Our quick take
Casio WSD-F21HR - 4.0 / 5
Chunky monkey
- 61.7 x 57.7 x 16.8mm; 81 grams Waterproof to 50 metres MIL-STD-810G durability Resin bezel
Dual displays
- 1.32-inch dual display 320 x 300 TFT primary display Monochrome LCD secondary Flat tyre - not full round
Fitness tracking
- Casio Moment Setter app Heart rate monitor and GPS Manually sync with Google Calendar/Fit
Battery life, features and performance
- 1.5 days as a smartwatch, one month as mono only Up to 20 hours of GPS use Charges in 2.5 hours
To recap
Casio has built another watch that’s designed for the outdoors; for runners, hikers, paddlers and cyclists. It’s durable, has great battery life and a genuinely useful dual-layer screen.
