Casio Unveils G-Shock Mudman GDG-B100 With MIP LCD Display

The Casio G-Shock Mudman GDG-B100 is a rugged outdoor wearable manufactured by Casio within its shock-resistant G-Shock timepiece lineup. Designed specifically for hikers and outdoor enthusiasts, the wristwatch solves durability, readability, and tracking challenges in harsh environments by offering mud resistance, dust sealing, 200-meter water resistance, and an integrated accelerometer for activity logging.

Key Facts

Attribute Value

Manufacturer Casio

Model Series G-Shock Mudman GDG-B100

Model Variants Black (GDG-B100-1), Green (GDG-B100-1A3), Sand (GDG-B100-1A5)

Dimensions 63.6 × 49.6 × 16.2 mm

Weight 66 grams

Case Construction Carbon fiber-reinforced resin with Carbon Core Guard structure

Display Type Memory-in-Pixel (MIP) LCD with red LED backlight

Water Resistance Up to 200 meters

Environmental Protection Mud resistance and dust sealing

Battery Type and Lifespan Conventional CR2032 battery; rated for 2 years of use

Fitness Tracking Capacity Logs up to 100 runs with up to 140 laps each

Connectivity Smartphone Link

Official Retail Price JPY 38,500 (~RM996 in Malaysia conversion)

What Features Define the Casio G-Shock Mudman GDG-B100 Design and Display?

The Casio G-Shock Mudman GDG-B100 features a rugged off-road aesthetic built with carbon fiber-reinforced resin and Casio’s Carbon Core Guard structure. Measuring 63.6 × 49.6 × 16.2 mm and weighing 66g, it introduces the series’ first high-visibility Memory-in-Pixel (MIP) LCD display paired with a dedicated red LED backlight.

According to reporting from Notebookcheck, this release represents the first model in the Mudman line to implement Casio’s Memory-in-Pixel display technology. The MIP screen maintains clear readability in bright sunlight while keeping power consumption low. To preserve a wearer’s adjusted night vision in the field, Casio equipped the module with a red LED backlight rather than standard white or blue illumination. The exterior casing provides 200m water resistance, full dust sealing, and mud resistance across three colorways: black (B100-1), green (1A3), and sand (1A5).

Notebookcheck reports that case construction consists of carbon fibre-reinforced resin, as well as what is called Carbon Core Guard structure.

The Casio G-Shock Mudman GDG-B100 is the first Mudman watch equipped with a low-power Memory-in-Pixel (MIP) LCD and a night-vision-preserving red LED backlight.

How Does the GDG-B100 Handle Power and Fitness Tracking?

The Casio G-Shock Mudman GDG-B100 handles activity tracking through a built-in accelerometer and Smartphone Link connectivity, while drawing power from a standard replaceable CR2032 coin-cell battery. It tracks speed, pace, and distance, storing up to 100 distinct running sessions with 140 laps each over a rated two-year battery lifespan.

Unlike many modern outdoor wearables or solar-powered Casio models, the watch omits Casio’s Tough Solar charging technology as well as rechargeable battery cells. Power is supplied entirely by replaceable CR2032 batteries rated for two years of operation. For training and activity monitoring, its built-in accelerometer records distance, speed, and pace. Users can review up to 100 logged runs with 140 laps per log, operating via Smartphone Link to deliver lightweight connected functionality.

Operating on a standard replaceable CR2032 coin-cell battery rated for two years, the GDG-B100 tracks distance, pace, and up to 100 runs containing 140 laps each.

How It Compares

The Casio G-Shock Mudman GDG-B100 is designed primarily for hikers, runners, and outdoor workers who require extreme physical durability without the inconvenience of frequent charging cables. It serves users who prioritize field reliability, optical night-vision retention, and core run metrics over full-featured, power-hungry smartwatch ecosystems.

Feature / Device Casio G-Shock Mudman GDG-B100 Casio G-Squad GBD-H2000

Core Relationship Base design architecture / Battery alternative Rechargeable parent model reference

Power Source Replaceable CR2032 coin battery (2-year rating) Rechargeable battery system

Solar Charging None (omits Tough Solar) Supported / Included

Display Type Memory-in-Pixel (MIP) LCD Memory-in-Pixel (MIP) LCD

Target Use Case Rugged outdoor hiking, mud/dust exposure, running logs Advanced multisport and heart-rate fitness tracking

Lowyat.NET characterizes the GDG-B100 as essentially a replaceable-battery alternative to the G-Squad GBD-H2000, retaining similar fitness metrics while eliminating rechargeable maintenance.

The GDG-B100 functions as a replaceable-battery counterpart to the G-Squad GBD-H2000 by trading rechargeable solar architecture for a two-year CR2032 cell.

Common Questions

Does the Casio Mudman GDG-B100 feature Tough Solar charging?

No, the Mudman GDG-B100 does not include Casio’s Tough Solar charging technology or rechargeable batteries. It is powered exclusively by a conventional replaceable CR2032 battery rated to last approximately two years under normal usage conditions.

What fitness metrics can the Mudman GDG-B100 track?

Using an integrated accelerometer and Smartphone Link, the watch tracks distance, speed, and pace. Its internal memory logs up to 100 separate running sessions, supporting up to 140 recorded laps per run.

What are the official color options and retail pricing for the GDG-B100?

The GDG-B100 comes in black (B100-1), green (1A3), and sand (1A5). In Japan, all three models retail for JPY 38,500 (~RM996). Malaysian market availability remains unconfirmed on Casio Malaysia’s official website.

Sources and Methodology

This article synthesizes technical reporting from Lowyat.NET and Notebookcheck, incorporating primary product catalog specifications from Casio Japan for product codes GDG-B100-1, GDG-B100-1A3, and GDG-B100-1A5. Currency values reflect source-reported figures of JPY 38,500 converted to Malaysian Ringgit (~RM996). Local availability outside Japan is unknown as of publication.

This article was last updated on October 5, 2026.