Samsung Galaxy Watch8 (Bluetooth, 40mm) Smartwatch A compact and lightweight everyday design The Samsung Galaxy Watch8 (40mm Bluetooth) is designed with a compact form factor that focuses on comfort and everyday usability. It features a lightweight build of around 30g with a slim profile, making it suitable for all-day wear. The watch uses an aluminum case with sapphire crystal protection , offering a balance between durability and a refined appearance. Its smaller 40mm size is intended for users who prefer a more minimal and unobtrusive smartwatch design. AMOLED display with clear visibility It includes a 1.34-inch Super AMOLED display with a resolution of 438 × 438 pixels , delivering sharp visuals and detailed watch faces. Always-on display support High brightness (up to ~3000 nits in some conditions) Smooth and responsive touch interaction This display setup is designed for readability in different lighting environments, including outdoor use. Performance with efficient 3nm processor The device is powered by the Exynos W1000 processor (3nm architecture) , paired with: 2GB RAM 32GB internal storage This configuration supports general smartwatch functions such as app usage, notifications, and health tracking with improved efficiency and responsiveness. Health and fitness tracking features The Galaxy Watch8 includes a range of built-in sensors for tracking various activities and health-related data: Optical heart rate monitoring Blood oxygen (SpO) tracking Body composition (BIA) sensor Sleep tracking and activity monitoring These features are designed to provide insights into daily routines, workouts, and general wellness patterns. Connectivity and software experience This model supports Bluetooth connectivity along with: Wi-Fi (2.4GHz & 5GHz) NFC support GPS functionality It runs on Wear OS with Samsung One UI Watch , offering access to apps, notifications, and integration with Android smartphones. Battery and charging The 40mm version includes a 325mAh battery with support for wireless fast charging . Designed for daily usage cycles Charging via WPC-based wireless charger Efficiency improvements from the 3nm chipset Battery performance can vary depending on usage patterns and enabled features.