Author Topic: GPS Watch  (Read 17585 times)

JP4

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Re: GPS Watch
« Reply #30 on: March 20, 2017, 11:02:24 PM »
I've had the Vivoactive HR since last summer and I really like it. Besides using it for sup, surf, skiing, it's just a great watch. One of my favorite features is the automatic time zone change. I travel a lot for work so this is great. Also, it has a great vibrating alarm that would be pretty hard to sleep through as it shakes pretty good.
JP

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Luc Benac

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Re: GPS Watch
« Reply #31 on: May 15, 2017, 07:25:51 AM »
I have been using one for a few weeks now.
I use it only to record paddle runs that I then save as a GPX and review in GPS Action Replay.
I do look at the stroke info on Garmin Connect as it seems to be teh only way to access this data.
The watch is very convenient to operate so that is a big plus but I have to say that I am somewhat dissapointed by the lack of consistency/accuracy of the speed measurements.
Setting every second recording of data shows plenty of spikes with speed measured at 20km followed by zero and these are not isolated event either so much so that big portion of the recording seem useless.
I guess I am paddling in areas where the satellite coverage might be lacking?
Setting smart recording smooth the speed data read by the software.
Coming from a $50 Doppler data recorder (Canmore 102) it seems to have produced better quality files.
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Area 10

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Re: GPS Watch
« Reply #32 on: May 15, 2017, 07:28:37 AM »
I regularly find quite a big difference between the distance recorded by my Garmin Fenix 3 and my Velocitek Makai started and stopped simultaneously. Odd.

PonoBill

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Re: GPS Watch
« Reply #33 on: May 15, 2017, 08:59:25 AM »
It's doppler vs. distance/time averaging. Doppler is accurate, distance/time averaging is only accurate over longer distances and times.
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Luc Benac

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Re: GPS Watch
« Reply #34 on: May 15, 2017, 09:01:38 AM »
I regularly find quite a big difference between the distance recorded by my Garmin Fenix 3 and my Velocitek Makai started and stopped simultaneously. Odd.

Same here. My paddle on Sunday was 12.1 km based on the Makai and 11.5 km based on the VivoactiveH.
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baldbull

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Re: GPS Watch
« Reply #35 on: May 15, 2017, 02:28:13 PM »
I have the vivoactive HR as well. I bought it this december for under $200 on a xmas sale. Awesome watch. I got my wife the vivosmart HR+, much better size for her. I did tons of research before I bought this watch and found it was definitely the best for my needs. I wanted something waterproof that allowed me to turn off the bluetooth when I wasn't using it.

I mostly use it for running and biking. I only surf sup so I basically use it for the time. I really like the heart rate monitor, resting heart rate, and sleep tracking. I do not wear it to sleep anymore because it was uncomfortable but I did for a few weeks to get a good idea of how I slept and it was pretty interesting. I am very excited to see where this technology goes. There is a surfing app but I have yet to be able to get it to work. My watch face shows the tides, which is pretty useful. I did look at the fitbits and they didn't even compare. The tomtoms looked decent but nothing came close to the vivoactive.

Luc Benac

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Re: GPS Watch
« Reply #36 on: May 15, 2017, 03:23:11 PM »
It's doppler vs. distance/time averaging. Doppler is accurate, distance/time averaging is only accurate over longer distances and times.

500 meters over a 12 km paddle that is a big difference.....I do like the convenience and the stroke info - less so the big inaccuracy....
Of course the first peak showing 20km/h had me smiled the remaining up-teens ones not so much so.
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PonoBill

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Re: GPS Watch
« Reply #37 on: May 15, 2017, 04:08:25 PM »
I regularly find quite a big difference between the distance recorded by my Garmin Fenix 3 and my Velocitek Makai started and stopped simultaneously. Odd.

Ah, I didn't notice that you said distance, I immediately thought "speed". GPS distance is another problem, sort of a "how long is the coast of england" thing. Do you want linear distance between start and end points, distance travelled using increments of feet, or maybe every 20 feet. There is a systematic bias in distance measurement depending on the algorithm used. Generally GPS distance is longer than distances measured by other means.
Foote 10'4X34", SIC 17.5 V1 hollow and an EPS one in Hood River. Foote 9'0" x 31", L41 8'8", 18' Speedboard, etc. etc.

ForeverBlue232

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GPS Watch
« Reply #38 on: May 22, 2017, 11:18:36 PM »
I was thinking about picking up a Garmin Fenix 3 watch.  At the race I was at Sunday, it seemed that a lot of people had a Fenix 2 or 3.  How is the accuracy relative to using the Paddle Logger app on my iPhone 7?
« Last Edit: May 22, 2017, 11:25:10 PM by ForeverBlue232 »

oceanAddict

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Re: GPS Watch
« Reply #39 on: May 23, 2017, 07:23:21 AM »
I was thinking about picking up a Garmin Fenix 3 watch.  At the race I was at Sunday, it seemed that a lot of people had a Fenix 2 or 3.  How is the accuracy relative to using the Paddle Logger app on my iPhone 7?

I got Fenix 3 HR last fall and could not be happier. Barely take them off. Cannot tell accuracy vs iPhone as never compared it, in fact, today was a firs time I used them for SUP. I used them for walking, running, cycling, surfing before though. Here is my today's session if you want to see what statistic you're getting with watch.

https://connect.garmin.com/modern/activity/1750094524

I actually happy I don't have to take a cellphone with me. I took phone once and felt nervous when I fell into the water and was not sure if phone's leash was strong enough and I didn't loose it. I like to take a bunch of pics but I decide not to bring phone with me anymore ;)

p.s. My only complaint re Fenix - if you have a big wrist and putting the watch over wetsuit's sleeve the band could be a bit short..
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lajdesign

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Re: GPS Watch
« Reply #40 on: May 23, 2017, 12:04:19 PM »
While its not a watch ( do have a fitbit blaze), I use my phone and an app I wrote called paddle assist. I am usually listening to music and so the app tells me my speed every 30 seconds and then an overall every 5 minutes. After I made that app, I made another one where zombies chase you as you paddle. Made that one more for when I run since I get bored running. Just another option.

luke

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Area 10

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Re: GPS Watch
« Reply #41 on: May 23, 2017, 12:23:12 PM »
I think the accuracy of the iPhone 7 vs Fenix 3 would probably depend on where you are, since the iPhone can use WiFi if there is a satellite issue. But otherwise I should think they'd be pretty similar -they both use GPS and GLONASS.

The Fenix 3 has become a bit of a standard choice for the serious SUP racers. It provides stroke rate as well as the usual metrics (and heart rate if you either buy the HR version or a separate HR strap - I'd recommend the Tri one). And of course the watch is more robust and lighter than a phone. So it's up to you, really. I have an iPhone 7 and use it to email positioning updates when I'm on a big DWer, but otherwise I use the Fenix. It's a general activity meter as well, and it gets quite addictive to see eg. how many steps you've taken in a day, and to be reminded to get off your fat ass if you've been sitting around too long. My phone doesn't do that because I'm not wearing it all the time.

Btw, heart-rate specialists, my daily resting HR is often only 40 bpm and sometimes as low as 37 or 38. It's rarely over 42. I worry that this might be abnormally low. Does anyone else out there have resting rates this low? (Especially any older geezers.). I've been keeping pretty active SUPing for the last 10 yrs, but I'm certainly not a fitness fanatic.

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Re: GPS Watch
« Reply #42 on: May 23, 2017, 02:07:24 PM »
Btw, heart-rate specialists, my daily resting HR is often only 40 bpm and sometimes as low as 37 or 38. It's rarely over 42. I worry that this might be abnormally low. Does anyone else out there have resting rates this low? (Especially any older geezers.). I've been keeping pretty active SUPing for the last 10 yrs, but I'm certainly not a fitness fanatic.

Yes, it's pretty common. I have just about the same resting rates myself. My father who's active
as well and probably older than you at 67 has resting rates down to 32. So if we establish those
at home measuring devices are trust worthy than I'd say this is fairly common.
in progress...

Eagle

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Re: GPS Watch
« Reply #43 on: May 23, 2017, 02:37:23 PM »
"A heart rate of less than 60 beats per minute (BPM) in adults is called bradycardia. What's too slow for you may depend on your age and physical condition."  Also something to be aware of is too low BP.  Seems that outside the norms can be potential risk factors.

http://www.heart.org/HEARTORG/Conditions/Arrhythmia/AboutArrhythmia/Bradycardia-Slow-Heart-Rate_UCM_302016_Article.jsp

http://www.mayoclinic.org/diseases-conditions/low-blood-pressure/symptoms-causes/dxc-20316599

Insofar as cellphones OTW -> we make sure not to use any GPS apps to make sure we have good battery power for 911.  More important tho is when we are in the mountains.  Cell service up there is often touch and go.  Instead up there we bring another device for GPS tracking.  Often just another old cell or ipad touch or mini.  But if not venturing too far -> then a cell with a tracking app should normally be ok.  Be aware that some GPS apps are major drainage hogs.  Something to note.

Normally we just use a cheap GPS watch OTW that downloads and syncs direct to Strava.  Often tho will have my waterproof phone playing tunes -> but have noticed the battery drain after hours is quite nominal so quite ok for that.
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Re: GPS Watch
« Reply #44 on: May 23, 2017, 04:28:37 PM »
"A heart rate of less than 60 beats per minute (BPM) in adults is called bradycardia. What's too slow for you may depend on your age and physical condition."  Also something to be aware of is too low BP.  Seems that outside the norms can be potential risk factors.

Actually, the more important take away from that article IMO is:

"Physically active adults (and athletes) often have a resting heart rate slower than 60 BPM but it doesn't cause problems and is normal for them."
in progress...

 


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