Xiaomi Mi Band 2 Smart Bracelet with Optical Heart Rate Sensor and OLED Display

The Xiaomi Mi Band 2 is a straightforward fitness tracker built around core monitoring functions: an optical heart rate sensor, step counting via an accelerometer, and smartphone notifications via Bluetooth. It is designed for users seeking basic activity data without complex features, offering a 0.42 inch OLED touchscreen for at-a-glance information. With an IP67 waterproof rating, it withstands hand washing and rain, while its 20 day battery life from a 70mAh cell reduces charging frequency. The adjustable strap ensures a secure fit for wrists measuring between 155mm and 210mm, making it a practical choice for daily wear.

Features and Construction

The Mi Band 2 focuses on essential tracking through specific hardware components. Its construction prioritises lightweight functionality, using plastic and aluminium to keep the unit weight at just 7g.

Material and Build

The main housing is constructed from plastic and aluminium, contributing to the device's low 7g net weight. The wrist strap is made from thermoplastic elastomers, a flexible material that allows for the adjustable fit, and is secured with an aluminium clasp. This material choice provides durability for daily use while maintaining comfort.

Size and Practical Fit

The device features a 0.42 inch OLED display, providing a clear interface for checking time, heart rate, and step count. The wrist strap has a total length of 235mm and is adjustable between 155mm and 210mm, accommodating a wide range of adult wrist sizes. This adjustability, combined with the lightweight build, helps ensure the band stays securely in place during movement.

Uses and Placement

This smartband serves as a basic activity monitor and smartphone companion. Its functions are geared towards everyday tracking and convenience rather than specialised athletic training.

Event or Professional Use

For general fitness tracking, the optical heart rate sensor and pedometer provide data on daily activity levels and resting heart rate. The IP67 waterproof rating allows the band to be worn during activities where it might be exposed to rain or splashes, such as running or cycling. The message push function can display notifications from a paired phone, which may be useful for staying informed during workouts.

Everyday Home Use

As a daily wearable, the Mi Band 2 functions as a wrist-worn pedometer and heart rate check device. The 20 day battery life means it requires charging less than once every three weeks under typical use. The alarm clock function and ability to receive call and message alerts make it a simple extension of your smartphone, while the IP67 rating means it does not need to be removed for hand washing.

Benefits and Buying Value

The value of the Mi Band 2 lies in its focused functionality and practical design. It offers specific monitoring tools without unnecessary features that can increase cost or complexity.

Reuse and Low Maintenance

The device is designed for continuous wear, with a waterproof build that avoids the need for frequent removal. The long 20 day standby time minimises charging interruptions, and the simple USB charging via the included dock is straightforward. The strap material is wipe-clean, requiring no specialist care.

Why Choose This Product

This smartband is a suitable choice for users who want basic heart rate and step tracking with smartphone notifications, without advanced sports metrics or GPS. The combination of an optical heart rate sensor, OLED display, and 20 day battery in a lightweight, waterproof package addresses fundamental activity monitoring needs. Its compatibility with Android 4.4+ devices makes it accessible to a wide range of smartphone users.