When you go to a sauna or a large public bath, you sometimes lose track of time, right? Especially in places you're not used to. That's why a smartwatch is a must-have for sauna and bath lovers. The color is black. Please check the photos carefully before purchasing. Personally (in the third photo), I previously purchased a different color and always use it in 90-degree dry sauna rooms and salt sauna rooms. Of course, it can handle temperatures over 90 degrees. Compatible with iPhone and Android. Basic Usage: The smartwatch vibrates to notify you of incoming calls, LINE messages, and emails. You can also monitor your sleep environment, such as deep sleep and light sleep. ⚫︎ Smartwatch, wristband type ⚫︎ With charging cord ⚫︎ Waterproof ⚫︎ Watch with 1.47-inch large screen, full touch Smart Watch ⚫︎ Incoming call notifications 24 hours a day ⚫︎ Sleep monitoring ⚫︎ Multiple exercise modes ⚫︎ Weather forecast ⚫︎ Customizable watch face ⚫︎ With Japanese instruction manual ⚫︎ Blue Clot Sauna