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Anker PowerCore 20100 vs Garmin Epix Gen 2 Sapphire Smartwatch

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

Garmin Epix Gen 2 Sapphire Smartwatch is the lighter option — 286 g lighter than the Anker PowerCore 20100 (80% less weight). If grams matter to you, that is the one to beat.
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Spec Anker PowerCore 20100 Garmin Epix Gen 2 Sapphire Smartwatch
Weight 356 g · 0.356 kg · 0.78 lb 70 g · 0.070 kg · 0.15 lb
Brand Anker Garmin
Category Electronics Electronics
Anker PowerCore 20100
356 g

High capacity 20100mAh power bank for extended trips.

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Garmin Epix Gen 2 Sapphire Smartwatch
70 g

AMOLED multisport GPS watch with 16-day battery, sapphire edition. 1.3" always-on display, 65-hour GPS tracking, built-in maps.

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Anker PowerCore 20100 vs Garmin Epix Gen 2 Sapphire Smartwatch: which should you buy?

If saving weight is your priority, the Garmin Epix Gen 2 Sapphire Smartwatch wins — at 70 g it is 286 g (80%) lighter than the Anker PowerCore 20100 (356 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.

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