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These are the latest additions to the G-SQUAD lineup of sports watches from G-SHOCK, which are equipped with heart rate monitor and GPS.
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..

Introducing new colors for the G-SHOCK lineup of GBD-100 sports watches. Black and white base coloring is combined with vivid light collecting resin and semitransparent resin for a dazzling design that contributes to the enjoyment of a wide range of activities.
Function-wise, these models employ Bluetooth? technology to allow access to a smartphone?s GPS for quicker calibration of distance measurements. Once calibration is done, the watch is able to perform more accurate running distance measurements, even when it is no longer connected to the phone.
Distance measurements used in combination with run time measurements let you keep track of your pace, and also enable use of an Auto Lap feature that automatically keeps track of times over a specific distance. Other standard features include a step tracker (pedometer), interval timers (up to 20 sets of five timers each), lap time measurement (up to 140 records for up to 100 runs), and calories burned measurement, all of which provide plenty of support for your daily training. In addition, new phone apps are now available to help you configure watch settings more easily and manage your workouts. In addition to Life Log and Activity History apps, you can automatically create a training plan based on targets specified by you.
The displays of these watches use a high-definition MIP LCD. Super Illuminator face illumination keeps face information easy to read, even in the dark. The soft urethane band material provides improved comfort, while a large number of band holes let you adjust the fit to your particular wrist. These watches connect with your phone via Bluetooth? to support auto time adjustment, phone notifications, step tracking, and other functions throughout the day. Battery life is approximately two years between replacements.

Introducing new Utility Color additions to GA-2100 thin, analog-digital combination line up from G-SHOCK, the watch brand that is constantly setting new standards for unmatched timekeeping toughness.
These new models combine practical and utilitarian colors of the bezels, faces, and bands that go well with street fashions, to create distinctive looks that fit right in with a wide range of fashions and activities. The new dual-layer molded bezel cover of the GA-2110SU model create great looking new designs.
These new G-SHOCK models combine thin cases with new designs.

Carbon Core Guard Structure
A new carbon core guard structure protects the module by enclosing it in a carbon case. The case is made of fine resin embedded with carbon fibers for outstanding strength, crack resistance, and durability.