Casio’s four G-Shock Flame Inside watches reached the US in January 2025. The collection pairs blue or orange gradient dials with two distinct case families: the GA-2100FL and the larger GA-100FL. At launch, the GA-2100FL models were priced at $130 and the GA-100FL models at $140; those are historical launch prices, not current retail quotes.
Which G-Shock Flame Inside models are available?
The US collection comprises four model numbers. In Casio’s naming, “1A” identifies the blue-dial colorway and “8A” the orange-dial colorway.
| Model | Dial color | Family |
|---|---|---|
| GA-2100FL-1A | Blue gradient | GA-2100FL |
| GA-2100FL-8A | Orange gradient | GA-2100FL |
| GA-100FL-1A | Blue gradient | GA-100FL |
| GA-100FL-8A | Orange gradient | GA-100FL |
Casio says vapor deposition creates the orange and blue dial gradients, while black-to-gray gradients on the bands evoke smoke. The company presents the colors and smoke motif as symbols of the drive to take on challenges; they are design elements, not functional features. Casio’s GA-2100FL-1A collection page describes the range as expressing “the blazing passion that burns within.”
How much did the watches cost at US launch?
Notebookcheck reported on January 16, 2025, that Casio launched the collection in the US at $130 for either GA-2100FL model and $140 for either GA-100FL model. These are launch-period prices from 2025, not a statement of current availability or price. Casio’s product pages establish the collection and specifications but do not establish live US stock; check current retailer listings for present-day pricing.
#1 Best Overall
- Rugged & Sporty Design – Matte black finish with bold digital display, built for tactical, military, and extreme sports enthusiasts.
- High-Brightness LED Backlight – Features Super Illuminator LED with a light guide plate, ensuring exceptional visibility in low-light conditions.
- 200M Water Resistance – Engineered for swimming, snorkeling, and outdoor adventures, this shock-resistant watch is ready for action.
- Extended 7-Year Battery Life – Powered by a CR2025 battery, offering years of reliable performance without frequent replacements.
- Shock-Resistant Structure – Built to withstand extreme conditions, making it ideal for sports, military, and rugged outdoor use.
How do the GA-2100FL and GA-100FL differ?
Both families share shock resistance, 20-bar water resistance, world time covering 48 cities, a countdown timer, and five daily alarms. Casio lists additional specifications that distinguish the families:
| Family | Models and colors | Distinctive listed features |
|---|---|---|
| GA-2100FL | GA-2100FL-1A (blue); GA-2100FL-8A (orange) | 1/100-second stopwatch; double LED illumination with Super Illuminator; Casio specifies bio-based resin in key bezel and band components. |
| GA-100FL | GA-100FL-1A (blue); GA-100FL-8A (orange) | ISO 764-compliant magnetic resistance; 1/1000-second stopwatch; auto LED light. |
GA-2100FL: octagonal case and double LED illumination
The GA-2100FL is the slimmer octagonal-case family. Its stopwatch is specified to 1/100 second, and Casio lists double LED illumination with Super Illuminator. Casio identifies bio-based resin in key bezel and band components and says this is expected to help reduce environmental impact; that material statement applies to the GA-2100FL, not the GA-100FL.
Rank #2
- Shock-Resistant Durability: Built to withstand the toughest conditions, this G-Shock watch features a rugged resin case and bezel, perfect for outdoor adventures and extreme sports.
- 200M Water Resistance: Designed for water enthusiasts, it’s suitable for scuba diving, swimming, and snorkeling, providing reliable protection up to 200 meters.
- Electro-Luminescent Backlight: The blue-green EL backlight with afterglow ensures clear visibility of the time, day, and date, even in complete darkness.
- Precision Stopwatch & Countdown Timer: Measure elapsed and split times with the 1/100-second stopwatch, or set up a countdown timer with up to a 24-hour range, ideal for timing workouts or daily tasks.
- Multi-Alarm with Flash Alert: Stay on schedule with a customizable alarm, hourly chime, and flash alert that combines light and sound for added convenience.
GA-100FL: magnetic resistance and 1/1000-second stopwatch
The GA-100FL is the larger-case family. Its additional specifications include ISO 764-compliant magnetic resistance and a 1/1000-second stopwatch, plus an auto LED light. Those features are the practical distinctions Casio lists beyond the collection’s shared functions.
Casio’s 20-bar figure is the maker’s water-resistance rating. It should not be treated as a guarantee for a particular activity; consult Casio’s usage guidance for what the rating means in practice.
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Best Value
- Sport Type: Scuba Diving
Rank #4
- Band Size: Mens-Standard
- Shock Resistant
- Auto LED Light with Afterglow
- Magnetic Resistant
Rank #3
- Super Matte Finish, Shock Resistant, 200M water resistance, LED light (Super illuminator), World time, Stopwatch, Countdown timer, 5 daily alarms, Hourly time signal, Hand shift feature
- Full auto-calendar, 12/24-hour format, Analog: 2 hands (hour, minute (hand moves every 20 seconds)), Digital: Hour, minute, second, pm, month, date, day, Approx. battery life: 5 years on CR2016
- Quartz Movement
- Case Diameter: 52.8mm
- Water resistant 200m (660ft): in general, suitable for professional marine activity and serious surface water sports, but not diving
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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