Xiaomi 4 Lite vs 4 vs 4 Pro

In this Xiaomi 4 Lite vs 4 vs 4 Pro review, we will compare the three recently released Mi Smart Air Purifiers of the fourth generation with each other.

Is the small and attractively priced Smart Air Purifier 4 Lite everything you need? Should you rather go with the Smart Air Purifier 4? Or does it even make sense for you to invest in Xiaomi’s new flagship model, the Smart Air Purifier 4 Pro?

This side-by-side comparison will help you find out.

Coverage Area

25 – 43

28 – 48

35 – 60

CADR (Particles)

360 m³/h

400 m³/h

500 m³/h

CADR (Formaldehyde)

120 m³/h

150 m³/h

200 m³/h

Working Noise

36 – 61 dB

32 – 64 dB

34 – 65 dB

PM 2.5 Sensor

Yes

Yes

Yes

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Comparison: Xiaomi 4 Lite vs 4 vs 4 Pro – What are the Differences?

Coverage Area & Efficiency

With a coverage efficiency of120m²/h, the Mi Air Purifier 4 Lite is suitable for rooms of up to 43m² – slightly less than its bigger brother at 48 m². The 4 Pro, on the other hand, has an effective coverage area of up to 60m² and comes with a coverage efficiency of 166m²/h.

Unpurified air can now be drawn in from all four sides and then leaves the device through the top. A360° three-dimensional circulation system available inside all three of the devices ensures that the freshly cleaned air is distributed to every corner of the room.

Winner: 4 Pro

25 – 43

28 – 48

35 – 60 m²

Clean Air Delivery Rate

Purifying 6,000 liters of air per minute, the Clean Air Delivery Rate (CADR) of the Mi Air Purifier 4 Lite stands at360 m³/h – again slightly less than the 4. The 4 Pro is able to remove particles from 500m³/h and is also the best choice when it comes to dealing with formaldehyde.

A three-in-one filter allows the 4 Lite, 4, and the 4 Pro to eliminate up to99.97% of 0.3 μm particles. The primary filter, Xiaomi’s own High-Efficiency Filter, and an activated carbon filter remove health risks including PM 2.5, PM 10, pollen, pet hair, and even odor.

Winner: 4 Pro

360 m³/h (Particles), 120 m³/h (Formaldehyde)

400 m³/h (Particles), 150 m³/h (Formaldehyde)

500 m³/h (Particles), 200 m³/h (Formaldehyde)

Introducing the Xiaomi Smart Air Purifier 4 Series

Working Noise

In night mode, the Mi Air Purifier 4 does have the lowest noise level of the three at just 32 decibels (dB). That said, you almost certainly won’t be able to notice the difference of just 1 dB compared to the smaller 4 Lite and 2 dB compared to the bigger 4 Pro.

When air pollution levels are especially high, the powerful 4 Pro reaches a maximum noise level of up to 65 dB. Thanks to the integrated auto mode, the 4 Lite, 4, and 4 Pro are all able to detect when air quality improves and will decrease speed (and noise levels) accordingly.

Winner: 4

33 – 61 dB

32 – 64 dB

34 – 65 dB

Sensors & Display

High-precision laser sensors inside all three models detect the concentration of particles, the temperature, and the humidity in real-time. The Mi Air Purifier 4 Lite shows this information on a LED display, while the 4 and 4 Pro come with a more advanced OLED touch screen.

To make it easier for you to quickly assess the current air quality even when you are standing across the room, the three devices also showcase the current pollution levels using an easy-to-understand three-color (4 Lite) and four-color (4 and 4 Pro) light strip, respectively.

Winner: 4, 4 Pro

Laser / LED Display

Laser / OLED Display

Laser / OLED Display

Introducing the Xiaomi Smart Air Purifier 4 Pro

Connectivity & Compatibility

All three devices can be monitored and controlled remotely through the Mi Home app on your smartphone via a Wi-Fi connection. Furthermore, you can also interact with your air purifier using voice commands – all of them work with Google Assistant and Alexa.

Winner: Draw

Yes / Google Assistant, Alexa

Yes / Google Assistant, Alexa

Yes / Google Assistant, Alexa

Weight & Dimensions

In the final round of this Xiaomi 4 Lite vs 4 vs 4 Pro comparison, we will have a quick look at the weight and dimensions of the air purifiers. Taking up less space than an A4-sized paper, the Mi Air Purifier 4 Lite is unsurprisingly both the smallest and lightest model of the three.

Winner: 4 Lite

240 x 240 x 533.5 mm, 4.8 kg

250 x 250 x 555 mm, 5.6 kg

275 x 275 x 680 mm, 6.8 kg

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Conclusion: Xiaomi 4 Lite vs 4 vs 4 Pro – Which is the Best Air Purifier?

Despite its small size, the Smart Air Purifier 4 Lite is more powerful than the bigger devices of the third generation of Xiaomi air purifiers. In combination with the attractive pricing, it makes the 4 Lite a great choice for smaller rooms.

For more performance, opt for the Smart Air Purifier 4. It is able to cover slightly larger rooms and also beats the 4 Lite in terms of coverage efficiency and CADR. At the same time, it is the quietest model of the three when set to night mode.

Lastly, if you have a larger room or live in an area with severe air pollution, you will want to go with the even more powerful Smart Air Purifier 4 Pro. It is capable of removing more particles and formaldehyde, but is still surprisingly quiet at the same time.

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