Casio Pro Trek PRG-340 vs DeLorme inReach SE+

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

Casio Pro Trek PRG-340 is the lighter option — 121 g lighter than the DeLorme inReach SE+ (65% less weight). If grams matter to you, that is the one to beat.

Spec	Casio Pro Trek PRG-340	DeLorme inReach SE+
Weight	66 g · 0.066 kg · 0.15 lb	187 g · 0.187 kg · 0.41 lb
Brand	Casio	DeLorme
Category	Electronics	Electronics

Casio Pro Trek PRG-340

66 g

Solar-powered outdoor watch with triple sensor.

Full details →

DeLorme inReach SE+

187 g

Two-way satellite communicator with topographic maps.

Full details →

Casio Pro Trek PRG-340 vs DeLorme inReach SE+: which should you buy?

If saving weight is your priority, the Casio Pro Trek PRG-340 wins — at 66 g it is 121 g (65%) lighter than the DeLorme inReach SE+ (187 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

Casio Pro Trek PRG-340 vs Garmin Xero C1 Pro Chronograph Casio Pro Trek PRG-340 vs Suunto Core All Black Casio Pro Trek PRG-340 vs Anker PowerCore 5000 Casio Pro Trek PRG-340 vs Goal Zero Nomad 5 Casio Pro Trek PRG-340 vs Nitecore NB10000 Gen 2 Casio Pro Trek PRG-340 vs Anker PowerCore 10000