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COROS Apex Pro vs Garmin Forerunner 165

Weight and specs compared for 2026 — and which one to choose.

Garmin Forerunner 165 is the lighter option — 10 g lighter than the COROS Apex Pro (20% less weight). If grams matter to you, that is the one to beat.
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Spec COROS Apex Pro Garmin Forerunner 165
Weight 49 g · 0.049 kg · 0.11 lb 39 g · 0.039 kg · 0.09 lb
Brand COROS Garmin
Category Navigation Navigation
COROS Apex Pro
49 g

Lightweight GPS multisport watch with dual-frequency GNSS and up to 75 hours battery life, ideal for ultralight backpacking and trail adventures.

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Garmin Forerunner 165
39 g

Sleek GPS sports watch at 1.4oz. Lightweight design with multi-GNSS support.

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COROS Apex Pro vs Garmin Forerunner 165: which should you buy?

If saving weight is your priority, the Garmin Forerunner 165 wins — at 39 g it is 10 g (20%) lighter than the COROS Apex Pro (49 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 navigation page, or browse the full gear weight database.

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