Mrwhosetheboss bought the thinnest hardware he could find and put the whole haul into one video. He paid for it himself, and it came to more than most people put into an entire living room of electronics. The useful question is not which device won. It is what each maker moved, shrank or relocated to get its number down — and that part is answerable from the makers' own published figures, which is where this piece stays.
Thin is a number, and the maker picks where to measure it
Every thinness figure is a measurement decision before it is an engineering one. Samsung puts the Galaxy Z Fold8 Ultra at 4.1 millimeters and 215 grams, measured open, and its announcement copy does not lead with a folded figure at all. Apple's own tech specs page gives the iPhone Duo as 5.2 mm open, 11.3 mm closed, at 254 grams. Both sets of numbers are the makers' own. Only the closed measurement describes what your pocket holds, and only one of those two companies published one.
That is not a foldable quirk. A slab phone's headline thickness is usually taken at the flat part of the back, not at the camera bump that actually meets the table — and the bump is exactly where the depth a thin chassis could not spare ended up. Line thin devices up side by side and the ranking shifts depending on where the caliper lands. The quarter's foldables all led with the open measurement for the same reason.
LG's wallpaper TV does not delete the box. It moves it.
The clearest case of that trade this year is not a phone at all. LG announced the OLED evo W6 Wallpaper TV at CES in January 2026 and describes it as nine-millimeter class and the world's thinnest true wireless OLED. The superlative is LG's own and nobody here has measured it; what is not in dispute is that a panel sitting flush against drywall does not look like any other television.
LG's own fine print explains how. Every input goes to the Zero Connect Box, a separate unit that can sit up to ten meters away and sends 4K video and audio to the panel wirelessly. Devices still connect by cable — to the box. And the footnote most coverage skips: LG states that a power cable is required at both the screen and the box, and that a slight gap between the TV and the wall is possible.
So the wall gets a nine-millimeter panel and one cord, and a cupboard somewhere gets everything else. Whether that is a win depends entirely on whether you have a cupboard. If you are choosing a television on what the picture does rather than on its profile, the panel-technology comparison is the more useful place to start.
What a millimeter costs is volume
Thickness is not a surface property. Taking a millimeter off a phone takes it across the whole footprint, and four things live in that volume: the battery, the vapor chamber or graphite stack that pulls heat away from the chip, the speaker enclosure, and the depth a larger camera sensor needs. Those are the four that give, in roughly that order, and every maker that goes thin is choosing among them whether or not it says so.
What a haul does not establish is how much. Handling a phone tells you it feels thin and that it warms in the palm; it does not produce a discharge curve or a sustained-load thermal trace, and nobody should read one into it. Makers publish capacities and their own endurance claims. Independent measurements on the 2026 ultra-thin models are still scarce, and where they do not exist yet, the honest answer is that it is not known.
A haul is not a test bench
That matters for how much weight to put on the result. Buying every thin device at once and handling them back to back is hard to replicate, and it does surface what a spec sheet hides — flex, heat against the hand, whether a case erases the whole point of the purchase. It is also one unit per model, and a short acquaintance with each rather than a season of ownership, by someone unusually practised at holding phones. Telling an engineering test from a marketing claim is the habit to bring to any of it, as is knowing what a bend or drop segment actually proves.
If you already own one of these
None of it reaches the device in your hand. Thickness, battery volume, thermal mass and where the ports live are all set at the factory, and no update moves them. If your thin phone runs warm under load, or wants a top-up mid-afternoon, that is the trade that came in the box, and it will not be patched out later.
What the video does change is the next decision, and the questions it points at are unglamorous ones. Where does the camera bump sit when the phone is flat on a desk. Does the case you will inevitably put on it erase the millimeter you paid extra for. Is there anywhere to put the connect box. Thin is the easiest quality to demonstrate in a shop and the hardest to judge before you live with it — and on the evidence of this year, a device's shape changes daily use more than its thickness does.
The thin haul is one of a run of videos where the same creator buys hardware most people never get near. The same channel taking an AI claim apart is its sceptical companion. Where the thinness question gets answered the hard way is a different format entirely, and what a bend or drop test actually proves is worth reading before you trust one. If you are weighing a thin phone against a thicker one, what actually improved in foldables this year covers the same trade using the manufacturers' own published numbers.
Last updated September 22, 2026