Polar has launched the Grit X Pro outdoor smartwatch, and although it doesn't seem to have changed much over the current model, it does also come in titanium.
Polar Grit X Pro GPS Watch In-Depth Review
Polar Grit X Pro Sapphire Watch, Black
Ahead of the Apple Watch Pro launch, four 'alternate' smartwatches designed for athletes and hikers
Polar Grit X Pro Titan first look: Premium materials, dashboards, tests and coaching
Polar Grit X Pro Titan first look: Premium materials, dashboards, tests and coaching
Polar Grit X Pro review
Polar Grit X Pro review - a worthy contender among sports watches
Polar Grit X Pro Titanium & Vantage V2 - New Route Features - A How To Guide
Polar Grit X Pro - GPS Multisport Smartwatch - Military Durability, Sapphire Glass, Wrist-based Heart Rate, Long Battery Life, Navigation - Ideal for Outdoor Sports, Trail Running, Hiking : Electronics
WATCH REVIEW: Polar Grit X Pro - Canadian Running Magazine
Polar Grit X Pro Review: Toughened Up - Tech Advisor
Polar Grit X Green Outdoor Multisport watch