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Garmin Fenix 5 Multisport GPS Watch with Outdoor Navigation and Wrist-Based Heart Rate - £299 @ Amazon
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Garmin Fenix 5 Multisport GPS Watch with Outdoor Navigation and Wrist-Based Heart Rate - £299 @ Amazon

£299£349.9915%Amazon Deals
31
Posted 6th Jul
Good price for this sports watch.
Key features
  • Stainless steel EXO-antenna as bezel and forged steel back.
  • Wrist heart rate with fully integrated sensor.
  • Activity profiles for all sports and adventures.
  • Performance Widget.
  • Strava Live Segments.
  • GPS + GLONASS satellite positioning.
  • Smart notifications and Connect IQ app support.
  • Water rated to 10 ATM (100m).

  • Stainless steel bezel and forged steel back with built-in GPS + GLONASS EXO antenna and anti-glare coated lens back to maintain best integrity in demanding environment
  • Display resolution - 240 x 240 pixels
  • Connectivity :BluetoothSmart, ANT+, Wi-Fi with sapphire editions
  • Smart Notifications, Connect IQ App support and QuickFit interchangeable bands (no tools required) for further customisation
  • Battery life: up to 2 weeks in smartwatch mode (depending on settings), up to 24 hours in GPS mode or up to 60 hours in UltraTrac battery saver mode
  • Performance Widget shows your training status, training load, VO2 Max, recovery advisor and more.
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31 Comments
"Performance Widget shows your ...VO2 Max..."

I wonder how it calculates that without measuring your inhaled & exhaled air.
fanpages06/07/2019 22:41

"Performance Widget shows your ...VO2 Max..."I wonder how it calculates …"Performance Widget shows your ...VO2 Max..."I wonder how it calculates that without measuring your inhaled & exhaled air.


Max heart rate divided by resting heart rate multiplied by 15.3?
98097106/07/2019 23:20

Max heart rate divided by resting heart rate multiplied by 15.3?


The ones they do in labs on a treadmill are ofcourse more accurate, but this gives a fair estimation. Problem is the HR on this watch is not very accurate in my opinion. As a result its turned off on mine. At high intensities it doesn’t register high enough HR at times. Needs to be paired with a chest strap for better accuracy
fanpages06/07/2019 22:41

"Performance Widget shows your ...VO2 Max..."I wonder how it calculates …"Performance Widget shows your ...VO2 Max..."I wonder how it calculates that without measuring your inhaled & exhaled air.



98097106/07/2019 23:20

Max heart rate divided by resting heart rate multiplied by 15.3?



andrewp07/07/2019 00:29

The ones they do in labs on a treadmill are ofcourse more accurate, but …The ones they do in labs on a treadmill are ofcourse more accurate, but this gives a fair estimation. Problem is the HR on this watch is not very accurate in my opinion. As a result its turned off on mine. At high intensities it doesn’t register high enough HR at times. Needs to be paired with a chest strap for better accuracy



You don't need to use a lab/treadmill to gain a (more) accurate reading. A local gym/fitness centre could perform the test on a ergocycle (cycle ergometer/modified exercise bike).

If the Garmin watch uses arithmetic based on just heart rate then it may as well just show the heart rate alone.
andrewp07/07/2019 00:29

The ones they do in labs on a treadmill are ofcourse more accurate, but …The ones they do in labs on a treadmill are ofcourse more accurate, but this gives a fair estimation. Problem is the HR on this watch is not very accurate in my opinion. As a result its turned off on mine. At high intensities it doesn’t register high enough HR at times. Needs to be paired with a chest strap for better accuracy


Wow... What's your heart beating at that the HR won't register
Hiyayou07/07/2019 11:19

Wow... What's your heart beating at that the HR won't register


When i’m all out running a 5k and it says my HR is about 150 then I know its lying to me

Wet weather too seems to affect it’s accuracy. I love the watch, just not the wrist based HR
Edited by: "andrewp" 7th Jul
fanpages06/07/2019 22:41

"Performance Widget shows your ...VO2 Max..."I wonder how it calculates …"Performance Widget shows your ...VO2 Max..."I wonder how it calculates that without measuring your inhaled & exhaled air.


It uses lookup tables from Firstbeat and it’s surprisingly accurate and a good measure of general fitness.

andrewp07/07/2019 00:29

The ones they do in labs on a treadmill are ofcourse more accurate, but …The ones they do in labs on a treadmill are ofcourse more accurate, but this gives a fair estimation. Problem is the HR on this watch is not very accurate in my opinion. As a result its turned off on mine. At high intensities it doesn’t register high enough HR at times. Needs to be paired with a chest strap for better accuracy



Anyone serious about heart rate and fitness should have a chest strap anyway. You also get HRV and run dynamics with a Garmin strap which gives a lot more insight. Optical HR has always been pretty rubbish, unless it’s resting or walking HR, don’t bother.
Edited by: "plewis00" 7th Jul
fanpages06/07/2019 22:41

"Performance Widget shows your ...VO2 Max..."I wonder how it calculates …"Performance Widget shows your ...VO2 Max..."I wonder how it calculates that without measuring your inhaled & exhaled air.



plewis0007/07/2019 19:59

It uses lookup tables from Firstbeat and it’s surprisingly accurate and a g …It uses lookup tables from Firstbeat and it’s surprisingly accurate and a good measure of general fitness...


What does it "lookup"; use as the factor(s) to calculate an individual's V02 Max value?
fanpages07/07/2019 20:18

What does it "lookup"; use as the factor(s) to calculate an individual's …What does it "lookup"; use as the factor(s) to calculate an individual's V02 Max value?


I don't know, it's not for me to convince you if you don't want to buy into it. But I use it, the data I get is largely accurate based on my fitness and how I feel and many others with Garmin watches are happy with the data:
firstbeat.com/en/…el/
fanpages07/07/2019 20:18

What does it "lookup"; use as the factor(s) to calculate an individual's …What does it "lookup"; use as the factor(s) to calculate an individual's V02 Max value?



plewis0007/07/2019 20:21

I don't know, it's not for me to convince you if you don't want to buy …I don't know, it's not for me to convince you if you don't want to buy into it. But I use it, the data I get is largely accurate based on my fitness and how I feel and many others with Garmin watches are happy with the data:https://www.firstbeat.com/en/consumer-feature/vo2max-fitness-level/



Thanks for the link.

I don't buy into the calculation of V02 Max without measuring inhaled & exhaled air, as I mentioned above.

Have you had your own V02 Max calculated (in this manner) to compare the results with the "lookup" data on the Firstbeat site that seems to suggest a 95% accuracy?

("...Firstbeat can automatically detect your VO2max fitness level during walking and running activities, using a proprietary method shown to be 95% accurate compared to laboratory measurements...")
fanpages07/07/2019 20:25

Thanks for the link.I don't buy into the calculation of V02 Max without …Thanks for the link.I don't buy into the calculation of V02 Max without measuring inhaled & exhaled air, as I mentioned above.Have you had your own V02 Max calculated (in this manner) to compare the results with the "lookup" data on the Firstbeat site that seems to suggest a 95% accuracy?("...Firstbeat can automatically detect your VO2max fitness level during walking and running activities, using a proprietary method shown to be 95% accurate compared to laboratory measurements...")


Yes, and it was 1 (unit) out. All I can tell you is that when I get fitter, the VO2Max figure goes up and when I'm having a rough time it goes down. And I can get close to the race estimator times which are VO2Max based (excluding muscle fatigue). If you don't want to believe it then that's fine but you can't keep paying for gym tests every time you'd like an updated figure. 95% accurate seems a fair assumption from FirstBeat and Garmin and it beats having to do it manually. If you're buying it for VO2Max, then don't - basically.
plewis0007/07/2019 20:28

Yes, and it was 1 (unit) out. All I can tell you is that when I get …Yes, and it was 1 (unit) out. All I can tell you is that when I get fitter, the VO2Max figure goes up and when I'm having a rough time it goes down. And I can get close to the race estimator times which are VO2Max based (excluding muscle fatigue). If you don't want to believe it then that's fine but you can't keep paying for gym tests every time you'd like an updated figure. 95% accurate seems a fair assumption from FirstBeat and Garmin and it beats having to do it manually. If you're buying it for VO2Max, then don't - basically.



Sorry, you keep suggesting I don't want to believe; I just need to be convinced that the defined method (& from where the test name is derived) can be (almost) accurately be calculated.

I've never paid for a gym test, but had a freebie. I'm just trying to establish if the need for intake/exhaled air is necessary.

I'm not looking to diminish your findings; just looking for clarification on accuracy.
fanpages07/07/2019 20:31

Sorry, you keep suggesting I don't want to believe; I just need to be …Sorry, you keep suggesting I don't want to believe; I just need to be convinced that the defined method (& from where the test name is derived) can be (almost) accurately be calculated.I've never paid for a gym test, but had a freebie. I'm just trying to establish if the need for intake/exhaled air is necessary.I'm not looking to diminish your findings; just looking for clarification on accuracy.


Yes, but my findings are subjective as will yours be unless you can verify it yourself, and what I'm saying is, the Garmin community as a whole thinks it's pretty good, that's good enough for me to take them on face value. If you want the watch for the other features too and this is just a bonus, then I'd still advise you to buy it as everything else is excellent and far exceeds what other smartwatches that aren't fitness-oriented can manage.
plewis0007/07/2019 20:42

Yes, but my findings are subjective as will yours be unless you can verify …Yes, but my findings are subjective as will yours be unless you can verify it yourself, and what I'm saying is, the Garmin community as a whole thinks it's pretty good, that's good enough for me to take them on face value. If you want the watch for the other features too and this is just a bonus, then I'd still advise you to buy it as everything else is excellent and far exceeds what other smartwatches that aren't fitness-oriented can manage.



To be fair, I don't subscribe to the need for a (so-called) "Smart" watch at all as my chest-based heart monitor meets my needs, but I appreciate the discussion.

Thank you.
fanpages07/07/2019 21:09

To be fair, I don't subscribe to the need for a (so-called) "Smart" watch …To be fair, I don't subscribe to the need for a (so-called) "Smart" watch at all as my chest-based heart monitor meets my needs, but I appreciate the discussion.Thank you.


Sorry, I don't understand... what do you use your chest HR with then? I assumed as you were commenting in this thread you were looking at the Fenix 5 but wondering if the VO2Max widget was worth it? If you're not interested in a Fenix 5 smartwatch then what did you want to know about it? This is a serious question.
plewis0007/07/2019 21:16

Sorry, I don't understand... what do you use your chest HR with then? I …Sorry, I don't understand... what do you use your chest HR with then? I assumed as you were commenting in this thread you were looking at the Fenix 5 but wondering if the VO2Max widget was worth it? If you're not interested in a Fenix 5 smartwatch then what did you want to know about it? This is a serious question.



I use my heart-rate (chest strap) monitor with a centre-based system (that can connect via Bluetooth to an Android [or Apple] "app" at any other time).

I don't have access to a V02 Max system (as mentioned above), & my progress would benefit from having an accurate reading; hence looking at this watch.
fanpages07/07/2019 21:25

I use my heart-rate (chest strap) monitor with a centre-based system (that …I use my heart-rate (chest strap) monitor with a centre-based system (that can connect via Bluetooth to an Android [or Apple] "app" at any other time).I don't have access to a V02 Max system (as mentioned above), & my progress would benefit from having an accurate reading; hence looking at this watch.


Don't buy it for the VO2Max or if you don't do things outside of the gym (if I've understood that correctly). You'll be wasting your money based on what you've said.
plewis0007/07/2019 21:46

Don't buy it for the VO2Max or if you don't do things outside of the gym …Don't buy it for the VO2Max or if you don't do things outside of the gym (if I've understood that correctly). You'll be wasting your money based on what you've said.



I don't "do things" outside the gym. I was looking to improve the accuracy of my statistics (heart rate/calorie burn rate*) within my gym sessions.

* albeit that caloric expenditure is just guesswork anyway...

[ myzone.org/blo…ne/ ]
fanpages07/07/2019 21:51

I don't "do things" outside the gym. I was looking to improve the …I don't "do things" outside the gym. I was looking to improve the accuracy of my statistics (heart rate/calorie burn rate*) within my gym sessions.* albeit that caloric expenditure is just guesswork anyway...[ https://myzone.org/blog/master-trainers/estimating-caloric-expenditure-with-myzone/ ]


If you don't train outside the gym then a high-end smartwatch with GPS is a waste. Calorific expenditure is guesswork as you say but Garmin has a good stab with it with HR, HRV data, speed, elevation, etc. For the same reason that FirstBeat VO2Max data is guesswork but a good approximation. If I were you I would just use the tools your gym has.
plewis0007/07/2019 21:55

If you don't train outside the gym then a high-end smartwatch with GPS is …If you don't train outside the gym then a high-end smartwatch with GPS is a waste. Calorific expenditure is guesswork as you say but Garmin has a good stab with it with HR, HRV data, speed, elevation, etc. For the same reason that FirstBeat VO2Max data is guesswork but a good approximation. If I were you I would just use the tools your gym has.


Oh yes, I intend to. If you recall, I was just curious how the V02 Max reading was achieved.
Great price! Think I'll hold out until Prime Day though, we might see some tasty Garmin deals..
I’m looking to get my bf a watch for his birthday, he’s going to Norway for 4 months to do deep sea diving, can anyone recommend me a good watch for under water etc please. Much appreciated thanks
beckynicol2307/07/2019 23:41

I’m looking to get my bf a watch for his birthday, he’s going to Norway for …I’m looking to get my bf a watch for his birthday, he’s going to Norway for 4 months to do deep sea diving, can anyone recommend me a good watch for under water etc please. Much appreciated thanks


Not this watch, he needs a diving computer. The Suunto range are very good. If he's going to do "deep sea diving" we'd need to know a bit more about how hardcore/technical/serious he is. If he's just starting out the Suunto Zoop computers are great, I've used one for years.
amazon.co.uk/Suu…c=1
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beckynicol2307/07/2019 23:41

I’m looking to get my bf a watch for his birthday, he’s going to Norway for …I’m looking to get my bf a watch for his birthday, he’s going to Norway for 4 months to do deep sea diving, can anyone recommend me a good watch for under water etc please. Much appreciated thanks



The Garmin Descent Mk1 watch is designed for diving. I think it is basically the Fenix 5X, but with extra dive features added. It is not cheap.
It’s £349 on there now?... Is this going to come down again on prime day do we think?... Is it going to go lower than £299... If not I’ll just get it from Argos now...
anthony8309/07/2019 10:23

It’s £349 on there now?... Is this going to come down again on prime day do …It’s £349 on there now?... Is this going to come down again on prime day do we think?... Is it going to go lower than £299... If not I’ll just get it from Argos now...


Yes, sadly, will expire
Tacavas09/07/2019 11:14

Yes, sadly, will expire


The Argos one? I was worried about stock levels so I’ve purchased it from Argos at £299 (still a great price) and they have a 30day no questions return policy if it does go cheaper on amazon prime day next week. We shall see 🏼
waz1234507/07/2019 22:57

Great price! Think I'll hold out until Prime Day though, we might see some …Great price! Think I'll hold out until Prime Day though, we might see some tasty Garmin deals..


I couldn’t wait for prime day
anthony8309/07/2019 13:58

I couldn’t wait for prime day


Haha I'm fighting my impulses, let's see how that works out for me!! Enjoy the new toy (I mean essential tool)
There was only one in stock for £284.99 I saw... did it go lower?
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