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Purchase Guide: After trying out all CASIO, GARMIN, and EPSON, we found out the best solution for outdoor watches with GPS for each purpose [Part 1]

4. OPERATING AND INTERFACE - Once you get used to the touch panel operation, everything else becomes a hassle

Operating the watch is frequently occurring in outdoor watches where you can not only look at the watch, but also check various information and set functions. Therefore, high operability and simplicity of settings are important.

The first thing that stood out in this respect was the WSD-F20 with the "3 buttons + touch panel LCD". Of the three buttons on the right, the up and down buttons simply call up the main preset functions (by default, various sensor checks and map display), so virtually all operations are only used by the "menu call button" and the touch panel. Of course, this may give a different impression to people who are not used to touch screens, but in these days, there are many people who are used to the smartphone interface, it is sure to make this operation easier.

It's a bit slow if there's no memory left, but the operation is smooth and the touch panel is also very sensitive.

On the other hand the fenix 5x and MZ-500 require a variety of use of five buttons placed on the left and right to invoke and set up many complex functions. In particular, it is difficult to intuitively perform each operation with Garmin, so you must first take your time to "memorize" the names of the functions, the location of the menus, and the respective operations. Personally, I find it difficult to do the quirky operation of "long-pressing the button" at various times. This is just a relative story.

The first hurdle is to get used to the buttons placed on the left and right.

The iconic operation was on the map screen. Let's compare them.

On the left is Garmin's map control. Scroll the map little by little using the middle and bottom left buttons. You can operate the Casio map on the right using either the touch panel or the button, making it much easier to operate.

the WSD-F20 , you can just tap the buttons on the screen (it's not shown in the photo, but the "+" and "-" buttons appear on the screen, and you can zoom in and out by tapping it), or using familiar operations, such as swipe, pinch-in, or pinch-out. the fenix 5x , you can first display the map, but if you want to change the scale of the map, you will need to press and hold the menu button → change scale → change scale using the menu (UP) or DOWN button. Furthermore, if you were thinking of scrolling through the map, press the "upper right button" to change to either left or right or up/down movement mode, then use the UP/DOWN button to move it little by little... I would like the interface to be improved, which will reduce the desire to look at maps.

5. Battery life: Strong EPSON, GARMIN's performance, CASIO is on the passing point~

There are a complete answer on battery life based on specs, but in most cases it is just the theoretical maximum value. What more people would like to know is what it is when you use it in a specific activity.

So this time, we compared three tests of a day hike where we started at a fully charged state at the same time, and repeated battery capacity at the finish line. There was no significant difference in trends in all three sessions, so the table below introduces the results of one of them: "Day-trip climbing at Mt. Tanigawa (around 6 hours of its journey), and frequently displaying maps and other things."

Item nameCASIO PRO TREK Smart WSD-F20GARMIN fenix 5x SapphireEPSON Wristable GPS for Trek MZ-500
Official Specifications7-9 hours (Accuracy priority, positioning per second, auto-off color display) Up to 20 hours (training mode + GPS mode + optical heart rate monitor)Approximately 46 hours (high accuracy mode, GPS per second positioning)
Battery capacity at finish36%63%More than 24 hours available
remarks
  • App used: YAMAP
  • Screen brightness: MAX
  • Airplane mode: OFF
  • Watch Face: 2 Layers
  • Usage mode: Navigation
  • GPS settings: GPS+GLONASS
  • Backlight on time: 8 seconds
  • Backlight level: 100%
  • Bluetooth: ON
  • Optical heart rate monitor: ON
  • Mode of use: Trekking navigation
  • GPS mode: High accuracy
  • Backlight: Auto

The results of a day trip to Mt. Tanigawa. From left, Garmin was 63%, Epson was still close to full, and Casio was 36%.

As for the results, none of these are practical, but in terms of security, the consumption of the MZ-500 the fenix 5x is often done, but the WSD-F20 (however, if it were to turn on airplane mode, it would have been possible to reduce consumption even more).

Roughly speaking, the battery quality is probably proportional to the ease of viewing of the screen and the usability of the UI. Rather than being superior to the battery itself, it is more emphasised on the clarity of the display and high operability, and as a result, the battery life seems to be at a discount.

The only thing I'm not following is to follow, but the WSD-F20 , which consumes the most battery life, has the secret feature that other two models don't have, "can be used while charging*." If you're in a situation where the battery level is really bad, you can just stretch the cord directly from the mobile battery in your pocket to your wrist and charge it. *All models can be charged while measuring, so to be precise, it can be attached to your arm while charging.

With the WSD-F20, you can put a mobile battery in a hip belt pocket, pouch, or sacoche, and then charge your watch while walking.

Of course, the manufacturer does not particularly recommend it. Personally, stretched cords are clunky and can easily get caught, so I don't recommend them under any circumstances. However, it recovers quite a bit after a few minutes of charging, and there are many models of mobile batteries that are very compact even with large capacity, so I think it's actually a good way to use it. Above all, it is important to be able to devise an emergency method when it is really necessary.

Continued to part 2

So far, I've written about the appearance and general usability in the first half of the comparison review. Next time, we will finally take a deeper look at what you can do outdoors such as hiking, as well as the usability of the apps and sensors.

⇒ Go to Part 2 "6. Functionality and What You Can Do, 7. Accuracy"

[Reference] Comparison table for WSD-F20, fenix 5x Sapphire, MZ-500L specs

*Excerpt from the official websites

Item nameCASIO PRO TREK Smart WSD-F20GARMIN fenix 5x SapphireEPSON Wristable GPS for Trek MZ-500L
exterior[Casio] CASIO Smart Outdoor Watch Pro Trek Smart GPS equipped WSD-F20-BK Men'sGARMIN Multi Sports Watch fenix5x Phoenix5x Sapphire Sapphire GPS Watch [Genuine Japanese Product] 010-01733-13[EPSON Wristable GPS for Trek] EPSON Wristable GPS for Trek Running Mountain Climbing GPS 3D Elevation Navigation MZ-500L
Reference price55,080 yen107,784 yen42,984 yen
weightApproximately 92gApproximately 98gApproximately 67g
sizeApprox. 61.7 x 57.7 x 15.3 mm51.0 x 51.0 x 17.5 mmΦ47mm t=17.6mm
Display size1.32 inches1.2 inches 
Display typeInorganic glass/Capacitive touch panel (supports anti-fouling coating)/Two-layer color TFT liquid crystal (320 x 300 pixels) + monochrome liquid crystalSapphire lens/240 x 240 pixels, semi-transparent MIP color displayMineral glass (anti-fog treatment)
Touch screen
Band exchange△*Available in band exchange.
battery[No GPS used] (varies depending on the usage environment)
Normal use (color display): Approximately 1 day
Normal use (color display auto-off※): Approximately 2-day
dc only (timepiece mode): Approximately 1 month or more
[When using GPS] (varies depending on the usage environment)
Positioning per second (color display): 6-8 hours (precision priority) / Approximately 18 hours (battery priority)
Positioning per second (color display auto-off※): 7-9 hours (precision priority) / Approximately 25 hours (battery priority)
Intermittent positioning (color display): Approximately 1 day (6-minute interval positioning)
Intermittent positioning (color display auto-off※): Approximately 2 days (6-minute interval positioning)
* When not operating, the clock display will automatically switch to monochrome LCD clock display.
Up to 12 days (watch mode + optical heart rate monitor)
Up to 20 hours (training mode + GPS mode + optical heart rate monitor)
Up to 30 hours (ultra track mode + optical heart rate monitor)
[When using a watch (Note 1) (Note 2) (Note 3)]
Approximately 24 days (when the activity meter is on)
Approximately 30 days (when the activity meter is off)
[When using GPS]
Approximately 46 hours (high-precision mode, GPS per second positioning) (Note 3) (Note 5)
Approximately 110 hours (long-time mode, intermittent GPS positioning) (Note 3) (Note 4) (Note 6)

(Note 1) When auto sleep is enabled in our environment. (Sleep time: 14 hours/day)
(Note 2) GPS signals are received regularly on the clock display screen to reduce the GPS positioning time.
(Note 3) Operating time may vary depending on the GPS reception environment and the settings of this product.
In particular, if the GPS reception environment is poor, such as indoors, the operating time will be shorter. (Setting conditions: Light on/HR monitor, etc.)
(Note 4) Long-term mode cannot be selected in running mode.
(Note 5) Operating time in trekking mode. It can run for up to 40 hours in running mode.
(Note 6) Operating time in trekking mode. Long-term mode cannot be selected in running mode.

GPSCompatible with GPS, GLONASS, and MichibikiCompatible with GPS, GLONASS, and MichibikiGPS and Michibiki compatible
Offline color map
sensor
  • Atmospheric pressure altitude sensor
  • Accelerometer
  • Gyro Sensor
  • Geomagnetic sensor
  • GPS
  • Atmospheric pressure altitude sensor
  • Geomagnetic sensor
  • Accelerometer
  • Gyro Sensor
  • Optical heart rate monitor
  • Temperature sensor
  • GPS
  • Accelerometer
  • Atmospheric pressure altitude sensor
  • Geomagnetic sensor
  • Temperature sensor
  • GPS
microphone
Waterproof5 atm100m10 Atm (100m)
DurabilityMIL STANDARD compliant  
Operating temperature-10℃ ~ +40℃-20℃ ~ +50℃-20℃ ~ +60℃
ABC (compass, barometer, altimeter) function
Thermometer
Sunrise and sunset
Activity meter△ (Only when measuring)
Pedometer△ (Only when measuring)
Sleep Monitoring
Bluetooth/Wi-Fi connectionBluetooth only
Smartphone integration
Smartphone notifications△*Mountain disaster information only
Course navigation
Goal settingCan be set using the standard app "ACTIVITY"
Waypoint registrationRecordable using the standard app "LOCATION MEMORY"Approximately 1,000100
Distance RecordRecordable using the mountaineering app "YAMAP"
Pace RecordingRecording can be done using the running and cycling app "Strava" etc.
Advanced RecordRecordable using the mountaineering app "YAMAP"
Location RecordRecordable using the mountaineering app "YAMAP"
Record of calories burnedRecording can be done using the running and cycling app "Strava" etc.
Heart rate measurement

Pitch Cadence Measurement

Recording can be done using the running app "Runkeeper" etc.
Data and Record Management ServicesGarmin ConnectNeoRun
Smartphone appCASIO MOMENT SETTER+Garmin Connect AppRun Connect App

We also recommend this article about GPS clocks for mountain climbing.

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