The most rugged and capable Apple Watch ever, designed for exploration, adventure, and endurance. With a 49mm aerospace-grade titanium case, extra-long battery life,¹ specialized apps that work with the advanced sensors, and a new customizable Action button. See Dimension section below for band sizing information. | Apple Watch Ultra (Gps + Cellular) 49Mm Titanium Case With Black/gray Trail Loop | | M/L | | 2022) | Titanium | Best Buy