Well, we cannot say that Samsung Galaxy S9 Plus is 100% waterproof device but it has the IP68 rating. As per the company, Galaxy S9 Plus is water resistant up to 5 feet of water for up to 30 minutes.
Yes, Samsung Galaxy S9 Plus does have the IRIS scanner.
Samsung Galaxy S9 Plus has one of the finest display a smartphone can have. It has 6.2 Inch 18:9 Full View display with Super AMOLED resolution. It offers 530 PPI contrast and also has Corning Gorilla Glass 5 level protection from scratches. Galaxy S9 Plus has VR headset support, too. In addition, you will get HDR10 and Always-On display.
Yes, Samsung Galaxy S9 Plus does have stereo speakers.
The Galaxy S9 Plus is a good phone, but it's more like a Galaxy S8 2 than a whole new flagship. And that, is disappointing.
The Samsung Galaxy S9 Plus is a beast of a smartphone – a great all-rounder and the pick of Samsung’s 2018 flagships