Is the GA-2100-4ADR good for everyday wear?

Yes. It is slim, light and shock resistant, with 200 m water resistance, so it handles daily wear and swimming.

How does it compare with the classic DW-5600 G-SHOCK?

It is slimmer and has analog hands plus a digital display, while the DW-5600 is a pure digital square. Both are tough and water resistant to 200 m.

Does it have Bluetooth or solar charging?

No. It runs on a standard battery and has no Bluetooth or solar charging. Those features appear on higher-end G-SHOCK models.

Can I read it at night?

There is an LED light, but owners say it is dim. The hands and digital display are hard to read in low light.

The watch with its resin strap, a box and a user manual. No charger is needed since it uses a battery.

Is it too big for small wrists?

It is one of the smaller G-SHOCK cases, so it fits most wrists well. The resin strap has several holes for adjustment.

G-SHOCK by Casio Men's 20mm Resin Strap Wristwatch, Red and Black, (GA-2100-4ADR)

Best price now

$99.73at WalmartChecked Nov 10

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G-SHOCK by Casio Men's 20mm Resin Strap Wristwatch, Red and Black, (GA-2100-4ADR)

Best price now

$99.73at WalmartChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $99.73 at Walmart on Nov 10.

Our take on the G-SHOCK by Casio Men's 20mm Resin Strap Wristwatch, Red and Black, (GA-2100-4ADR)

The G-SHOCK GA-2100-4ADR is the red-and-black version of Casio's "CasiOak" line: an analog-digital watch in a slim octagonal case with a resin strap. It pairs a quartz movement with a dual analog-digital display, world time, alarms, a stopwatch and a countdown timer. It suits people who want a tough everyday watch with a streetwear look, and it is far slimmer and lighter than classic chunky G-SHOCKs like the DW-5600. Owners like the look and the light weight; some find the analog hands and the negative digital display hard to read in low light.

Best forEveryday wear with casual or streetwear outfitsBuyers who want G-SHOCK toughness in a slim caseTravelers who use world time and multiple alarmsGift for a teen or first watch

Pros

Slim octagonal case, much less bulky than classic G-SHOCKs
Shock-resistant resin build with 200 m water resistance
Analog-digital display with world time, alarms, stopwatch and timer
Light on the wrist and comfortable for all-day wear
Red and black colorway stands out from plain black models

Cons

Analog hands and digital readout can be hard to read in dim light
No solar charging or Bluetooth, unlike pricier G-SHOCK models
Resin strap and bezel show scratches and wear over time
Basic LED light rather than a bright backlight

G-SHOCK by Casio Men's 20mm Resin Strap Wristwatch, Red and Black, (GA-2100-4ADR) 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.
$99.73Free shippingChecked Nov 10
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What reviewers say

Owners rate the GA-2100 series highly for its slim case, light weight and tough build. Many praise the CasiOak look as a step up from bulky G-SHOCKs. Common complaints are legibility in low light and the plastic feel of the strap and bezel.

What people mention

LegibilityCriticisedOwners say the analog hands and the dark digital display are hard to read in low light.
Size and weightPraisedReviewers like how slim and light it feels compared with older, chunkier G-SHOCKs.
BuildMixedThe watch feels tough and shock resistant, but the resin strap and bezel scratch and show wear.
DesignPraisedThe octagonal case and red-and-black colorway get frequent compliments.
LightCriticisedThe LED light is described as dim and not very useful at night.
FeaturesMixedWorld time, alarms and stopwatch are useful, but there is no solar charging or Bluetooth.

About the G-SHOCK by Casio Men's 20mm Resin Strap Wristwatch, Red and Black, (GA-2100-4ADR)

This G-SHOCK by Casio men's wristwatch, model GA-2100-4ADR, is an analog-digital quartz watch with a red dial. It is worn on a 20mm resin strap in red and black.

It has an alarm and a world time function.

Brand: G-SHOCK (Casio)
Model: GA-2100-4ADR
Display: Analog-digital
Movement: Quartz
Dial color: Red
Strap material: Resin
Strap width: 20mm
Functions: Alarm, world time
Gender: Men's
Size: One size

Specifications

color: RedSource
size: One SizeSource

Questions and answers

Is the GA-2100-4ADR good for everyday wear?: Yes. It is slim, light and shock resistant, with 200 m water resistance, so it handles daily wear and swimming.
How does it compare with the classic DW-5600 G-SHOCK?: It is slimmer and has analog hands plus a digital display, while the DW-5600 is a pure digital square. Both are tough and water resistant to 200 m.
Does it have Bluetooth or solar charging?: No. It runs on a standard battery and has no Bluetooth or solar charging. Those features appear on higher-end G-SHOCK models.
Can I read it at night?: There is an LED light, but owners say it is dim. The hands and digital display are hard to read in low light.
What is in the box?: The watch with its resin strap, a box and a user manual. No charger is needed since it uses a battery.
Is it too big for small wrists?: It is one of the smaller G-SHOCK cases, so it fits most wrists well. The resin strap has several holes for adjustment.
Where is the G-SHOCK by Casio Men's 20mm Resin Strap Wristwatch, Red and Black, (GA-2100-4ADR) cheapest?: At Walmart, for $99.73, as of our latest check.
What do buyers say about the G-SHOCK by Casio Men's 20mm Resin Strap Wristwatch, Red and Black, (GA-2100-4ADR)?: Rated 5 out of 5 from 8 ratings.