Sound quality: “Hearing aids are designed primarily to improve speech understanding, so there is more of an emphasis on high-frequency sound,” says Heather Andrews, a doctor of audiology and licensed audiologist with Zepp Clarity. “This can result in some users feeling music sounds less rich or natural compared to traditional headphones or speakers.” Look for a brand with a music program in its accompanying smartphone app that’s designed to improve the sound of the music when streaming. —Chris Morris