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Deal.ai › Casio
Casio
Casio G-Shock Ga-B2100-3adr Oak Dynamic Sporty Green Men's Watch With Bluetooth & 200m Water Resistance

Casio G-Shock Ga-B2100-3adr Oak Dynamic Sporty Green Men's Watch With Bluetooth & 200m Water Resistance

4.9(11 ratings)

Best price now

$231.00at i-watchChecked Nov 8

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Last seen at $231.00 at i-watch on Nov 8.
  • Checked at 2 stores.

Our take on the Casio G-Shock Ga-B2100-3adr Oak Dynamic Sporty Green Men's Watch With Bluetooth & 200m Water Resistance

The Casio G-Shock GA-B2100 is a slim, analog-digital G-Shock with Bluetooth smartphone sync, solar charging and 200-meter water resistance. Its carbon core guard case keeps it lighter and thinner than the chunky 2100-series look suggests, so it wears well on smaller wrists. Bluetooth adds automatic time correction, world time and a phone finder. It suits people who want a tough everyday watch with a retro-octagon look. Against the standard GA-2100 it adds solar power and Bluetooth; against pricier G-Shocks it gives up some sensors and display features.

Best forEveryday wear with casual or sporty outfitsSwimming and water sportsTravelers who want automatic time syncBuyers who want a tough watch without bulk
Pros
  • Solar charging with Bluetooth time sync
  • 200 m water resistance
  • Slim, lightweight carbon core guard case
  • Analog-digital display is easy to read
  • Octagonal case has a distinctive look
Cons
  • No heart rate or GPS sensors
  • Negative LCD can be hard to read at angles
  • Resin strap and bezel show scratches over time
  • Bluetooth setup needs the Casio app

Casio G-Shock Ga-B2100-3adr Oak Dynamic Sporty Green Men's Watch With Bluetooth & 200m Water Resistance prices at every store

  • i-watchNew

    In stockReturn policy

    $231.00Checked Nov 8
    Visit i-watch
  • The Casio ShopNew

    In stockShips from South Africa · priced in ZAR (ZAR 3,994.00) · duties may applyReturn policy

    $241.50Checked Nov 8
    Visit The Casio Shop

What reviewers say

  • 4.9 / 511 ratings

Owners rate it highly, praising the slim case, solar power and tough build. Most criticism centers on the small, dim negative display and the basic resin strap.

What people mention
  • Display legibilityCriticisedOwners say the negative LCD is dim and hard to read at some angles and in low light.
  • BuildPraisedReviewers describe the carbon core guard case as light but tough, handling knocks and water without issue.
  • Solar chargingPraisedOwners like that solar charging keeps it running without regular battery swaps.
  • StrapMixedSome find the resin strap comfortable; others say it feels basic and shows wear.
  • Bluetooth appMixedTime sync and phone finder work well for most, but pairing with the Casio app is sometimes fiddly.

About the Casio G-Shock Ga-B2100-3adr Oak Dynamic Sporty Green Men's Watch With Bluetooth & 200m Water Resistance

The Casio G-Shock GA-B2100-3ADR is a men's sports watch with a green resin case and a green resin band. The case measures 48.5 mm x 45.4 mm and is 11.8 mm thick. It has a mineral glass cover.

It is built with a carbon core guard structure and is shock resistant. Water resistance is rated to 200 meters. It is powered by Tough Solar and keeps time to within ±15 seconds per month.

Bluetooth connects the watch to a smartphone for world time, reminders and a phone finder feature. It also has a stopwatch, a countdown timer, alarms and a double LED light.

Case size
48.5 mm x 45.4 mm x 11.8 mm
Case material
Resin
Case color
Green
Band material
Resin
Band color
Green
Glass
Mineral glass
Water resistance
200 meters
Shock resistance
Shock resistant, carbon core guard structure
Power
Tough Solar (solar powered)
Accuracy
±15 seconds per month
Connectivity
Bluetooth, mobile link
Lighting
Double LED light
Features
World time, stopwatch, countdown timer, alarms, reminders, phone finder
Weight

Questions and answers

How is the GA-B2100 different from the GA-2100?
The GA-B2100 adds solar charging and Bluetooth smartphone sync to the same octagonal case design. The standard GA-2100 runs on a battery and has no Bluetooth.
Does it need a battery change?
It charges from light through a solar cell, so it normally runs without battery swaps. Keep it in regular light to maintain charge.
Can I swim with it?
Yes. It is rated to 200 meters of water resistance, which covers swimming and snorkeling. It is not a dive computer.
What does the Bluetooth connection do?
It syncs the time with your phone, sets world time and helps find a misplaced phone. It does not track workouts or health data.
How does it fit smaller wrists?
The case is about 48.5 by 45.4 mm but slim, and owners report it wears smaller than those figures suggest. The resin strap has several holes for adjustment.
What is in the box?
The watch, its resin strap and the user documentation. The Casio Watches app is a free download for the Bluetooth features.
Where is the Casio G-Shock Ga-B2100-3adr Oak Dynamic Sporty Green Men's Watch With Bluetooth & 200m Water Resistance cheapest?
At i-watch, for $231.00, as of our latest check.
What do buyers say about the Casio G-Shock Ga-B2100-3adr Oak Dynamic Sporty Green Men's Watch With Bluetooth & 200m Water Resistance?
Rated 4.9 out of 5 from 11 ratings.
Where can I buy the Casio G-Shock Ga-B2100-3adr Oak Dynamic Sporty Green Men's Watch With Bluetooth & 200m Water Resistance?
2 stores we checked sell it, including i-watch, The Casio Shop.

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