Bluetooth Transfer Speed. 5 gigabits per second gbps usb 31. The transmission speed of bluetooth.
Bluetooth 10a and 10b featured peak data transfer speeds of around 7322 kbs with a connection range of 10m or 33ft. The bluetooth standards maximum data rate is at best 3 mbps or about 21 after protocol overheads take their cut. Its just as slow on both ubuntu linux and windows so i know its not any codecs or os details.
According to a citation on wikipedia cant open the citation now due to a server error on wayback machine some products may claim compliance to bluetooth v20 without supporting the higher data rate.
There are five main speeds. There is no way you have to wait 20 minutes to transfer 20 pics in 2021 with the top tech of the market. The first is 1mbs like bluetooth v404142. Still it is commonly used in computer other peripheral devices.