The watch is equipped with energy-saving Bluetooth® technology, which offers power-saving data transfer at the push of a button. The watch can connect to a smartphone wirelessly via Bluetooth®, enabling access to a wide range of useful functions.
Auto-LED light
A light-emitting diode (LED) is used to illuminate the watch face, incl. the feature of an Auto Light Switch that illuminates the display when the watch is angled towards the face.
Shock-resistant
Shock-resistant construction protects against impact and vibration.
Acceleration sensor
The motion sensor responds to acceleration and shows this as a speed on the display. The sensor also supports the auto rotation function of the watch, ensuring that the image is always displayed the right way up on the display.
World time function
Displays the current time in major cities and specific areas around the world.
Stopwatch function - 1/100 sec. - 100 hours
Elapsed time, split time and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 100 hours.
Lap memory 100
Measured total, lap and split times can be stored in a memory with the date and can be displayed again later. A data set consists of: date, total, lap and split times. The memory has enough space for up to 100 data sets.
4 daily alarms
The daily alarm reminds you about recurring events with an acoustic signal at the time you have set. You can also activate a signal that indicates each full hour. This model has four independent alarms for flexible reminders of important appointments.
Snooze feature
Each time you stop the alarm, it sounds again after a few minutes.
Vibration alert
The vibration alarm discreetly reminds you of important appointments, without emitting a loud signal.
Button tones on/off
The button tones for using the mode button can be turned off. This means that the watch no longer beeps when switching from one function to another. Preset alarm or countdown timers remain active when the button tones are deactivated.
Phone Finder
Misplaced your smartphone? All it takes is the push of a button on your watch and the smartphone sounds an alarm.
Airplane Mode (Offline Mode)
At the touch of a button, the watch switches to offline mode. This means that you can disable the wireless or GPS receiver when in the air for the duration of the flight.
Automatic calendar with Date, Day and Month
Once set, the automatic calendar always displays the correct date.
12/24-hour timekeeping
Times can be displayed in either a 12-hour or 24-hour format.
Mineral glass
The tough mineral glass resists damages.
Resin case
The case of the watch is light and durable.
Resin band
Synthetic resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties.
Folding clasp
The watch has a folding clasp.
2 Years - 1 Battery
The battery supplies the watch with sufficient energy for approx. two years.
Water resistance classification (20 bar)
Perfect for free diving without scuba gear: the watch is water resistant up to 20 bar according to ISO 22810.
What’s in the box?
3 Year Warranty
User Manual
Original box
Reviews about G-SHOCK G-Squad Bluetooth Sync Step Tracker GBD-100-1ER (13)
This watch is a blast! I was looking for something that could withstand intense workouts, and the GBD-100 is perfect for the job. The biggest advantage for me is the MIP display—it’s incredibly easy to read even in bright sunlight, which makes a huge difference when running. The Step Tracker feature motivates you to get moving, and the Bluetooth connection to the Casio app lets you quickly review your workout history without any hassle. A solid piece of gear that isn’t afraid of mud or rain.
pew-pew
2/20/26
100%
I bought this model mainly for workouts, and I have to admit that this version of the G-Squad really gets the job done. The biggest plus for me is the display’s readability—even in direct sunlight, everything is perfectly visible, which can be a problem with other smartwatches. Bluetooth connects to the app without any glitches, so checking your step count or setting intervals on your phone is much more convenient than tapping everything on the watch face. The watch is quite large, but thanks to the strap’s design, it stays securely on your wrist and doesn’t bounce around while running. It’s a typical piece of gear for special tasks that you shouldn’t skimp on, and at the same time, it simply looks good with sporty outfits.
Prezes
1/24/26
100%
The product matches the description.
MarcineczekZ
12/21/25
100%
Great service, fast turnaround.
123celina
12/20/25
100%
Reliable shipping.
Adam LG.
12/12/25
100%
Excellent service, fast turnaround.
Eliot Capone
12/9/25
100%
I received this watch as a gift. It has a reliable Japanese quartz movement, which gives me confidence in it. The product is comfortable and durable. I'm very happy with my choice.
rypko
10/31/25
100%
Great quality, fast turnaround.
Werka V.
4/14/21
100%
GREAT, GREAT ... GREAT. This is another purchase in this store and certainly not the last. Everything at the highest level. Professional approach to the client. Nice, competent service. Professional advice. Low prices. Other stores should learn from them because they have something. Watch as described. It looks even prettier live. GBD-100-1ER Sweat, it meets my expectations in 100%. With a clear conscience, I can confidently recommend the clockownia.pl store. You will not be disappointed.
Marcin Kruk
4/14/21
100%
AWESOME, AWESOME...GREAT. This is yet another purchase from this store, and certainly not the last. Everything is top-notch. Professional customer service. Extremely friendly, knowledgeable staff. Expert advice. Low prices. Other stores should learn from them, because they have a lot to offer. The watch matches the description. It looks even nicer in person. The GBD-100-1ER is amazing; it meets my expectations 100%. I can confidently recommend zegarownia.pl with a clear conscience. You won’t be disappointed.
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The administrator of your personal data is the owner of the Watchard store, i.e. 57 Concepts Sp. z o.o. Sp. k. with the registered office at al. Witosa 31, lok. 115, 00-710 Warsaw, Poland. Providing personal data by the Customer is voluntary but necessary to complete the purchase. You have the right to view your personal data we have processed, as well as the right to request changes or removal of your personal data. Personal data will be processed for a period of 10 years.
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The administrator of your personal data is the owner of the Watchard store, i.e. 57 Concepts Sp. z o.o. Sp. k. with the registered office at al. Witosa 31, lok. 115, 00-710 Warsaw, Poland. Providing personal data by the Customer is voluntary but necessary to complete the purchase. You have the right to view your personal data we have processed, as well as the right to request changes or removal of your personal data. Personal data will be processed for a period of 10 years.
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