Have you heard before about IP rating? IP is the short form of Ingress Protection that is a worldwide measurement method that actually measures the dust and water-resistivity of the smartphone. Are you looking for the answer of Is Samsung s9+ waterproof or not right? It is a prevalent question about the s9+ plus; even when a new phone launches in the market, many questions spine on the customer’s head about that phone.
Yes, it is a waterproof smartphone though its water resistivity works on in 1.5-meter deep water for just 30 minutes. But although it is a waterproof phone. The Samsung s9+ plus is an IP68 rated smartphone, which means it is completely dustproof by not completely waterproof.
I think the right term for this device is not waterproof. It should be water-resistant. Waterproof means that no water can harm or damage the device without any limitation of water level.
So never drown your Samsung s9+ in deep water where the water depth is more than 1.5 meters or 5 feet.