Video summary

Xiaomi 4 Lite Vs Xiaomi 4 Compact: What's the Difference?

Main summary

Key takeaways

Product Review

Product Reviewed

  • Xiaomi Air Purifier 4 Lite vs Xiaomi Air Purifier 4 Compact (both positioned as the two smallest models in Xiaomi’s 4th generation)

Key Features (Shared)

Both units include the same core approach to air cleaning:

  • 3-stage filtration
    1. Nylon mesh pre-filter
    2. High-efficiency filter (main filtration stage)
    3. Activated carbon (pellet-based)
  • No ionizer
  • CB certified / ozone-free (framed as a safety advantage)
  • Air quality sensor + air quality indicator
  • Auto mode
  • miHome smart app support, including:
    • Remote control
    • Scheduling/automation
    • Voice control (mentioned)

Key Differences (Main)

1) Room Coverage / CADR vs. Size

  • Xiaomi 4 Lite: supports rooms up to 330 sq ft
  • Xiaomi 4 Compact: supports rooms up to 206 sq ft
  • The 4 Lite is described as having higher CADR and stronger overall performance.

2) Sensor Types

  • 4 Lite: laser air quality sensor
  • 4 Compact: infrared sensor
  • Only 4 Lite adds:
    • Temperature and humidity sensors in the app
    • PM2.5 data display in the app

3) Filtration System “Same Tech, Different Capacity”

  • The filtration technology is described as broadly similar.
  • The main difference is filter size / carbon pellet weight, which favors the 4 Lite.

Performance Results Mentioned

Particle Removal Test (320 sq ft room, 60 minutes, max speed)

  • 4 Lite: 95% improvement
  • 4 Compact: 91% improvement
  • Video conclusion: 4 Lite outperformed the Compact.

Odor / Smoke Removal Comparison

  • 4 Lite showed significantly higher efficiency neutralizing band odors vs 4 Compact.
  • The video indicates it would show how quickly each model clears smoke from a glass box, with the overall implication that 4 Lite is faster.

Noise / User Experience (dBA)

The video emphasizes that 4 Lite is easier to live with due to its 15 fan speeds.

  • Lower speeds
    • 4 Lite: 40.1 dBA
    • 4 Compact: 41.3 dBA
  • Maximum speed
    • 4 Lite: 61.6 dBA
    • 4 Compact: 60.4 dBA
  • Overall takeaway: even though 4 Lite is slightly louder at max speed, its 15-speed granularity makes it better optimized for quieter day-to-day use.

Power Consumption / Running Costs

Motor Power

  • 4 Lite: 33 W
  • 4 Compact: 27 W

Claimed Electricity Cost (max speed, 24/7 for a month)

  • 4 Lite: about $3.25
  • 4 Compact: about $2.12

Replacement Filter Notes

  • The 4 Lite filters are said to last longer, lowering maintenance cost overall—despite higher power draw/CADR.

Pros

Xiaomi 4 Lite

  • Better particle removal (95% vs 91%)
  • Better odor/smoke clearing performance
  • Higher CADR / larger room coverage (330 sq ft)
  • Quieter overall usability due to 15 fan speeds
  • More smart/app features, including:
    • Temperature/humidity sensors
    • PM2.5 display
  • Better power-to-CADR ratio
  • Lower overall maintenance burden (longer-lasting filters)

Both Models

  • Strong filtration performance with 3-stage filtration
  • No ionizer and ozone-free positioning
  • miHome app automation and voice control support

Cons / Trade-offs Mentioned

Xiaomi 4 Compact

  • Lower measured performance (slower particle removal improvement and weaker odor neutralization)
  • Fewer advantages in the smart/sensor feature set

Xiaomi 4 Lite (Specific Trade-off)

  • Slightly louder at maximum speed
    • 61.6 dBA vs 60.4 dBA

Verdict / Recommendation (From the Video)

The video concludes that Xiaomi 4 Lite is the clear winner over Xiaomi 4 Compact, citing:

  • Better test performance
  • Stronger room coverage
  • Better power-to-CADR value
  • Quieter overall experience (via more fan speed levels)
  • Extra app/sensor features

Unique Points by Speaker

  • The subtitles don’t clearly identify multiple speakers; all points appear to be presented by a single narrator.

Original video