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These G-SHOCK G-SQUAD GBD-H1000 Series models pack heart rate measurement and GPS capabilities into a choice of black or white designs made of semitransparent resin. The result is powerfully vibrant timepieces that look great no matter where they are worn.
Useful workout functions include an optical sensor for heart rate measurement, along with bearing, altitude/barometric pressure, and temperature sensors, and an accelerometer for step counting. These five sensors help to keep you in close touch with your current activity in real-time. The ability to receive GPS signals lets you access location information when you need it. When used in combination with the stopwatch, you can keep track of running information like distance, speed, pace, and more. The watch uses your heart rate and speed data to calculate a VO2max value, which is an indicator of your cardio-pulmonary capacity. This measurement is useful when trying to increase stamina for running and other activities. A phone app is available to help you configure watch settings and manage your training data.
You can monitor your current fitness level and training progress, and even automatically create a training plan based on targets specified by you. VO2max calculation and other data analysis capabilities use a library by FIRSTBEAT, a renowned sports science company.
Algorithms of improved accuracy support a higher level of training. The surface form of the back covers of these models reduces interference with the back of the hand, while a soft urethane band provides a better fit to the wrist. Bi-color molded buttons are designed for ease of use, while a high-definition MIP LCD makes display information more legible. Both USB and solar charging are supported, and solar charging can be used to power daily operations (except for pulse monitoring and GPS). Both of these models provide renowned G-SHOCK toughness along with new outdoor functions.

FIRSTBEAT
The watch uses an algorithm from FIRSTBEAT Technologies, a company with a reputation for advanced fitness data analysis. Highly accurate data analysis helps you get the most out of your training sessions.

Items measured using the FIRSTBEAT algorithm

• VO2max (fitness level)
• Training status
• Training load
• Recovery time
• Training effect
• Training plan
• Calories burned during training

From the MASTER OF G Series MUDMASTER, the watch that is designed and engineered to withstand rough land environments, come carbon resin models that incorporate a new type of structure.
The case is made of high-rigidity carbon material to protect against damage and deformation due to impact and other rough treatment, while metal button pipes ensure a tighter seal against the external environment. A filter further protects against the invasion of mud, for the high level of dust and mud resistance required when in severe environments. In addition, the dual back cover consists of a stainless steel panel back and an outer cover made of shock resistant fine resin embedded with glass fibers.
The bezel is formed of three layers of fine resin with carbon fiber inserts. The top layer is transparent, resulting in a bezel that shows the embedded carbon material.
Quad Sensor capabilities use compact sensors that make it possible to pack compass, altitude/barometer, and temperature measurements, along with an accelerometer that keeps track of your step count, into a compact configuration. This provides the outdoor adventurer with the means to keep track of the surrounding environment while on the go.
A special G-SHOCK app, which simplifies configuration of watch settings, also includes a new Mission Function. The app automatically records altitude data measured by the watch and route information acquired by a smartphone’s GPS. Manually obtained altitude points can be plotted on your route.
Altitude measurement and the step count are used to perform consumed calorie calculations that take up and down grades into consideration, and to record the results in an activity log.
A watch button operation can be used to record your current location with the app. Then the second hand indicates the bearing to the recorded location, while the digital display shows the distance to the location.
These new models also support Mode Switching Customization.
You can use the app to enable or disable modes individually so only enabled modes appear. You can even specify the sequence to be used when displaying the modes.
Mud resist structure (dust-resistant, mud-resistant)
Quad sensor (Thermometer, Altimeter/Barometer, Digital Compass, Step Counter)
Super Illuminator auto double LED light for face and digital display illumination