Everything I've tested.

Scored 7 out of 10; two layers of graphene could stop bullets while being practically invisible.

MIT's radio-wave AI system tracks people through walls and he finds it incredible.

A record-thin speaker, 1.1cm, with surprisingly full sound and an eight hour battery.

Turns any object into a speaker using vibration and delivers surprising bass.

A custom PC built into a motorised desk with electrochromic glass and top-end parts, though not the thinnest thing in the video.

A very thin 1080p portable display that feels premium, with an aluminium and glass shell.

A 0.5cm mouse that is an incredible novelty, but he struggled to see who would buy it.

A 0.15cm wallet that is very cool but borders on being a 3D printed clip.

A mouse mat so thin it feels like gripping air, and he found it ridiculous.

Wallet-sized earphones that are impressively slim, though he wondered about battery life.

Credit-card sized 3,000mAh power bank with built-in USB-C cable, not as useless as it sounds.

Sci-fi looking 0.8cm glass keyboard with no key travel, so not the best to use.

A strange flattened camera that feels solid and takes quirky, old-school style photos.

Astonishingly thin and light, but the dim screen and weak speakers make it feel like a dummy unit.

A pocket printer that is fast and prints edge to edge, which impressed him.

Extremely thin folding sunglasses, 0.9cm folded, so thin he felt they could slice fruit.

Very thin sleep earbuds that fade music out and track sleep, and he was a big fan on first impression despite average sound.

The coolest piece of tech he has ever held: a fully working, flexible Android device barely thicker than paper.

Hugely satisfying peeler that removed the skin perfectly.

It does hold paper together without staples, though it works by wedging the paper.

Very sharp and fun to wear, but the blade is not deep enough to cut vegetables.

Stripped the kernels off the cob cleanly and felt satisfying to use.

Looks very cool but he noted it could be distracting in a car.

A self-powered LED shower head he loved, putting it in his hall of fame.