Design and Build
The Galaxy Watch Ultra has a sturdy 47.4 x 47.4 x 12.1 mm titanium case weighing about 61 grams. It features a sapphire crystal front, ceramic and sapphire crystal back, and is MIL-STD-810H certified for durability against extreme conditions. The watch is water-resistant up to 10 ATM and IP68 rated, making it suitable for deep swimming and harsh environments. It has a rugged yet refined design aimed at outdoor adventurers.

Display
It sports a 1.5-inch Super AMOLED display with a sharp 480 x 480 pixel resolution and 327 PPI. The screen supports Always-On Display and reaches an impressive peak brightness of 3,000 nits, ensuring excellent visibility even in direct sunlight. The display is protected by sapphire glass for scratch resistance.

Health and Fitness Features
The Galaxy Watch Ultra includes Samsung’s redesigned BioActive sensor suite, capable of tracking heart rate, blood oxygen (SpO2), sleep patterns, stress, blood pressure, and body temperature with improved accuracy. It offers ECG functionality and introduces an AGEs (Advanced Glycation End Products) index for metabolic health insights. The watch supports over 100 workout modes, including running, cycling, swimming, and hiking, with automatic exercise detection and real-time coaching. Unique features include body composition analysis and Race Mode for competing against personal records. Dual-frequency GPS enhances location precision for navigation and workout tracking.

Smart Lifestyle Features
The watch runs Wear OS 5 with Samsung’s One UI 6, providing a smooth and customizable user experience. It offers multiple control methods including physical buttons and touchscreen gestures, plus a customizable Quick Button for launching favorite apps or workouts. Connectivity options include LTE with eSIM, Wi-Fi, Bluetooth 5.3, and NFC for contactless payments. Additional features include message notifications with AI-powered Smart Reply, music control, weather updates, alarms, timers, and Find My Phone. The watch also supports recording in-person conversations with AI transcription on a connected phone.

Battery and Charging
Equipped with a 590mAh battery, the Galaxy Watch Ultra delivers more than a day of typical usage and up to 100 hours in Power Saving Mode. It supports 10W wireless charging via Qi standard and fully charges in about two hours. The battery life can be extended during workouts using exercise power-saving modes, providing up to 48 additional hours.