How the morning Check-In works with wearable data

Overview

The Condition Check-In is the short morning question set: when you slept, how well you slept on a five-point scale, and how your body feels from a fixed list of states: refreshed, energized, good, stiff, tired, heavy, sore, headache, unwell, or pain.

It exists because the two kinds of evidence fail in opposite places. A watch measures overnight physiology you cannot feel and cannot report. You know things the watch cannot measure: that your knee hurts, that you have a headache, that last night was rough in a way no sensor logged. Grio scores both and lets each cover the other’s gap.

How it’s calculated

What the Check-In contributes

The Check-In produces its own 0–100 self-report score from three parts:

• Sleep duration, from the sleep window you reported.
• Sleep quality, from the five-point dot. The middle dot is neutral; each step away from it is worth a fixed fraction of a standard deviation on the same personal-deviation ruler the sensor signals use.
• Body states, which stack. Positive states add, negative states subtract.

That stack is bounded on both sides before it reaches the scoring curve, and the bound is deliberately asymmetric: a self-report is an ordinal answer, not a measurement, so it can pull the day down further than it can push it up.

How it combines with sensors

The Check-In is not a separate score shown beside the sensors. It is a contributor inside the same Condition Score, and the two interact in three specific ways:

1. It fills the sleep contributor when the sensors missed the night. Sleep carries a large share of the score. Without this fallback, a user whose watch was on the charger loses the heaviest contributor entirely and the score reads off HRV and resting heart rate alone, even though they told Grio how they slept.
2. It avoids double-counting. When Apple Health did record the night, the measured value drives the sleep contributor and the now-duplicated duration term is dropped from the Check-In’s own score.
3. It can carry the whole score. When no mature health baseline is available, a completed Check-In can produce the displayed numeric score from self-report evidence alone. In that mode the Check-In carries most of the weight, with previous-day activity load as the only other contributor.

Edge cases and fallbacks

• No Check-In and no health data: no score. Grio shows nothing rather than inventing a number.
• Check-In only: a numeric score from self-report.
• Health data only: a numeric score without the self-report contributor.
• Both: the full contributor set, with the duplicate sleep term removed.

How to read your score

The useful reading is the gap between what you reported and what the sensors saw. Three patterns come up constantly:

• You feel fine, the sensors look loaded: Common after a hard session or a late meal. Your current report has precedence: Grio must not contradict you, infer a symptom you did not report, or treat a wearable deviation as proof of stress.
• You feel wrecked, the sensors look normal: Equally real. Sleep debt, mental load, and illness that has not reached your heart rate yet all live here. The self-report contributor is what keeps the score from calling this a good day.
• Both agree: the least interesting case and the easiest to act on.

What to do with it

• Check in before you look at the score: Seeing the number first anchors the answer, and an anchored self-report is worth less as evidence.
• Report body states honestly, including the good ones: “Refreshed” is data. Leaving the list empty is not the same as reporting that nothing is wrong.
• Use it to overrule a message you disagree with: a positive Check-In can suppress a recovery-related contact: if its structured state is confidently positive, or its note says you feel fine, Grio stands down rather than repeating an observation you have already answered.

The Check-In is also how Grio learns your subjective baseline over time. Two weeks of “tired” is a different fact from one morning of it, and only the record can tell them apart.

Troubleshooting & FAQs

If I have an Apple Watch, is the Check-In pointless?

No. Sensors do not observe soreness, a headache, or feeling unwell, and they miss nights the watch was charging. The Check-In fills the sleep contributor when Apple Health has no night, and it adds a self-report contributor the watch cannot produce. It also has precedence in coaching: if you say you feel fine, Grio will not argue from a wearable deviation.

Does reporting that I feel great push my score up?

It moves it, within limits. Self-report is an ordinal answer rather than a measurement, so the body-state stack is bounded in both directions before it reaches the scoring curve. A wall of positive answers cannot override a night of clearly loaded physiology.

I logged my sleep in the Check-In and my watch also recorded it. Is it counted twice?

No. When Apple Health measured the night, the measured value drives the sleep contributor and the duplicated duration term is dropped from the Check-In's own score. The Check-In still contributes its sleep-quality rating and body states.