Coros Apex 4 (42mm with silicone strap) vs Flextail Zero Power 5000C
Weight and specs compared for 2026 — and which one to choose.
Rugged mountain sports GPS watch with AMOLED display, up to 85hr GPS battery. 56g in 42mm size, available with nylon strap option (lighter at 51g)
Full details →World's lightest 5,000mAh power bank at only 7.1mm thin. Features carbon fiber design, 20W input charging with full charge in 2 hours, and proprietary AI coolin...
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Coros Apex 4 (42mm with silicone strap) vs Flextail Zero Power 5000C: which should you buy?
If saving weight is your priority, the Coros Apex 4 (42mm with silicone strap) wins — at 56 g it is 29 g (34%) lighter than the Flextail Zero Power 5000C (85 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.
See where both rank against everything else in this category on the lightest electronics page, or browse the full gear weight database.