Aug 7, 2025BF1W-0079Right

Did the Pixel Watch 4 get blood oxygen monitoring?

Evan Blass: Pixel Watch 4 to add ECG sensor

The watch will support ECG, SpO2, breathing-rate, and heart-rate-variability measurements.

Evan Blass reported that the Pixel Watch 4 would support ECG, SpO2, breathing-rate, and heart-rate-variability measurements, joining over 40 exercise modes, according to Android Authority.

How to read this record

  1. What was reportedThe watch will support ECG, SpO2, breathing-rate, and heart-rate-variability measurements.
  2. Who said it, and whenEvan Blass reported it on Aug 7, 2025 in Android Authority.
  3. What happened, and whenPixel Watch 4 was announced on Aug 20, 2025, 13 days after this report.
  4. The verdict, and whyRightIt turned out the way this report said.Why: Pixel Watch 4 supports ECG and SpO2 and provides breathing-rate and heart-rate-variability measurements through Google health tracking.
What do these words mean?
Right
It turned out the way this report said.
Partly right
Some of this was right and some of it was not.
Wrong
It did not turn out this way.
Moving target
This was right about the plan at the time. The company then changed it.
Never settled
The company has announced the product and nobody ever confirmed or denied this.
Not comparable
This measured a different thing from the number the company published, so the two cannot be compared.
No outcome yet
Nothing has happened yet that would prove this right or wrong.
Not checked yet
The company has answered this. We have not finished checking this one.
Checked
Checked means the company has since given an answer and we compared it with what was reported. Details still waiting on an answer, details nothing can settle, details where the plan itself changed, and details we have not finished reviewing are all counted separately and are not part of that number.
Moving target
A moving target is a report that described the plan accurately at the time, on a product the company then changed. We count these on their own: it would flatter a reporter to call them right, and it would blame a reporter for a decision that was not theirs to call them wrong.
Reported by
Evan Blass
We read it in
Android Authority
Product
Pixel Watch 4
Read it at Android Authority →

The story of this report

  1. Aug 7, 2025Evan Blass reported it · Android Authority
  2. Aug 20, 2025Pixel Watch 4 was announced
  3. VerdictRightWhat it means, and why, is in the box above.

Who reported it

Evan Blass · Leaker

111 reports in the Reporting Record. Of the 98 we have checked, 97 held up. The other 13 are not part of that number: 1 moving target, 2 never settled, 4 not comparable, 6 no outcome yet.

Every report from Evan Blass →

What we know now

Our stories about Pixel Watch 4

Other reports about Pixel Watch 4

41 reports about Pixel Watch 4 from 6 sources. Of the 36 we have checked, 32 held up.

See all 41 reports about Pixel Watch 4 →

Questions about this report

Did the Pixel Watch 4 get blood oxygen monitoring?
Right. It turned out the way this report said. Pixel Watch 4 supports ECG and SpO2 and provides breathing-rate and heart-rate-variability measurements through Google health tracking.
Who reported it first?
Evan Blass reported it on Aug 7, 2025 in Android Authority.
How far ahead of the announcement was it?
That was 13 days before Pixel Watch 4 was announced on Aug 20, 2025.