We put the new Infinio Sphere Ultra from Phonak through both real-world use and objective lab testing to see how they stacks up. Are they better than the original Sphere and how do they compare to other prescription hearing aids? Watch to find out our thoughts and hear sound samples with your own ears! Full review here: https://www.hearingtracker.com/hearing-aids/phonak-audeo-infinio For my friends in the USA 🇺🇸...