On the surface, these two earbuds share a solid connectivity baseline — both offer fast pairing, USB-C, LDAC, AAC, a 50 ms audio latency figure, and an identical 10 m maximum Bluetooth range. The Anker Soundcore R60i edges ahead with Bluetooth 6.1 versus the Air Pro 4 Plus's Bluetooth 6.0, which can mean marginally improved connection stability and efficiency in congested wireless environments — though real-world differences at this version gap are subtle.
Where the gap becomes substantial is in codec and protocol support. The EarFun Air Pro 4 Plus adds aptX Adaptive, aptX Lossless, and Bluetooth LE Audio — a trio the R60i entirely lacks. aptX Adaptive dynamically scales bitrate to balance quality and latency, aptX Lossless enables CD-quality transmission over Bluetooth where supported, and LE Audio is a next-generation standard offering improved efficiency and multi-stream capabilities. Together, these codecs give the Air Pro 4 Plus significantly more flexibility with compatible source devices.
The Air Pro 4 Plus also supports Auracast, a broadcast audio feature built on LE Audio that allows one device to stream to multiple listeners simultaneously — a forward-looking capability with growing real-world applications. The R60i offers none of these. Despite its fractionally newer Bluetooth version, the EarFun Air Pro 4 Plus holds a decisive connectivity advantage, particularly for users with high-resolution audio sources or an eye toward emerging Bluetooth standards.