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Deal.ai › Casio › Wrist Watches
Casio
Casio G-Shock Alarm World Time Analog-Digital Green GA-B2100FC-3A

Casio G-Shock Alarm World Time Analog-Digital Green GA-B2100FC-3A

Best price now

$148.64at WalmartChecked 22 min ago

Compared across 3 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $148.64 at Walmart (checked Nov 11, 2026).
  • Checked at 3 stores.

Our take on the Casio G-Shock Alarm World Time Analog-Digital Green GA-B2100FC-3A

The GA-B2100FC-3A is the 'CasiOak' octagonal G-Shock in a green-on-green finish, with a Tough Solar battery, Bluetooth phone link and world time. It keeps the slim 2100 case and analog-digital dial that made the line popular, and adds solar charging over the basic GA-2100. Owners like the light, comfortable resin strap and the 200m water resistance; the small analog hands and negative LCD remain the usual complaints. It suits people who want a rugged everyday watch with a retro-tech look and no charging routine.

Best forEveryday wear with casual or street outfitsTravelers who want world time and a phone-linked watchOutdoor and water use up to 200mBuyers who want solar charging without a smartwatch
Pros
  • Tough Solar charging removes battery swaps
  • Bluetooth link for time sync and phone finder
  • World time across many cities plus stopwatch, timer and alarms
  • 200m water resistance and shock-resistant resin case
  • Slim octagonal case wears smaller than most G-Shocks
  • Light resin strap with a secure buckle
Cons
  • Analog hands are small and hard to read in low light
  • Negative LCD is dim and low-contrast
  • No sapphire crystal; mineral glass scratches
  • Bluetooth features are basic compared with a smartwatch
  • Green-on-green dial reduces contrast

Casio G-Shock Alarm World Time Analog-Digital Green GA-B2100FC-3A prices at every store

  • WalmartNew

    In stockSold by CW WATCHESReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $148.64Free shippingChecked 22 min ago
    Visit Walmart
  • Fash BrandsNew

    In stock

    $222.00Free shippingChecked 22 min ago
    Visit Fash Brands
  • CASIONew

    Out of stock

    $96.00Free shippingChecked 22 min ago
    Visit CASIO

Store links may earn us a commission. Some prices via Klarna.

Casio G-Shock Alarm World Time Analog-Digital Green GA-B2100FC-3A price history

$96.00$96.00
Nov 8Nov 11

Lowest price we've seen: $96.00 on Nov 8 at CASIO. Tracked across 2 stores since Nov 8.

What reviewers say

Owners treat the GA-B2100FC-3A as a tough, good-looking daily watch and value the solar charging and Bluetooth sync. The recurring complaints are legibility: small hands and a dim negative display.

What people mention
  • LegibilityCriticisedOwners say the small hands and negative LCD are hard to read, especially indoors or at night.
  • Solar chargingPraisedReviewers like that Tough Solar keeps the watch running without battery swaps.
  • BuildPraisedThe shock-resistant resin case and 200m rating are seen as genuinely rugged.
  • ComfortPraisedThe slim case and light resin strap are called comfortable for all-day wear.
  • BluetoothMixedPhone sync and the finder are useful, but owners say the app features are limited.
  • GlassCriticisedSome owners report scratches on the mineral crystal with regular use.

About the Casio G-Shock Alarm World Time Analog-Digital Green GA-B2100FC-3A

Casio watch - GAB2100FC-3A - Band: Green

Specifications

Color (Strap)
GreenSource
Closure
BuckleSource
Glass
MineralSource
Watch Strap Material
ResinSource

Questions and answers

Is the GA-B2100FC-3A worth it over the standard GA-2100?
Yes if you want solar charging and Bluetooth time sync. The basic GA-2100 is cheaper but runs on a coin cell and has no phone link.
Does it need charging or a battery change?
No routine charging. Tough Solar runs off light, and the rechargeable cell is not meant to be user-replaced like a normal battery.
How does it compare with a G-Shock square?
The 2100 case is slimmer and the analog-digital dial looks more like a traditional watch. Squares like the GW-M5610 have a clearer full LCD and a simpler look.
Can I swim or dive with it?
It is rated 200m water resistant, so swimming and snorkeling are fine. Casio does not rate it for scuba diving.
What is in the box?
The watch, a quick-start guide and the usual Casio paperwork. No charging cable is needed.
Does the Bluetooth link work with both iPhone and Android?
Yes, through the Casio Watches app, which handles time sync, world time and phone finding.
Where is the Casio G-Shock Alarm World Time Analog-Digital Green GA-B2100FC-3A cheapest?
At Walmart, for $148.64, as of our latest check.
Is the Casio G-Shock Alarm World Time Analog-Digital Green GA-B2100FC-3A at its lowest price?
The lowest price we've seen is $96.00 at CASIO on November 8, against $148.64 now.
Where can I buy the Casio G-Shock Alarm World Time Analog-Digital Green GA-B2100FC-3A?
3 stores we checked sell it, including Walmart, CASIO, Fash Brands.

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Functions
Timer, Alarm, Date, Worldtimer, SolarSource
Gender
MaleSource
Case Color
GreenSource
Movement Type
QuartzSource
Display Type
Digital, AnalogSource
Dial Color
GreenSource
Time Format
12 Hours, 24 HoursSource
Case Material
ResinSource
Water Protection
20 ATM (200m)Source
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