Casio has officially launched the GBX-H5600 series in Japan, marking the first G-LIDE model to include an optical heart rate monitor. This addition is notable for fans of the surf-oriented G-Shock sub-line who want more comprehensive fitness tracking. Demand has been strong, with the blue GBX-H5600-2JR variant already sold out on Casio’s official store, leaving only the black GBX-H5600-1JR available for purchase.
Lightweight Design Meets Durable Materials
The GBX-H5600 watches stand out with a semi-transparent bezel surrounding a carbon fiber reinforced resin center case. Weighing just 47 grams, the watches balance sturdiness and comfort for everyday and active wear. The display uses a high-resolution Memory In Pixel (MIP) LCD, which offers wide viewing angles and high contrast, allowing clear visibility of tide graph wave imagery — a signature feature for the G-LIDE series.
Comprehensive Fitness and Outdoor Tracking
Fitness features on the GBX-H5600 include an optical heart rate sensor capable of monitoring pulse between 30 and 220 beats per minute. It also tracks sleep quality with recovery analysis, measures blood oxygen levels, counts steps, and supports guided breathing exercises. Activity logging covers running, walking, and gym workouts, making it a versatile companion for fitness enthusiasts. The tide graph supports up to 3,300 global points when paired with a smartphone, along with sunrise, sunset, and moon phase data — useful for outdoor activities like surfing and fishing. Related coverage: Casio G-Shock Launches New Watches with Polarized Glass in US.
Connected Features and Efficient Power Use
Linking the watch to the Casio Watches app via Bluetooth unlocks additional features such as notifications, GPS distance correction, training analysis, and access to world time across roughly 300 cities. The watch charges through a hybrid system combining USB and solar power, which helps extend battery life. Users can expect about 35 hours of continuous use with heart rate monitoring active, or up to 11 months in a low-power mode. The watch also offers 20 BAR water resistance, suitable for water sports and everyday exposure.
Availability and Buying Considerations
The GBX-H5600 series is currently available only in Japan at ¥44,000 (around $277), with the blue variant already out of stock and no restock date announced. Buyers outside Japan should consider regional availability and warranty support before purchasing. The blend of durable design, fitness tracking, and solar charging makes it appealing for active users, though those expecting global release or additional color options may need to wait for official updates.
(Via)
