The Garmin Venu 4 (45mm) in Black w/ Slate + Black is the larger-cased version of Garmin's newest everyday health and fitness smartwatch, aimed at buyers who want a bigger, more legible AMOLED display and slightly longer battery life than the 41mm model. It has a 1.4-inch AMOLED display in a metal-designed 45mm case, with more than 80 preloaded GPS and indoor sport apps covering running, cycling, golf, swimming and triathlon, backed by multi-band GPS with SatIQ technology for improved positioning accuracy. Battery life runs up to 12 days in smartwatch mode, up to 26 hours in GPS mode, up to 20 hours with GPS-only tracking, and up to 9 hours with GPS plus on-watch music playing. Connectivity covers Bluetooth, ANT+ and Wi-Fi, and the watch carries Garmin's full 24/7 health and wellness suite (heart rate, sleep, stress, Pulse Ox) alongside a built-in flashlight. This 45mm size suits buyers who want the largest, most legible screen and the longest GPS battery life in the current Venu 4 range; those who prefer a smaller, lighter watch should choose the 41mm Venu 4 instead.