<b>Lightweight<br>Challenger...</b><br>Mighty in spirit, this stylish smartwatch has a lightweight yet strong aluminum alloy middle frame integrated into the sleek watch body, and comes complete with a soft and skin-friendly silicone strap.<br><br><b>...Heavyweight<br>Power.</b><br>This ultra-compact smartwatch packs a mega-powerful 270 mAh battery, for energy that challenges the limits of size.<br><br><b>Color & Clarity<br>Beyond Compare...</b><br>Colorful, crisp, and crafted from elegant glass, the 1.65" display of the Amazfit GTS 4 Mini makes your data shine like never before.<br><br><b>...Personalization<br>Beyond Imagination.</b><br>Whether you prefer a watch face with a traditional look, or something more modern, maximize your style with the Amazfit GTS 4 Mini.<br><br><b>Sports Modes</b><br>Walking, running, cycling, yoga, and more. Whichever activity makes you challenge yourself, you'll likely find a sports mode for it on the Amazfit GTS 4 Mini.<br><br><b>Swim with Confidence...</b><br>A water-resistance grade5 of 5 ATM means the Amazfit GTS 4 Mini can resist the equivalent of up to 50 meters' water pressure. And whenever you fancy a trip to the pool or the beach, the watch's Pool Swimming and Open Water Swimming sports modes can scientifically track your swimming data.<br><br><b>…Position with<br>Precision.</b><br>The watch supports five satellite positioning systems to help you make the most of your journeys into the great outdoors6, and uses circularly-polarized antenna technology to improve positioning performance and accuracy. Challenge yourself to see more of the big open world.<br><br><b>Health Made Effortless...</b><br>The days of stopping what you're doing to measure your health data are over.<br><br><b>...Measurement Made Easy.</b><br>Easily test9 your heart rate, blood-oxygen saturation (SpO2) and stress level simultaneously, with a single tap of the watch, for a result in as quick as 45 seconds.<br><br><b>Dare to Dream...</b><br>Track your sleep quality11 through the light and deep sleep stages, and even the REM stage - where dreaming is said to occur. You can check your results directly on the watch when you wake up, for maximized convenience.<br><br><b>...Plan to Achieve.</b><br>Challenge yourself to achieve a weekly PAI score of at least 100, for scientifically-studied health benefits12. PAI takes data from your workouts, and everyday activities like playing with your pet, and converts it all into a single-value score, unique to you.<br><br><b>Advanced Assistance...</b><br>Challenge what it means to take control of your day. Easily set an alarm, ask a question, get a translation and more, with the Amazon Alexa13 feature of the Amazfit GTS 4 Mini.<br><br><b>Features that Challenge the Limits of Size...</b><br>Make daily life a breeze with a wide selection of helpful features, including<br>sedentary reminders to help you keep active throughout the day.<br><br><b>...Support that Surpasses the Supreme.</b><br>The Zepp App on your phone conducts health and exercise data display and analysis,<br>features a watch face store, provides system updates for your smartwatch, and helps<br>you intelligently manage your device.Amazfit GTS 4 mini. Display diagonal: 4.19 cm (1.65"), Display technology: AMOLED, Display resolution: 336 x 384 pixels, Touchscreen. GPS (satellite). Battery capacity: 270 mAh. Weight: 31.2 g. Band material: Silicone, Band colour: Black. Operating system installed: Amazfit OS