Had some time yesterday to compare some buds that I bought over the last few weeks.
Most interesting one was the Tiandirenhe TD21 with its IEM style faceplate, removable cable and over the ear cable. With their design they sit very stable. Can recommend them for everyone who needs some buds for sports. They don’t disappear in your ear like the bells though.
https://a.aliexpress.com/_EvH4Vcf
Was afraid they will sound really crappy as I never heard any about them before. The sound is on the lighter side, not much warmth and mid forward with a little shout. Nothing EQ couldn’t fix. Soundstage is a tiny bit wider than on the Bells.
Fiio FF3S: they don’t have the magic bass the normal FF3 had and even though they are lighter (aluminum instead of steel) the fit for me is worse probably because of the bigger stem for the removable cable.
KS Temperament X6 and X3: the cheaper X6 has a fuller sound with more mid-bass. X3 is more on the neutral side. Didn’t find any obvious technical upgrades with the more expensive X3. It comes with a 4.4mm extra cable though. The part of the cable that can be changed is tad big and heavy for the light buds. Wish they would have the same cable below the Y split like for the Buds.