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BioLite SolarPanel 5+ vs Polar Grit X

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

Polar Grit X is the lighter option — 186 g lighter than the BioLite SolarPanel 5+ (74% less weight). If grams matter to you, that is the one to beat.
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Spec BioLite SolarPanel 5+ Polar Grit X
Weight 250 g · 0.250 kg · 0.55 lb 64 g · 0.064 kg · 0.14 lb
Brand BioLite Polar
Category Electronics Electronics
BioLite SolarPanel 5+
250 g

5W solar panel with integrated 2200mAh battery.

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Polar Grit X
64 g

Multisport GPS smartwatch weighing 64g with wristband. Rugged design with navigation, long battery life, and military-grade durability.

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BioLite SolarPanel 5+ vs Polar Grit X: which should you buy?

If saving weight is your priority, the Polar Grit X wins — at 64 g it is 186 g (74%) lighter than the BioLite SolarPanel 5+ (250 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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