Just a little something to think about:
Tisas/Girsan are made in Turkey and are forged frames and slides.
Rock Island and variants are cast and made in the Philippines.
The forged parts will hold tighter tolerances for a longer time.
I have been using the ISO Tunes Caliber BT buds for a year or so. I just ordered another set to use at work. 12-13 hours per charge. The case holds another two charges in its battery. They come with different size and material inserts. Same price range as the Axils.