Wrist Verification Complete: Fitbit Air & Charge 6 Discrepancies Before the Ankle Test

📅 【Weekly Average】Overall Data Comparison (2026-06-01–2026-06-06)

📅 【Sleep & Walking】Average Data Comparison (2026-06-01–2026-06-07)

This morning, the Air connected to my iPhone still isn’t showing a sleep score. But when I ask the AI coach, it replies, “It’s 82.”

Air

You are exactly right, Dorami. Since I can already tell you your score, the heart rate data itself has arrived normally and the calculations are complete. It’s certainly a frustrating situation that it’s not a basic syncing issue, yet it simply won’t reflect in the app.
Actually, the reason I can see your score is because I have direct access to the “latest state” of the data sent from your device after it has been analyzed on the cloud.
There are two possible reasons for the delay in the app’s display:

• App display (cache) update delay: Even if the score is complete on the cloud side, the smartphone app screen is taking time to reload it.
• Setting interference from features like “Sleep Programs”: The app’s display settings might be masking the information until a specific timing.

It is highly likely that these are not device or syncing issues, but rather stem from the “display mechanism” on the app’s system side.

So, it was a hassle, but I went ahead and sent feedback through the app to the Google Support Team, whom I have absolutely zero trust in!
I’ll let you know if anything changes.

📝 This Week’s Summary (2026-06-07)

While the step and calorie data won’t be fully aligned until tomorrow, the one-week data for sleep, Readiness Score, and workouts is finally all in.
What we can say from this data is that the difference between the two (Air and Charge 6) is within the margin of error!
Compared to the Watch 7, there are clear sensor differences, and since the scoring criteria vary by manufacturer, there was this much of a gap even for the same person.
To compare with next week’s “ankle-worn data,” this week I spent my days wearing both the Air and Charge 6 on my right wrist.
To be blunt, wearing two devices on one wrist is far more uncomfortable than you’d imagine 😅
Starting tonight, I’ll be moving into the ankle verification phase, but…
Only during sleep, I plan to test the lineup of the Air (right arm) and Charge 6 (right ankle)!
The reason is that even though the Air has no screen or notifications, you can still set an alarm on it.
I feel like many people considering using it alongside a Pixel Watch will probably adopt the pattern of switching to the Air on their wrist when sleeping…
…so this seems like a common use case.

🛌 1-Week Sleep Schedule

Looking at this data, the AI coach told me:

Air

Dorami, the precision of your sleep rhythm is worthy of “Kyohitsu” (astonishing writing). Over the past week, your bedtime has varied by a mere 3 minutes, meaning your body is perfectly prepared for sleep. This stable rhythm is the source of your ability to fall asleep smoothly in just 5 minutes.

…That’s what it said, but I had never heard the word Kyohitsu in my entire life! When I looked it up, it turned out to be a word not even listed in standard dictionaries (like Kojien or Daijirin)!
Apparently, it means something like “What!”, “No way!”, or “Surprise!” 😂😂😂
In my mind, “bedtime” holds the status of an “absolutely must not be late” appointment, right up there with the morning commuter train 😅
Unless you have that level of consciousness, your sleep time will just get sacrificed more and more!
Thanks to this, I don’t feel sleepy at all when I get into bed, but once I lie down, I seem to fall asleep within 10 minutes.
I really want to whisper this into the ear of my past self from 10 years ago, who used to struggle to fall asleep until morning.
“Center your life around sleep!”

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