Casio PRO TREK WSD-F30 Android WearOS smartwatch review

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Casio ProTrek WSDF30 1

REVIEW – Casio manufactures a wide range of electronic goods, from calculators to musical instruments. But I would argue, Casio is best known for their wrist watches…particularly their G-SHOCK line. For decades the G-SHOCK has been one of the goto watches for rugged dependability. A watch engineered to survive a march thru hell and back without batting an eye. Well, this review isn’t about any of Casio’s G-SHOCKs but on their PRO TREK WSD-F30, a modern smartwatch with much of the G-SHOCK’s DNA which is apparent the moment you lay eyes on it.

I am not going to be diving into WearOS in detail other than how well it works operating on this watch. Like the Apple Watch OS, Android’s WearOS is a pretty well-known quantity these days. That said, my focus will be on the watch hardware and noteworthy features this smartwatch brings to the table.

Casio ProTrek WSDF30

What is it?

The PRO TREK WSD-F30 is Casio’s latest flagship GPS enabled smartwatch engineered for the outdoor enthusiast. The PRO TREK WSD-F30 runs on Android’s smartwatch WearOS software, has a built-in compass/mapping/navigation/barometer/altimeter, and is hardened to MIL-STD-810G (United States military standard) survivability specifications.

Casio ProTrek WSDF30 contents

What’s in the box?

  • Casio Pro Trek WSD-F30 smartwatch
  • USB charging cord
  • Power plug

Hardware specs

  • Charging time: Approximately 3 hours at room temperature
  • Bluetooth: Bluetooth® 4.1 (Low Energy support)
  • Wi-Fi: IEEE802.11b/g/n
  • Memory & storage: 768 MB RAM, 4 GB internal storage
  • Charging method: Magnetic crimped charging terminal
  • Measuring unit: 1 degree
  • 5-bar (50-meter) water resistant
  • Environment performance: MIL-STD-810G (United States military standard issued by the U.S. Department of Defense)
  • Sensors: GPS, Pressure sensor, Accelerometer, Gyrometer, Magnetic sensor
  • INPUT: AC 100 V to 240 V 50 Hz/60 Hz
  • OUTPUT: 5.0 V
  • Charger cable: Length: Approximately 0.75 m (2.46 ft) Type: AC adaptor USB Type A
  • Operating temperature: -10℃ to 40℃ (14℉ to 104℉)
  • Crystal: Mineral glass (dirt resistant coating)
  • Approx. Size (Body H × W × D): 60.5 × 53.8 × 14.9 mm (2.4” × 2.1” × 0.6”)
  • Approx. Weight (including band): 83 g (2.9 oz)
  • Included accessories: Charger (AC adaptor), Special charger cable

TOOL Apps:

  • Measurement range: 0° to 359°
  • Measurement unit: 1°
  • Continuous measurement duration: 1 minute
  • North Indication hand, Magnetic declination calibration, Bearing memory, Gradient calibration
  • Measurement range: –700 to 10,000 m (–2,300 to 32,800 ft)
  • Measurement unit: 1 m (5 ft)
  • Measurement accuracy: within ±75 m (within ±250 ft) (When frequent manual calibration is performed)
  • Shortest measurement interval: 1 minute
  • Altitude graph: Past 24 hours
  • Manual altitude calibration, Auto altitude calibration using location information*2*3
  • Measurement range: 260 to 1,100 hPa (7.6 to 32.5 inHg) Measurement unit: 1 hPa (0.1 inHg) Measurement accuracy: within ±3 hPa (within ±0.1 inHg)
  • Atmospheric pressure tendency graph: Past 24 hours
  • Barometric pressure measurement interval: 1 minute
  • Manual barometric pressure calibration
Tide and Fishing:
  • Tide graph: Past 12 hours + Next 12 hours
  • Fishing time (Calculated according to current location, and moon hour angle and age.)
  • Sunrise/sunset: Sunrise/Sunset times (Current location sunrise/sunset) Sunrise/Sunset directions: Accuracy depends on compass

Casio ProTrek WSDF30 2


As I mentioned, the PRO TREK WSD-F30 is Casio’s latest and greatest Android WearOS smartwatch engineered for the great outdoors. The F30 is Casio’s third generation flagship in the PRO TREK line. And even though this watch is massive and hardened against the elements, it does have a well thought out and refined design to it. The watch takes many design queues from the G-SHOCK line and is built to survive many epic adventures.

Casio ProTrek WSDF30 bezel

The fixed bezel is thick and raised well about the face of the watch to protect the WSD-F30’s screen from impacts. The capacitive touchscreen has a mineral glass exterior layer with a dirt resistant coating. Shame Casio did not use a sapphire crystal instead for added durability, strength, and scratch resistance.

Casio ProTrek WSDF30 right

The case is well made from metal and hard plastic. The build quality is good but the design of this watch is much more about ruggedness than polish and finish…definitely a tool watch. The right side of the F30 has the main physical controls (aka the buttons 😉 ). The buttons are large and easy to find and press. The upper (mapping) and lower (tools app) buttons have a nice knurled pattern with the center button having more of a bulls-eyed pattern. The buttons work fine but are a bit squishy when pressed vs having a definitive click to them.

Casio ProTrek WSDF30 left

The left side of the watch has the magnetic crimped charging terminal and atmospheric/magnetic sensors. To add to the F30’s rugged good looks, Casio uses stainless steel hexbolts and screws to hold the smartwatch together.

Casio ProTrek WSDF30 charging1

Here you can see the proprietary charging cable and magnetic crimped charging terminal.

Casio ProTrek WSDF30 charging2

The charging system works well though the cable does have a habit of popping off too easily. The back of the case is a large stainless steel plate held on by six screws.

Casio ProTrek WSDF30 screens

The WSD-F30 has a dual-layer OLED/monochrome display. The monochrome display shows the time, power level, and either the day/date and your step count or sensor information (altitude, barometric pressure, and compass heading) while saving power by turning off the full color display. The 390 × 390 pixels OLED layer provides a vibrant viewing experience when using apps. The touchscreen’s clarity and responsiveness is excellent.

Casio ProTrek WSDF30 screens2

Outdoor Features

Casio includes a handful of very outdoor-centric functions on this smartwatch including: digital compass, mapping & navigation, altimeter, and barometer telemetry. And even though this watch can provide you your notifications, music, current news, etc…one of its main missions is help you navigate and survive when you’re getting back to nature, escaping the modern world. Even though the screen is pretty small, the mapping and navigation capabilities of the F30 are impressive with the ability to download offline maps, preset routes, and waypoints, backtrack, etc. Barometric pressure data lets you know of a potential change in the weather. And the usefulness of the compass and altimeter when you’re lost in the middle of nowhere are pretty obvious.

Just one thing is missing…

I would say the most glaring omission on the PRO TREK F30 is the lack of a built-in heart-rate sensor. For being such a get out and get moving, outdoor and explore smartwatch not having an HR sensor could definitely cause the fitness crowd to pause when considering the F30 as their next wearable purchase. With the likes of Apple, Polar and many others doubling down on accurate, always monitoring fitness, I think Casio probably should have added this function by the third generation of this watch. That said, the F30 does count your steps, monitor activities, and does include Google’s and other various fitness apps.


The Casio WSD-F30 is compatible with both Android and iOS devices. Setting up the F30 with my iPhone was quick and easy. Since I already had my Google WearOS app setup, getting the F30 talking to my iPhone didn’t take long at all. The app configures all my preferences, info, and music nearly seamlessly, though music transfer did take a bit of time.


Overall the performance of the WSD-F30 is surprisingly good. I have tried/reviewed more than my fair share of smartwatches and most, if not all, of the WearOS devices fell well short in the performance category (especially compared to the Apple Watch). The F30 is relatively responsive with less lag than previous WearOS devices, apps don’t crash, and the special features/tools actually work as advertised.

Casio ProTrek WSDF30 wrist1

With its dual-layer display technology you can get one to two days of use out of the PRO TREK before needing to recharge it…pretty standard for today’s smartwatches. The F30 has an Extended Mode for when you don’t have power and need to stretch battery life for many days. Extended Mode does limit functionality but can be switched off when need be.

Comfort & Wearability

Even though the F30 is smaller than its predecessors, this watch is HUGE. The width is 54 mm with a lug-to-lug wingspan distance of over 60 mm. I typically wear 38 – 40 mm diameter watches with a lug-to-lug distance under 50 mm, so this watch does feel large and a bit cumbersome. Here you can see the watch on my 7 inch wrist and the lugs overhang the sides of my wrist. The F30’s dual layer display measures 1.2 inches with much of the watch’s overall diameter coming from the thick bezel.

Casio ProTrek WSDF30 thickness

The WSD-F30 is pretty thick as well. The watch sits 14.9 mm high on the wrist and does occasionally bump into things while moving through the world. Though at 83 g / 2.9 oz, the WSD-F30 feels light on the wrist especially when you consider its overall dimensions.

Casio ProTrek WSDF30 sizedcompared

Here you can see the WSD-F30 compared to the 42mm Apple Watch, Polar Vantage V Pro, and Mobvoi TicWatch S2. The PRO TREK wears bigger than the other three though it is pretty comparable to the TicWatch in size.

Casio ProTrek WSDF30 wristband1

The band is made from a black plasticky rubber material with a carbon fiber-like look on the exterior. The watchband is OK, definitely not my favorite, feeling more like plastic than rubber. The band wears fine but not nearly as comfortable as my Everest or RubberB watchbands or even the bands of my Apple and Polar watches.

Casio ProTrek WSDF30 wristband2

The F30’s watch band has many notches for a precise/better fit as your wrist expands and constricts due to weather conditions and effort level.

Casio ProTrek WSDF30 quickchange

A nice feature of the WSD-F30 band is that Casio uses a quick release spring bar system for easy tool-free removal/swapping of the wristband. Funny thing is, the tiny quick release slider is recessed into the band and after a minute or two I gave up trying to make it work with my fingernail. My spring bar tool made quick work of getting the band on & off of the watch. But in reality, if your fingernail wasn’t working a paperclip or toothpick would work just as well.

What I like

  • Well made rugged design
  • Solid build and material quality
  • Created for the outdoor enthusiast
  • Pretty responsive for an Android WearOS smartwatch
  • Feature rich
  • Offline navigation and compass
  • Good dual layer screen design
  • Decent battery life

What I’d change

  • Make it smaller
  • Lower the price
  • Watchband is too plasticky
  • Include a heart-rate sensor
  • Charging plug disconnects easily

Casio ProTrek WSDF30 colors

In addition to the orange-red color I received, the PRO TREK WSD-F30 is also available in blue and black.

Casio ProTrek WSDF30 outdoors

Final thoughts

Even though it is not perfect, I really like the PRO TREK WSD-F30 smartwatch. It is unapologetically big, bold, and engineered to weather whatever Mother Nature throws at it. Casio has done a good job combining the latest wearable technology and navigation/survival tools into a rugged, mil-spec watch. This smartwatch provides the outdoor enthusiast tools to get around the middle or nowhere with confidence. It would have been nice if the F30 had a built-in heart rate sensor but if I had to choose, I’d rather have a map and a compass than know my calories burned when lost out in the woods.

One more thing: the Gadgeteer Kid is heading off to college soon and will be attending the Colorado School of Mines, located in Golden. Along with studying engineering, he plans on embracing all that Colorado has to offer: skiing, hiking, rafting, etc. while he’s there. I can’t think of a better tech-tool to hand him as he walks out the door and heads off to God’s country.

Price: $549.99
Where to buy: Amazon or directly from
Source: The sample of this product was provided by Casio.

4 thoughts on “Casio PRO TREK WSD-F30 Android WearOS smartwatch review”

  1. Gadgeteer Comment Policy - Please read before commenting
  2. I have a Ticwatch Pro. The dual layer screen is groundbreaking and absolutely should be on as many watches as humanly possible. IMO you didn’t emphasize how thoroughly awesome this feature is. Being able to see the time without turning on the OLED screen massively extends the battery life. Also $550 and no heart rate monitor? Ouch.

  3. I have had this watch for 3 months now. It’s connected to my Google Pixel 2.
    Over all I live the watch and quality. It’s my first smartwatch so perhaps my expectations are too high. I can not agree with the authors comments on performance. Often I find the watch unusable because it’s so slow.
    I also find the connection drops contantly with my phone within 1 meter.
    I would not consider one again until I read the apps are solidly fast and responsive.

    1. Hi Ross,

      Yes, I agree the performance of the F30 could be better. My point was more that it’s the most responsive Android wearable I have tried so far. Plus apps didn’t crash nearly as much as on other devices. Apple watches continue to be miles ahead of the smart watch pack.


  4. Nice review. I am always on the lookout for the next outdoors fitness type watch. Right now I have a Garmin Fenix 5s. Being a female, one of the main issues I find with these watches is that they are HUGE! The 5s is finally in a smaller size that does not make feel like I am wearing a huge lump on my tiny wrist. I am anxiously awaiting the next version of the Fenix lineup, hoping that they will offer full cell connectivity to the watch so I would not even have to carry a phone like the Apple watch. I personally have not found a better watch to track all of my various fitness activities, and it does have an HR monitor.

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