• Bluetooth Calling, Line Message Notifications, and Music Playback: The RUIMEN D1 Smartwatch is equipped with a built-in speaker and high-performance microphone. Once connected to your smartphone, you can make and receive calls directly from the smartwatch, turn on the speaker function, and even save call history and check contacts.Even if you have your smartphone in your pocket, or if you are in a situation where you can't take it out straight away, such as when you are driving or cooking, you won't miss any important calls.If you turn on the notification settings for smartphone apps, you will be notified of notifications from LINE, Twitter, Facebook, Instagram, etc. via smartwatch vibration.It also lights up when you raise your wrist and adjust the brightness of the dial, making it easier to check notifications.You can also perform operations such as controlling music playback, pause, previous/next track, and volume directly from the smartwatch. • HD Large Screen: The smartwatch is designed with a high-definition touchscreen, providing a more convenient and comfortable experience when checking LINE messages, sports data, and more.It also supports custom watch faces, allowing you to upload your favorite photos, such as pictures of pets or family, as the display. The band is removable and replaceable, offering a selection of stylish bands in a variety of colors. • Activity Meter, Daily Life Management & IP68 Waterproof: In daily life and various sports or fitness activities, this innovative smartwatch model can record a variety of sports data such as calories burned, steps taken, and distance covered.The app has over 100 different exercise modes for running, walking, soccer, swimming, yoga, and more, to meet your diverse exercise needs and support your exercise management! The smartwatch can be worn on the wrist, and thanks to its lightweight design and breathable band, you can comfortably wear it all day while keeping track of your body's condition without any strain.It can record sleep patterns and blood oxygen levels, and it also includes a menstrual cycle function tailored to women's needs.It brings great convenience and a sense of well-being to daily life! With IP68 waterproofing, you can use it without worry during daily activities like washing your hands or face, and even during intense, sweaty workouts in the summer.Note: Baths, saunas, hot springs, hot springs steam, or high water pressure may cause the product to malfunction. • Large Capacity Battery & Packed with Convenient Functions: Equipped with a long-lasting battery, a full charge allows for 3 to 5 days of continuous use without any issues, and the standby time is approximately 30 days.This reduces the hassle of frequent charging.It begins charging when you connect the included magnetic charging cable to the smartwatch's charging port (battery life may vary depending on actual usage and environment). In addition to basic smartwatch features like notifications and Bluetooth calling, it also includes features to enhance daily comfort and convenience, such as a voice assistant, sleep mode, find my phone, weather forecast, flashlight, calculator, games, alarm clock, stopwatch, and SOS.You can also control it remotely.Compatible with iOS 9.0 and above and Android 5.0 smartphones, so it can be used in a variety of situations. Suitable for a wide range of people. Unisex.The ideal present for Birthdays, Father's Day, Mother's Day, New Year, and Christmas. • Japanese Language App, Accessories, and Technical Certification Approved: The Japanese app (English leg was version not guaranteed) can be downloaded from the Google Play Store and Apple Store, or by scanning the QR code for easy access.Note: This smartwatch is not compatible with PCs or tablet.This smart watch is also TELEC certified, certified for technical compliance, and has passed international safety inspections.The watch’s functions do not constitute medical procedures, and the measured values are for reference only.It cannot be used for medical purposes.Accessories: Smart watch x 1, Japanese instruction manual x 1 (English language version not guaranteed), dedicated charging cable x 1, band x 1.--