If you've ever bought or sold a used Xiaomi smartphone, you've probably come across the term "vitality score," which is a feature that's often mentioned in ads, but not everyone understands what it really means. Unlike standard specs like battery capacity or screen condition, vitality is a complex metric that can tell you a lot about the "health" of the device.
In this article, we’ll look at what’s behind the term, how to check it correctly (including on Redmi, POCO and Xiaomi flagships), what’s considered normal and what you should be alerting, and why some sellers are trying to trick customers into manipulating this parameter, and how to avoid getting caught in the tricks of buying a used Xiaomi or just wanting to assess the condition of your device, this information will be useful.
What is the vitality in Xiaomi smartphones?
The term vitality in the context of Xiaomi smartphones refers to a comprehensive measure of battery wear calculated based on data on the number of charging cycles, current capacity and other parameters, in fact, a digital expression of how tired the device’s battery is compared to a new one.
Unlike a simple percentage of wear (for example, in the iPhone), vitality in Xiaomi takes into account not only capacity, but also other factors:
- 🔋 Number of full charge cycles – how many times the battery has been discharged and charged by 100%.
- ⚡ Discharge rate – how fast the charge drops when used actively.
- 🌡️ Temperature operating conditions – overheating or use in the cold accelerate degradation.
- 📊 Stability of voltage – voltage fluctuations may indicate problems with the power controller.
It's important to understand that vitality is not the same as residual capacity. For example, a battery may have 85% of its original capacity, but because of unstable voltage or high internal resistance, its vitality will be rated lower, which is why this parameter is considered more reliable when evaluating used devices.
How to check the vitality on Xiaomi: official and informal ways
There are several ways to find out the battery life on Xiaomi, Redmi and POCO smartphones. The official method works only on some models and requires special code, and informal ones can give more detailed information, but will require the installation of third-party applications.
Method 1: Engineering menu (for supported models)
Some Xiaomi devices allow you to get the vitality data directly from the system menu.
- Open the Phone app.
- Enter the combination: ##4636###.
- In the menu that appears, select Battery Information.
- Find Battery Health or Vitality (the new models may show up as Battery status).
If this doesn't work, then your model doesn't support the vitality display through the engineering menu, and then you'll have to use alternative methods.
Method 2: AccuBattery App (for all Android devices)
One of the most popular battery monitoring applications is AccuBattery, which doesn't show the vitality directly, but it can calculate the approximate value based on capacity data and charging cycles. To get the most accurate data, the application needs to use at least 3-5 full charge cycles.
After data collection:
- Open the Health tab.
- Please note the Wear Estimate parameter.
- Compare the current capacity (Design capacity) with the nominal (Measured capacity).
Use the original charging unit
Charge your smartphone to 100% and discharge to 0% (calibration)
Make sure there are no root rights on the device (they can distort the data)
Check the battery temperature (optimally 20-30)°C)-->
Method 3: Using the Mi Flash Tool (for advanced users)
This is a method that works for those who are ready to work with firmware, and with the Mi Flash Tool you can get a full battery status log, including vitality, but it requires an unlocked bootloader and can be dangerous for beginners.
⚠️ Warning: Misuse of the Mi Flash Tool can lead to a device blink (completely inoperable).If you are not sure about your actions, it is better to use other methods.
Instructions:
- Download and install the Mi Flash Tool from Xiaomi’s official website.
- Connect your smartphone in Fastboot mode (clip Volume down + Power when the device is off).
- In the command line, type: fastboot getvar battery-info
- Find the line with the vitality parameter or health_status.
What are the values of vitality considered normal?
The vitality score is usually expressed as a percentage, where 100% is the state of the new battery, but even with new devices, this figure may be slightly lower due to factory tests.
| Vitality (%) | Battery status | Recommendations |
|---|---|---|
| 90–100% | Excellent. | The battery is almost like new. You can buy it safely. |
| 80–89% | Good. | It's a little wear-and-tear. The battery will last another 1-2 years. |
| 70–79% | Satisfactory | There's a lot of wear and tear. There's a lot of autonomy. |
| 60–69% | Bad. | The battery needs to be replaced soon. |
| Below 60% | Critical | The battery may suddenly shut down. Replacement is required. |
It's important to remember that a vitality below 80% is already considered a bargaining chip when buying a used device. Many sellers try to hide the real status of the battery by resetting charging cycle meters or using software to "cheat" diagnostic utilities. To avoid cheating, always check the vitality yourself, rather than relying on screenshots from the seller.
⚠️ Note: Some Xiaomi models (e.g. Redmi Note) 10 pro POCO X3 Pro) vitality may be displayed in format X/Y, where X is the current capacity and Y is the nominal capacity, 3800/4500 This means that the battery is worn out. ~15%.
Why can the vitality suddenly drop?
Sometimes, users are faced with a situation where the battery life drops dramatically in a short period of time, this can occur for several reasons:
- 🔥 Overheating – Using a smartphone at high temperatures (such as in direct sunlight or during intense gaming) accelerates the degradation of lithium-ion batteries.
- ⚡ Frequent deep discharges – if you regularly discharge your phone to 0%, it reduces battery life.
- 📱 Use of non-original chargers – cheap charging can deliver unstable voltage, which harms the battery.
- 🛠️ Software failures – sometimes errors in the firmware or power controller lead to incorrect display of vitality.
- 💧 Moisture infestation – even if the phone doesn’t fail right away, corrosion of the battery contacts can show up later.
If the vitality has dropped for no apparent reason (e.g., from 95% to 70% in a week), it may indicate:
- Problems with the charging controller.
- Battery bloating (in this case, it is urgent to replace the battery, as it is dangerous!).
- Resetting counters after firmware (sometimes the vitality is "zeroed",