Casio Releases G-SHOCK Bluetooth(R) v4.0 Watches Capable of Two-Way Operability with a Smartphone

 October 10, 2013


Casio Releases G-SHOCK Bluetooth® v4.0 Watches Capable of Two-Way Operability with a Smartphone

These Watches Can Even Control a Smartphone’s Music Player

DOVER, NJ (October 10, 2013) Casio America, Inc. announced today the release of the GB-6900B/GB-X6900B shock-resistant watches. These new watches support Bluetooth® v4.0 with low energy wireless technology enabling pairing with a smartphone to control a smartphone music player from the watch, or adjust watch settings from a smartphone.*

Last year, Casio G-SHOCK released the GB-5600AA and GB-6900AA watches that can communicate with an iPhone or AndroidTM smartphone, which enabled features such as an audible, vibration and display notification on the watch when there is an incoming call or email, and auto synchronization to time data received from a paired smartphone. The watches grabbed attention among fans of innovative, next-generation technology timepieces.

GBX6900B-4 Digital Watch GBX6900B-1 Digital Watch GBX6900B-2 Digital Watch
GBX6900 Series
High Resolution Images

The new watches released today add to the previous notification features, by offering richer, two-way operability with a smartphone, for improved usability. A button on the watch can be used to operate smartphone applications, and a paired smartphone can be used to set features on the watch, such as the alarm, Countdown Timer and World Time.

The GB-6900B takes its shape from the classic G-SHOCK DW-6900, while the GB-X6900B has a big watchcase to emphasize toughness, also influenced by the design of the DW-6900. Both of these new models come in three colorways.

Compatible with the following smartphones (as of August 7, 2013):

  • iPhone 5 / iPhone 4S



Water Resistance

200 meters



Bluetooth® v4.0

Signal Range

Up to 2m (may differ depending on surrounding conditions)


World Time

100 cities (35 time zones, daylight saving on/off) and Coordinated Universal Time (UTC)


5 daily alarms or one-time alarms (with 1 snooze alarm), hourly time signal


1/100-second; measuring capacity:999:59'59.99";
elapsed time, split time, 1st and 2nd place time


Setting accuracy: 1 second; 100-hour maximum per set; unit of measure: 1/10-second


LED backlight (super illuminator and afterglow); auto light switch; selectable illumination duration: 1.5 or 3.0 seconds

Other Features

Mobile link; vibe alert; tap function; full auto-calendar, 12/24-hour format; button operation tone on/off; low battery warning; power-saving function*
*Mobile Link turns off automatically after a fixed amount of time to save power

Accuracy at Normal Temperature

±15 seconds per month

Approx. Battery Life

Approx. 2 years on CR2032*
* Mobile link used 12 hours per day

Size of Case

GB-6900B: 53.2x50.0x18.7mm
GB-X6900B: 57.5x53.9x20.4mm

Total Weight

GB-6900B-1B/GB-6900B-3/GB-6900B-7: Approx. 65g
GB-6900B-1: Approx. 70g
GB-X6900B: Approx. 82g

*Available features depend on the smartphone model. For a list of supported smartphones and detailed specifications, visit These features require the G-SHOCK+ application, which is available for download from the App Store for iPhone or Google Play for GALAXY S4. G-SHOCK+ will be made available for download concurrently with the release of the watches


CASIO’s shock-resistant G-SHOCK watch is synonymous with toughness, born from the developer Mr Ibe’s dream of ‘creating a watch that never breaks’. Over 200 handmade samples were created and tested to destruction until finally in 1983 the first, now iconic G-SHOCK hit the streets of Japan and began to establish itself as ‘the toughest watch of all time’. Each watch encompasses the 7 elements; electric shock resistance, gravity resistance, low temperature resistance, vibration resistance, water resistance, shock resistance and toughness. The watch is packed with Casio innovations and technologies to prevent it from suffering direct shock, this includes internal components protected with urethane and suspended timekeeping modules inside the watch structure. Since it’s launch, G-SHOCK has continued to evolve, continuing to support on Mr Ibe’s mantra “never, never give up”. This 2013, G-SHOCK are celebrating their 30th anniversary.

About Casio America
Casio America, Inc., Dover, N.J., is the U.S. subsidiary of Casio Computer Co., Ltd., Tokyo, Japan, one of the world’s leading manufacturers of consumer electronics and business equipment solutions, established in 1957. Casio America, Inc. markets calculators, keyboards, digital cameras, mobile presentation devices, disc title and label printers, watches, cash registers and other consumer electronic products. Casio has strived to realize its corporate creed of “creativity and contribution” through the introduction of innovative and imaginative products. For more information, visit