Coway
Coway Airmega 150
₹15,998
Xiaomi
Mi Air Purifier 4 Compact
₹9,999
An in-depth comparison to help you choose the right air purifier for your needs.
Price gap
₹5,999
Score gap
1 pts
Rating gap
0.0
Prices accurate as of 31/03/2026. Prices and availability on Amazon.in may change.
Editor's analysis
A hand-written take on how these two compare in the real world.
Korean filtration vs Chinese smart tech in adjacent price bands: Coway Airmega 150 at Rs 15,998 vs Mi Air Purifier 4 Compact at Rs 9,999. The Coway offers 4-stage filtration, washable pre-filter, and quieter 22 dB operation. The Mi Compact counters with app control, voice assistant support, OLED display, and Rs 5,999 savings. The fundamental choice: advanced filtration without smart features or smart features with standard filtration.
Round by round
How each product stacks up across the key dimensions.
Product A
Coway Airmega 150
2
wins
Product B
Mi Air Purifier 4 Compact
3
wins
₹15,998
₹9,999
4.4 / 5
4.4 / 5
87/100
86/100
Popular
Bestseller
250 m³/hr
260 m³/hr
38 sq m
32 sq m
Quick summary
Korean filtration vs Chinese smart tech in adjacent price bands: Coway Airmega 150 at Rs 15,998 vs Mi Air Purifier 4 Compact at Rs 9,999.
The Mi Air Purifier 4 Compact wins on value - Rs 4,000 less with H13 HEPA and full smart home integration. The Coway wins on quieter operation and more thorough 4-stage filtration. For tech-savvy buyers, the Mi is the better deal. For bedroom-focused quiet purification, the Coway justifies its premium.
Side by side
Each pick at a glance, what they include and what they cost.
Coway
CADR (Clean Air Delivery Rate)
250 m³/hr
Coverage Area
38 sq m
Filter Type
Pre-filter + Green True HEPA + Activated Carbon
Noise Level
22-53 dB
Xiaomi
CADR (Clean Air Delivery Rate)
260 m³/hr
Coverage Area
32 sq m
Filter Type
True HEPA H13
Noise Level
33-62 dB
Prices accurate as of 31/03/2026. Prices and availability on Amazon.in may change.
What sets them apart
The decisions you are actually making when you pick one over the other.
The Mi Air Purifier 4 Compact is 37% more affordable, saving you ₹5,999. This is a significant price gap that could be a deciding factor.
The Mi Air Purifier 4 Compact leads in cadr (clean air delivery rate) with 260 m³/hr compared to 250 m³/hr.
The Coway Airmega 150 leads in coverage area with 38 sq m compared to 32 sq m.
The Coway Airmega 150 is more efficient in noise level with 22-53 dB compared to 33-62 dB.
The Mi Air Purifier 4 Compact is more efficient in power consumption with 38W compared to 43W.
Spec sheet
Side-by-side numbers with subtle highlighting on the stronger value.
| Specification | Coway Airmega 150 | Mi Air Purifier 4 Compact |
|---|---|---|
| Price | ₹15,998 | ₹9,999 |
| Rating | 4.4 / 5(1,678) | 4.4 / 5(1,876) |
| CADR (Clean Air Delivery Rate) | 250 m³/hr | 260 m³/hr |
| Coverage Area | 38 sq m | 32 sq m |
| Filter Type | Pre-filter + Green True HEPA + Activated Carbon | True HEPA H13 |
| Noise Level | 22-53 dB | 33-62 dB |
| Power Consumption | 43W | 38W |
| Warranty | 1 year | 1 year |
| Dimensions | 340 x 219 x 469 mm | 250 x 250 x 450 mm |
| Weight | 5.7 kg | 4.2 kg |
Highlighted cells indicate the stronger value in that row.
Strengths and tradeoffs
Where each pick shines, and where you'll have to compromise.
Decision guide
Pick the one that matches your priorities, not the spec sheet.
Choose
Coway Airmega 150
If you want
Choose
Mi Air Purifier 4 Compact
If you want
Buying tip
The Mi Compact's app tells you exactly when to replace filters based on actual usage and air quality data - not just a timer. This data-driven approach can extend filter life beyond the Coway's simple timer-based indicator, potentially saving Rs 500-1,000 per year in filter costs despite similar filter prices.
Ready to decide?
Quick answers
Only if quiet bedroom operation is essential - the Coway's 22 dB vs Mi's 33 dB is a noticeable difference for light sleepers. The Mi Compact offers H13 HEPA (higher grade than standard), app control, voice assistant, and OLED display. For most buyers, the Mi Compact's smart features at Rs 4,000 less are the better deal.
The Mi Compact wins decisively. Its particulate sensor feeds data to the Mi Home app showing real-time PM2.5 readings, air quality history, and filter life. The Coway has only a basic LED color indicator (green/yellow/red) with no numerical data or history tracking.
The Mi Compact uses H13 True HEPA which captures finer particles than the Coway's Green True HEPA. However, the Coway's 4-stage system includes dedicated activated carbon and deodorization layers for odors and VOCs. For particles, the Mi is technically better. For odors, the Coway is more thorough.