What meter is exactly one lap of the Imperial Run?
A running course of the Imperial Palace in Tokyo where many runners are running day and night.It is a popular course because there is no signal and the road width is reasonably large (although there are small places), but one lap is "about 5 km" and the right length is also a popular point.
But don't you worry about "about 5km" exactly how met it is?
Many other running courses have a display such as "〇〇 km from the start", so if you measure the time to the reach, you can determine the average speed, but if it is said to be about 5 km, it is less than 5km, 5km.I'm curious if it's a little.
Therefore, in this article, I would like to use the GPS function of the smartwatch to determine the accurate value from the starting point to the goal point (that is, the starting point where one lap ran).
I usually use Apple Watch, but this time I also wore a smart watch from another brand in the editorial department.
I hope that if you wear a total of four on both arms, you can measure a fairly accurate value.
[I want to read it together]
Smart watch GPS is super accurate!Introducing running measurement results wearing an Apple Watch and Garmin flagship machine https: // www.SmartWatchlife.JP/25032/
Click here for the smart watch used
Needless to say, the top brand of the smartwatch world.
It is a versatile smartwatch for both business and exercise, and the weak point is that the battery is bad.
I feel that sensors are more reliable than other companies.
See Apple Watch on Amazon
GARMIN, which has a reputation for GPS, may be No.1 with sports, especially running.
I sponsored various races, and there is a brand power that seems to be the most correct value measured in Garmin!
However, this time, we are not a sports model, but a highbrid model Vivomove3 for town.
The sensor will surely adopt the same thing, so even if you subtract that it is not a sports model, you will have a great sense of trust.
See Garmin on Amazon
Fit bit with No.1 brand power as a fitness smartwatch.
Versa 3 is a model of the versatile and high -performance series among them.
The price is reasonable, and the smart watch world is NO even in cost performance.It may be 1.
See Fitbit on Amazon
Shaomi's Mi Band series, which seems to be both Fitbit and Apple Watch in cost performance.
Although the screen is small in a sports band type, it is very multifunctional.
It is still surprising that you can buy a smart watch with this performance for about 5,000 yen.
I'm curious how the performance of "Cheap Smart Watch" (dare to call it) is different from the world's famous brands.
In addition, GPS is not installed by itself, and location information is obtained in cooperation with smartphones. What is the result?
See Mi Band on Amazon
Distance measurement and comparison of the performance of each company's smartwatch
Since I run with four smart watches, I will try to see if the measured values other than the distance are different.
I have used smartwatches from each company, but "calories consumption" are surprisingly different, and I often get angry with "I'm consuming a little more!"Hmm).
Speaking of the number that can be measured during exercise outside with a smartwatch sensor
・ Measure the distance with a GPS sensor ・ Measure the heart rate with a heart rate sensor ・ Measure the height difference with an altimeter ・ Calculate them and consume calories.
So, I would like to measure and compare these four numbers.
Results for each smartwatch
You can install various apps on the Apple Watch, but the running app I love is Strava.
Strava is an app that can be used in Fitbit, Garmin, and Wear OS, but it is an excellent app, such as having a function like SNS and comparing it with other users who ran the same course.As a result of measuring here
・ Distance = 4.93km, height difference = 27m, calorie consumption = 445 kcal, average heart rate = 149 times/minute
Was logged.Because it is an application that I usually use, there is no particular discomfort.
[I want to read it together]
If you use Strava with Apple Watch, you will want to exercise!What is the reason?https: // www.SmartWatchlife.JP/21923/
Garmin logs with an app called Garmin Connect.
・ Distance = 5.06km, height difference = 148m, calorie consumption = 297 kcal, average heart rate = 161 times/minutes
Is displayed.
During the running, I was running while thinking that "1km lap notification does not arrive at Garmin a little earlier", but the distance came out a little longer and exceeded 5km.
Regarding the height difference, I think that it is a bit far from the actual situation, so there may have been a measurement error or malfunction.
Garmin Connect displays the trajectory and speed that appears on the map.
It is obvious that only the downhill is speeding up, and that it has been battered on the uphill.
Fitbit Versa3 logs in the Fitbit app.
・ Distance = 4.95km / height difference = 23.77m/calorie consumption = 341 kcal, average heart rate = 157 times/minute
All of the numbers have no sense of discomfort and discomfort.
It is slightly shifted from the Apple Watch, but it is subtle which is correct.
Xiaomi's Mi Band is logged with an app called Mi Fit.
There is no function to measure the height difference, and Xiaomi needs to connect with a smartphone and Bluetooth when operating the GPS.
The GPS sensor is not on the watch body, and it is a specification that takes the location information with the GPS sensor on the smartphone.
If you always carry your smartphone together, this method is certainly enough.
However, care must be taken if you start running without checking the connection with your smartphone.
The result of the numerical value
・ Distance = 4.97km/calorie consumption = 343 kcal, average heart rate = 160 times/minute
have become.
What are the surprising overall results?
Each result varies, but you can still see that "this number is probably trusted" and "this number cannot be trusted".
Speaking of altitude, the value of "148m" that appeared in Garmin Vívomove 3 is far from the real feeling.
I decided the value of "deemed precise value" because of these "probably the values that seem to be correct".
Of course, there is no correct guarantee of this "deemed precise value", but here it is intuitively determined by the "median value of the correct value".as a result
・ Distance = 4.95km / height difference = 25.5m/calorie consumption = 340 kcal, average heart rate = 158 times/minute
Was the "deemed precise price".
Furthermore, the error with each value is expressed in the percentage of "accurate values".If the error with the accuracy is 4%, the accuracy value is considered 96%.
The table below is the list of those values.
Those with high accuracy are dark red, and those that lack a little accuracy are thin red.Those that are not substantially measured are colorless.
In this way, the accuracy of Fitbit's value stands out.
As expected, the brand power in the fitness field is not Date, and it is no exaggeration to say "Apple Watch or higher" in this regard.
Despite the low -priced model, the good fight of Xiaomi MI Band 5 also shines.
It is a negative point that the height difference is not obtained, and the GPS function relies on linking with the smartphone, so it is only the heart rate that actually measure it, but as long as the accurate value is obtained, that is it.Because it is the best, it can be said that it is a bargain model.
Regarding Garmin, the model used was a high -fashion hybrid model vívomove 3, but it may not have been suitable for this experiment.
I think that if you experiment with the FOREATHLETE model, you will get a different result.
It is difficult to evaluate Apple Watch.
I felt that the average heart rate and calories consumed in particular were "it may not be surprisingly accurate" compared to other brands.
However, as described above, there is no guarantee whether the "deemed pulse value" is correct, and it may be quick to judge only this time.
In this demonstration experiment, it may be that "which model is highly accurate", or rather, "you can understand the trends of each brand and model".
Please refer to the tendency of this experiment and compare it with your numbers.
Xiaomi mi Smart Band5 trial review.Cospa is the best and female editorial staff are also very satisfied!https: // www.SmartWatchlife.JP/13454/
Fitbit's latest major model and selection guide for smart watches.Suica compatible models one after another!Introducing the latest model "Fitbit Charge5" [2021 Summer Edition] https: // www.SmartWatchlife.JP/16115/
GARMIN Smart Watch Current Major Model & Selection Guide [2021 Edition] https: // www.SmartWatchlife.JP/15192/
