Xiaomi Mi Smart Band 5 and 6: What’s the difference and what’s the best time to buy in 2026?

Why the Mi Band 5 and 6 Comparison Is Still Relevant

Xiaomi Mi Smart Band 5 and Mi Smart Band 6 remain among the most popular gadgets in Xiaomi’s lineup of smart devices, despite the release of new models. The reason is simple: they offer a balanced set of features at an affordable price, and their differences are not always obvious to the average user. Many still face a choice: take a proven “five” cheaper or pay for the “six” with improvements?

In this article, we will explore all the key differences between the two models, from design and screen to sensor accuracy and autonomy, and focus on those aspects that directly affect everyday use – for example, the Mi Band 6 was the first Xiaomi bracelet to support the development of the new model. SpO₂ (We're going to look at the oxygen saturation of the blood, without having to connect to a smartphone, which is important for monitoring sleep or exercise, and we're going to look at what's really in demand and what's not worth overpaying for.

If you’re already using one of the models or just planning to buy, this article will help you make an informed choice, and for those who doubt the relevance of the wristbands for 2020-2021, here are the reasons why they are still competitive against the latest Mi Band 7/8.

Design and Ergonomics: What Has Changed

At first glance, the Mi Band 5 and Mi Band 6 look almost identical: the same compact body made of matte plastic, removable strap and minimalist design.

The main difference is the screen. 6 It became larger: the diagonal grew with 1.1" before 1.56", a permission - c 126×294 before 152×486 This made the display of information more comfortable, especially for those who wear a wristband with a wide bone, but the body remained just as light (just a little bit). 12.8 d 11.9 d in the "five"), and the straps are completely interchangeable.

• 📏 Screen sizes: Mi Band 5 - 1.1, Mi Band 6 - 1.56" (42% more area)
• 🎨 Color options: the "six" appeared new shades of straps (for example, black with gold trim)
• 🔄 Strap compatibility: suitable from both models (width 18 mm)
• 💧 Protection: Both models have 5 ATM (you can swim, but you can't dive)

Another important improvement is the touchscreen, which in the Mi Band 6 is made stronger by 2.5D tempered glass, which reduces the risk of scratches, but the button under the screen is left only in the five — in the six it was removed, leaving only touch control.

Screen and interface: usability

The larger Mi Band 6 screen is not just a marketing ploy, it's a real improvement in the user experience, it puts up to 30 percent more text, and animations are smoother thanks to the updated processor, for example, notifications from messengers now display full, without cropping, and activity graphics look more detailed.

But there's a downside: autonomy has been reduced a little bit by the more energy-intensive display. If the Mi Band 5 was 14 to 15 days in standard use, the six would last 10 to 12 days in the same environment, a difference that's not critical, but it's worth considering for those who don't like to charge their gadgets often.

Both models are based on proprietary firmware Mi Fit, but Mi Band 6 has added new gestures, such as scrolling notifications with an up/down swipe instead of just tapping on the screen, and Always-on Display, which has significantly reduced the time.

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To save charge, turn off Always-on Display in the bracelet settings (Screen → Display Mode). This will extend the autonomy for 2-3 days.

Sensors and Measurement Accuracy: What Is Important for Health

Both models feature a standard set of sensors for fitness bracelets: accelerometer, gyroscope, heart rate sensor. However, the Mi Band 6 received two key improvements:

1. Sensor. SpO₂ — It measures blood oxygenation. In the Mi Band 5, it was a function, but it only worked when you connected to a smartphone. In the six, it became autonomous.
2. Improved sleep algorithm – now the bracelet better recognizes the phases of REM (Rapid sleep) and daytime sleep.

In practice, this means that the Mi Band 6 is suitable for more serious health monitoring, such as warning of possible hypoxia (lack of oxygen) during sleep or climbing mountains, but for athletes, the difference is not so critical, both bracelets accurately count steps and calories (an error of ~ 5-7%).

• ❤️ Heart rate: both bracelets measure heart rate every 1-5 minutes (configured in the app)
• 🏃 11 modes of Mi Band 5 vs 30 in Mi Band 6 (including yoga, boxing, dancing)
• 😴 Sleep monitoring: the "six" added analysis of daytime sleep and REM-phase
• 🩺 SpO₂: Mi Band 6 is not available without a smartphone

It's important to note that neither of these bracelets is a medical device, and they're indicative and they're not a substitute for a doctor's consultation, for example, in arrhythmia, both devices can malfunction.

Autonomy and charging: how long does the battery last

Official data from Xiaomi promises up to 14 days of operation for the Mi Band 5 and up to 15 days for the Mi Band 6. However, in practice, these figures are highly dependent on the use case.

The main battery eater in the Mi Band 6 is Always-on Display and frequent measurements. SpO₂. If you turn off these functions, the difference in autonomy is reduced to 1-2 days, but the charging time has increased, now it takes almost 2 hours to get a full battery instead of 1.5 for the five".

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For maximum autonomy, turn off automatic measurement SpO₂ And it's always-on display, and it'll extend the bracelet by 30 to 40%.

Both bracelets use the same magnetic docking station, but the cables are not interchangeable — the six have slightly changed the connector, but now the charging socket is less susceptible to dust.

Functionality and software

The main software for both models is the Mi Fit app (or Zepp Life in the newer versions), but the Mi Band 6 has several exclusive features:

• 📊 Advanced sleep analytics with daytime rest and REM-phase
• 🏋️ Automatic recognition of 6 types of training (only 5 in Mi Band 5)
• 🩸 Measurement SpO₂ without a smartphone (in the “five” required a connection)
• 🔊 Music control on the smartphone directly from the bracelet (play/pause, tracks)

And here's the missing NFC In both models, this feature appeared only in the Mi Band. 7. Neither of the bracelets supports Google Fit or Apple Health directly – sync is only through Mi. Fit/Zepp Life.

Another important point is the firmware updates, where Xiaomi continues to support both models, but the Mi Band 6 gets new features more often, for example, in 2023, it added stress tracking and breathing exercises that are not in the top five.

Cost and relevance in 2026

At the time of writing (2026), bracelet prices vary widely by region and seller:

• 💰 Mi Band 5: 1,500 to 2,500 ₽ (b/w or new residues)
• 💰 Mi Band 6: 2,000 to 3,500 ₽ (new, depending on the color)

Should you pay more for a six?

• ✅ Large screen and better readability
• ✅ Autonomous dimension SpO₂
• ✅ Advanced sleep analysis

Not if:

• ❌ You only need a pedometer and basic notifications
• ❌ You are not willing to sacrifice autonomy for additional functions.

The alternative is to look at the Mi Band 7 or 8, where NFC, more accurate sensors and better design have come into being, but if the budget is tight, the Mi Band 6 remains the best choice for price/quality.

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The Mi Band 5 is for basic fitness tracking, while the Mi Band 6 is for those who want a deeper health analysis without buying flagship models.

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