In terms of language and speaking functions, which are really the crux of smart speakers, there are smaller but notable differences. Just like the speakers’ technical aspects, Google Home’s voice data is projected through two microphones, while Amazon’s Echo has seven sound sensors, which are also able to filter out background noise.
The speech recognition aspect works somewhat better for the Echo; it is more reliable at distinguishing its owners’ voice over any background din. In a neutral situation, both devices are equally good for users, they both react promptly to queries at distances of up to 15 meters and respond to inquiries. Both devices are also always ready to be woken up and activated using their code word – “OK Google” or “Echo”.
There are also small differences to be noticed in the sound quality. If you want to play music directly with the devices rather than connecting to external speakers, Google Home offers a fuller, more rounded sound. However, Google’s AI voice sounds a bit more mechanical than the Echo’s AI voice, and Google Home’s volume capacity is a few decibels lower than Echo’s.
When it comes to language intelligibility, Google is winning the race: Although Home is still newer to the market, its voice AI has much better conversational capability because it remembers conversations and can keep up with follow-up questions. On the other hand, the Echo still has problems understanding simple questions. Additionally, the Echo is not always able to formulate answers that are grammatically correct. Google Home’s advantage over Amazon’s Echo is hardly surprising, considering that Google is deeply invested in spoken language comprehension research.
Nevertheless, language intelligibility varies depending on the subject area. While Google Home answers general knowledge questions and information reliably, the Echo deals better with questions about purchasing and products. Both devices revise and improve speech recognition on a regular basis. To summarize: The Echo has better hearing capabilities, and Home has better comprehension.