Long GPS endurance, trail tools, and optional inReach make the watch appealing for very long races. Solar is particularly compelling when runtime matters more than a colorful display.
Pros: battery life, mapping and navigation
Cons: value for money, LTE connectivity
Solar endurance, large-model runtime and consolidated multiday records suit ultrarunning well. Smaller AMOLED models and reduced GPS runtime can require charging or a specialist alternative.
Pros: mapping and navigation, battery life
Cons: value for money, software smoothness