The Galaxy Watch Ultra (2025) is built for people who spend long stretches outdoors, on the trail or on the job. This SKU, SM-L705UZS1XAA, is the 47mm LTE model in Titanium Silver for the US market (XAA, unlocked). It is paired with a Dark Gray Marine band in Medium/Large. It runs One UI 8 Watch on Wear OS Powered by Samsung, and the Quick Button moves between workouts with one press. The embedded SIM supports 4G LTE FDD on bands including B2, B4, B5, B12, B13, B14, B66 and B71, plus TDD B40, with 3G WCDMA fallback. That means you can leave your phone at home and still handle calls and messages. Wi-Fi 802.11a/b/g/n on 2.4GHz and 5GHz, Bluetooth 5.3 and NFC are included. Positioning uses GPS, Glonass, Beidou and Galileo. Samsung rates the 590mAh battery up to 80 hours with Always On Display off and 60 hours with it on. Power saving mode extends that to 100 hours, and outdoor GPS workouts reach up to 48 hours in Exercise Power Saving. The 1.5-inch 480 x 480 Super AMOLED display has a Night mode for easy reading after dark. The 47.4 x 47.1 x 12.1 mm body weighs 60.5 g and carries a 10 ATM rating. A penta-core processor, 2GB of memory and 64GB of storage (50.0GB available) keep apps and offline content responsive. Galaxy AI provides Energy Score for daily readiness and estimates Functional Threshold Power for cyclists with a paired power meter. The AGEs index offers insight into diet and metabolic health. A wireless charger comes in the box.