Hot Hardware published a review on the Samsung Galaxy S8 And S8+ Hands-On Demo And First Look From Unpacked 2017 A quote from the article:

We spent the better part of this morning at Lincoln Center in New York City attending Samsung's Unpacked 2017 event, where the company unveiled its brand-new Galaxy S8 and S8+ smartphones and a few new accessories. If you missed our early coverage of the event, you can check out the initial announcement and the new Gear 360 Camera, cool DeX Dock, and Gear VR accessories on the main page.

While at Unpacked 2017, however, we also got some hands-on time with both devices that we captured on video that we wanted to share with you...

 Samsung Galaxy S8 And S8+ Hands-On Demo And First Look From Unpacked 2017 @ HotHardware