[G-Shock Comparison] GBD-100 VS GBD-H1000 VS GMD-B800

GBD-100

GBD-H1000

GMD-B800

Price (Amazon)

140$

400$

100$

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)
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)

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)

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), auto-start

Stopwatch

1-second stopwatch
Measuring capacity: 99:59'59''
Measuring modes: Elapsed time, split time

1-second stopwatch
Measuring capacity: 99:59'59''
Measuring modes: Elapsed time, split time

1/100-second stopwatch
Measuring capacity:
00'00''00~59'59''99 (for the first 60 minutes)
1:00’00~23:59’59 (after 60 minutes)
Measuring unit:
1/100 second (for the first 60 minutes)
1 second (after 60 minutes)
Recorded data: Up to 200 records (measurement start month, date, hour, minute, lap/split times)
Target Time alarm up to 10 Target Time settings

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
* May be updated when connected to a smartphone.

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

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

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)

GBD-100 Wiki

GMD-B800 Wiki