Team Oceans, a startup from Sweden, introduced the Oceans S1 wearable device. This is a multifunctional personal gadget for divers, similar to an underwater smartphone. Instead of radio waves propagating poorly in this environment, the communication device uses ultrasound. However, to communicate in a traditional manner will not work. The system helps maintain contact only on paired devices. Oceans S1 is designed as a smart watch. It can be worn on the wrist, using the basic information options for the diver. There is also a depth sensor, a digital compass, a water temperature sensor, information about the maximum depth, a timer that monitors oxygen residues. All data is displayed on a 2.2-inch diagonal color Retina display. After exiting the water, they can be transferred via Bluetooth to the application installed on the smartphone under Android or iOS. “Communication” the authors of the project call the opportunity for group members to quickly ping under water. After clicking on the button, all Oceans S1 within a radius of 15 meters will immediately begin to vibrate. At the same time, the screen displays which device is signaling from. Further interaction will be carried out as usual, with gestures. But for the initial attention grabbing, you don’t need to wave your hands. Moreover, the development of elementary code for the transfer of basic commands to comrades is a simple matter. In extreme cases, the good old Morse code is also suitable. The weight of the new product is 95 grams. Oceans S1 can be immersed to a depth of 90 meters. The gadget will function for 10 hours without recharging. Internal memory is enough to record reports of 80 hours of work or 500 dives. For startup investors, the device will cost $ 325. When the product enters the market, it will rise in price to $ 565.