can't get current heartRate (FR45)

Hi guys,

Sorry if this is stupid, but I'm having issue to get current heart beat working with FR45 were it is fine with Fenix 6. I'm writing the very first app IQ.

Using :

hrate = Act.getActivityInfo().currentHeartRate; -> This works on my Fenix 6X pro, but NOT in the Forerunner 45 of my daughter !

hrate is null on the FR45... can't understand. The sim shows value when I simulate data.

I give a lot of trials, with some examples form there, but I was not able to make it work on this FR45.

Instead I tried:

var hrIterator = ActivityMonitor.getHeartRateHistory(1, true);

var previous = hrIterator.next();

hrate = previous.heartRate.format("%02d"); -> This is working on the FR45, but only updated once per minute...

If someone can help, that will be appreciated. I'd like to understand my mistakes and get the current heart rate on the FR45.

BR,

0 jim_m_58 over 4 years ago

Here's a post with code that works on any device with OHR. On the fr45, you fall back to history which only changes every minute or two.

The fr45 is running CIQ 1, while new devices have CIQ 4

https://forums.garmin.com/developer/connect-iq/f/discussion/281641/fr45-preinstalled-watch-face-code/1352663#1352663

0 Litfiba over 4 years ago in reply to jim_m_58

Hi Jim,

Thx a lot for your really fast reply ;-)

So.. If If understand right, not possible to get live heart rate en FR45. But from the developer guide, that says the class function is available from API level 1.0.0. which should be okay.

BR,

0 jim_m_58 over 4 years ago in reply to Litfiba

But understand that not all things are in all app types. Watch faces in general are limited, A bit of trivia here - Activity.Info.currentHeartRate always returns null with a Fenix5x watch face, and in that case it's due to having a separate display processor.