The Samsung Galaxy Watch Ultra (2025) is built for people who push their limits physically and need a smartwatch that keeps up. The Grade 4 titanium squircle case houses a 1.5-inch AMOLED display protected by sapphire crystal glass, offering a combination of durability and visual clarity that holds up under direct sunlight at 3,000 nits of peak brightness. Durability certifications include MIL-STD-810H, 10ATM water resistance rated to 100 meters, and IP68 dust and water protection.

Under the hood, the Exynos W1000 3nm processor runs One UI Watch 8 on Wear OS 6, bringing Google Gemini to your wrist as the primary assistant. The BioActive sensor covers heart rate, SpO2, ECG, body composition, blood pressure, and sleep apnea monitoring. Galaxy AI layers on top to deliver the Energy Score, personal Running Coach, Antioxidant Index, and Vascular Load monitoring. Storage doubles from the previous generation to 64GB, giving you room for offline music, maps, and apps. Available in Titanium Blue, Silver, Gray, and White.

Key Features:

Grade 4 Titanium Build, Light Enough for All-Day Wear At 60.5 grams, the titanium case delivers a premium rugged feel without the weight you might expect. The watch withstands temperatures up to 55°C, altitudes up to 9,000 meters, and ocean swimming — all backed by MIL-STD-810H military-grade certification.

1.5-inch AMOLED Display with Sapphire Crystal Protection The 480×480 pixel screen hits 3,000 nits of brightness, staying readable in full sun without squinting. Sapphire crystal glass sits on top, significantly more scratch-resistant than standard mineral glass found on most competitors at this price point.

Battery That Goes the Distance The 590mAh battery delivers roughly 60 hours in regular use, up to 100 hours in Power Saving mode, and 48 hours in Exercise Power Saving mode for extended outdoor sessions. Fast wireless charging brings it back up quickly when you do need a charge.

Comprehensive Health Tracking Powered by Galaxy AI The BioActive sensor combines optical heart rate, SpO2, ECG, blood pressure estimation, body composition analysis, and sleep apnea detection. The Energy Score pulls together your sleep data, heart rate trends, and activity levels to give you a daily readiness snapshot several times throughout the day.

Personal Running Coach and Dual-Frequency GPS The Running Coach uses your age, weight, heart rate, and oxygen levels to build training plans tailored to your current fitness level. Dual-frequency GPS maintains accurate tracking even in dense urban environments or areas with limited satellite visibility.

Antioxidant Index — A Standout Feature in This Category The Galaxy Watch Ultra (2025) measures carotene levels through your skin as a proxy for oxidative stress in the body. This reflects diet quality and recovery status, and is a level of health insight rarely seen in smartwatches at any price. Monitoring it over time gives you a concrete signal about how your lifestyle choices are affecting your body.

Google Gemini on Your Wrist, Working Independently Gemini replaces Bixby in this generation and can operate over the watch's built-in LTE without needing your phone nearby. You can ask questions, start workouts, manage reminders, and get contextual answers hands-free.

64GB Storage for Phone-Free Adventures Double the storage of the 2024 model gives you space for full offline music libraries, downloaded maps, and additional apps directly on the watch. Practical for workouts, hiking, or any situation where leaving your phone behind makes sense.

Quick Button and 100+ Workout Modes A customizable Quick Button on the side lets you launch your favorite workout or function in one press. Triathlon mode, multisport tracking, and over 100 sport types are supported out of the box.