← Gear database

Garmin Instinct 3 Solar 45mm vs Suunto Core All Black

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

Garmin Instinct 3 Solar 45mm is the lighter option — 27 g lighter than the Suunto Core All Black (34% less weight). If grams matter to you, that is the one to beat.
shopping_cart Check today's price on Amazon
Spec Garmin Instinct 3 Solar 45mm Suunto Core All Black
Weight 53 g · 0.053 kg · 0.12 lb 80 g · 0.080 kg · 0.18 lb
Brand Garmin Suunto
Category Electronics Electronics
Garmin Instinct 3 Solar 45mm
53 g

Rugged solar-powered GPS watch. 36-90 days smartwatch battery with solar charging capability.

Full details →
Suunto Core All Black
80 g

Outdoor watch with altimeter, barometer and compass.

Full details →

HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.

Garmin Instinct 3 Solar 45mm vs Suunto Core All Black: which should you buy?

If saving weight is your priority, the Garmin Instinct 3 Solar 45mm wins — at 53 g it is 27 g (34%) lighter than the Suunto Core All Black (80 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.

More electronics comparisons