Samsung Galaxy Watch4 Aluminum 40mm LTE Smartwatch (Black)

The Samsung SM-R865UZKAXAA is a Galaxy Watch4 that pairs a 40 mm aluminum case with LTE capability, giving you a smartwatch that works on its own network connection or alongside an Android phone. It runs on the Exynos W920 processor at 1.18 GHz, and that responsive chip, together with 16 GB of internal storage, lets you load apps, music, and watch faces without lag.

The AMOLED display measures 396 × 396 pixels, so text and graphics look crisp even in bright daylight. Corning Gorilla Glass DX+ shields the screen from scratches, and the fluoroelastomer band stays comfortable whether you are typing at a desk or sprinting on a track.

Health tracking sits at the heart of the experience. Built-in sensors read heart rate, blood oxygen, and body composition, and you can run on-demand ECG checks right from your wrist. Automatic sleep monitoring breaks down each stage of your night, and the watch logs dozens of workouts, from swimming laps to interval training.

Thanks to LTE, Bluetooth 5.0, Wi-Fi, GPS, and NFC, the watch handles calls, messages, streaming music, navigation, and contactless payments even when your phone stays at home. Wear OS by Samsung keeps everything familiar for Android users and opens the door to Google Play apps and watch faces.

Durability comes built in. The watch meets IP68 and MIL-STD-810G standards, so it resists dust, shock, and water down to 164 feet. A 247 mAh battery powers the watch through the day and recharges wirelessly on any compatible Qi pad or the included puck.

Whether you are a runner who wants phone-free GPS tracking, a commuter who prefers tap-to-pay convenience, or someone who simply likes keeping health stats in one place, this Galaxy Watch4 fits smoothly into daily life.

Highlights:

• Exynos W920 dual-core processor at 1.18 GHz for smooth performance
• 16 GB of storage for apps, playlists, and watch faces
• 396 × 396 AMOLED touchscreen protected by Gorilla Glass DX+
• LTE, Bluetooth 5.0, Wi-Fi, GPS, and NFC for connected use on and off your phone
• Wear OS by Samsung with full Android compatibility
• Heart rate, ECG, SpO2, body composition, and sleep tracking sensors
• IP68 and MIL-STD-810G ratings for dust, shock, and water resistance to 164 feet
• 247 mAh battery with convenient wireless charging
• Lightweight aluminum case and durable fluoroelastomer band