The best G-Shock under $100: the tier where a watch costs less than the strap on a Swiss one

What the $100 tier actually is

This is the only price bracket in watches where you are not making a compromise on the thing that matters. Every watch on this page is 200 meters water resistant, shock resistant, resin-cased with a mineral crystal, and built on a module Casio has been selling for years or decades. The expensive G-Shocks add solar, radio time, sensors, carbon, sapphire and Bluetooth — real features — but none of them adds durability to a case that is already this durable.

That is why this page exists on a buy-it-for-life site. A DW-5600 is not a starter watch; it is a watch that has been in production since 1987 and will outlive most of the GPS watches we rank. Whether it beats a field watch for the same money is argued at field watch vs G-Shock.

About the prices on this page

Casio's own US shop does not serve automated readers, so the list prices here come from G-Central, the specialist Casio site whose spec sheets this page is built on and which publishes a list price per model. They were read on the date in the Sources list, and they are here for one reason: to show which watches are genuinely inside the cap this page promises.

The tier is smaller than it used to be. G-Central documented a roughly 10% rise across Casio's entire U.S. catalog in September 2025. Three models are at or under $99.95 today — the DW-5600E and DW-6900 at $99.95 and the DW-9052 at $89.95. The GA-2100 and GMA-S2100 are now $110, the GA-100 and GBD-800 $120, and the cheapest solar G-Shock, the GW-M5610U, is $165. Those all moved to best G-Shock under $200, which is where they belong.

What you actually pay is set by Amazon and moves weekly, which is why every button on this site reads "Check price on Amazon" rather than a number. The classic resin models routinely street well below list — G-Central names these same three as the most affordable G-Shocks, at around $50 or less at large retailers.

The cell is the only real spec difference

With water resistance, shock resistance, case material and crystal identical across the tier, the stated cell life is the spec that actually separates these watches — and the spread is more than two to one:

Five years against two is three battery appointments saved over a decade. That single line is why the DW-5600E wins this page. If a cell swap every few years still sounds like too much, the solar watches are where this tier ends — the GW-M5610U is the same square with Tough Solar and radio time for roughly twice the money and Casio states about ten months of dark running.

Backlight: the underrated decision

Good news: all three watches in this tier have the right kind. The EL backlight on the DW-5600E, the DW-9052 and the DW-6900 lights the entire LCD, so at 3am you press one button and read the whole dial. That is much better than the Double LED on Casio's analog-digital models — the GA-2100 and GA-100, both now above this price cap — which lights the hands and a small digital window separately, and reads worse for it. If you use a watch at night, the sub-$100 tier is accidentally the best-lit part of the catalog.

Size, thickness and weight

Three watches, three very different sizes, and the price does not tell you which. The DW-5600E is 42.8 mm wide, 13.4 mm deep and 52 g; the DW-9052 is 43 mm, 14.7 mm and 59 g; the DW-6900 is 18.7 mm and 67 g in a 53.2 × 50 mm case. The 6900 wears close to twice the watch of the square for the same $99.95. If your wrist is narrow, our best G-Shock for small wrists page has every published measurement side by side.

What you do not get under $100

The decade pick

Four things to check before you add to cart

1. Check the module reference, not just the model. The DW-6900 exists as module 3230 (about two years on a cell) and as the 2023 module 3529 (about five). Same model name, very different ownership.

2. Decide about the backlight now. EL lights the whole dial; Double LED does not. It is the most common regret in this tier.

3. Read the thickness. 13.4 mm and 18.7 mm are both in this bracket at the same $99.95. Look at the numbers rather than the photos.

4. Expect to replace the strap, not the watch. Resin straps are the first thing to go on any G-Shock and every one here takes a cheap replacement. Budgeting $15 for a spare strap does more for the watch's lifespan than anything else you can spend money on.