【2.01-inch HD Large Screen & DIY Watch Faces】 Features a 2.01-inch large screen for high resolution and smooth touch operation. Notifications and messages can be viewed at a glance. Over 100 watch faces can be downloaded from the dedicated app "DAFIT". DIY watch faces using your favorite photos are also supported. The band is a standard 22mm width and can be replaced with commercially available bands. 【Bluetooth 5.3 Equipped, Call & Notification Function】 When connected to a smartphone, you can answer and make calls, and check call history. Supports notifications from LINE, SMS, and various apps. Includes many convenient functions such as pedometer, weather forecast, alarm, remote camera, voice assistant, find my phone, calculator, and music control. 【270mAh Long-Lasting Battery & Various Exercise Modes】 Can be used for 3-7 days with approximately 2 hours of charging, and up to 20 days on standby. Equipped with over 110 exercise modes to record workouts such as running and mountain climbing. Supports health management with step count, calorie consumption, heart rate, sleep monitoring, and blood oxygen level measurement. 【IP67 Waterproof & Multi-Language Support】 IP67 waterproof performance ensures peace of mind during hand washing, rainy weather, and sweaty exercise. Compatible with smartphones with Android 6.0 / iOS 10.0 or later, and Bluetooth 5.0 or later. Supports over 23 languages, including Japanese, and can be easily switched from the app. Immediate purchase is welcome. Color: Black Other products can be found here: #Ottotto'sShop