Casio Pro Trek WSD-F30 Series

Excellent mapping and GPS ; One of the most robust smartwatches ; Innovative dual-layer display

Battery life could be better ; No NFC or heart rate monitoring ; Will be too chunky for some

Clever two-layer screen ; Smart hiker software features ; Tough casing

Poorly designed charger ; Slow charging ; No heart rate monitor or NFC

The Casio Pro Trek WSD F30 has a much better design than its predecessor, but the combination of hiking and Wear OS is still an awkward one.

Solid and durable build ; Always-visible time ; Lots of sensor data for hiking/outdoor sports ; Good battery life

No heart-rate sensor ; No companion app for activity syncing/viewing ; Charging plug and port disconnect easily

Casio's third-gen dual-screen outdoors watch caters for a specific market well, but its dual-screen USP is no longer unique, while strong competition and lack of heart-rate sensor limit its overall appeal.

Tougher than a brigadier’s boots ; Packs GPS and plenty of sensors ; Dual-layer display works deftly

Interface can be idiosyncratic ; Battery life is only average ; Still no home for activity history ; Magnetic charger disconnects easily

Big, bold and built to go the distance, Casio’s sturdy smartwatch has all the tools to make it great but needs software tweaks reach the summit

A very different-looking sporty design; Ruggedized construction makes it feel solid; Dual-layer screen offers exception visibility in direct sunlight; Precise GPS; Above average battery life

It’s really expensive; Chunky size isn’t for everyone; Lacks heart rate sensor