Bluetooth FM Transmitters: Our Testing Process
The best Bluetooth FM transmitters in this article went through two rounds of reviews. We started by searching Amazon for top products, looking at factors like Prime shipping eligibility, customer ratings, Amazon superlatives, and prices.
Our testing team ordered the five Bluetooth FM transmitters that best met these standards. A team member tested each product on a car, taking note of how easily the transmitters were installed in our testing vehicle, how well they streamed music and handled phone calls, and how versatile their features were. Each product was given a rating out of 5 stars based on this criteria.
We used a 2014 Honda Civic SE to test our Bluetooth FM transmitters. Each one was paired with an iPhone 12 Pro. At least two songs were streamed using Spotify® to test clarity. A phone call was made to another product testing team member to test the hands-free calling features as well as the clarity of each call.
Installation: This criterion measured how easily the Bluetooth FM transmitter was installed into our vehicle’s auxiliary port, also known as a cigarette lighter adapter. Once installed, we linked each transmitter to our phone. Transmitters that were installed with little hassle and connected quickly without difficulty scored highest in this category.
Streaming and Calls: This category measured the clarity of music streaming and phone calls. We factored in how easy it was to stream music from a phone, the reliability of taking calls, and how consistent the connection was during the duration of our testing process. Transmitters that worked reliably without interruption scored highest in this category.
Versatility: This category measured the additional functions of each transmitter. This included the number of ports, extra features, and design. Transmitters with more features and an intuitive design for a more user-friendly experience scored highest in this category.
Why You Can Trust Us
Each year, we test over 250 auto products on vehicles and in our testing lab. Our team of product testers thoroughly researches top products, unboxes and puts our hands on each component, and tests the items on real vehicles before making recommendations to readers.
We publish hundreds of product and service reviews to bring car enthusiasts detailed guides on automotive tools, detailing kits, car seats, pet products, and much more. For more information on our testing methodology and how we evaluate every product, check out our methodology page here.