Airthings Wave Plus vs Amazon Smart Air Quality Monitor: which should you buy?

Display

Neither product is really a display-first device in the way a dedicated screen-based monitor would be. The Airthings Wave Plus uses a minimalist LED-style status approach and app-based readings, which keeps the unit discreet but means you’ll rely on your phone for detail. The Amazon Smart Air Quality Monitor is also app-led and designed to feed data into Alexa, so it is similarly light on on-device feedback. Winner: tie. If you want instant at-a-glance numbers on the unit itself, neither is ideal.

Performance

This is where the Airthings Wave Plus pulls ahead. It measures radon, CO2, VOCs, air pressure, humidity, and temperature, giving you a broader picture of indoor air quality and the factors that drive damp, stale air, and mould risk in UK homes. Radon is especially important if you live in a higher-risk area or have a basement, ground-floor room, or older property. The Amazon monitor is good for general awareness, but it is aimed more at everyday smart-home air tracking than deeper environmental diagnosis. Winner: Airthings Wave Plus. Its extra sensors make it far more useful for health-conscious users who want to understand what is actually happening in the home.

Build quality and design

The Airthings Wave Plus has a more premium, purpose-built feel. It is designed as a long-term environmental monitor rather than a budget accessory, and its sensor set reflects that. Amazon’s unit is simpler and more utilitarian, which is fine for a small plug-in monitor but less impressive as a standalone product. In practical terms, both are compact and home-friendly, but the Airthings looks and feels like the more serious instrument. Winner: Airthings Wave Plus. It is the more polished and specialised device.

Battery life

The Airthings Wave Plus is the clear winner here because it is designed for flexible placement and long-term monitoring without being tied to a mains socket in the same way many smart monitors are. That makes it easier to place in the room where you actually need data, such as a bedroom, spare room, or a damp corner where mould is a concern. The Amazon monitor is more dependent on its smart-home setup and is less compelling if you want a truly portable, set-and-forget sensor. Winner: Airthings Wave Plus. Better placement flexibility usually means better real-world monitoring.

Price and value for money

Amazon wins decisively on price. At £69.99, it is £110.01 cheaper than the Airthings Wave Plus at £180.00, which is a huge gap for a home air monitor. If your goal is simply to get a basic read on indoor air quality and you already use Alexa, the Amazon monitor offers strong value. However, value is not just about the sticker price: the Airthings justifies its cost with radon measurement and a more comprehensive sensor package. Winner: Amazon Smart Air Quality Monitor. It is the better buy for budget-conscious shoppers.

Game library/features

Neither product has a game library, so the meaningful comparison here is feature set and ecosystem. Airthings wins on features because it includes radon, CO2, VOC, humidity, temperature, and air pressure, which is a genuinely useful combination for UK homes dealing with winter condensation, poor ventilation, and seasonal allergens. The Amazon monitor’s big advantage is Alexa integration and straightforward smart-home visibility, which is convenient but narrower in scope. Winner: Airthings Wave Plus. It offers the richer and more actionable feature set.

Overall user experience

The Amazon Smart Air Quality Monitor is the easier, cheaper, more mainstream option. It suits users who want a simple smart-home device, especially if Alexa is already central to the home. But the Airthings Wave Plus delivers a more complete and more health-focused experience, especially for people worried about radon exposure, persistent damp, or understanding why a bedroom feels stuffy overnight. In the UK, where older housing stock, sealed winter homes, and mould issues are common, that extra insight can be genuinely valuable. Winner: Airthings Wave Plus. It is the more capable monitor and the better long-term choice for most health-conscious buyers.

Overall summary: If you want the cheapest decent air quality monitor and you live in Alexa, choose Amazon. If you want the better monitor for real indoor air insight, especially for UK homes and health concerns, choose Airthings. The Airthings Wave Plus is the definitive winner for depth, usefulness, and peace of mind, while Amazon wins on price.