Samsung first released the Samsung Galaxy S7 and S7 Edge back in March of this year and both phones have been selling really well since the launch, outselling its predecessors, the Samsung Galaxy S6 and S6 Edge by quite a large margin. Both devices come packed with lots of flagship features such as an Exynos 8890 (or Snapdragon 820, depending on the market) SoC in both devices and are IP-68 certified, making both devices water and dust resistant. The South Korean company's latest flagship device, the Samsung Galaxy Note 7 also comes with either the Snapdragon 820 or Exynos 8890 processor, and an IP-68 certification, meaning the phone will still work after being immersed in freshwater of up to a depth of 1.5 meters and for 30 minutes at most.
While it certainly isn't recommended to leave your smartphone immersed in water for more than 30 minutes whether it is water resistant or not, there has been an incident where a Samsung Galaxy S7 was immersed in water for more than 2 hours and was still working perfectly fine after the incident. A user on Reddit who goes by the username aznprd, posted a few images on Reddit which detailed the search and rescue mission for his sisters Samsung Galaxy S7. It all started when his sister went canoeing at a lake in Minneapolis, USA and dropped her device in the lake. The Reddit user then grabbed his scuba gear and met his sister at the lake, and proceeded to look for the device. The Reddit user managed to recover his sisters phone after about 2 hours since it was dropped into the lake. While the lake was only waist deep according to aznprd, the water was really muddy which made it difficult for him to see clearly more than 4-inches in front of him.
Some Reddit users have accused aznprd of being paid to make such claims but aznprd has shot back at them, mentioning that he has been a Reddit user for over 5 years and has never had a sponsored post in the past. While this incident goes to show that the Samsung Galaxy S7 can be submerged in freshwater longer than its rated period of 30 minutes, it still isn't recommended for users to test the limits of this rating as you might end up with a non-functional device. Images of the recovered device can be seen in the gallery below.