Hey Zum.P,
The Philips SpeedPro FC6726/01 has a replaceable battery and has a mini turbo brush.
Suitable for use in the car or for pet hair. The battery life is 10min longer so 40min and the battery has a voltage of 21.6V so 3.6V more than the FC6722/01SpeedPro. The Philips SpeedPro FC6726/01 is 30 grams heavier. That's actually all the difference!
I hope I could help you!
Greetings Acroe