Amazon
Amazon Smart Air Quality Monitor
$69.99Cheaper
Released 2021
Best Air Quality Monitors · head-to-head
Amazon Smart Air Quality Monitor vs uHoo Smart Air Monitor
A sourced, side-by-side comparison. Amazon Smart Air Quality Monitor is cheaper at $69.99. Every spec and price links to its source.
uHoo
uHoo Smart Air Monitor
$299
Released 2017
Which is better: the Amazon Smart Air Quality Monitor or uHoo Smart Air Monitor?
On the specs we track, they're closely matched. The Amazon Smart Air Quality Monitor is the cheaper at $69.99.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Amazon Smart Air Quality Monitor | uHoo Smart Air Monitor |
|---|---|---|
| US price | $69.99 | $299 |
| Brand | Amazon | uHoo |
| Released | 2021 | 2017 |
| Pm25 sensor | Yes | Yes |
| CO₂ sensor | No | Yes |
| Voc sensor | Yes | Yes |
| Radon sensor | No | No |
| Display screen | No screen - LED color indicator only | No screen - single RGB LED indicator |
| App connectivity | Yes | Yes |
| Power | Micro USB plug-in (5 W) | 5 V/2 A USB plug-in (Micro-USB) |
| Release year | 2021 | 2017 |
Sources — Amazon Smart Air Quality Monitor: amazon.com (verified 2026-06-20). uHoo Smart Air Monitor: getuhoo.com (verified 2026-06-20).
What's the difference between the Amazon Smart Air Quality Monitor and uHoo Smart Air Monitor?
Where the two actually differ on the specs we track (3 of 7). Matching specs are omitted.
- CO₂ sensor: Amazon Smart Air Quality Monitor false vs uHoo Smart Air Monitor true
- Display screen: Amazon Smart Air Quality Monitor No screen - LED color indicator only vs uHoo Smart Air Monitor No screen - single RGB LED indicator
- Power: Amazon Smart Air Quality Monitor Micro USB plug-in (5 W) vs uHoo Smart Air Monitor 5 V/2 A USB plug-in (Micro-USB)
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Amazon Smart Air Quality Monitor
Three whitelisted hands-on testers—Tom's Guide, Reviewed, and TechHive—agree Amazon's ~$70 monitor is an inexpensive, easy-to-set-up tracker with no screen that lives entirely inside the cluttered Alexa app. None ran reference-grade accuracy benchmarks; all judgments are observational. TechHive panned its unfinished software in 2022; Reviewed and Tom's Guide warmed up once Alexa Routines matured. (3 sourced reviews.)
Praised: Quick, painless setup and fast (~7 min) calibration; Responsive and seemingly accurate at detecting pollutants (cooking, painting, chemicals, cologne triggered alerts); Inexpensive at roughly $70.
Flagged: No onboard display; data is buried in the cluttered Alexa app; Must stay plugged in via micro-USB — no battery or wireless option; Software felt rushed/unfinished, with limited Alexa answers and no Routines at launch.
uHoo Smart Air Monitor
Only one whitelisted tester, TechHive, published a hands-on uHoo Smart Air Monitor review; no PCMag, Tom's Guide, or Wirecutter coverage exists, and non-whitelist sources (Consumer Reports, Modern Castle, Gearbrain) were excluded. TechHive rates the nine-pollutant sensor among the best it has tested but faults a dated app, broken smart-home support, and a $399 price it calls overpriced. (1 sourced review, 1 lab-tested.)
Praised: Accurate, sensitive sensor suite that adds ozone and NO2, rare among rivals; Temperature and humidity readings matched the tester's reference weather sensors; Actionable, plain-English notifications on how to improve air quality.
Flagged: Dated, uninspired, not-user-friendly app; Broken smart-home support (advertised Alexa skill missing); Overpriced at $399.