Xiaomi Mi Band 2: IP67 Waterproof Fitness Tracker with Heart Rate Monitor and OLED Screen

The Xiaomi Mi Band 2 is a lightweight, wrist-worn activity tracker designed to monitor key fitness metrics throughout your day. Weighing just 7g, it provides continuous optical heart rate monitoring, step counting, and smartphone notification alerts via its integrated 0.42-inch OLED touch screen. It connects to your Android smartphone using Bluetooth 4.0 BLE, requiring Android version 4.4 or later for full functionality. With an IP67 waterproof rating, it is built to handle sweat and rain, making it suitable for workouts and daily wear, while its 70mAh battery supports up to 20 days of standby time on a single charge.

Features and Construction

The Mi Band 2 combines several core tracking technologies in a compact, wearable format. Its construction focuses on durability and user comfort for all-day wear.

Material and Build

The device uses a combination of materials for different components. The central housing, which contains the display, sensors, and battery, is made from aluminium, providing a rigid and protective shell. The wrist strap is manufactured from a thermoplastic elastomer, a flexible and skin-friendly material that allows for a secure and comfortable fit. The overall net weight of the device is 7g, contributing to its unobtrusive feel during extended wear.

Size and Practical Fit

The included wrist strap has a total length of 235mm and is adjustable to fit wrist circumferences between 155mm and 210mm. This adjustable range accommodates a wide variety of wrist sizes. The 0.42-inch OLED screen provides a clear, readable display for checking the time, your current heart rate, step count, and incoming notifications without needing to access your phone.

Uses and Placement

This fitness tracker is designed for integration into daily life, from structured exercise to routine monitoring.

Event or Professional Use

For fitness enthusiasts, the optical heart rate sensor enables continuous monitoring during exercise sessions, providing data on exertion levels. The pedometer function tracks steps taken throughout the day, useful for setting and meeting daily activity goals. Its IP67 rating means it is protected against dust ingress and can withstand immersion in up to 1 metre of water for 30 minutes, making it resilient against sweat during intense workouts and exposure to rain.

Everyday Home Use

In daily life, the band serves as a convenient notification centre, pushing messages and alerts from your paired smartphone to your wrist via the OLED display. It also functions as a silent alarm clock, vibrating to wake you. The long 20-day battery life minimises daily maintenance, requiring charging less than twice a month under typical use, which is facilitated by the included proprietary charger.

Benefits and Buying Value

The value of the Mi Band 2 lies in its combination of essential tracking features, practical durability, and low-maintenance design.

Reuse and Low Maintenance

The device is built for repeated daily use. The IP67 construction protects its internal components from common environmental moisture. The thermoplastic elastomer strap is easy to wipe clean if it becomes soiled. With a typical input current of 45mA (and a maximum of 65mA) at 5V, recharging is straightforward with the provided cable, and the extended standby time means the device is ready to wear far more often than it is charging.

Why Choose This Product

This product offers a focused set of core smartband features—heart rate monitoring, activity tracking, and notifications—in a simple, affordable package. It is specifically compatible with a wide range of Android devices (version 4.4 and above with Bluetooth 4.0). The inclusion of an OLED touch screen on the device itself sets it apart from more basic band-only trackers, providing direct access to your data without needing a connected phone app open.