G-Shock RANGEMAN Review


G-Shock is known for some of the most handsome-looking tactical watches in the market. One of its most popular collection, the Master of G series, traditionally receives G-Shock’s newest technologies and geared towards certain people (military, divers, and other occupations that are exposed to extreme conditions).

If you’re looking for a rugged and timeless day-to-day watch, look out for the heavy-duty Rangeman watch from the Master of G series. Dubbed as a survival watch survival watch, the G-Shock Rangeman is the first professional watch to be equipped with G-Shock’s Triple Sensor technology, which means it works with an altimeter, barometer, and thermometer.


The G-Shock Rangeman is an impressive-looking watch – it has a navy-green resin band with black face and bright yellow accents on the side button and dial. The display is fully digital and features bright LED backlight (that auto-lights up in low-light settings).

  • Lightweight – This watch weighs just under 10 ounces, so you wouldn’t consider it heavy. But the Rangeman certainly feels solid. There’s nothing flimsy or cheap about its construction.
  • Attention-to-details – The Rangeman has been put under the microscope in terms of design. You’d see the attention to detail given to this watch, from the compass at the top left-hand corner, to the solidly-built buttons (even when wearing gloves), to the hint of gold metal in the face, and the raised part that prevents its strap from slipping.
  • A Blend of Metal and Plastic – You can feel that the Rangeman is on the higher-priced range, particularly for the amount of metal used all throughout. The case back, strap buckle, loop and pushers are all built using heavy-duty steel.
  • Durable Window – The window uses mineral crystal for added protection and scratch resistance.
  • Smooth button operation – The cylindrical buttons are very easy to press. The most-used button, the sensor button positioned at the center right, is designed with a metal cover to extend its life and keep dirt out.

On the back of the watch, you’ll see an engraved design figure of the “Rangeman” mascot, which is rare for Casio to include with its design elements. G-Shock’s Rangeman feels comfortable on the wrist, despite its oversized look. It was built for toughness, but it isn’t as masculine as you’d think.


G-Shock Rangeman ReviewIf you weren’t impressed with the Rangeman’s design, the features will definitely blow your mind. The highlights include:

  • Digital Compass – The easy-to-use compass measures and displays direction of 1/16 points with a range of 0 to 359 degrees. It features magnetic declination correction and bidirectional calibration.
  • Triple Sensor Technology – This tech is designed for the adventurers and backpackers out for a weekend trip. This trio tech helps with determining altitude, temperature and weather conditions can be a life-saver for someone. Note that all of them require an initial set-up, but once this is done, it will show specific measurements any time and day.
    • Altimeter (Altitude measuring sensor) – It can be used to replace a GPS, if needed.
    • Barometer (Atmospheric pressure measurement) – It lets you predict weather using barometric pressure.
    • Thermometer – It provides accurate temperature readings.

To access these tools, you need to push the middle right button and wait for the beep – one beep (for the altimeter), two beeps for the compass, and three beeps for both the thermometer and barometer.

  • Solar Power Capability – The cool thing about G-Shocks in general is that most of the models require no battery change or charge ever. It has a solid, solar power capability, which means you can get lost in an island and still get to use the Rangeman watch without fear of its battery dying.
  • Save Records with Built-in Memory – The G-Shock Rangeman allows you to save up to 40 records, such as date, time, temperature, sunrise/sunset data, barometric pressure records, and more. Take advantage of the built-in memory…after all, Rangeman’s one-touch recording is exceptionally user-friendly.
  • Water, Mud & Shock Resistant – Built for the adventurer in mind, Rangeman’s design and features all boil down to how tough the watch is. It can withstand water for up to 200M deep and low temperatures up to -10 C/14 F.
  • Multi-Band Atomic Timekeeping (US, UK, Germany, Japan, China) – The Rangeman receives time calibration radio signals for accurate timekeeping at all times. You can set the watch to manually receive signals, or auto-receive signals up to 6 times per day.

Pros and Cons

The feature-packed G-Shock Rangeman is definitely one of the best from the G Series, but like any high-end watch, it still has a few misgivings that you should consider.


  • Long-lasting and extremely durable
  • Made of high-quality steel and plastic (resin)
  • Exceptional design with interesting accents
  • Solar-powered with a battery life that can last up to 10 years
  • Mud, shock, low-temperature, and water resistant
  • Includes a digital compass
  • Triple Sensor Technology (altimeter, barometer, thermometer) with one-push access button
  • Multi-Band Atomic Timekeeping
  • Lightweight, but feels solid
  • Equipped with world time (it has data for 31 time zones, 48 cities, city code display and daylight saving)
  • 1/10 Second Stopwatch with countdown timer and calendar


  • Bigger than traditional G-Shock watches
  • Tons of settings to do (there’s a manual available, but the “book” is super-long it can be challenging)
  • Negative display (light text on black background) can make it hard for other people to read time
  • There’s a learning curve to really take advantage of G-Shock Rangeman’s abundant features

G-Shock Rangeman Review Video

The official G-Shock video of the GW9400


The G-Shock Rangeman is a handsome-looking tactical watch that’s perfect for outdoorsy people and those who require a watch that can handle abuse. It may not be the best choice for people with bad eyesight since it has a negative display, but if this isn’t an issue for you, Rangeman is definitely worth the price.

The fact that the G-Shock Rangeman is solar-powered is a huge edge, especially these days where smartwatches are competing with traditional watches. It’s durable, lightweight, feature-packed, water- and scratch-resistant, made of high-quality steel and priced fairly for the numerous things it could do. The G-Shock Rangeman is definitely a survival watch, and if you’re the adventurous type, it can be a life-saving investment.