I've purchased & returned several (Sony WF‑1000X, Jabra Elite Sport, Bragi The Headphone, Rowkin Bit Charge, some random Chinese brands off Amazon), but ended up going with the Bose SoundSport Free. Since I don't care about isolation, the open design is not an issue for me, but if isolation is what you're looking for, these are not it. I personally prefer semi-open IEMs for their long-term comfort vs. those you jam in your ear and rely on a consistent seal (pressure, suction, etc.).
For Bluetooth truly wireless, these sound amazing. I find myself grabbing these over my wired 1More Triple Driver/Quad DAC LG G6. They are comfortable for extended wear and the charging case is top-notch. I'm usually a bit low on Bose, but they did a great job with these.
PROS
- Excellent sound for the form factor, which I even prefer over my wired IEMs. They measure surprisingly well
https://www.rtings.com/headphones/reviews/bose/soundsport-free.
- Sounds better than the Bose SoundSport Wireless (I still own) and Bose QuietControl 30 (returned). When comparing the measurements, to me, they illustrate the real-world differences quite accurately.
- I have no issues with signal. I can manually disrupt the signal if I cover the right earbud with my hand, but other than that, I don't experience drop outs (using the most recent firmware update).
- Semi-open design. This is a PRO if you like to have some level of awareness, which I also feel adds a bit to the soundstage.
- Full user control on the right earbud.
CONS
- Video delay with YouTube. However, I do not have any appreciable delay with Amazon Video or Netflix. Videos I shoot myself on my Apple iPhone 7 Plus also do not have any appreciable delay.
- Buttons are a bit firm and hard to press. They seem to work out a bit over time, but it's still on the firm side. You do, however, push down vs. inward, which does not hurt your ear canal when changing volume or tracks.