The Galaxy Buds 2 Pro uses Samsung's Seamless Codec, which supports up to 24-bit HiFi audio with a maximum bitrate of 512Kbps4. For non-Samsung devices, AAC or SBC codecs can be used. The earbuds also have 360 Audio capabilities and support for 24-bit audio, though the latter feature is exclusive to select Samsung phones.
The Galaxy Buds 3 Pro might use an upgraded version of Samsung's SSC Hi-Fi audio codec, offering 24-bit 96KHz audio transmission. This would be an improvement over the Galaxy Buds 2 Pro's 24-bit 48KHz audio transmission, allowing for near-lossless audio transmission to the Galaxy Buds 3 Pro4. However, this codec is likely to be limited to Galaxy phones and tablets.
The Galaxy Buds 3 Pro is expected to offer 24-bit 96KHz audio transmission, an upgrade from the Galaxy Buds 2 Pro's 24-bit 48KHz transmission2. This should allow Samsung phones to transmit near-lossless audio to the Buds 3 Pro, likely appealing to audiophiles. However, this improved codec might be limited to Galaxy phones and tablets.