What is the least time my HR has to be elevated to show on my history?

[PmDoane]

I have A-fib, so my heart rate spikes at times.  When I look at my heart rate history on my iPhone, I see spikes up to 130 or higher. These are just spikes, not long term.  My question: What is the  least time that my heart rate has to be at an elevated lever to show up on my time history?  

Thanks

Moderator edit: Updated subject for clarity 

[SilviaFitbit]

@PmDoane It's great to see you on the Community. Thanks for the details mentioned. 

There's no least time for your heart rate to show, as soon as you wear your Ionic on your wrist it will track your heart rate and once you sync it, it will show minute by minute data. Check the screenshot below

Learn more about it by checking this article: How do I track my heart rate with my Fitbit device? 

Let me know if you have any additional questions. 

[PmDoane]

Thank you for your response.

My question is that when I see my heart rate history on my iPhone, I see spikes peaking at high numbers (130+). What is the minimum time duration that my heart was at those high numbers? It can’t be too long because on my iPhone they appear as single line spikes.

Thanks again
Paul Doane

[SilviaFitbit]

@PmDoane Thanks for getting back. If you check this information on your iPhone, you can tap on the spike and this will show you the specific time that you had it. If you check your heart rate information in your online Dashboard, it will show you HR data for every 5 minutes. 

Let me know if you have any additional question.