April 20, 2024

Amazfit Active vs Redmi Watch 4: A feature-by-feature breakdown

Two solid mid-range smartwatch offerings are the Amazfit Active and Redmi Watch 4. Launched in October and November 2023, respectively, they target users looking for a mix of fitness tracking, health monitoring, and smartwatch functionalities. . For now we are still waiting for the international availability of the Redmi watch, but it is expected to arrive any day now.

Essential reading: The best fitness trackers and health devices.

This comparison article delves into the nuances of these two devices, examining their design, functionality, and overall user experience. Read on to find out how they compare.

Key takeaways

Amazfit Active offers a more feature-rich experience with additional smartwatch capabilities, aimed at users looking for a complete wearable device. The Redmi Watch 4 appeals to budget-conscious consumers as it offers essential health and fitness features in a simple yet effective package.

View on Amazfit / Redmi; See on Amazon (Amazfit Active).

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Technical specifications
Bottom line

Amazfit Active vs Redmi Watch 4: hardware

look and feel

Starting with the appearance, Amazfit Active adopts a square shape, made from a combination of aluminum alloy and plastic, with a special mix of stainless steel and plastic for the Lavender Purple variant. This gives it a modern and versatile look, suitable for both casual and formal wear. The Redmi Watch 4, although also square, is differentiated by a plastic back and an aluminum frame with a stainless steel finish, which offers a more robust and durable feel.

The Active features a single button, emphasizing a minimalist design. The Redmi Watch 4, on the other hand, includes a rotating crown as a physical button, adding a classic watch element that provides a tactile and intuitive way to navigate the watch interface.

Screen, color options, water resistance.

Both watches feature AMOLED displays, but the Amazfit Active has a slightly smaller 1.75-inch display compared to the larger 1.97-inch display on the Redmi Watch 4. The Redmi Watch 4 also offers a higher maximum brightness , which improves visibility in various lighting conditions.

Of course, you have some color options. But the Amazfit Active offers more variety. Your options include Midnight Black, Petal Pink, and Lavender Purple. The Redmi Watch 4 sticks to the classic black and white, attractive to users who prefer more basic color combinations.

Both watches have the same water resistance rating of 5 ATM. This makes them suitable for swimming and other water-related activities.

Sensor technology

Moving on to sensor technology, the Amazfit Active is equipped with the BioTracker PPG sensor, expert in accurate heart rate monitoring. The company doesn’t say which version of the sensor, but we suspect it is BioTracker 4.0. This is complemented by an accelerometer for motion tracking, a geomagnetic sensor for orientation and a unique temperature sensor, expanding its reach for health and environmental monitoring. Its GPS connectivity is comprehensive and supports systems such as GPS, Galileo, Glonass, Qzss and Beidou, ensuring reliable location tracking globally. However, it lacks NFC, which could be a limitation for users who prefer contactless payments. A standout feature of the Amazfit Active is its music storage capacity, allowing up to 250MB of space for music, satisfying users who enjoy having their playlists close at hand during workouts or daily routines.

In contrast, the Redmi Watch 4 also features a heart rate monitor, but ups the functionality with a 4-channel PPG sensor for more detailed heart rate data. It includes an accelerometer, compass, gyroscope and SpO2 sensor to monitor blood oxygen level. Like the Amazfit Active, it is compatible with a wide range of GPS systems, including GPS, GLONASS, Galileo, BDS and QZSS. One advantage of the Redmi Watch 4 is its NFC support, making it more attractive to users who rely on contactless transactions, although this feature depends on the region. However, it doesn’t offer music storage, which could be a disadvantage for those who prefer to listen to their music directly on the device.

Battery duration

Both the Amazfit Active and Redmi Watch 4 offer impressive battery life, but with some differences to suit different user needs. The Amazfit Active has a battery life of up to 14 days with normal use, expandable to 30 days in battery saving mode and up to 10 days with intensive use. This makes it a reliable option for those who need a balance between regular and heavy use.

On the other hand, the Redmi Watch 4, powered by a 420 mAh battery, promises about 20 days of battery life with normal use and 7 days with more intensive use, including the always-on display feature. The inclusion of fast charging on the Redmi Watch 4 adds convenience and significantly reduces downtime.

Amazfit Active vs Redmi Watch 4: technical specifications

Here is a detailed comparison table of technical specifications for Amazfit Active and Redmi Watch 4:


Amazfit Active

Redmi Watch 4

Release date

October 2023

November 2023

Box Material

Aluminum Alloy + Plastic, Stainless Steel + Plastic (Lavender Purple)

Plastic back, aluminum frame with stainless steel finish.

Physical buttons


1 – rotating crown





42.36 x 35.9 x 10.75mm


Display type


AMOLED, 600 nits (peak)


390 x 450 pixels

450 x 390 pixels

Screen size

1.75 inches

1.97 inches

Weight (without strap)

24 grams

31.5 grams


BioTracker PPG, Acceleration, Geomagnetic, Temperature

Accelerometer, 4-channel PPG sensor, compass, gyroscope, SpO2


5 ATMs

5 ATMs


GPS, Galileo, Glonass, Qzss, Beidou


Built-in speaker








Yes (market/region dependent)

music storage

Yes (up to 250 MB of music space)



bluetooth 5.2

bluetooth 5.3

Cellular connectivity



Battery Type



Battery duration

14 days in normal mode, 30 days in limited functionality, 26 hours in GPS mode

Up to 20 days of typical use, 10 days with AOD mode, 30 days in long battery mode


ZeppOS 2



Midnight Black, Petal Pink, Lavender Purple

Black White

typical RRP


$75 (in China)

Amazfit Active vs Redmi Watch 4: Features

The Amazfit Active is well equipped for health monitoring. It has all the basics, including a geomagnetic sensor and a temperature sensor. They improve their environmental and health monitoring capabilities. The watch supports a variety of sports modes and is powered by Zepp Coach, which offers advanced running support features such as track running mode, intelligent trajectory correction, and virtual pacemaker. Additionally, it provides a live stream of sports data, a feature not found on the Redmi Watch 4. Amazfit Active also excels at monitoring sleep quality and offers a readiness score, giving users an evaluation general of your physical condition.

On the other hand, the Redmi Watch 4, while retaining essential health sensors such as a heart rate monitor and SpO2 sensor, supports more than 150 sports modes, catering to a wide range of activities and fitness routines. It includes a sleep and stress tracker, as well as a menstrual cycle monitor for women. The health and fitness tracking of the Redmi Watch 4 is enhanced by its operating system, HyperOS, which promises a smooth and feature-rich user experience.

Smartwatch-like functions

When it comes to smartwatch-type features, the Amazfit Active stands out with its Bluetooth phone calling capabilities, allowing users to make, receive, and answer calls directly from the watch. It also supports voice assistants, including Amazon Alexa and an offline voice assistant, and provides up to 250MB of music storage. Both watches offer features like Bluetooth phone music control, camera control (iOS only), phone call and SMS notifications, and quick reply support for Android users. The advantage of the Redmi Watch 4 is its NFC support for contactless payments.

Amazfit Active

Amazfit Active vs Redmi Watch 4: price

The Amazfit Active, with its wide range of health and fitness features, along with additional smartwatch capabilities like Bluetooth calling and voice assistant support, is priced at $150. This positions it as a mid-range option, offering a balance between functionality and affordability for users looking for a comprehensive smartwatch experience.

On the other hand, the Redmi Watch 4 has a cheaper price of approximately $70 in China. This lower price makes it an attractive option for those who prioritize essential smartwatch and fitness features without the need for the more advanced functionalities found in higher-priced models.

It is worth noting that we are still waiting for the international availability of the Redmi Watch. It should happen any moment. When available, expect it to sell at a slightly more expensive price than in China. Probably around $100.

Amazfit Active vs Redmi Watch 4: final thoughts

The Amazfit Active and Redmi Watch 4 stand out in their own right. The Amazfit Active, with its sleek design, array of sensors, music storage, and additional smartwatch features like Bluetooth calling and voice assistance, justifies its higher price for those looking for a more well-rounded device.

The Redmi Watch 4, while more basic in comparison, offers solid health and fitness tracking capabilities, a larger display, and an affordable price, making it an attractive option for those who need essential features without the frills.

View on Amazfit / Redmi; See on Amazon (Amazfit Active).

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