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Deal.ai › Casio › Wrist Watches
Casio
Casio G-Shock Bluetooth Solar Bio-Based Band Watch GA-B2100BEG-1A

Casio G-Shock Bluetooth Solar Bio-Based Band Watch GA-B2100BEG-1A

Best price now

$134.00at CreationWatchesChecked Nov 9

Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Price facts

  • Last seen at $134.00 at CreationWatches on Nov 9.

Our take on the Casio G-Shock Bluetooth Solar Bio-Based Band Watch GA-B2100BEG-1A

The GA-B2100BEG-1A is a blacked-out version of Casio's GA-B2100, the slim 'CasiOak' G-Shock with analog hands over a digital display. It adds solar charging and Bluetooth phone pairing to the octagonal case, and this edition uses a bio-based resin band. It is tougher and lighter than most steel analog watches at the same size, though the negative LCD is dimmer than a standard display. It suits people who want a rugged everyday watch with phone time sync and no charging routine.

Best forEveryday wear with rough useTravelers crossing time zonesBuyers wanting solar plus Bluetooth in a slim G-ShockFans of the octagonal CasiOak look
Pros
  • Solar charging means no battery swaps in normal use
  • Bluetooth syncs time and settings through the Casio Watches app
  • 200m water resistance and shock-resistant resin case
  • Slimmer and lighter than older 2100-series G-Shocks
  • Bio-based resin band and case reduce fossil-plastic content
  • Analog hands plus digital display cover both quick reads and timers
Cons
  • Negative LCD is harder to read in low light than a positive display
  • Mineral glass scratches more easily than sapphire
  • Bluetooth features are limited without the phone app
  • Hands can obscure the small digital subdial
  • No GPS or heart-rate features despite the connected label

Casio G-Shock Bluetooth Solar Bio-Based Band Watch GA-B2100BEG-1A prices at every store

  • CreationWatchesNew

    In stock

    $134.00Free shippingChecked Nov 9
    Visit CreationWatches

Store links may earn us a commission. Price via Klarna.

Casio G-Shock Bluetooth Solar Bio-Based Band Watch GA-B2100BEG-1A price history

$134.00$134.00
Nov 8Nov 10

Lowest price we've seen: $134.00 on Nov 8 at CreationWatches. Tracked across 1 store since Nov 8.

What reviewers say

Owners of the GA-B2100 line praise the slim case, solar charging and the CasiOak styling. The common complaints are the dim negative display on this variant and the plastic feel of the band.

What people mention
  • Display legibilityCriticisedOwners say the negative LCD is dim and hard to read at an angle or in low light.
  • Solar chargingPraisedReviewers report the solar cell keeps the watch charged with normal indoor and outdoor light.
  • Size and weightPraisedWearers call it noticeably slimmer and lighter than earlier G-Shock models.
  • Bluetooth appMixedTime sync works well once paired, but some find setup and re-pairing awkward.
  • Build and glassMixedThe resin case feels solid, though owners note the mineral glass scratches over time.
  • Band comfortPraisedThe bio-based resin band is reported as soft and comfortable for all-day wear.

Specifications

Series
Casio G-ShockSource
Case Color
BlackSource
Color (Strap)
BlackSource
Movement Type
Quartz, SolarSource
Display Type

Questions and answers

Is the GA-B2100BEG-1A worth it over the standard GA-2100?
Yes if you want solar charging and Bluetooth time sync. The standard GA-2100 is cheaper and uses a battery, but you give up the phone pairing and solar cell.
Does it need charging or battery changes?
It runs on a solar cell and should not need routine battery swaps. Keep it in regular light, and use power saving if it sits in a drawer.
Can I swim and shower with it?
Yes. It is rated to 20 ATM (200m), which covers swimming and showering. Avoid pressing buttons underwater.
What does the Bluetooth connection do?
It syncs the time automatically through the Casio Watches app and lets you set alarms, timers and world time from the phone. It does not add notifications or fitness tracking.
How does the negative display compare with the positive one?
The negative LCD looks sharper but is dimmer in low light and at angles. If legibility matters most, the positive-display GA-B2100 versions are easier to read.
What is in the box?
The watch, a quick-start manual and the usual Casio paperwork. No charging cable is included because it charges from light.
Where is the Casio G-Shock Bluetooth Solar Bio-Based Band Watch GA-B2100BEG-1A cheapest?
At CreationWatches, for $134.00, as of our latest check.

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Digital, Analog
Source
Dial Color
BlackSource
Glass
MineralSource
Watch Strap Material
ResinSource
Functions
Bluetooth, Waterproof, Solar, ShockproofSource
Gender
MaleSource
Case Material
ResinSource
Water Protection
20 ATM (200m)Source