G-SHOCK GA-B2100-1A
G-Shock GA-B2100-1A Angle
G-Shock GA-B2100 Case Back

G-SHOCK GA-B2100

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8.3
Expert ScoreRead review

The G-Shock GA-B2100 is an upgraded version of the bestselling 2100 octagonal model with Tough Solar power and Bluetooth mobile link. By linking with a smartphone, the Bluetooth functions offer automatic time adjustment, a time place log, date reminders, world time with approximately 300 cities, auto summer time (DST) switching, timer and alarm settings, and phone finder.

 

Bluetooth

$150.00

Categories: , , , Tags: , ,

List Price: $150 (GAB2100-1A)

Size: Medium
Dimensions (L x W x H): 48.5 x 45.4 x 11.9 mm
Weight: 52 grams
Module: 5689 (instruction manual at casio.com)
Battery Type (Lifespan): Solar Rechargeable
Series Launch Year: 2022
Nickname: Solar CasiOak

Notable Features: Tough Solar, Bluetooth Mobile Link, World Time, 1/100-Second Stopwatch, Timer, 5 Daily Alarms, Double LED Light

See full specifications for GAB2100-1A under “Additional information” tab above.

Suggested Uses: Military, Outdoors, Streetwear

Latest GA-B2100 News

Recent GA-B2100 Releases:

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View all GA-B2100 articles on G-Central

8.3Expert Score
G-Shock GA-B2100 Rating by G-Central
The GA-B2100 offers major upgrades (solar power, Bluetooth smartphone link) over the GA-2100 for a reasonable price.
Build
8.5
Functions
8
Value
8.5
PROS
  • One of the few analog-digital resin models with solar power.
  • Bluetooth adds automatic time correction and other functions.
  • LCD display has a backlight, unlike AWG-M100.
  • LED light for the dial is a lot brighter than GA-2100.
  • Adjustable date format.
CONS
  • No Multi-Band 6.
  • No auto-activation option for LED light.
  • Most models have an inverted LCD display.

GA-B2100 Versus GA-2100


  • Overview
  • Description
  • Brand/Store
  • Availability
  • User Rating
  • Review
  • Specification
  • Size
  • Dimensions (L x W x H mm)
  • Weight (g)
  • Protection
  • Case Material
  • Bezel Material
  • Band Material
  • Glass
  • Neobrite
  • Carbon Core Guard
  • Battery
  • Low Battery Alert
  • Tough Solar
  • Battery Level Indicator
  • Power Saving
  • Bluetooth
  • Smartphone App
  • Bluetooth Functions
  • World Time
  • World Time Zones
  • World Time Cities
  • Daylight Saving Time
  • Stopwatch
  • Stopwatch Unit
  • Stopwatch Max Range
  • Measuring Modes
  • Countdown Timer
  • Countdown Timer Unit
  • Countdown Range
  • Countdown Setting Range
  • Countdown Setting Increment (Lowest)
  • Alarm
  • Hourly Time Signal
  • Light Type
  • Light Color
  • Calendar
  • Button Tone On/Off
  • Hand Shift
  • 12/24-Hour Format
  • Adjustable Date Format
  • Compatible Band Size (mm)
  • Battery Life (Approx.)
  • G-SHOCK GA-B2100

    G-SHOCK GA-B2100

    8.3
    $150.00

  • The G-Shock GA-B2100 is an upgraded version of the bestselling 2100 octagonal model with Tough Solar power and Bluetooth mobile link. By linking with a smartphone, the Bluetooth functions offer automatic time adjustment, a time place log, date reminders, world time with approximately 300 cities, auto summer time (DST) switching, timer and alarm settings, and phone finder.

     

    Bluetooth

  • In stock
  • -
  • Build
    8.5
    Functions
    8
    Value
    8.5

  • Medium

  • 48.5 x 45.4 x 11.9

  • 52

  • 200-Meter Water Resistance, Shock Resistant

  • Carbon, Resin

  • Resin

  • Resin

  • Mineral

  • Neobrite

  • Carbon Core Guard

  • Rechargeable

  • Low Battery Alert

  • Tough Solar

  • Battery Level Indicator

  • Power Save

  • Bluetooth Mobile Link

  • Casio Watches

  • Alarm Settings, Auto Summer Time (DST) Switching, Auto Time Correction, Hand Alignment Correction, Phone Finder, Reminder, Time & Place Log, Timer Settings, World Time (approx. 300 cities)

  • Home/World Time City Swap, World Time

  • 38

  • 38 + UTC

  • Auto DST Switching, DST On/Off

  • Stopwatch

  • 1 second (after first hour), 1/100 second (first hour)

  • 23:59’59”

  • elapsed time, lap times, split time

  • Countdown Timer

  • 1 second

  • 60 minutes

  • 1 second to 60 minutes

  • 1 second

  • 5 Daily

  • Hourly Time Signal

  • 1.5 or 3 Second Afterglow, Double LED, LCD Backlight, LED, Super Illuminator

  • White

  • Full Auto Calendar to 2099

  • Button Tone On/Off

  • Hand Shift

  • 12/24-Hour Format

  • Adjustable Date Format

  • 145 to 215

  • G-SHOCK GA-2100

    G-SHOCK GA-2100

    8
    $99.00

  • The G-Shock GA-2100 was launched in 2019 and quickly reached classic status in just a few years, achieving a place alongside such long-running models like the DW-5600 from the ’80s, the DW-6900 from the ’90s, and the GA-110 from the ’10s. The GA-2100 is akin to a DW-5600 in an analog-digital form. The bezel and band of the watch borrows their shapes from the classic DW-5000 origin model, and the octagonal bezel has earned it the nickname “CasiOak” among fans.

  • In stock
  • -
  • Build
    8
    Functions
    7
    Value
    9

  • Medium

  • 48.5 x 45.4 x 11.8

  • 51

  • 200-Meter Water Resistance, Shock Resistant

  • Carbon, Resin

  • Resin

  • Resin

  • Mineral

  • Varies

  • Carbon Core Guard

  • SR726W X 2

  • World Time

  • 31

  • 48 + UTC

  • DST On/Off

  • Stopwatch

  • 1 second (after first hour), 1/100 second (first hour)

  • 23:59’59”

  • 1st-2nd place times, elapsed time, split time

  • Countdown Timer

  • 1 second

  • 24 hours

  • 1 second to 24 hours

  • 1 second

  • 5 Daily

  • Hourly Time Signal

  • 1.5 or 3 Second Afterglow, Double LED, LCD Backlight, LED, Super Illuminator

  • White

  • Full Auto Calendar to 2099

  • Button Tone On/Off

  • Hand Shift

  • 12/24-Hour Format

  • 145 to 215

  • 3 Years

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Some specs for individual models may differ within a series, such as price, materials, weight, etc. Dollar prices are in U.S. currency unless otherwise noted. Click the link icons in the gallery images for articles on specific models. Gallery images with "(casio.com)" are linked to an official Casio product page. Follow your country's official G-Shock site (gshock.casio.com) for more release information.
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Specification: G-SHOCK GA-B2100

Size

Dimensions (L x W x H mm)

48.5 x 45.4 x 11.9
Weight (g)

52
Compatible Band Size (mm)

Protection

,

Case Material

,

Bezel Material

Band Material

Resin
Glass

Neobrite

Neobrite
Carbon Core Guard

Battery

Rechargeable
Low Battery Alert

Tough Solar

Battery Level Indicator

Battery Level Indicator
Power Saving

Power Save
Bluetooth

Smartphone App

Bluetooth Functions

Alarm Settings, Auto Summer Time (DST) Switching, Auto Time Correction, Hand Alignment Correction, Phone Finder, Reminder, Time & Place Log, Timer Settings, World Time (approx. 300 cities)
World Time

,

World Time Zones

38
World Time Cities

38 + UTC
Daylight Saving Time

,

Stopwatch

Stopwatch Unit

,

Stopwatch Max Range

Measuring Modes

elapsed time, lap times, split time
Countdown Timer

Countdown Timer Unit

1 second
Countdown Range

Countdown Setting Range

Countdown Setting Increment (Lowest)

1 second
Alarm

Hourly Time Signal

Hourly Time Signal
Light Type

, , , ,

Light Color

White
Calendar

Full Auto Calendar to 2099
Button Tone On/Off

Button Tone On/Off
Hand Shift

Hand Shift
12/24-Hour Format

12/24-Hour Format
Adjustable Date Format

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