custom Bluetooth profile and DSPS

hi，dialog

What is the difference between using the sample128 to develop the DA14580 Bluetooth profile and using the serial port?

Using sample128 to develop DA14580 Bluetooth profile and use serial port which is more low power consumption?

Is it Dialog DSPS to use the serial port?

Can you send the answer to my question to my email address?
My email address isqianyintao@mysentech.com

thanks
good luck

Qyt