How to set up a Xiaomi hygrometer watch: a complete guide with step-by-step instructions

Xiaomi’s built-in hygrometer watch is not just a time-tracking accessory, but a full-fledged microclimate monitoring tool. Devices like the Mi Band 7 Pro, Xiaomi Watch 2 Pro or Haylou Solar LS05 (compatible with Xiaomi’s ecosystem) can measure humidity, temperature and even atmospheric pressure. However, many users face problems: readings are confused, data is not synchronized with a smartphone, and calibrating sensors seems too complicated.

In this article, we will discuss how to adjust the hygrometer on Xiaomi watches, avoid typical errors and achieve maximum accuracy of measurements. You will learn which models support the function, how to calibrate the sensors manually, and what to do if the watch shows improper humidity.

Which Xiaomi watches are equipped with a hygrometer?

Not all Xiaomi smartwatches and fitness bracelets have a built-in humidity sensor, a feature that is available primarily in premium or specialty models. Here is the current list of devices with a hygrometer (2026):

• 📱 Xiaomi Watch 2 Pro – flagship with humidity, temperature and barometer sensors.
• 🏃 Mi Band 7 Pro - budget version with a base hygrometer (accuracy lower than the clock).
• ☀️ Haylou Solar LS05 — compatible with Mi Fit, supports humidity measurement.
• 🌡️ Xiaomi Mi Temperature and Humidity Monitor 2 is not a watch, but is often used with it for accurate measurements.

If your model is not included in the list, check the specifications on the official website or in the Mi application. Fit/Zepp Sometimes the manufacturer adds support for the hygrometer through firmware updates – for example, this was the case with the Mi Band. 6 in some regions.

Preparation for setting up: what to do before calibration

Before you start setting up your hygrometer, make sure your watch is ready to go.

1. Update your device to the latest version via Mi Fit or Zepp Life. Outdated software can cause measurement failures.
2. Charge the clock to at least 50% – calibration of the sensors consumes additional energy.
3. Install related applications: 📲 Mi Fit – for most models. 📲 Zepp Life for Xiaomi Watch 2 Pro and some other. 📲 Haylou Fun – if you have Haylou Solar LS05.

Turn on Bluetooth and GPS

Also check that your phone has an up-to-date version of Android (8.0+) or iOS (12.0+).Older operating systems may not support all of the hygrometer's features.

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If the watch is not synced with the app, try rebooting it by holding the power button for 10 seconds.

Step-by-step: how to set up a hygrometer on a Xiaomi watch

Now, the main thing is to set up the humidity sensor, and it's good for most models, but there may be minor differences in the menu.

Step 1: Activate the sensor in the clock settings

By default, the hygrometer can be turned off to save charge.

1. On the watch, go to Settings → Sensors → Humidity (or Environment in English version).
2. Activate the switch to Enable the hygrometer (or Humidity Sensor).
3. Select the frequency of measurements: Auto, Every Hour or Manual.

Step 2: Calibration of the sensor

You need to calibrate the clock to give you accurate data.

1. Place your watch next to a reference hygrometer (e.g., Xiaomi Mi Temperature and Humidity Monitor 2) for 12 to 24 hours.
2. Compare readings. If the difference is greater than ±5%, perform manual calibration: Settings → Sensors → Calibration → Humidity → Enter correction factor
3. For models without manual calibration (e.g. Mi Band 7 Pro), use software reset: Settings → Reset → Reset sensors

Step 3: Configure the data display

To have the humidity and temperature displayed on the home screen:

1. In the Mi Fit app, go to Device Profile → Watch Screen → Widgets.
2. Add the weather widget or microclimate.
3. Set up the display order: temperature, humidity, pressure.

Check the battery charge (minimum 50%) |

Update the watch firmware |

Place the reference hygrometer next to |

Turn on Bluetooth on your smartphone |

Synchronize data in Mi Fit-->

Common Mistakes and How to Avoid Them

Even after setting up the hygrometer on Xiaomi watches correctly, here are the most common problems and solutions:

Critical error: If the watch is 99-100% humidity under normal conditions, after calibration, it's a sign of a sensor malfunction, and only the service center will help.

Synchronization with Mi Fit and Xiaomi Smart Home

Not only can you look at the hygrometer data on your watch, but you can also integrate it into the Xiaomi ecosystem.

Exporting data to Mi Fit

To maintain humidity and temperature in the application:

1. Open Mi Fit and go to Devices → [Your Watch] → Environmental Data.
2. Enable the option to save measurement history.
3. Set up critical notifications (e.g., humidity above 70% or below 30%).

Integration with a smart home

If you have a Xiaomi gateway (like Mi Home Gateway), you can automate climate control.

• 🌬️ Connect the watch to Mi Home via Add the device → Others. → Wearable devices.
• 💧 Set up scenarios: Under humidity <40% humidifier, when humid, >70% air-drift.

This will require automation via Mi Home or Yandex Alice (if the watch is supported).

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Smart home synchronization works only for Mi Band 7 Pro and Xiaomi Watch 2 Pro watches. Budget models (such as Mi Band 6) do not support this feature.

How to check the accuracy of the hygrometer without a reference device

Not everyone has a professional hygrometer to calibrate, but there are 3 reliable ways to test the accuracy of Xiaomi watches at home:

Method 1: Salt test

Take a glass of water, add salt (1:4 by volume) and stir. Place the watch in an airtight bag with the glass for 8-12 hours. The humidity inside should stabilize at 75%. If the watch shows a value in the range of 70-80%, the sensor works correctly.

Method 2: Ice.

Fill the container with ice, add some water, and place the watch side by side (without touching the ice!). After 3-4 hours, the humidity should be 95-100%, and the temperature should be 0-2 ° C.

Method 3: Comparison with weather services

Place your watch on a windowsill (away from batteries) and compare it to data from Yandex Weather or AccuWeather applications. The difference should not exceed ±3% for humidity and ±1°C for temperature.

⚠️ Warning: Do not use wet towels or hot steam for the test - this can damage the sensor due to condensation!

Firmware Update: Why It Matters for Hygrometers

The manufacturer regularly releases updates that improve the accuracy of the sensors. For example, in firmware 1.14.6.12 for Xiaomi Watch 2 Pro was fixed bug with inflated humidity readings at temperatures below +10 ° C.

How to update firmware:

1. Open Mi Fit or Zepp Life.
2. Go to the Device Profile → Software Update.
3. If a new version is available, click Update and wait until it is completed (don’t turn off Bluetooth!).

After the update, be sure to reset the sensors (Settings → Sensors → Reset) so that the new algorithms work correctly.

1. Reset the clock.

2. Remove them from the application and connect again.

3. Use another smartphone to update.-->

FAQ: Frequent questions about setting up a hygrometer on Xiaomi watches