The 는데 ending tacks background onto the first clause and 보다 follows with looking, watching or checking. Typically the speaker names what a thing is and then invites you to look at it: it is chocolate, look; this one is Belgium, and look, there is a QR code; I am a size 270, have a look. This is running commentary from someone showing something to a camera rather than a fixed idiom, so do not expect a single translation to fit every case.