# Wearables and lab results: different data, different job

> Doctano turns the lab reports you already have into one private, source-linked health timeline, with an AI that answers from your own results.

This is the Markdown version of https://doctano.com/vs/wearables.

## The short answer

A wearable samples the body continuously outside a lab. A lab report measures a sample in a laboratory, against a range printed for that test. Neither replaces the other, and a watch cannot produce a lipid panel or a CBC. Doctano works on the lab report side: it reads the file, normalizes results, and keeps the history.

## What a wearable is actually measuring

A wearable measures signals on the surface of the body, often many times a day: movement, heart rate, sleep patterns, and similar data. The value of that stream is its shape. It can show that a week was different from the week before, or that a night was short. It is not a blood test, and it does not know what is happening inside a vein.

Those signals are also noisy. A change can follow sleep, stress, heat, caffeine, or a device being worn differently. The number is real; the explanation is not in the data.

## What only a lab report can give you

A lab report starts with a sample. Someone draws blood, the laboratory measures specific markers, and the result comes back with a value, a unit, a reference range, a panel name, and a date. A lipid panel and a CBC are examples: they are measurements of substances in your blood, not estimates from a sensor.

That structure is what makes a result comparable. The range is printed for that test at that lab, and the date places it. A tracker can then classify the result against its own range, keep it next to earlier results, and link it back to the document.

## Where Doctano fits

Doctano is the place for the lab report side. You upload a PDF or photo, and it extracts the test names, values, units, ranges, panels, and report dates, maps markers to LOINC codes, and normalizes names and units across labs. Each result is classified against its own report's range as healthy, borderline, critical, or unknown, and those labels are not diagnoses. Every value links back to the original report, and the report page has View original.

On top of that, it keeps a timeline, a per-marker history, and an overall health score for each profile. DoctanoAI answers from the selected profile's values, history, out-of-range results, and report text, and it can link back to reports. It does not diagnose, prescribe, or recommend dosages, and it can be wrong.

A wearable and a lab report answer different questions. A tracker does not turn one into the other, and it does not make a sensor into a blood test.

## Side by side

| What it measures | A wearable | A lab report |
| --- | --- | --- |
| What is measured | Movement, heart rate, sleep, and similar signals | Markers in a blood sample, with units and ranges |
| How the sample is obtained | Sensors worn on the body | A blood draw, usually at a lab |
| How often | Continuously or through the day | When a test is ordered, not continuously |
| Who reports it | The device and its app | The laboratory that ran the test |
| What a change means | A shift in a signal, with no context | One measurement against a range printed for that test |
| Whether it holds the original record | Raw data in an app, not a lab report | Yes, on paper or PDF, if you keep it |
| Whether it can be trended against blood values | Not by itself | Only when reports are put on one timeline |
| What it cannot do | Produce a lipid panel or a CBC | Show what happened last Tuesday |

## The honest recommendation

**Stay with the wearable if** you want daily trends in movement, sleep, and heart rate, you are not looking for blood values right now, and you want a nudge rather than a record with source documents.

**Add Doctano if** you have lab reports from more than one lab or year, you want a CBC or lipid panel on one timeline with its ranges, you want to check a value against the report it came from, or you manage reports for parents or other family.

Keep the wearable for the life it measures and keep the reports for the measurements a lab made. Neither is a substitute for the other, and neither is a diagnosis. A clinician can put the two together with the rest of your history.

## Questions

**Can a wearable replace a blood test?**
No. A wearable samples signals on the body. A lipid panel or a CBC needs a blood sample measured in a laboratory. They measure different things on different timescales.

**Can Doctano read data from my wearable?**
Doctano works from the lab reports you upload: PDF, PNG, JPEG, or TIFF, up to 50 MB each. Its timeline is built from those results, not from wearable data.

**Why do a wearable trend and a lab value move differently?**
They are different measurements on different timescales. A wearable samples through the day; a lab report is one sample at one time. A difference between them is not a diagnosis, and a clinician can explain what matters for you.

**How does Doctano classify a result?**
It classifies each result against the reference range on its own report as healthy, borderline, critical, or unknown. A result without a usable range stays unknown. These labels are not diagnoses.

## Links

- [Compare hub](https://doctano.com/vs/)
- [Health records on a phone](https://doctano.com/vs/apple-health-records)
- [Personal health record apps](https://doctano.com/vs/personal-health-record-apps)
- [Lab report tracker](https://doctano.com/lab-report-tracker)
- [Homepage](https://doctano.com/)
- [Privacy Policy](https://doctano.com/legal/privacy)