# uHoo Smart Air Monitor vs Aranet4 Home: specs and price compared

A sourced, side-by-side comparison of the uHoo Smart Air Monitor (uHoo) and Aranet4 Home (Aranet) among air quality monitors. Aranet4 Home is the cheaper of the two at $189.

## Side by side

| Spec | uHoo Smart Air Monitor | Aranet4 Home |
| --- | --- | --- |
| US price | $299 | $189 |
| Brand | uHoo | Aranet |
| Released | 2017 | 2019 |
| Pm25 sensor | Yes | No |
| CO₂ sensor | Yes | Yes |
| Voc sensor | Yes | No |
| Radon sensor | No | No |
| Display screen | No screen - single RGB LED indicator | E-ink display (numeric CO2 ppm readout) |
| App connectivity | Yes | Yes |
| Power | 5 V/2 A USB plug-in (Micro-USB) | 2 AA batteries (up to 4-7 yr depending on battery type) |

## Key differences

- Pm25 sensor: uHoo Smart Air Monitor Yes vs Aranet4 Home No
- Voc sensor: uHoo Smart Air Monitor Yes vs Aranet4 Home No
- Display screen: uHoo Smart Air Monitor No screen - single RGB LED indicator vs Aranet4 Home E-ink display (numeric CO2 ppm readout)
- Power: uHoo Smart Air Monitor 5 V/2 A USB plug-in (Micro-USB) vs Aranet4 Home 2 AA batteries (up to 4-7 yr depending on battery type)

## What reviewers say

**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.)

**Aranet4 Home** — Only one whitelisted tester covers the Aranet4: NYT Wirecutter, which reports hands-on use over years and praises its accuracy and reliability, but flags that it only tracks CO2. In its October 2025 update Wirecutter places the Aranet4 in the 'competition' section rather than as a pick, favoring the multi-pollutant AirGradient One (which uses the same NDIR CO2 sensor plus more). No lab-measured Aranet4 figures were published; the surviving quotes come from Wirecutter's competition write-up. (1 sourced review.)

## Sources

- uHoo Smart Air Monitor: https://getuhoo.com/home/smart-air-monitor/ (getuhoo.com, verified 2026-06-20)
- Aranet4 Home: https://aranet.com/en/home/products/aranet4-home (aranet.com, verified 2026-06-20)

Canonical: https://frontdeskreview.com/gear/air-quality-monitors/uhoo-smart-air-monitor-vs-aranet4-home/
Cite: Per The Front Desk Review, uHoo Smart Air Monitor ($299) vs Aranet4 Home ($189) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/air-quality-monitors/uhoo-smart-air-monitor-vs-aranet4-home/
License: CC BY 4.0.