Casio G-Shock GMA-S2100 (small) vs Casio G-Shock GW-M5610-1

Side-by-side comparison of specifications and features

CasioG-Shock

GMA-S2100 (small)

CasioG-Shock

GW-M5610-1

Key Differences

Best Value

Casio G-Shock (Ref. GMA-S2100 (small))

Starting from $124

Biggest Price Drop

Casio G-Shock (GW-M5610-1)

-5.9% in 30 days

Price Comparison

Casio G-Shock

MSRP

$150

New

$124

Used

$107

Casio G-Shock

MSRP

$165

New

$260

Used

$87

MSRP New (Amazon) Used (eBay)

Comparison of Casio G-Shock, Casio G-Shock
Specification	Casio G-Shock	Casio G-Shock
Pricing
MSRP	$150	$165
New Price	$124	$260
Used Price (Low)	$107	$87
Used Price (High)	$866	$274
30-Day Trend	↑ +6.6%	↓ -5.9%
Used Price Range	$107 - $866	$87 - $274
Identity
Reference	GMA-S2100 (small)	GW-M5610-1
Nickname	N/A	N/A
Style	Ana-Digi, Sports, Tool	Digital, Tool, Sports
Release Era	1980s	2000s
Dimensions
Diameter	42.9mm	46.7mm
Thickness	N/A	12.7mm
Lug Width	N/A	N/A
Lug to Lug	N/A	46mm
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	LCD
Luminous	Yes	No
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

This Casio G-Shock GMA-S2100 (small) vs Casio G-Shock GW-M5610-1 comparison is less about a universal winner and more about wrist presence versus easier fit, ana-digi character versus digital versatility. Start with fit first — case width and lug-to-lug usually matter more than secondary features if wrist comfort is a concern.

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 GMA-S2100 (small)

Casio G-Shock GMA-S2100 (small) is a better fit for smaller wrists, low-maintenance daily wear, ana-digi styling.

Casio G-Shock GW-M5610-1

Casio G-Shock GW-M5610-1 is a better fit for buyers who want more wrist presence, low-maintenance daily wear, digital styling.

Key Differences

Movement and upkeep

Casio G-Shock GMA-S2100 (small): quartz movement

Casio G-Shock GW-M5610-1: 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 GMA-S2100 (small): 42.9mm

Casio G-Shock GW-M5610-1: 46.7mm · L2L 46mm

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 GMA-S2100 (small): 200m

Casio G-Shock GW-M5610-1: 200m

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

Price and value

Casio G-Shock GMA-S2100 (small): $124

Casio G-Shock GW-M5610-1: $150

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 GMA-S2100 (small): ana-digi

Casio G-Shock GW-M5610-1: digital

Casio G-Shock GMA-S2100 (small) leans more ana-digi, while Casio G-Shock GW-M5610-1 pulls toward digital use case — pick the one that matches how you will actually wear it.

Crystal and materials

Casio G-Shock GMA-S2100 (small): mineral crystal · resin

Casio G-Shock GW-M5610-1: mineral crystal · resin

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

Why These Watches Are Often Compared

Casio G-Shock GMA-S2100 (small) and Casio G-Shock GW-M5610-1 get compared constantly because both are sports/tool watches, they share the same quartz movement, they sit in the same price band — so the spec sheet alone will not tell you which to buy.

The Differences You Will Notice in Daily Use

Casio G-Shock GMA-S2100 (small) is around $124 and Casio G-Shock GW-M5610-1 around $150 — about a $26 gap at typical listings.

Which One Should You Buy

Casio G-Shock GMA-S2100 (small) for most buyers — Casio G-Shock GMA-S2100 (small) is around $124 and Casio G-Shock GW-M5610-1 around $150 — about a $26 gap at typical listings.

Choose Casio G-Shock GMA-S2100 (small) If...

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

Choose Casio G-Shock GW-M5610-1 If...

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

Price and Value Notes

Casio G-Shock GMA-S2100 (small) 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

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $140 · Live listings

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Casio G-Shock

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $150 · Live listings

Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.

Comparison FAQ

Which one is better for smaller wrists?

Casio G-Shock GMA-S2100 (small) — it is 42.9mm wide versus 46.7mm.

Which is better for swimming or rough daily wear?

They are rated the same, so water resistance will not decide this. Choose on strap material and how much you mind scratching the case.

Is the more expensive one worth it?

Casio G-Shock GMA-S2100 (small) is the value pick at roughly $26 less. Pay more only if a specific difference above matters to you — otherwise the cheaper one is the smarter buy. Confirm live listings, since marketplace pricing moves.

What is the actual difference between Casio G-Shock GMA-S2100 (small) and Casio G-Shock GW-M5610-1?

Casio G-Shock GMA-S2100 (small) is around $124 and Casio G-Shock GW-M5610-1 around $150 — about a $26 gap at typical listings. That is the difference you will notice day to day; the rest of the specs are close enough not to matter.

Which one should I buy?

Casio G-Shock GMA-S2100 (small) for most buyers — Casio G-Shock GMA-S2100 (small) is around $124 and Casio G-Shock GW-M5610-1 around $150 — about a $26 gap at typical listings.