HR Resting rate - Series 0

[honglong1976]

I found this: https://support.apple.com/en-us/HT204666

"Apple Watch measures your heart rate throughout the day when you’re still, and periodically when you’re walking (Apple Watch Series 1 or later)."

So, the series 0 used to do this with OS3 but not any more with os4. If you have a series 0, cycle for 20 mins. No HR is recorded. With OS3 it was.

Kinda annoyed functionality has been taken away. Anyone else?

 

[Mlrollin91]

Take a photo of your HR from the health app.

Here is mine. One from a walk I did. No HR has been taken at all (watchos3 it would). And from yesterday. HR not every 5 mins.

Again, for now the 4th time. watchOS 3 was NOT supposed to do that. I will post a picture of both watchOS 3 and watchOS 4 from my S0 and you will see they are IDENTICAL. It is not supposed to take a heart rate when you are moving UNLESS you are running a workout.

watchOS 3.2.3


watchOS 4.0


Exactly the same. Once ever 5-15 minutes depending on if I was moving or not.

It is NEVER supposed to maintain a continuous heart rate unless a workout is running. Whether its the Apple workout app or a third party app.

Clearly your watch 3.2.3 was "special" and didn't follow the rules, but it is now following the rules in watchOS 4.0. It was never supposed to do what it did, so you got accustomed to something that it should not be doing, like my Sister's S0 playing music through the watch speaker. It wasn't supposed to do that, but it did because of a freak bug. But now you are on watchOS 4.0 and back to how it was designed. If you want your heart rate, just run a workout. Its not like thats not an option.

 

[Mlrollin91]

Today’s HR readings from my watch. Please explain!

I am not using the workout app and this is the periodic/every 10 mins HR readings the watch takes. Definitely, not every 10 mins as per Apple specifications. Watch OS4.

Really not that complicated...you manually or accidentally “manually” launched the heart rate app.

I do it all the time by mistake.

I’m not entirely sure why I am bothering responding because you will likely dismiss what I say.

And again, as I have mentioned several times. WatchOS 3-4 is every 5. unless “if still”. Again I’m over simplifying it for time sake. If you want me to fully explain why sometimes it’s 3 minutes and sometimes is 10-15 I will. I dealt with Apple Watch Engineers for over 2 months. I had direct contact with heart rate testing as they were using me as a test subject after I originally complained about the changes that watchOS 1.1 brought. Tim Cook’s executive office reached out to me about it.

Feel free to go through my 11,000 posts. There are plenty explaining my engineer contact. Others also were contacted by engineers for heart rate.

 

[1984power]

Greetings @honglong1976,

I also use a 1st generation Apple Watch.
It's still on watchOS 3.2.3 at the moment and I'm thinking of upgrading to watchOS 4.1 when it releases.

After finding your thread I decided to verify this for myself: I started walking at about 08:15, but HR data only resumes at 08:29.




Was your Watch on 3.2.3 when it recorded your HR data?
Maybe you weren't cycling vigorously enough or there was some kind of detection error?
I have repeated this "experiment" for over a week and my HR data is never recorded. My iPhone is running 10.3.3.

 

[Mlrollin91]

Here is my HR data. Both days I cycled to work. Both days I wore my watch from 7.30am and cycled to work, both without using the exercise app. Watch OS 3 records HR data during that time. Watch OS 4 completing ignores my HR during cycling and only records my HR at 8.30 when I start work. So it must detect I have moved, which means a better resting HR and yet series 0 doesn't do it! ARGH!

WatchOS3
https://pixady.com/image/0b5l/

WatchOS4
https://pixady.com/image/0b5m/

There is some inaccuracies in this thread. watchOS 1.0 allowed the S0 watch to record your heart rate once every 5 minutes whether you were active or not. watchOS 1.2 changed that to once every 10 minutes if you are still (no arm movement). watchOS 3 changed that to every 5 minutes if you are still (again, no arm movement). watchOS 4 treats the S0 the same as watchOS 3.

The fact that you are getting real time heart rate on your S0 watch WITHOUT running an exercise is the exception and not the rule. After 2.5 years of owning a S0 watch, it has never done what your first photo has shown unless you are running a workout. Apple's support site even states that. You only get real time heart rate when running a workout app. So what you are seeing in watchOS 4 is intended behavior for the S0. Even the S3 will not track your heart rate without running a workout, but merely track every 1-2 minutes depending on if you are resting or walking in order to establish those new graphs that iOS 11 has.

So what you are experiencing is intended behavior and what you had previously experienced was not. If you want your heart rate to be tracked fully, run a workout.
[doublepost=1508077011][/doublepost]

Greetings @honglong1976,

I also use a 1st generation Apple Watch.
It's still on watchOS 3.2.3 at the moment and I'm thinking of upgrading to watchOS 4.1 when it releases.

After finding your thread I decided to verify this for myself: I started walking at about 08:15, but HR data only resumes at 08:29.

View attachment 725482


Was your Watch on 3.2.3 when it recorded your HR data?
Maybe you weren't cycling vigorously enough or there was some kind of detection error?
I have repeated this "experiment" for over a week and my HR data is never recorded. My iPhone is running 10.3.3.

As stated above. On an S0 watch, heart rate is ONLY recorded once every 5 minutes if you are stationary/still/no arm movement. Only the S1+ is capable of reading a heart rate while you are active UNLESS you are running a workout. I am going to assume its because of battery drain and the accuracy of the heart rate monitor. My S3 battery life lasts 5x longer than my S0, and my S3 is running the heart rate monitor practically all day.

 

[iPhysicist]

@Mlrolling91 your right. Sometimes you can not convince peolpe no matter how hard you try.

Apple added the HR monitoring during ‚active‘ walks for S1 and above. Nothing was taken away from S0 with wOS4.
My watch S0 is as fast as it was before the update but there are others who like to disagree but that an other story.

 

[Mlrollin91]

I tried to help you over the last several days. Clearly you don’t want to hear it.

 

[Mad Mac Maniac]

Things got a little heated in here but let me do my best to throw in my 2 cents.

I found this: https://support.apple.com/en-us/HT204666

"Apple Watch measures your heart rate throughout the day when you’re still, and periodically when you’re walking (Apple Watch Series 1 or later)."

So, the series 0 used to do this with OS3 but not any more with os4. If you have a series 0, cycle for 20 mins. No HR is recorded. With OS3 it was.

Kinda annoyed functionality has been taken away. Anyone else?

I think your kind of mis-interpreting this. Previously Apple watch used to only record HR when you are still. Now they are adding a couple of measurements: "resting HR" (i.e. no movement within 5 minutes, will also give you alerts if you HR goes above 100 during this type of reading) and "walking HR" (will occasionally check HR during walking detected movement and will categorize this separately). Whether it's a h/w or merely s/w limitation these new type of readings are series 1 and up only.

Here is the HR information direct from Apple (and the most accurate so far): via http://web.archive.org/web/20150415000000*/https://support.apple.com/en-gb/HT204666

2015
Apple Watch attempts to measure your heart rate every 10 minutes, but won't record it when you're in motion or your arm is moving. (every 10 mins).

2016
Apple Watch only takes this background reading when you're still, the time between these measurements will vary. (no mention of time, so assuming periodically).

2017
Apple Watch measures your heart rate throughout the day when you’re still, and periodically when you’re walking (Apple Watch Series 1 or later) (again, no mention of time).

Can't you see you just disproved yourself? In the Apple links you supplied from 2015 and 2016 it is ONLY supposed to record HR when you are still. Now in 2017 Apple has added a walking HR category for series 1 and up. It's as simple as that. Yes I understand in your experience your functionality has changed, but I think this is actually Apple improving their implementation. Not a bug.

For what it's worth, I prefer it how it is. I don't want my HR calculated when I'm running or biking unless I activated a workout. I used HeartWatch to check all my data, and I would hate to have a bunch of 100+bmp readings for a bike ride that screw up all the metrics for my "normal HR". so for you I have 2 questions 1) Why are you so desperate to have this HR recorded during your bike ride 2) Why don't you just record a biking working to/from work?

 

[honglong1976]

Things got a little heated in here but let me do my best to throw in my 2 cents.



I think your kind of mis-interpreting this. Previously Apple watch used to only record HR when you are still. Now they are adding a couple of measurements: "resting HR" (i.e. no movement within 5 minutes, will also give you alerts if you HR goes above 100 during this type of reading) and "walking HR" (will occasionally check HR during walking detected movement and will categorize this separately). Whether it's a h/w or merely s/w limitation these new type of readings are series 1 and up only.



Can't you see you just disproved yourself? In the Apple links you supplied from 2015 and 2016 it is ONLY supposed to record HR when you are still. Now in 2017 Apple has added a walking HR category for series 1 and up. It's as simple as that. Yes I understand in your experience your functionality has changed, but I think this is actually Apple improving their implementation. Not a bug.

For what it's worth, I prefer it how it is. I don't want my HR calculated when I'm running or biking unless I activated a workout. I used HeartWatch to check all my data, and I would hate to have a bunch of 100+bmp readings for a bike ride that screw up all the metrics for my "normal HR". so for you I have 2 questions 1) Why are you so desperate to have this HR recorded during your bike ride 2) Why don't you just record a biking working to/from work?

Mlrollin91 - his argument was HR is recorded every 5 mins and HR data is not collected when performing an activity (and the 6x battery life claim! haha).

My argument is HR is recorded anything from 1 min to 15 mins (not every 5 mins, although there is only a mention of 10 mins in 2015 and no mention of time after that via Apple support docs). I understand how the HR should work but on my watch and those I know it doesn't act as Apple suggested. With OS3, HR wasn't just recorded during no movement but also during movement. I suspect more are doing the same thing (there are millions out there). So, it's either by design or a bug. As mentioned I reported to Apple.

I showed evidence of the HR rates during cycling with WatchOS3 vs 4. I showed HR rates with reading from 1-15 min readings, which were emailed to Apple as part of the beta.

I would rather it work as it did in WatchOS3 due to the battery hit running a workout.

Again, I suspect Apple dropped this feature to push S0 owners towards a newer Apple Watch. I emailed Apple about it already.

That's all my argument was and still is!

That's all!

Lot easier when I had a Fitbit Blaze. Records the HR 24/7 every second!

 

[Mad Mac Maniac]

With OS3, HR wasn't just recorded during no movement but also during movement. I suspect more are doing the same thing (there are millions out there). So, it's either by design or a bug. As mentioned I reported to Apple.

I showed evidence of the HR rates during cycling with WatchOS3 vs 4. I showed HR rates with reading from 1-15 min readings, which were emailed to Apple as part of the beta.

I would rather it work as it did in WatchOS3 due to the battery hit running a workout.

Again, I suspect Apple dropped this feature to push S0 owners towards a newer Apple Watch. I emailed Apple about it already.

That's all my argument was and still is!

That's all!

Lot easier when I had a Fitbit Blaze. Records the HR 24/7 every second!

The only bug would be when Apple watch recording HR during movement pre-watchOS 4. That was never the intention, and that's how it has always worked for me. I'm not saying it's always been perfect, but that was how it was supposed to function. That is exactly why you have always seen a 1-15 minute range in HR (not collecting during movement). If anything, Apple has just tweaked the algorithm to make it more consistent (also adding the ability to differentiate between being still and walking).

I highly doubt this was differentiation (between S0 and others) was done to drive upgrades... It's a very small thing that very few will notice/care (there are far, far bigger reasons...). I think the processor in S1+ is probably just better at handling this.

I can understand the desire not to waste battery life for non-structured workouts (especially on an old/dying S0 battery), but why do you even care about recording HR during your ride to/from work? Like I said, I wouldn't wanna have these high HR anomalies mixed with my regular HR. Honestly if I were you, I'd probably log the workout and just get an extra charger for work (or transport back and forth) and just throw it on the charger at work for like 20-30 minutes. The watch charges super fast and that should be more than enough to compensate for the workouts.

Yes I absolutely wish Apple Watch recorded continuously as fitbit does...

So, because it doesn't happen on your watch, it's impossible to happen on someone else's watch? (this happened on two watches I owned) and those of colleagues. Again, I reported it to Apple.

So multiple of your colleagues also ride their bikes (without starting a workout) and have complained that now the Apple Watch doesn't record their HR while biking? Also you own 2 S0 watches? haha. That seems highly unusual.

Also, I wouldn't hold out hope that series 1+ will do this anymore either. It is designed to calculate HR while "walking". Cycling obviously isn't walking ( ) and thus would be detected differently via apple watch.

 

[Mad Mac Maniac]

I purchased an S0 Sports which was great and HR was recorded all the time. I upgraded to the SS S0 model and it also acted exactly the same. I work in a college and lots of people cycle to college. Fitbits are popular and so are the Apple Watch. One of my colleagues had an SS S0 (DLC coating model) and he used to run for miles and it would always randomly take HR between 1-15mins. Same for cycling. I asked a couple of other work colleagues and there's also did the same thing.

... and the only guys who really know how the watch functions or why it functions as it does or did is Apple.

Yes this is exactly correct. Which is why I direct you to apple’s own words that you quoted previously. The intent of all was for HR to not be recorded during movement. 2015 and 2016 that was the intent. Now they have added a new “during walking” feature for S1+.

Perhaps I’m being dense, but I truly truly don’t understand why a) so many people you know want to workout with their Apple Watch WITHOUT STARTING A WORKOUT and b) why anyone would care if HR is recorded during that non-workout workout. Do people not care about distance, pace, continuous HR??? I can’t imagine why you would care if you don’t get 2-3 HR recordings during a 20 minute bike ride. That literally tells you nothing about your activity.

 

[Mlrollin91]

Nope not bored. As you can see I posted in that thread and because someone made a new post, it notified me.

 

[ftaok]

That isn't how I'm reading it. I think, perhaps, that they're saying the the S0 won't take your heart rate if you're moving vigorously enough to sense walking ... and the S1 and later do.

I don't think it's saying that the S0 won't check HR during a workout (including walking).

But I could be wrong as I don't have an S0 and don't know how and when the HR is taken.

 

[Mabus51]

The S0 only took your Heart rate every 5 minutes. I don't believe it discerned resting or exercising.

 

[honglong1976]

The S0 only took your Heart rate every 5 minutes. I don't believe it discerned resting or exercising.

It wasn't every 5 mins, it was anything from 1min to 15 mins and varied on what you did. When I cycled or run, without using the workout app, my HR was recorded. Now, any exercise, HR is not recorded unless I use the workout out. It obviously detects you are exercising and stops recording HR.

I will get some screenshots and post from WatchOS3 vs os4.

 

[twisted-pixel]

those of us that remember back to the very early days of S0 will remember the heart rate monitor took a reading every 5 minutes. They then did an update in 1.1 or 1.2 that removed this.

 

[Pug72]

The S0 only took your Heart rate every 5 minutes. I don't believe it discerned resting or exercising.

It did, I quite often got a notification that I'd done 30 mins of exercise at work when I'd been particularly busy.

 

[honglong1976]

Here is my HR data. Both days I cycled to work. Both days I wore my watch from 7.30am and cycled to work, both without using the exercise app. Watch OS 3 records HR data during that time. Watch OS 4 completing ignores my HR during cycling and only records my HR at 8.30 when I start work. So it must detect I have moved, which means a better resting HR and yet series 0 doesn't do it! ARGH!

WatchOS3
https://pixady.com/image/0b5l/

WatchOS4
https://pixady.com/image/0b5m/

 

[honglong1976]

There is some inaccuracies in this thread. watchOS 1.0 allowed the S0 watch to record your heart rate once every 5 minutes whether you were active or not. watchOS 1.2 changed that to once every 10 minutes if you are still (no arm movement). watchOS 3 changed that to every 5 minutes if you are still (again, no arm movement). watchOS 4 treats the S0 the same as watchOS 3.

The fact that you are getting real time heart rate on your S0 watch WITHOUT running an exercise is the exception and not the rule. After 2.5 years of owning a S0 watch, it has never done what your first photo has shown unless you are running a workout. Apple's support site even states that. You only get real time heart rate when running a workout app. So what you are seeing in watchOS 4 is intended behavior for the S0. Even the S3 will not track your heart rate without running a workout, but merely track every 1-2 minutes depending on if you are resting or walking in order to establish those new graphs that iOS 11 has.

So what you are experiencing is intended behavior and what you had previously experienced was not. If you want your heart rate to be tracked fully, run a workout.
[doublepost=1508077011][/doublepost]

As stated above. On an S0 watch, heart rate is ONLY recorded once every 5 minutes if you are stationary/still/no arm movement. Only the S1+ is capable of reading a heart rate while you are active UNLESS you are running a workout. I am going to assume its because of battery drain and the accuracy of the heart rate monitor. My S3 battery life lasts 5x longer than my S0, and my S3 is running the heart rate monitor practically all day.

My Series 0 always with WatchOS3 recorded my heart rate regardless of what I did. Drove, cycled, run, walked, etc. With WatchOS4 it doesn't. So Apple obviously changed the way that it records heart rates. It obviously detects I am cycling and stops recording the HR. If I am in the car driving, my HR is still recorded.

With WatchOS3 same with OS4, HR isn't recorded every 5 mins, but depending on movement and activity anywhere from 1 to 15 mins. WatchOS does the same. In health I have the following readings:

82 - 10:01
66 - 10:14 (13 mins later)
79 - 10:18 (4 mins later)

It's always done that.

As you can see from my photos, with WatchOS4 it is working different to WatchOS3.

Battery life still approx 2 days for me. So, if your battery lasts 5x longer, you must be getting 10 days out of your Apple Watch S3?
[doublepost=1508240100][/doublepost]

Greetings @honglong1976,

I also use a 1st generation Apple Watch.
It's still on watchOS 3.2.3 at the moment and I'm thinking of upgrading to watchOS 4.1 when it releases.

After finding your thread I decided to verify this for myself: I started walking at about 08:15, but HR data only resumes at 08:29.

View attachment 725482


Was your Watch on 3.2.3 when it recorded your HR data?
Maybe you weren't cycling vigorously enough or there was some kind of detection error?
I have repeated this "experiment" for over a week and my HR data is never recorded. My iPhone is running 10.3.3.

Hi @1984power

HR was recorded while on the latest WatchOS3. With cycling HR was recorded. With WatchOS4. It doesn't record cycling. If I cycle for 40 mins, no HR is recorded for 40 mins. Apple obviously changed the way HR is recorded to WatchOS3. Battery life is the same, maybe it's to obtain a better resting rate reading? but S0 doesn't support that. Either way, annoying.

 

[broadbean]

HeartWatch scored a mention on 9to5mac for saving a man's life as it included heart rate alerts. I won't post the link here, but it was dated October 16.

 

[Mlrollin91]

My Series 0 always with WatchOS3 recorded my heart rate regardless of what I did. Drove, cycled, run, walked, etc. With WatchOS4 it doesn't. So Apple obviously changed the way that it records heart rates. It obviously detects I am cycling and stops recording the HR. If I am in the car driving, my HR is still recorded.

With WatchOS3 same with OS4, HR isn't recorded every 5 mins, but depending on movement and activity anywhere from 1 to 15 mins. WatchOS does the same. In health I have the following readings:

82 - 10:01
66 - 10:14 (13 mins later)
79 - 10:18 (4 mins later)

It's always done that.

As you can see from my photos, with WatchOS4 it is working different to WatchOS3.

Battery life still approx 2 days for me. So, if your battery lasts 5x longer, you must be getting 10 days out of your Apple Watch S3?
[doublepost=1508240100][/doublepost]
Hi @1984power

HR was recorded while on the latest WatchOS3. With cycling HR was recorded. With WatchOS4. It doesn't record cycling. If I cycle for 40 mins, no HR is recorded for 40 mins. Apple obviously changed the way HR is recorded to WatchOS3. Battery life is the same, maybe it's to obtain a better resting rate reading? but S0 doesn't support that. Either way, annoying.

And what I’m telling you is what you experienced in watchOS3 was not supposed to happen. It was probably a weird bug. My sister was able to play music through her S0 watch speaker. Something you are not supposed to be able to do, but it worked. The heart rate is NEVER supposed to record unless once every 5 minutes while still or when a workout is running. Contact Apple, they will tell you that. It’s all over the support articles and throughout this forum for the last 2.5 years. What your watch was doing was not what it should have been doing. How it is behaving now is 100% correct.

 

[honglong1976]

And what I’m telling you is what you experienced in watchOS3 was not supposed to happen. It was probably a weird bug. My sister was able to play music through her S0 watch speaker. Something you are not supposed to be able to do, but it worked. The heart rate is NEVER supposed to record unless once every 5 minutes while still or when a workout is running. Contact Apple, they will tell you that. It’s all over the support articles and throughout this forum for the last 2.5 years. What your watch was doing was not what it should have been doing. How it is behaving now is 100% correct.

I know many people with an Apple Watch and HR is recorded anywhere from 1-15mins.

If it records every 5mins, please provide a source. No mention on the Apple website apart from HR recorded periodically.

Anyone else find this with their Apple Watch.

Sounds to me your have the only Apple Watch with 10 days battery and HR recorded religiously at 5min interviews.

Must be the Steve Jobs Apple Watch Edition

 

[Mlrollin91]

I know many people with an Apple Watch and HR is recorded anywhere from 1-15mins.

If it records every 5mins, please provide a source. No mention on the Apple website apart from HR recorded periodically.

Anyone else find this with their Apple Watch.

Sounds to me your have the only Apple Watch with 10 days battery and HR recorded religiously at 5min interviews.

Must be the Steve Jobs Apple Watch Edition

For the third time, it records every 5 minutes if you are STILL, no arm movement. If there is arm movement, it will not record until you are still for 5 minutes. Thus giving you a window of 5minutes to 10 hours. As long as you are moving it will not record the heart rate.

I really don't understand your attitude. Its been this way since watchOS 1.1 and even others in this thread have said that. I now have to go through my 11,000 posts to find "evidence" for you. Apple updated their website after S3 was introduced, so now I need to find the pre-S3 website where is specifically stated every 5 minutes while still.

Here you go: http://www.zdnet.com/article/apple-watch-heart-rate-every-10-minutes-motion/
https://9to5mac.com/2015/05/30/appl...-every-ten-minutes-but-wont-if-arm-is-moving/

Apple's website no longer states this because it was updated, but thats the old language. In watchOS 1.0 it was once every 5 minutes, in watchOS 1.1 it became once every 10 minutes WHILE STILL, then in watchOS 3.0, it was changed back to once every 5 minutes WHILE STILL. Thats how it remains in watchOS 4.0 with the S0 watch.

Along with some fixes and improvements, the first Apple Watch software update also modifies the behavior of the device's heart rate monitor.

The change is not for the better according to some Apple Watch owners. Instead of capturing heart rate every 10 minutes, the Apple Watch won't do so if you're in motion.

Over the weekend, Apple updated its support page for how the watch measures your heart ratenotes 9to5 Mac. Here's the relevant text with emphasis added by me to show the change:

You can check your heart rate any time using the Heart Rate Glance. And when you're using the Workout app, Apple Watch measures your heart rate continuously during the workout. This information, as well as other data it collects, helps Apple Watch estimate how many calories you've burned. In addition, Apple Watch attempts to measure your heart rate every 10 minutes, but won't record it when you're in motion or your arm is moving. Apple Watch stores all your heart rate measurements in the Health app.

As noted, you can still use an Apple Watch to get your heart rate even when you're in motion. The Workout app will do just that.

But the all-day, continuous heart rate monitoring every 10 minutes that was an original feature of the watch? That's been ratcheted down for some reason.

https://blog.cardiogr.am/how-to-continuously-record-heart-rate-on-your-apple-watch-a01bbc93b6ad

By default, Apple Watch turns the heart rate sensor on every five minutes. But sometimes you want a higher-resolution glimpse into what your heart is telling you—for example, during a workout or a stressful meeting

If this isn't "proof" enough, then I can't help you. But I purchased my S0 launch day 2015, and I know exactly how it works after 2.5 years of every day use.

Oh and no where did I make any claim about battery life except that my S3 is 5x better than my S0. I would put my S0 on the dock after 18 hours with 20% remaining. My S3 has 80% remaining after 18 hours. Just because YOUR S0 lasts 2 days doesn't mean anyone else's does.

 

[honglong1976]

For the third time, it records every 5 minutes if you are STILL, no arm movement. If there is arm movement, it will not record until you are still for 5 minutes. Thus giving you a window of 5minutes to 10 hours. As long as you are moving it will not record the heart rate.

I really don't understand your attitude. Its been this way since watchOS 1.1 and even others in this thread have said that. I now have to go through my 11,000 posts to find "evidence" for you. Apple updated their website after S3 was introduced, so now I need to find the pre-S3 website where is specifically stated every 5 minutes while still.

Here you go: http://www.zdnet.com/article/apple-watch-heart-rate-every-10-minutes-motion/
https://9to5mac.com/2015/05/30/appl...-every-ten-minutes-but-wont-if-arm-is-moving/

Apple's website no longer states this because it was updated, but thats the old language. In watchOS 1.0 it was once every 5 minutes, in watchOS 1.1 it became once every 10 minutes WHILE STILL, then in watchOS 3.0, it was changed back to once every 5 minutes WHILE STILL. Thats how it remains in watchOS 4.0 with the S0 watch.




https://blog.cardiogr.am/how-to-continuously-record-heart-rate-on-your-apple-watch-a01bbc93b6ad




If this isn't "proof" enough, then I can't help you. But I purchased my S0 launch day 2015, and I know exactly how it works after 2.5 years of every day use.

Oh and no where did I make any claim about battery life except that my S3 is 5x better than my S0. I would put my S0 on the dock after 18 hours with 20% remaining. My S3 has 80% remaining after 18 hours. Just because YOUR S0 lasts 2 days doesn't mean anyone else's does.

Take a photo of your HR from the health app.

Here is mine. One from a walk I did. No HR has been taken at all (watchos3 it would). And from yesterday. HR not every 5 mins.

 

[honglong1976]

Again, for now the 4th time. watchOS 3 was NOT supposed to do that. I will post a picture of both watchOS 3 and watchOS 4 from my S0 and you will see they are IDENTICAL. It is not supposed to take a heart rate when you are moving UNLESS you are running a workout.

watchOS 3.2.3
View attachment 725848

watchOS 4.0
View attachment 725849

Exactly the same. Once ever 5-15 minutes depending on if I was moving or not.

It is NEVER supposed to maintain a continuous heart rate unless a workout is running. Whether its the Apple workout app or a third party app.

Clearly your watch 3.2.3 was "special" and didn't follow the rules, but it is now following the rules in watchOS 4.0. It was never supposed to do what it did, so you got accustomed to something that it should not be doing, like my Sister's S0 playing music through the watch speaker. It wasn't supposed to do that, but it did because of a freak bug. But now you are on watchOS 4.0 and back to how it was designed. If you want your heart rate, just run a workout. Its not like thats not an option.

Thanks.

My argument was it doesn't record the HR every 5 mins but periodically from 1-15 mins. Which it has done from WatchOS3 to WatchOS4.

My screenshot posted originally showed this:

HR recorded at 8.35
HR recorded at 8.40 (5 mins later)
HR recorded at 8.41 (1 min later)
etc

https://pixady.com/image/0b5m/

It's like that all the time. HR recorded anywhere from 1 min to 15 mins. My friends apple watches do the same thing, so it's not isolated to my watch. I understand anywhere after 5 mins (13 mins for example due to movement) but recorded 1 min later or 3 mins later? Regardless of what you have read and Apple say (is there a source from Apple quoting readings are taken every 5 mins?), HR is being recorded at less than 5 mins intervals.

Also, with WatchOS3, not on my watch but anyone I know who had an Apple Watch, HR was recorded walking, running, cycling, etc. But with WatchOS4 it detects the movement and it isn't recorded. So I don't have a special isolated watch, it worked a particular way as it should. Apple obviously removed functionality (probably to encourage those with S0 to sell and upgrade).

I reported both to Apple already during WatchOS4 beta because the way it worked in WatchOS3 was better.