← Gear database

BioLite SolarPanel 5+ vs Casio Pro Trek PRG-340

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

Casio Pro Trek PRG-340 is the lighter option — 184 g lighter than the BioLite SolarPanel 5+ (74% less weight). If grams matter to you, that is the one to beat.
shopping_cart Check today's price on Amazon
Spec BioLite SolarPanel 5+ Casio Pro Trek PRG-340
Weight 250 g · 0.250 kg · 0.55 lb 66 g · 0.066 kg · 0.15 lb
Brand BioLite Casio
Category Electronics Electronics
BioLite SolarPanel 5+
250 g

5W solar panel with integrated 2200mAh battery.

Full details →
Casio Pro Trek PRG-340
66 g

Solar-powered outdoor watch with triple sensor.

Full details →

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

BioLite SolarPanel 5+ vs Casio Pro Trek PRG-340: which should you buy?

If saving weight is your priority, the Casio Pro Trek PRG-340 wins — at 66 g it is 184 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.

More electronics comparisons

BioLite SolarPanel 5+ vs Garmin Instinct 3 Solar 45mm BioLite SolarPanel 5+ vs Coros Apex 4 (42mm with silicone strap) BioLite SolarPanel 5+ vs Coros APEX 4 (42mm) BioLite SolarPanel 5+ vs Garmin Xero C1 Pro Chronograph BioLite SolarPanel 5+ vs Garmin Fenix 8 AMOLED 43mm BioLite SolarPanel 5+ vs Polar Grit X