Casio Pro Trek PRG-300 vs Goal Zero Nomad 20 Solar Panel
Weight and specs compared for 2026 — and which one to choose.
Lightweight outdoor GPS smartwatch with triple sensors, barometric pressure, and Tough Solar charging. Compact 56×47×12.6mm design.
Full details →Portable 20-watt foldable solar panel at 1.03kg with integrated 8mm cable and USB port, charges phones, batteries and small devices on trail.
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Casio Pro Trek PRG-300 vs Goal Zero Nomad 20 Solar Panel: which should you buy?
If saving weight is your priority, the Casio Pro Trek PRG-300 wins — at 57 g it is 973 g (94%) lighter than the Goal Zero Nomad 20 Solar Panel (1,030 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.