Casio G-Shock GA-2100 vs Casio G-Shock GA-700

Side-by-side comparison of specifications and features

CasioG-Shock GA-2100

GA-2100-1A1

CasioG-Shock GA-700

GA-700-1B

Key Differences

Best Value

Casio G-Shock GA-700 (GA-700-1B)

Starting from $114

Biggest Price Drop

Casio G-Shock GA-2100 (GA-2100-1A1)

-23.1% in 30 days

Price Comparison

Casio G-Shock GA-2100

MSRP

$120

New

$118

Used

$91

Casio G-Shock GA-700

MSRP

$110

New

$114

Used

$70

MSRP New (Amazon) Used (eBay)

Comparison of Casio G-Shock GA-2100, Casio G-Shock GA-700
Specification	Casio G-Shock GA-2100	Casio G-Shock GA-700
Pricing
MSRP	$120	$110
New Price	$118	$114
Used Price (Low)	$91	$70
Used Price (High)	$686	$237
30-Day Trend	↓ -23.1%	↓ -21.1%
Used Price Range	$91 - $686	$70 - $237
Identity
Reference	GA-2100-1A1	GA-700-1B
Nickname	N/A	N/A
Style	Ana-Digi, Sports, Tool	Sports, Tool
Release Era	2010s	2000s
Dimensions
Diameter	45.4mm	53mm
Thickness	11.8mm	N/A
Lug Width	22mm	N/A
Lug to Lug	47mm	N/A
Movement
Movement	Quartz	Quartz
Power Reserve / Battery	N/A	N/A
Accuracy	N/A	N/A
Case
Case Material	Resin	Resin
Crystal	Mineral Crystal	Mineral Crystal
Water Resistance	200m (diving)	200m (diving)
Bezel	Fixed	Fixed
Dial
Dial Color	Black	Black
Luminous	Yes	Yes
Community
Review Rating	N/A	N/A
In Collections	N/A	N/A
On Wishlists	N/A	N/A
Forum Threads	N/A	N/A

Quick Summary

Casio G-Shock GA-2100 and Casio G-Shock GA-700 can look close on a spec sheet, yet the tradeoffs that matter most are usually wrist presence versus easier fit, ana-digi character versus sports versatility. They both touch the sports and tool use case, so smaller spec differences can matter more than brand preference.

How to choose

The biggest practical difference is usually movement and upkeep. Start with wrist fit and movement preference, then use water resistance and price to break the tie.

Casio G-Shock GA-2100

Casio G-Shock GA-2100 is a better fit for smaller wrists, low-maintenance daily wear, ana-digi styling.

Casio G-Shock GA-700

Casio G-Shock GA-700 is a better fit for buyers who want more wrist presence, low-maintenance daily wear, sports styling.

Key Differences

Movement and upkeep

Casio G-Shock GA-2100: quartz movement

Casio G-Shock GA-700: quartz movement

Both use the same movement type, so maintenance differences are limited and fit or feature details should decide the purchase.

Size and wearability

Casio G-Shock GA-2100: 45.4mm · L2L 47mm

Casio G-Shock GA-700: 53mm

Fit is a real separator here — compare case width and lug-to-lug before deciding, especially if wrist comfort matters more than headline features.

Water resistance

Casio G-Shock GA-2100: 200m

Casio G-Shock GA-700: 200m

Water resistance is similar on paper, so focus on fit, features, and price instead.

Price and value

Casio G-Shock GA-2100: $118

Casio G-Shock GA-700: $114

These two often land in a similar price band — which usually means fit, features, and current deal quality matter more than the sticker price.

Style and use case

Casio G-Shock GA-2100: ana-digi

Casio G-Shock GA-700: sports

Casio G-Shock GA-2100 leans more ana-digi, while Casio G-Shock GA-700 pulls toward sports use case — pick the one that matches how you will actually wear it.

Crystal and materials

Casio G-Shock GA-2100: mineral crystal · resin

Casio G-Shock GA-700: mineral crystal · resin

Materials are broadly similar, so finish, fit, and price will matter more than the materials list alone.

Choose Casio G-Shock GA-2100 If...

You want a smaller case footprint on the wrist.
You are specifically shopping for a ana-digi style watch.

Choose Casio G-Shock GA-700 If...

You prefer more dial presence and a larger case feel.
You are specifically shopping for a sports style watch.

Price and Value Notes

Casio G-Shock GA-700 usually offers the lower entry price — confirm current listings because marketplace pricing can move quickly.

These two often land in a similar price band — which usually means fit, features, and current deal quality matter more than the sticker price.

Where to Check Deals

Check current deals on Amazon and eBay using the buttons below — listing prices, seller quality, and condition can change quickly.

Check current deals on Amazon and eBay

Prices change often, so compare the latest listings and condition options before you buy.

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Casio G-Shock GA-2100

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $108 · Live listings

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Casio G-Shock GA-700

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $78 · Live listings

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Comparison FAQ

Which one is better for smaller wrists?

Start with case width and lug-to-lug. The watch that looks smaller on paper is often the safer choice, but lug shape and thickness still affect how it wears.

Which is better for swimming or rough daily wear?

Use the water resistance row as the first filter. Higher ratings generally give more flexibility for swimming and water exposure, but strap choice and overall condition still matter.

Should I choose based on price alone?

Price matters, but the better buy is the watch that matches your fit, feature priorities, and use case. Check live listings first, then decide whether the price gap actually changes the ownership experience.