Coros APEX 4 (42mm) vs Flextail Zero Power 5000C
Weight and specs compared for 2026 — and which one to choose.
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Coros APEX 4 (42mm) vs Flextail Zero Power 5000C: which should you buy?
If saving weight is your priority, the Coros APEX 4 (42mm) 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.