Comparison of Casio G-Shock Rangeman GW-9400, Rangeman GPR-B1000 (GPS), and Gulfmaster GWN-Q1000
Casio’s GW-9400 Rangeman launched in 2013 with Triple Sensor Ver.3, 200 m water resistance, and solar charging, and remains in production in some regions. The GPR-B1000 Rangeman added standalone GPS, Bluetooth, and wireless charging in 2018 but was discontinued by 2025. The GWN-Q1000 Gulfmaster, released in 2016 with a depth gauge and Tough Movement, is also discontinued. The GPR-H1000 successor debuted in 2024 with heart-rate and pulse oximeter sensors.
