Does it need a battery change?

No. Tough Solar charges from any light source, so there is no routine battery swap. Keep it in light regularly and it stays charged.

How is it different from the standard GA-2100?

It adds Tough Solar charging and Bluetooth phone linking. The case shape and analog-digital layout are the same.

Can I set the time from my phone?

Yes, through the Casio Watches app over Bluetooth. It also handles time zones when you travel.

Is it good for swimming?

Yes. It is rated to 200 m water resistance, so swimming and snorkeling are fine. Avoid pressing buttons underwater.

How does the white version hold up?

The white resin can pick up dirt and scuffs. It cleans up with mild soap and water, but it will not stay spotless with heavy use.

Does it have a light for the display?

Yes, there is a backlight for the digital window and hands. The small digital text is still hard to read at a glance.

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This hour's deals

Casio G-Shock GA-B2100FC-7AER Solar Watch

−40%

Clothes · Silver Factory

A solar G-Shock that never needs a battery swap

Name: Casio G-Shock GA-B2100FC-7AER Solar Watch
Brand: Casio
Availability: InStock

Casio G-Shock GA-B2100FC-7AER Solar Watch

Casio's G-Shock solar watch for anyone who wants tough, set-and-forget timekeeping.

Deal score 4.5 · Good deal

$150.00$250.00 Silver Factory's regular price

You save $100.00 at Silver Factory

Deal.ai's agents found this deal on November 9. The store may have changed its price since.

Why it's a great deal

Silver Factory lists its regular price at $250.00: 40% off by its own figures
Rated 5.0 out of 5 by 129 buyers

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About the Casio G-Shock GA-B2100FC-7AER Solar Watch

The GA-B2100FC-7AER is Casio's solar-powered take on the slim 'CasiOak' G-Shock, finished in a white resin strap with a matching dial. It pairs the octagonal case shape with Tough Solar charging and Bluetooth phone linking, so it sets the time from your phone and stays charged from light. It suits people who want a rugged everyday watch with analog hands and a digital display without the bulk of a full-size G-Shock. Against the standard GA-2100 it adds solar power and Bluetooth, and against pricier metal CasiOaks it stays light and affordable.

Best forEveryday wear with casual or streetwear outfitsBuyers who want a rugged watch that never needs a battery changePeople who like the slim octagonal G-Shock caseTravelers who want automatic time setting via phone

Pros

Tough Solar charging removes routine battery swaps
Bluetooth link sets time and time zones from a phone
Slim, light octagonal case wears smaller than most G-Shocks
200 m water resistance and shock-resistant build
Analog hands plus a small digital window cover both at a glance

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