Fishing Watches With Tide Graphs (2026)

A tide watch tells you which way the water is moving at a glance, so you know whether the flat is filling or draining before you pick a spot. The two kinds work very differently: a Casio tide graph estimates the tide from the moon and one number you enter, while a Garmin pulls predictions for a real tide station through your phone.

How we chose: we did not test these watches. Features come from Casio's and Garmin's own pages and manuals, and every pick was sold by Amazon.com and in stock on October 1, 2026. Many watch listings on Amazon come from third-party resellers that may not carry the maker's warranty, so we left those models out, including every tide-graph G-Shock we found.

Five tide and fishing watches side by side

Prices are Amazon's, as of the time shown, and subject to change. Details

*Garmin's solar figure assumes all-day wear with 3 hours a day outside in 50,000 lux conditions. Battery figures are smartwatch mode, from Garmin's Instinct 3 Solar Tactical specs and its Instinct E page.

How a Casio tide graph works, and how to set your port

Casio's WS-1700H manual explains it plainly. The graph "indicates tidal movement based on the Moon's transit over a meridian and the lunitidal interval," shown as six segments from low tide through high tide and back.

The lunitidal interval is the time between the moon passing over your longitude and the next high tide there. It differs by place, so the watch needs three Home Site settings: UTC offset, longitude and lunitidal interval. Out of the box it is set to Tokyo, and Casio says the moon and tide data "will not be displayed properly" until you change it.

The manual's site list gives U.S. examples you can enter directly: Boston 11 h 20 min, Miami 7 h 30 min, Los Angeles 9 h 20 min, Seattle 4 h 20 min, Honolulu 3 h 40 min and Anchorage 5 h 40 min. Your own inlet or bay can differ from the nearest city, and Casio warns the moon age itself can be off by a day.

Key point: Casio is blunt about the limits. The watch "is not an instrument for calculating low tide and high tide times," and its graph gives "a reasonable approximation of tidal movements only." Use it to know roughly where you are in the cycle, not to time a bar crossing.

How a Garmin gets tide times

Garmin's watches take the other route. Per the Instinct 3 owner's manual, "when you pair your watch with a compatible phone, you can view information about a tide station, including the tide height and when the next high and low tides will occur."

Setting your spot means picking a station, not entering numbers: use your current location when you are near a station, a saved location or typed coordinates. The watch then shows a 24-hour tide chart, you can mark a favorite station for the tide glance, and you can set an alert before high or low tide. Garmin adds that its tide information "is for information purposes only."

The Instinct E lists the same Tides app and tide glance in Garmin's specs, without solar charging. The quatix 8 adds "alarms for imminent tide changes or anchor drag," per its listing, and talks to compatible Garmin chartplotters.

Predictions are not the water you'll see

Every watch here shows a forecast. NOAA's Tides and Currents FAQ says it can "only predict the astronomical tides" and "cannot predict the effect that wind, rain, freshwater runoff, and other short-term meteorological events will have on the tides." A strong onshore wind can hold water on a flat long after the predicted low.

Water ratings: what 100 m and 10 ATM cover

Neither Casio here is a dive watch. Casio's WS-1700H manual says not to use it for scuba diving, and to rinse off salt with plain water after a dip in the sea.

Garmin's water rating definitions put 10 ATM at pressure equal to 100 meters, fine for "swimming, diving into water, snorkeling, high-speed water sports." Only a "Dive" rating, tested to EN13319, covers scuba. Our dive watch water resistance guide explains the labels.

Which kind to buy

A Casio tide graph suits you if you fish one home area, want a watch that runs a decade on a coin cell, and treat the graph as a reminder of where the cycle is. The WS-1200H drops the graph for a five-level fishing-time rating; Casio does not say how it works it out.

A Garmin suits you if you move between inlets, want station times, or want an alert before the turn. The Instinct 3 Solar Tactical was the solar Instinct Amazon.com itself sold when we checked; the plain Instinct 3 Solar came from a reseller.

Tide-graph G-Shocks such as the solar GW-7900 (200-meter water resistance, tide and moon graphs, per Casio) were only on Amazon from resellers on October 1, 2026. Our G-Shock vs Garmin Instinct comparison covers them.

We found no CPSC recall for Casio or Garmin watches in our recall tracker.

Related: boat and gear wash, handheld VHF radios.

Frequently Asked Questions

Does a tide watch replace a tide table?

No. Casio says its graph is an approximation, and Garmin calls its tide data information only. Check NOAA's predictions for your station before running a shallow inlet or crossing a bar.

Does the Garmin Tides app work without my phone?

Garmin's manual ties tide station data to a paired compatible phone. Once you have set a favorite station, it shows at the top of the Tides app and in the tide glance.

What happens to the Casio settings when the battery is changed?

Casio's manual says the Home Site data returns to the Tokyo default whenever the battery is replaced, so re-enter your UTC offset, longitude and lunitidal interval afterward.

Why is there no G-Shock on this list?

Every tide-graph G-Shock we found on Amazon on October 1, 2026 was sold by a third-party reseller, not Amazon.com or a Casio store, so we link only Casio's own pages for those models.

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SaltProofLab is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Features are quoted from Casio's and Garmin's product pages and manuals.