Cairn is a watch face for mountain people who also live in cities. Built for hiking, ski-touring, light alpinism — and for the in-between days when you want a beautifully designed face that still tells you what the sky is doing. Inspired by 1970s Patagonia catalogs and USGS topographic maps. A cairn is a stack of stones that marks a path through wild country — this watch face is your orientation point in time and elevation. WHAT YOU SEE · Time, date, and a sunrise-to-sunset daylight arc with a moving sun marker · Altitude in meters or feet, updated continuously from the barometric sensor · Temperature from the watch sensor · Barometric pressure with a rising / falling trend indicator · Today's elevation gain · Heart rate · Body Battery · Watch battery percentage · GPS coordinates WHAT IT DOES · Adaptive day / night theme that follows actual sunrise and sunset for your location · Altitude indicator highlights when you climb above 2500 m · Pressure-drop warning when the weather is turning · Battery-conscious always-on display, optimized for AMOLED · Customizable units (metric or imperial), time format, and accent color COMPATIBILITY Fenix 7 / 7 Pro / 7X · Fenix 8 series · Epix Pro · Forerunner 965 / 265 · Enduro 3 · Instinct 2 / 3 · Venu 3 (see device list for full support). PHILOSOPHY A watch face should respect both worlds — the technical demands of a ridge at 3500 m and the aesthetic standards of a well-curated wardrobe. Cairn is built to look at home on either wrist. Made for high places.