Updated Nov 2026 · Scored by the Let’s Compare Data Engine · How we score
For most buyers the EarFun Air Pro 4 is the better pick — it scores 81/100 to the Bose QuietComfort Ultra Earbuds (2nd Gen)'s 73, leading on Battery and Connectivity. Choose the Bose QuietComfort Ultra Earbuds (2nd Gen) instead if audio and calls matter most to you, where it comes out ahead.
Our overall take, at a glance
AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Nov 2026.
The EarFun Air Pro 4 are feature-rich true wireless earbuds equipped with Bluetooth 5.4 and 10-millimeter dynamic drivers. Designed for budget-conscious consumers seeking high-end connectivity features, they support an extensive selection of codecs including aptX Lossless and LDAC.
The Bose QuietComfort Ultra Earbuds (2nd Gen) are premium wireless in-ear headphones designed for everyday commuting, travel, and personal audio listening. They incorporate spatial audio with dynamic head tracking and support Bluetooth 5.3 alongside the aptX Adaptive codec and multipoint pairing. The earbuds provide 6 hours of continuous battery life per charge, with an additional 18 hours supplied by the included wireless charging case.
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