Bose QuietComfort Ultra Earbuds wins with Immersive Audio and wireless charging case per Bose specs while matching the Earbuds II on 6-hour battery, Bluetooth 5.3, IPX4, and CustomTune ANC. The Earbuds II trails due to discontinuation status and lack of wireless charging. Both share the same $299 MSRP but the Ultra provides measurable feature upgrades.