Official WSD-F20 Series Description. Powered by Wear OS by Google, WSD-F20 comes equipped with a variety of features ideal for adventure, including GPS, Location Memory, Moment Setter, and more. Packed with Casio’s Triple Sensor technology, dual-layer LCD and water resistance, PRO TREK Smart is the rugged, stylish and versatile timepiece to enhance any outdoor experience.
Enjoy Japanese approaches to Travel and Functional ProTrek Watches!
ProTrek Philosophy.
Every adventure needs a reliable partner. PRO TREK is exactly the kind of watch that you need to meet the demands of your interests. PRO TREK is equipped with functions such as solar power operation, a digital compass, an altimeter, a barometer and a thermometer. The combination of innovative technology, a robust precision movement and state-of-the-art design makes the PRO TREK the perfect companion for all adventures under the open sky. Mountain or valley? Forest or meadow? River or lake? No matter what awaits you, you will be well-prepared to make any rough terrain your own thanks to the PRO TREK.
Experience for yourself how PRO TREK opens up new horizons while always pointing you in the right direction!
Triple Sensor. PRO TREK watches are equipped with the latest Triple Sensor, version 3 technology, making them even more accurate than before. Three highly sensitive, extremely small sensors measure with absolute precision and instantly display changes in your environment. The precision of the digital compass, altimeter, barometer and thermometer is only possible with the Triple Sensor technology. At the same time, the three layer sensor is 95% smaller and consumes 90% less energy than before.
Altimeter. For all those who set their sights high
The built-in altimeter uses a pressure sensor to measure the current air pressure.
The measured air pressure is then used to provide an “estimate” of the current altitude.
The electronic mechanism in the watch is pre-programmed with “ISA values” (“International Standard Atmosphere”) used to convert pressure values into altitude values.
The air pressure and temperature generally become lower as the altitude increases.
These values define the connection between altitude, air pressure and temperature.
Barometer. The barometer measures the air pressures and displays tendencies in the weather.
The higher a person goes (ascent/terrain), the lower the barometric pressure will be.
An increase in air pressure usually signifies an improvement in the weather.
A decrease in air pressure usually means that bad weather is on its way.
The air pressure is displayed with an accuracy of 1 hPa (hectopascals).
The barometer can measure and display a range from 260 hPa to 1100 hPa.
Digital Compass.
The PRO TREK digital compass shows 16 compass points. The direction of magnetic north and the bearing are calculated by the compass’s directional sensor The directional sensor consists of two rectangular coils that detect slight tensions created by the earth’s magnetic field. Depending on the position and direction, these tensions vary in intensity. There is a non-magnetic resistance between the two coils, which absorbs the subtle changes in tension. With each new position, the values that are measured by the resistance change. A microprocessor converts the measurements so that they can be displayed clearly on your watch.
Thermometer. The thermometer is used to measure the outside temperature.
The temperature is displayed with an accuracy of 0.1 °C.
The thermometer can measure and display a range from -10.0°C to 60.0°C.
MOON PHASE DISPLAY.
The moon moves through a regular 29.53 day cycle, during which it appears to become either smaller or larger due to the relative position between the earth, moon and sun. The larger the angle distance between the moon and the sun*, the more of the moon we see illuminated.n Europe, the change from summer to winter time is also completely automatic.
TIDE GRAPH DISPLAY.
The tides refer to the periodic rise and fall of water in oceans, seas, bays and other bodies of water. This is caused mainly by the gravitation between earth, the moon and the sun. The tides rise and fall approximately every six hours.
Always be aware of the tidal patterns.
The watch can show the low and high tide phases for any given location or date. This can be quite useful, for example if you want to know the patterns of the tides at your destination in advance.
General Information
| Price | 210$ *average Amazon Price, we may earn commission from purchases |
| Year of First Release | 2018 |
| Model Range | SMART |
| Battery Type | Lithium-ion battery (ProTrek Batteries) |
| Manual | WSD-F20 (official) |
Feedback from users *accumulated information from our own comments and emails, forum threads, socials, reviews, etc.
PROs
+ is amazing, esp if you use Google products/apps. (It integrates with these (for texts, emails, etc))
+ if you are into hiking/camping/bicycling/kayaking, etc – there are some great apps to help you and track your progress
+ the GPS feature really sets this watch apart (you can tell where you are in the WORLD at ANY time)
+ it tracks fitness activities better than a GearFit or Fitbit
+ this smartwatch is rugged and waterproof, a reflection of its auspicious G-Shock heritage
CONs
– the battery does not last more than about 12-14 hours
WSD-F20 Model Range *may be updated
The most distinctive specs of WSD-F20 *Editorial
— 50-meter water resistance (This watch can be worn when showering and bathing – it is tested for water resistance up to 5 bar according to ISO 22810)
— Wear OS by Google™ (To connect the CASIO watch to a smartphone, the Wear OS by Google operating system must be installed on the device)
— 4 GB internal memory (Large memory offers sufficient space for additional apps)
— GPS function (Measures your current position using artificial satellites circling the globe)
— Wi-Fi (IEEE 802.11 b/g/n (If Wi-Fi is enabled on your watch, it will automatically establish a connection to a known, available Wi-Fi network (if the watch is not connected to your smartphone via Bluetooth®)
— Bluetooth® Smart (The watch is equipped with energy-saving Bluetooth® technology, which offers power-saving data transfer at the push of a button)
— Mobile link (Wireless linking using Bluetooth(R)) (for time sync with your phone data)
— MIL-STD-810G compliant (The MIL-STD-810 is a U.S. military technical standard that specifies environmental test conditions for military equipment)
— Double LCD – 320 x 300 (The display consists of two overlapping, independent LCDs. The monochrome display provides an excellent level of readability, even in difficult lighting conditions)
— Touchscreen (The watch is equipped with a touchscreen, which allows a wide range of functions to be adjusted quickly and intuitively using familiar touchscreen controls.)
— Fishing Timer (Know when they are biting. The watch displays a fish symbol when it is the perfect time for fishing)
— Digital compass (measures and displays direction as one of 16 points)
— Thermometer (can measure and display the outside temperature in a range from -10 C to 60 C)
— Barometer (measures the air pressures and displays tendencies in the weather)
— Altimeter (The electronic mechanism “estimates” the altitude based on the air pressure)
— Moon Data (The moon phase indicator shows the current moon phase based to the earth)
— Tide indicator (Once the high tide time has been entered for a selected location, the watch can display the low and high tide phases at this location on any given date)
— Gyrometer (The gyro sensor shows you every little change in direction during navigation, ensuring you always reach your destination)
— Acceleration sensor (The motion sensor responds to acceleration and shows this as a speed on the display. The sensor also supports the auto rotation function of the watch, ensuring that the image is always displayed the right way up on the display)
— Microphone (Make your daily life easier using practical voice commands spoken directly into the microphone on your watch)
Official WSD-F20 Video
Other ProTrek WSD Watches *similar by price and functions but different by cases
These are not all ProTrek WSD Series. Here is a list of All ProTrek WSD Watches →
ProTrek WSD-F20 on the wrist!
Official WSD-F20 Specs / Features *for base version WSD-F20-RG
- Wear OS by Google™
To connect the CASIO watch to a smartphone, the Wear OS by Google operating system must be installed on the device. Wear OS by Google offers a variety of pre-installed apps for outdoor activities. Additional compatible apps can be installed on the watch from the Google Play Store if desired. - 4 GB internal memory
Large memory offers sufficient space for additional apps. - 512 MB RAM
512 MB of RAM available. - Wi-Fi (IEEE 802.11 b/g/n)
If Wi-Fi is enabled on your watch, it will automatically establish a connection to a known, available Wi-Fi network (if the watch is not connected to your smartphone via Bluetooth®). - Bluetooth® Smart
The watch is equipped with energy-saving Bluetooth® technology, which offers power-saving data transfer at the push of a button. The watch can connect to a smartphone wirelessly via Bluetooth®, enabling access to a wide range of useful functions. - Smartphone time
Local time will automatically be adjusted whenever the watch is connected with a smartphone. - Super Illuminator
At the touch of a button, the display can be brightly illuminated in a fashionable color - MIL-STD-810G compliant
The MIL-STD-810 is a U.S. military technical standard that specifies environmental test conditions for military equipment. The standard defines tests for the compatibility of equipment and devices with extreme temperatures and air pressures, solar radiation, humidity, chemicals, acceleration forces and vibrations. - Double LCD (320 x 300)
The display consists of two overlapping, independent LCDs. The monochrome display provides an excellent level of readability, even in difficult lighting conditions. The colour display can show graphical or colourful measured data in an optimal way and provides a clear overview of the content. - Touchscreen
The watch is equipped with a touchscreen, which allows a wide range of functions to be adjusted quickly and intuitively using familiar touchscreen controls. - Sunrise/sunset display
After entering the geographical location, sunrise and sunset times can be displayed for any given date. - Fishing Timer
Know when they are biting. The watch displays a fish symbol when it is the perfect time for fishing. - Barometer (260 / 1.100 hPa)
A special sensor measures the air pressure (measuring range: 260 / 1100 hPa) and presents this on the display in the form of a symbol. This enables early detection of weather trends. - Digital-compass
A built-in direction sensor detecs the magnetic north. - 10,000 m Altimeter
A pressure sensor detects changes in the air pressure and converts the result into an altitude up to 10,000 m. - Altimeter data memory
Depending on the model, up to 40 sets of elevation data can be stored in the watch’s data memory and re-accessed at any time. Each of these data sets consists of a measured altitude as well as the date and time. In addition to the individual altitudes, the maximum and minimum altitudes during a measurement are also stored. - Moon Phase Indicator
The moon phase indicator shows the current moon phase based to the earth - Tide indicator
Once the high tide time has been entered for a selected location, the watch can display the low and high tide phases at this location on any given date. This can be quite useful, for example, if you want to know the patterns of the tides at your destination in advance. - Gyrometer
Ideal for outdoor activities: The gyro sensor shows you every little change in direction during navigation, ensuring you always reach your destination. The sensor detects the smallest movements of the watch and acts against this by supporting optical image stabilisation or the alignment of the display. - Acceleration sensor
The motion sensor responds to acceleration and shows this as a speed on the display. The sensor also supports the auto rotation function of the watch, ensuring that the image is always displayed the right way up on the display. - GPS function
Measures your current position using artificial satellites circling the globe. - World time function
Displays the current time in major cities and specific areas around the world. - Vibration alert
The vibration alarm discreetly reminds you of important appointments, without emitting a loud signal. - Airplane Mode (Offline Mode)
At the touch of a button, the watch switches to offline mode. This means that you can disable the wireless or GPS receiver when in the air for the duration of the flight. - Microphone
Make your daily life easier using practical voice commands spoken directly into the microphone on your watch. For example, you can start a Google search by saying “OK Google” — without the need to touch the display, or even take your smartphone out of your pocket. Many actions can be performed via the microphone using voice commands. - Mineral glass
The tough mineral glass resists scratching. - Resin case
- Resin band
Synthetic resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties. - Battery level indicator
An indicator shows the current battery level. - Water resistance classification (5 bar)
This watch can be worn when showering and bathing – it is tested for water resistance up to 5 bar according to ISO 22810. - Dimensions (H x W x D)
61,7mm x 57,7mm x 15,3mm - Weight
approx. 90 g
WSD-F20 Comparison Table with similar ProTrek Watches
WSD-F20 | |||
Price (Amazon) | |||
Year of first Release | 2019 | 2018 | |
Accuracy | Bluetooth (via phone app) | Bluetooth (via phone app) | Bluetooth (via phone app) |
SmartWatch Features | Bluetooth® Smart, Wear OS by Google™ | Bluetooth® Smart, Wear OS by Google™ | Bluetooth® Smart, Wear OS by Google™ |
Display | 1.32-inch, dual layer display | 1.2-inch dual layer display | 1.32-inch dual layer display |
Heart Rate Measurement | Yes | No | No |
GPS | Compatible (including GLONASS and MICHIBIKI (QZSS)) | Compatible (including GPS, GLONASS and Michibiki) | Compatible (including GLONASS and Michibiki) |
Water Resistance | 5 bar (50 meters) | 5 bar (50 meters) | 50 meters |
Microphone | Yes | Yes | Yes |
Case / bezel material | Resin | Resin | Resin |
Glass | Mineral Glass | Mineral glass | Mineral Glass |
Battery life | Normal use (Color display auto OFF*3)：Up to 1.5 days | Normal use (color display): 1.5 day, roughly | Normal use (color display): 1 day, roughly |
Size (mm) *we consider 48.9×42.8×13.4 to be a traditional watch size (as in DW-5600). So you are to compare how far or close the watch is to this size | 61,7×57,7×16,8mm | 60,5×53,8×14,9mm | 61,7×57,7×15,3mm |
Full features (if you want to know more) |
Recent News about WSD-F20
You ask, we answer…
It’s wireless linking using Bluetooth(R) (for time sync with your phone data).
It measures and displays direction as one of 16 points.
It’s the electronic mechanism that “estimates” the altitude based on the air pressure.
It measures the air pressures and displays tendencies in the weather.
The gyro sensor shows you every little change in direction during navigation, ensuring you always reach your destination.
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