The iPhone 6 and 6 Plus don't officially launch until Friday, but it seems that some users have managed to get their hands on the two devices early. YouTube channel UNDERkg, which appears to be based in South Korea, has posted hands-on videos for both a Space Gray iPhone 6 Plus and a Gold iPhone 6.
The two clips are 4 minutes long and 7 minutes long respectively, and are both shot in 4K for excellent detail. The videos do a good job of exploring the external hardware of the handsets, as well as some of the more nuanced features in the iOS 8 software. If you have the time, they're definitely worth a look.