<h2 data-start="413" data-end="431"><strong data-start="416" data-end="431">Description</strong></h2> <p data-start="433" data-end="883">The <strong data-start="437" data-end="484">Amazfit GTS 4 Smart Watch in Infinity Black</strong> is a stylish and feature-rich wearable that merges elegant aesthetics with high-end functionality. Equipped with a large 1.75-inch AMOLED display, it offers vibrant colors and crisp visuals that enhance the user experience whether indoors or in direct sunlight. The smartwatch is constructed with an aluminum alloy frame and a soft fluoroelastomer strap, combining durability with day-long comfort.</p> <p data-start="885" data-end="1261">Designed for advanced fitness and lifestyle tracking, the GTS 4 features dual-band circularly polarized GPS and supports six satellite positioning systems for enhanced accuracy during outdoor activities like running or hiking. The smartwatch also supports Bluetooth calling with a built-in speaker and microphone, and it includes Amazon Alexa for voice-controlled convenience.</p> <p data-start="1263" data-end="1667">On the health front, the Amazfit GTS 4 provides continuous monitoring of heart rate, blood oxygen saturation (SpO₂), stress levels, and detailed sleep tracking including REM sleep and nap detection. It supports over 150 sports modes with automatic workout detection for several popular activities. The Zepp OS 2.0 operating system powers the device, offering smooth performance and support for mini apps.</p> <p data-start="1669" data-end="2047">Battery life extends up to 8 days under typical usage, with extended modes offering up to 16 or even 30 days depending on usage settings. With 5 ATM water resistance, the smartwatch is suitable for swimming and showering. It also supports app alerts, music and camera control, and customizable watch faces, making it a comprehensive smart companion for Android and iPhone users.</p>