Casio G-Shock GBA-900 — Distance and Running Time Measurements

*GBA-900RD-4A – Updated December 2021 color!

Rating: 4.5 out of 5.
Size★★★★
Weight★★★★★
Functions★★★★
Materials★★★★★
Battery Years★★★
Price★★★★★
How did we compose this rating? Enjoy our calculations →

GBA-900 Model Range *may be updated


Quick Content Guide

  1. GBA-900 Model Range *in different colors and bands
  2. General information about the watch *year of first release, model range etc.
  3. Official GBA-900 Video *only from Casio Company
  4. G-Shock GBA-900 Display Guide *for key functions only
  5. G-Shock GBA-900 on the wrist! *only images and only on the wrist
  6. Japanese Unique Features in GBA-900 *the most distinctive features in details
  7. GBA-900 Usage Patterns *what the watch is usually meant for
  8. Feedback from Users and Experts *anonymous from different sources
  9. The most distinctive specs *from our Editorial point of view
  10. Other G-Shock GBA Watches *similar by price and functions but different by cases
  11. Official GBA-900 Specs *all details and for base version GBA-900
  12. GBA-900 Comparison Table *with similar G-Shock Watches
  13. Recent News about GBA-900 *the latest breaking news and videos

About the Watch in short. The new GBA-900 is an evolution and improvement of the successful G-Squad 800 series, designed and intended for basic sports activities (runners, jogging and other types of daily exercise), but now – with the new GBA900- series, it is already connected to the APP G-SHOCK MOVE technique, and incorporates a highly precise distance sensor: it is a watch, with ‘steep tracker’ (accelerometer) for any active lifestyle -and sports -… a basic that also surprises for its spectacular and accomplished aesthetics, inheriting the best of the accumulated experience in sports watches.



General Information

Price$185 *average Amazon Price, we may earn commission from purchases
Year of first Release2021
Suitable for Wrist Size145 – 220 mm
Module Number5641 / Manual
Model RangeG-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 TypeCR2025 (G-Shock Batteries)
Other Divisions the GBA-900 belongs to: *you may find all watches of the division by clicking on the linkG-Shock 2021
G-Shock Bluetooth
G-Shock Ana-Digi
G-Shock StepCount

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Official G-Shock GBA-900 Video

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G-Shock GBA-900 Display Guide *for key functions only. For you to know how it works))

Timekeeping Mode

In this mode, your watch shows the current day of the week, hour, minute, second, month and day.

Recall Mode

You can use this mode to view split and lap time records.
1. Measurement month, day
2. Measurement start time
3. Total distance
4. Total time

Timer Mode

Use this mode to countdown from a desired start time.
1. Remaining timer time
2. Timer minutes, seconds
3. Timer number

Dual Time Mode

Dual Time lets you keep track of another time besides your current location.
1. Current time seconds
2. Current location time
3. Dual Time

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G-Shock GBA-900 on the wrist!

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Enjoy Japanese Unique Features in GBA-900!

*some images are about G-Shock 5000/5600 cases, but the technology, approaches, concepts and philosophy remains the same for the whole G-Shock Model Range

Hollow case structure. Based on a realization that “shocks are not transmitted inside a bouncing rubber ball,” the structure was designed to let the module float inside the case, relieving shocks transmitted from outside. Today, the module’s shock resistance is realized through further technical innovations. But the revolutionary tough structure that gave G-SHOCK its origin began here.

All-directional covering. If the watch is dropped, the protruding bezel fully enclosing it absorbs the shock, protecting the buttons directly connected to the module and alleviating shocks from all directions. The bezel also guards the surface of the crystal. The band is curved stiffly at the point of connection with the case, moreover, enabling it to serve as a shock absorber and prevent direct shocks to the back of the case.

Protective cushioning of key parts. The crystal oscillator and other critical parts inside the module are guarded individually by cushioning material. Any strong shock to the watch causes immediate distortion of the cushioning inside the module, preventing contact failure and malfunction.

Japan Quality. Constructed with genuine quality, CASIO products provide truly practicable applications in which functionality and beauty combine. The leading-edge LSI technologies and skilled craftsmanship that give life to CASIO watches exemplify the quality Japan boasts in the world marketplace.
For CASIO, “faith in manufacturing” refers to an inexorable advancement of digital technologies and an uncompromising commitment to fine craftsmanship. This faith engenders unparalleled performance that not only elevates CASIO watches as close as possible to perfection, but that actually changes their wearers’ lifestyles.

G-SHOCK MOVE App. This is the basic application for connecting and communicating with a Bluetooth(R) v4.0 enabled G-SHOCK. Pairing the watch with your smartphone enables use of a variety of different Mobile Link functions that greatly enhance the smartphone experience. The G-SHOCK MOVE app also simplifies certain watch operations by letting you perform them on your phone screen.



GBA-900 Usage Patterns *what the watch is usually meant for

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Feedback from Users *accumulated information from our own comments and emails, forum threads, socials, reviews, etc.

PROs
+ affordable pre entry fitness watch
+ it’s a step tracker one and it works well with the iPhone
+ looks very nice

CONs
– one of the WORST negative displays
– no heart rate sensor
– no solar, battery life 3 years?
– the light sometimes only goes on if you press the light button several times

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What we like in GBA-900 *comments by experts with 10 years experience in writing about Casio watches
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)
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)
GPS but with your Phone Connection (you can control your distance but with your phone GPS technology)
Very comfortble (only 61 grams and 51.3 x 48.9 x 16.6mm)

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Other G-Shock GBA Watches *similar by price and functions but different by cases


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Official GBA-900 Specs / Features *for base version GBA-900-1A

  • Case / bezel material: Resin
  • Resin Band
  • Shock Resistant
  • Mineral Glass
  • 200-meter water resistance
  • Double LED light
    LED light for the face (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
    LED backlight for the digital display (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
  • Mobile link (Automatic connection, wireless linking using Bluetooth®)
  • Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents)
  • Lifelog calculation function (Calorie and distance calculations based on step count), Including basal metabolic rate Daily data display: Step count, calorie, distance
  • User profile creation
  • Airplane mode
  • Dual time (Home city time swapping)
  • 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)
    Measuring modes: lap/split timing, distance/pace display, auto/manual lap timing auto lap notification
    Memory capacity: Up to latest 45 records (measurement start month, date, hour, minute, lap/split times, total time, distance, average pace, calories burned, lap number, time, distance, average pace of each lap/split)
  • 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, 5-second countdown auto start, repeat (1 to 20 times)
  • 5 daily alarms
  • Hourly time signal
  • Low battery alert
  • Power Saving
  • Full auto-calendar (to year 2099)
  • 12/24-hour format
  • Button operation tone 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 CR2025
  • Size of case : 51.3 x 48.9 x 16.6mm
  • Total weight : 61g

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GBA-900 Comparison Table with similar G-Shock Watches

GBA-900

Price (Amazon)

Year of first Release

2021

2018

Accuracy

Bluetooth (via phone app)

Bluetooth (via phone app)

SmartWatch Features

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

No

Step Count

Yes

Yes

GPS (for distance and speed monitor)

Yes (but with your Phone Connection )

No

USB Charging

No

No

Light

Double LED light (Auto LED light, Super illuminator, afterglow)

Neobrite (hands and hour markers) Double LED light

Alarm

5 alarms

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, 5-second countdown auto start, repeat (1 to 20 times)

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

1/100-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)
Measuring modes: lap/split timing, distance/pace display, auto/manual lap timing auto lap notification
Memory capacity: Up to latest 45 records (measurement start month, date, hour, minute, lap/split times, total time, distance, average pace, calories burned, lap number, time, distance, average pace of each lap/split)

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, lap/split times)
Target Time alarm up to 10 Target Time settings

Hourly Time Signal

Yes

Yes

World Time

No

for approximately 300 cities

Altimeter

No

No

Barometer

No

No

Compass

No

No

Multi Timer

No

No

Thermometer

No

No

Vibration

No

No

Case / bezel material

Resin

Resin

Glass

Mineral Glass

Mineral Glass

Battery

2 years on CR2025

2 years on CR2016

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

51.3x48.9x16.6

54.1×48.6×15.5


Full features (if you want to know more)

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Recent News about GBA-900 *on casiofanmag.com

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You ask, we answer…

How does GPS with your Phone Connection in GBA-900 work?

You can control your distance but with your phone GPS technology.

What is Step Count in GBA-900?

It is an 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.

What does G-SHOCK Move App in GBA-900 do?

It increases motivation by managing measurement data and training history with the app, which automatically creates training plans tailored to set targets.


Not sure about GBA-900? There are more G-Shocks!

Back to All G-Shock Models →