The best G-Shock watches for men: seven ranked by what Casio actually publishes

The four questions that decide it

Casio's catalog is enormous and most of it is colorways. Strip those out and four questions separate every watch on this page from every other one:

• Does it run on light? Tough Solar means you never charge it and never buy a cell. This is the single biggest difference in long-term ownership and it is why the ranking sorts on it first.
• Does it set itself? Multi-Band 6 receives a radio time signal and corrects the watch to the second. Once you have had it, setting a watch twice a year feels like a chore.
• Are the buttons sealed? Casio's Mud Resist construction puts a physical seal behind each pusher. It matters enormously if your watch meets grit and not at all if it does not.
• What is the crystal? Every G-Shock here is mineral except one. That is the spec that decides how the watch looks in year eight.

Everything else — the sensors, the case material, the weight — follows from those. Nothing on this page is a bad watch; the ranking is about which compromises you are choosing.

Power first, always

Casio does not advertise battery life the way Garmin does. It publishes an approximate battery operating time in each module's operation guide, with the usage assumptions stated, and those figures are the honest basis for a ranking:

Read those dark figures correctly: they are what the watch does in a drawer. Worn outdoors, a Tough Solar G-Shock simply never runs down, and the rechargeable cell inside it is a watchmaker-replaceable part a decade or more out. The coin-cell models are not bad here — a five-year CR2016 is three battery appointments per decade — they just need you to remember. That whole argument is in how long solar watches last.

Mud Resist, and who needs it

This is the spec that separates the Master of G models from the rest of the catalog, and it is worth nothing to a lot of buyers. Casio's Mud Resist and mud-resistant constructions seal behind each button so grit cannot reach the pusher — the failure those watches were designed to solve. If your watch meets concrete dust, mortar, sand, silt or a duck blind, the Rangeman, Mudman and Mudmaster are the answer and nothing else here is. If it meets an office and a gym, you are paying for a seal you will never test, and the work rankings take that question apart properly.

The crystal nobody mentions

Of everything on this page, exactly one watch has a sapphire crystal: the Mudmaster GWG-2000. Every other G-Shock we rank uses mineral glass, and the full-metal GMW-B5000 only gets sapphire on its much more expensive titanium editions. Mineral hazes rather than shatters, and a G-Shock's raised resin bezel keeps most impacts away from the crystal in the first place — which is the design trade Casio made deliberately. But if you want a crystal that still looks new after a decade of doorframes, there is one answer here and it costs accordingly. See sapphire vs Gorilla Glass, and our GMW-B5000 review for why we still rate the steel square so highly with a mineral crystal on it.

Size, and Casio's own numbers

Casio publishes width, height and weight for every module, and the spread on this page is enormous: the DW-5600E is 42.8 mm wide and 52 g; the GA-2100 is 45.4 mm and 11.8 mm thin at 51 g; the Mudman is 81 g; the Rangeman is 53.5 mm wide, 18.2 mm deep and 93 g; the full-metal GMW-B5000 is 167 g. That last figure is not a typo — a steel square weighs more than three times a resin one. If your wrist is under about 6.5 inches, read best G-Shock for small wrists before anything else on this page, because a Rangeman on a narrow wrist is the most common regret in this category.

What each step up actually buys

Usefully, the price ladder in G-Shock maps almost exactly onto those four questions, and G-Central publishes the US list price per model. Around $100 you get the case, the 200 meters and the shock resistance and nothing else — the under-$100 tier. At $165 the GW-M5610U adds Tough Solar and Multi-Band 6, which is the single best-value step in the whole catalog and the subject of best G-Shock under $200. Past that you are buying sensors, sealing, carbon, metal and — once — sapphire.

The decade pick

Buying any of these online is worth two minutes of verification when it arrives, because G-Shock is one of the most counterfeited lines there is: how to spot a fake G-Shock.

How to buy a G-Shock without regret

1. Decide about solar before anything else. It is the difference between owning a watch and maintaining one, and it is worth more than any sensor on the list.

2. Then check the weight. Casio publishes it. 51 g and 167 g are both on this page and they are completely different objects.

3. Only pay for sensors you will use. A compass, altimeter and barometer are genuinely useful hiking and hunting tools and completely dead weight in an office. Be honest about which you are.

4. Buy a spare strap on day one. On every G-Shock here the resin strap fails first and costs almost nothing. It is the cheapest thing you can do to double the watch's service life.

5. Ignore the colorway premium. A limited edition is the same module in a different bezel, which is the whole argument of best G-Shock collabs.