The APEX 4 is a mountain watch shaped by years of feedback from top trail and alpine athletes. It brings ultra-precise GPS, long battery life, lag-free mapping, a microphone and speaker, and a full set of training and recovery tools into a light, tough package that is happy on a long day in the hills or on the bike.

The bezel is Grade 5 titanium with reinforced lugs, the lens is scratch-resistant sapphire glass, and the 3rd-generation always-on Memory-in-Pixel display has deeper colours and higher contrast so it stays clear in sun, snow or shade. Choose the 46mm for a 1.3" display and up to 65 hours of All Systems GPS, or the 42mm for a 1.2" display, a smaller wrist footprint and up to 41 hours.

Dual-frequency GPS, a refined vertical GPS algorithm, a precision heart rate sensor and a dual-range barometer combine for accurate pace, heart rate and elevation, even on steep ground. The real-time map engine renders global landscape and topo maps instantly, with turn-by-turn guidance, trail names and POIs. The built-in speaker and mic handle pace alerts, Voice Pins and hands-free calls, and Adventure Journal and 3D flyovers let you review every route.

Features

• Grade 5 titanium bezel with reinforced lugs
• Scratch-resistant sapphire glass
• 3rd-generation always-on MIP display
• Up to 65 hours All Systems GPS (46mm) or 41 hours (42mm)
• Dual-frequency GPS with vertical GPS algorithm and dual-range barometer
• Global landscape and topo maps with turn-by-turn, trail names and POIs
• Built-in speaker and mic for pace alerts, Voice Pins and hands-free calls
• Recovery, HRV, sleep, SpO2 and training load tracking
• Adventure Journal and 3D flyovers

Specification

• Sizes: 42mm and 46mm
• Display: 1.2" (42mm) or 1.3" (46mm) MIP touchscreen, always-on
• Bezel: Grade 5 titanium
• Lens: sapphire glass
• Battery: up to 41 hours (42mm) or 65 hours (46mm) All Systems GPS
• Weight: 44g (42mm) or 51g (46mm) with nylon band
• Colours: Black, White