The differences lie in the weight, the suction power, the filter, the running time and the accessories.

BSS825ALL:
- 4.4 kg
- Maximum suction power of 2500 Pa
- ultra-allergy filter
- running time of up to 60 minutes
- in addition to the standard nozzle, also includes a power nozzle, upholstery nozzle, crevice nozzle and flexible hose

BCS8224W:
- 3.4 kg
- maximum suction power of 2200 Pa
- normal washable filter
- running time of up to 40 minutes
- Supplied with one combination nozzle only



Overall, the BSS825ALL is more powerful and versatile than the BCS8224W.