| Size | ★★★ |
| Weight | ★★★★ |
| Functions | ★★★★ |
| Materials | ★★★★★ |
| Battery Years | ★★ |
| Price | ★★★★ |
GBD-100 Model Range *may be updated
*Want to be the first to know about new G-Shock Updates? Here we store all recent Monthly G-Shock Updates →
Quick Content Guide
- GBD-100 Model Range *in different colors and bands
- Japanese approaches to Tough and Functional Watches in GBD-100! *the most distinctive features in details
- General information about the watch *year of first release, model range etc.
- Official GBD-100 Video *only from Casio Company
- G-Shock GBD-100 Display Guide *for key functions only
- G-Shock GBD-100 on the wrist! *only images and only on the wrist
- GBD-100 Usage Patterns *what the watch is usually meant for
- The most distinctive specs *from our Editorial point of view
- Other G-Shock GBD Watches *similar by price and functions but different by cases
- Official GBD-100 Specs *all details and for base version GBD-100-1
- G-Shock GBD-100 PROs & CONs *by experts with 10 years experience
- GBD-100 Comparison Table *with similar G-Shock Watches
- Full Photo Gallery *various images
- Recent News about GBD-100 *the latest breaking news and videos
About the Watch in short. Casio sports watches go to the next level. Yes, this is not a complete set of features like the flagship GBD-H1000, but the GBD-100 has something to boast about [except for the price]. Not all runners need a heart rate monitor with its specific capabilities, in fact, someone will just need a regular pedometer, interval timer and Bluetooth for convenient visualization of activity results – the GBD-100 has all this. Pleased with the presence of the same digital display MIP – electronic panel “pixel” type with high contrast. In practice, this type of display contains more information [indicators, charts] and can display not only the data that has been pre-programmed for it [speech about notifications from a smartphone]. Yes, there are also notifications [incoming calls, SMS, e-mail, calendar, reminder] and this is very cool, in our opinion. The vibro function is also present.
G-SHOCK G-SQUAD Evolution Timeline
May, 2023
DW-H5600
300$ on Amazon →
★★★★★
First Square G-SHOCK with Optical Heart Rate Sensor and Smart Sport Functions
More →
May, 2020
GBD-100
180$ on Amazon →
★★★★
Smartphone link with accelerometer improves the accuracy of distance measurements.
More →
May, 2020
GBD-H1000
500$ on Amazon →
★★★★★
First G-SQUAD watch with shock-resistant structure, Heart Rate Monitor and GPS Function for Route Displaying
More →
Enjoy Japanese Unique Features in GBD-100!
Distance Measurement Function. Smartphone GPS function adjusts distance measured by the accelerometer for more accurate* distance measurement. After adjustment, it is possible to measure distance using only the watch.
Running Measurements. Enables not only stopwatch measurements, but also distance, speed, pace, and calorie consumption measurements. Auto lap measurement also supported.
Step Tracker. Counts steps automatically from start of walking.
Interval Timer. The multi-timer can be set to up to five different time settings.
Case Back Cover. Fine resin case back cover with glass fibers. Curved surface shape relieves interference to wrist.
Button Design. Large buttons and side buttons with slip-resistant shapes for easy operability.
MIP LCD (Memory in pixel LCD). Displays various detailed measurement data in high contrast for easy viewing. Items displayed when training can be customized for ease of use.
Vibration Notification Function. Vibrates to alert wearer of indicating time elapsed and calories burned during training, as well as to indicate receipt of Bluetooth®-connected smartphone calls, emails, and SNS messages.
Soft Urethane Band. Many holes in band improve ventilation and make fine adjustments when wearing the watch easy to perform.
Super Illuminator. High-brightness LED lights up the LCD with high-intensity light, maintaining watch readability in the dark.
Smartphone App. An easy-to-use app allows you to manage everything about your training, from creating a training plan to checking your records and results.
– Target attainment level
– Training history
– Training plan
G-SHOCK MOVE for WEB. View your tracked measurements in a browser. Sync your data to show in apps from other companies.
General Information
| Price | $140 *average Amazon Price, we may earn commission from purchases |
| Year of first Release | 2020 |
| Suitable for Wrist Size | 160 – 230 mm |
| Module Number | 3481 / Manual |
| Model Range | G-SQUAD (A new sports line that supports your active life by managing your daily exercise using your watch and smartphone. All watches are equipped with health and fitness support functions, include a 3-axis accelerometer that keeps track of step count, a Multi-Timer that lets you create up to 20 timer combinations of five timers each, memory for up to 200 lap records, and with the help of the phone app, a calorie-use counter. Ideal for interval training for running, gym activities and other sports.) |
| Battery Type | CR2032 (G-Shock Batteries) Buy Battery on Amazon → |
| Other Divisions the GBD-100 belongs to: *you may find all watches of the division by clicking on the link | G-Shock Digital G-Shock StepCount G-Shock Bluetooth |
Official GBD-100 Video
G-Shock GBD-100 Display Guide *for key functions only. For you to know how it works))
General Display
A button
Pressing this button in any mode cycles between displays.
B button
Press to turn on illumination.
C button
In the Timekeeping Mode, pressing this button enters the Training Mode.
D button
Hold down this button for at least one second to return to the Timekeeping Mode.
E button
In other modes, pressing this button returns to the Timekeeping Mode.
Training Mode
Use this mode to measure and record distance, elapsed time, pace, and other running data.
Training Log Mode
Use this mode to view recorded training log data.
Notification Mode
The Notification Mode receives incoming call, mail, and SNS notifications and information.
G-Shock GBD-100 on the wrist!
GBD-100 Usage Patterns *what the watch is usually meant for
G-SHOCK GBD-100 PROs & CONs
*we composed all points based on our ten years experience in writing about CASIO watches. We know what matters when you are searching for your ideal G-SHOCK!
– Step Counter (low power consumption, counts calories burnt)
– Easy pairing with smartphone by the G-SHOCK MOVE App
– Soft polyurethane strap with ventilation
– Customizable training watch face
– Multiple color options available
– Lightweight design (weighing only 69 grams)
– Useful vibration alarm function
– Affordable price for fitness watch
– Does not connect with Strava and other popular running apps
– Small text for messages or alerts on the screen
– Limited capability as a smartwatch (Lack of touchscreen and body sensors)
– No built-in GPS
– No optical heart rate sensor
– No Solar Power
– No hourly time signal
What we like in GBD-100 *comments by experts with 10 years experience in writing about Casio watches
— 200-meter water resistance (good for swimming but not for deep diving)
— Step Count (3-axis accelerometer detects body movements and measures step count and distance travelled. Also interpolates distance measurements in environments where GPS measurement is unavailable)
— G-SHOCK Move App (Increase motivation by managing measurement data and training history with the app, which automatically creates training plans tailored to set targets)
— Mobile link (Wireless linking using Bluetooth(R)) (for time sync with your phone data)
— Notification Mode (Displays Bluetooth®-connected smartphone call, email, and SNS message receipt notifications for ease of checking even while exercising)
— Training Function (Display of distance, speed, pace, and other calculated values based on accelerometer, auto/manual lap times, Auto Pause, target alert setting (time, calories burned) on/off, training display customization (elapsed time, distance, pace, lap time, lap distance, lap pace, average pace, speed, average speed, calories burned))
Other G-Shock GBD Watches *similar by price and functions but different by cases
Official Casio Description. These are the latest additions to the G-SQUAD lineup of sports watches from G-SHOCK, now with Bluetooth® capabilities that allow continuous connection with a smartphone.
These watches can link with the GPS of a smartphone for quicker calibration of distance measurements, enabling more accurate running distance measurements, even during use without a phone connection.
Distance measurements used in combination with the stopwatch let you keep track of your running 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. Also, 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.
Official GBD-100 Specs / Features *for base version GBD-100-1
- Case / bezel material: Resin / Aluminum
- Resin Band
- Shock Resistant
- Mineral Glass
- 200-meter water resistance
- LED backlight (Super illuminator)
Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow - Mobile link (Wireless linking using Bluetooth®)
- Training Function
Display of distance, speed, pace, and other calculated values based on accelerometer, auto/manual lap times, Auto Pause, target alert setting (time, calories burned) on/off, training display customization (elapsed time, distance, pace, lap time, lap distance, lap pace, average pace, speed, average speed, calories burned) - Training Data (Up to 100 runs, up to 140 lap times per run)
Elapsed time, distance, pace, calories burned - Life Log Data
Daily data display (step count), Monthly data display (running distance) - User profile creation
- Flight mode
- World time
38 time zones* (38 cities + coordinated universal time), daylight saving on/off, auto summer time (DST) switching
* May be updated when connected to a smartphone. - 1-second stopwatch
Measuring capacity: 99:59’59”
Measuring modes: Elapsed time, split time - Countdown timer
Timer for interval measurement (up to five time settings)
Measuring unit: 1 second
Input range: 00’00” to 60’00” (1-second increments)
Others: Auto-repeat (number of repeats settable from 1 to 20) - Vibrator
- 4 daily alarms with snooze
- Power Saving (Display goes blank to save power 3 hours everyday.)
- Full auto-calendar (to year 2099)
- 12/24-hour format
- Button operation tone on/off
- Vibration on/off
- Regular timekeeping: Hour, minute, second, am, pm, month, date, day
- Accuracy: ±15 seconds per month (with no mobile link function)
- Approx. battery life: 2 years on CR2032
- Size of case : 58.2×49.3×17mm
- Total weight : 69g
GBD-100 Comparison Table with similar G-Shock Watches
GBD-100 | |||
Price (Amazon) | |||
Year of first Release | 2020 | 2020 | 2020 |
Accuracy | Bluetooth (via phone app) | Bluetooth (via phone app), GPS Signal Reception | Bluetooth (via phone app) |
SmartWatch Features | G-SHOCK MOVE App | G-SHOCK MOVE App | G-Shock Connected App (simplifies certain watch operations by letting you perform them on your phone screen) |
Optical sensor (for Heart Rate) | No | Wrist heart rate measurement (maximum measurement value: 220 bpm) | No |
Step Count | Yes | Yes | Yes |
GPS (for distance and speed monitor) | No | GPS Functionality (Acquires data of current location from GPS satellite, measures distance travelled, speed, pace, and other data. In addition to GPS, the watch acquires data from GLONASS and Michibiki (QZSS) satellite systems) | No |
USB Charging | No | Yes (After about 2.5 hours of charging, training features can be used continuously for up to 14 hours) | No |
Light | LED backlight (Super illuminator) | LED backlight (Super illuminator) | LED backlight (Super illuminator) |
Alarm | 4 daily alarms with snooze | 4 daily alarms with snooze | 5 daily alarms |
Timer | Timer for interval measurement (up to five time settings) | Timer for interval measurement (up to five time settings) | Timer for interval measurement (up to five time settings) |
Stopwatch | 1-second stopwatch | 1-second stopwatch | 1/100-second stopwatch |
Hourly Time Signal | No | No | Yes |
World Time | 38 time zones* (38 cities + coordinated universal time), daylight saving on/off, auto summer time (DST) switching | 38 time zones* (38 cities + coordinated universal time), daylight saving on/off, auto summer time (DST) switching | for approximately 300 cities |
Altimeter | No | Yes | No |
Barometer | No | Yes | No |
Compass | No | Yes | No |
Multi Timer | No | Yes | No |
Thermometer | No | Yes | No |
Vibration | Yes | Yes | No |
World Time | Yes | Yes | No |
Case / bezel material | Resin / Aluminum | Resin / Stainless steel | Resin |
Glass | Mineral Glass | Mineral glass | Mineral glass |
Battery | 2 years on CR2032 | Solar powered | 3 years on CR2025 |
Size (mm) *we consider 48.9×42.8×13.4 to be a traditional watch size (as in DW-5600). So you are to compare how far or close the watch is to this size | 58.2×49.3×17 | 63×55×20.4 | 50.7×45.2×15.5 |
Full features (if you want to know more) |
Recent News about GBD-100
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You ask, we answer…
It increases motivation by managing measurement data and training history with the app, which automatically creates training plans tailored to set targets
It is a 3-axis accelerometer that detects body movements and measures step count and distance travelled. Also interpolates distance measurements in environments where GPS measurement is unavailable)
It Displays Bluetooth®-connected smartphone call, email, and SNS message receipt notifications for ease of checking even while exercising.
Display of distance, speed, pace, and other calculated values based on accelerometer, auto/manual lap times, Auto Pause, target alert setting (time, calories burned) on/off, training display customization (elapsed time, distance, pace, lap time, lap distance, lap pace, average pace, speed, average speed, calories burned).
Not sure about GBD-100? There are more G-Shocks!
