Heart rate data not populating on iPhone 16 Plus

Well, I’m trying to learn what your iPhone is doing. I’ll take it by your lack of answer my question that your iPhone takes longer.

Next step is to force restart both devices. Please follow the steps in the support articles I linked below.

Force Restart Apple Watch - Apple Support

Force restart iPhone - Apple Support

Apple Watch and iPhone typically sync at night. Please make sure your iPhone and Watch are both connected to a charger, are connected to WiFi and Bluetooth and near each other. Do this for a week or so and let’s see what happens.

You’re getting ahead of diagnosing the issue. Please slow down a little and let’s try to resolve this. 😀

Data doesn’t download immediately. It may take multiple days before the data is available on your iPhone.

Have you unpaired and re-paired your iPhone and Apple Watch yet?

How long are you waiting? Mine takes about 45 seconds to populate with the data.