G-SHOCK GST-B400

G-SHOCK GST-B400

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The G-Shock GST-B400 is a slim G-STEEL model at 2.4 millimeters thinner than the previous GST-B300. It forgoes the front light button of the GST-B300 in favor of a sportier, racing-like style.

 

Bluetooth

$400.00

Categories: , , Tags: , ,

List Price: $400 (GSTB400D-1A with stainless steel band), $320 (GSTB400-1A with resin band)

Size: Large
Dimensions (L x W x H): 46.6 x 49.6 x 12.9 mm
Weight: 160 grams (GSTB400D-1A), 80 grams (GSTB400-1A)
Module: 5657 (instruction manual at casio.com)
Battery Type (Lifespan): Solar Rechargeable
Series Launch Year: 2021

Notable Features: Tough Solar, Bluetooth, World Time, 1/100-Second Stopwatch, Timer, Double LED Light

See full specifications for GSTB400D-1A under “Additional information” tab above.

(Compatible band size for GST-B400 models with a resin band is 145 to 215 mm. Band size spec is not available for models with a stainless steel band.)

Suggested Uses: Fashion, Office, Travel

Latest GST-B400 News

Recent GST-B400 Releases:

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View all GST-B400 articles on G-Central

GST-B400 Versus GST-B300

The GST-B400 offers a slimmer size and lighter weight than the GST-B300, but it sacrifices some of the functions (such as a 1/100-second stopwatch instead of 1/1000-second and a 60-minute timer instead of 24 hours). Some advantages of the GST-B400 are that it has the reminder function (Bluetooth required) and the date format and language are adjustable.


  • 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
  • G-SHOCK GST-B400

    G-SHOCK GST-B400

    $400.00

  • The G-Shock GST-B400 is a slim G-STEEL model at 2.4 millimeters thinner than the previous GST-B300. It forgoes the front light button of the GST-B300 in favor of a sportier, racing-like style.

     

    Bluetooth

  • In stock
  • -

  • Large

  • 46.6 x 49.6 x 12.9

  • 160

  • 200-Meter Water Resistance, Shock Resistant

  • Carbon, Resin

  • Resin, Stainless Steel, Varies

  • Stainless Steel, Varies

  • Mineral

  • Neobrite

  • Carbon Core Guard

  • Rechargeable

  • Low Battery Alert

  • Tough Solar

  • Battery Level Indicator

  • Power Save

  • Bluetooth Mobile Link

  • G-Shock Connected

  • Alarm Settings, Auto Summer Time (DST) Switching, Auto Time Correction, Hand Alignment Correction, One-Touch Time Correction, Reminder, 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

  • G-SHOCK GST-B300

    G-SHOCK GST-B300

    $400.00

  • The G-Shock GST-B300 returned to a more rugged G-STEEL style after the smooth look of the GST-B200. The GST-B300 is the only G-STEEL model with a front light button. The GST-B300 appears to be in the process of getting phased out in the U.S. and Europe, but stock may still be available at some retailers.

     

    Bluetooth

  • In stock
  • -

  • Large

  • 51 x 50.3 x 15.3

  • 185

  • 200-Meter Water Resistance, Shock Resistant

  • Carbon, Resin

  • Resin, Stainless Steel, Varies

  • Stainless Steel, Varies

  • Mineral

  • Neobrite

  • Carbon Core Guard

  • Rechargeable

  • Tough Solar

  • Battery Level Indicator

  • Power Save

  • Bluetooth Mobile Link

  • G-Shock Connected

  • Alarm Settings, Auto Summer Time (DST) Switching, Auto Time Correction, Hand Alignment Correction, One-Touch Time Correction, Phone Finder, Timer Settings, World Time (approx. 300 cities)

  • Home/World Time City Swap, World Time

  • 39

  • 39 + UTC

  • Auto DST Switching, DST On/Off

  • Stopwatch

  • 1/10 second (after first hour), 1/1000 second (first hour)

  • 23:59’59”9

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

  • Countdown Timer

  • 1/10 second

  • 24 hours

  • 1 second to 24 hours

  • 1 second

  • 5 Multi-Function (daily, one time, or schedule)

  • Hourly Time Signal

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

  • White

  • Full Auto Calendar to 2099

  • Button Tone On/Off

  • Hand Shift

  • 12/24-Hour Format

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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 GST-B400

Size

Dimensions (L x W x H mm)

46.6 x 49.6 x 12.9
Weight (g)

160
Protection

,

Case Material

,

Bezel Material

, ,

Band Material

Stainless Steel, Varies
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, One-Touch Time Correction, Reminder, 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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