of space. The real dimensional story, however, is in shape: the XBoom Bounce is noticeably wider (261.62 mm) but shorter (99.06 mm), giving it a flatter, more horizontal profile, while the Middleton II is taller (110 mm) and narrower (230 mm), lending it a more upright, classic speaker silhouette. Neither form is objectively superior — it comes down to placement preference and bag ergonomics.
Where the two products diverge most sharply is weight. The XBoom Bounce comes in at 1315 g, while the Middleton II tips the scales at 1800 g — a difference of nearly 485 g, or roughly the weight of a full water bottle. For a portable speaker carried to the beach, a campsite, or a backpack trip, that gap is very tangible over the course of a day. The Middleton II does counter with a neodymium magnet driver, which typically enables stronger magnetic flux in a more compact driver assembly — a meaningful hardware quality indicator — but the XBoom Bounce brings its own lifestyle features: RGB lighting for ambiance and a detachable cable, which adds practical longevity since cables are a common failure point.
On balance, the LG XBoom Bounce holds a clear edge in the Design category for users who prioritize portability, thanks to its substantially lighter build and the added convenience of a replaceable cable. The Marshall Middleton II appeals more to those who prefer a traditional aesthetic and value the engineering pedigree of a neodymium driver, but must accept a noticeably heavier package in return.