TRUE COST

Oral-B iO 3 Review

£70 purchase price 4.2/5 value rating Based on 14 brushes

Lifetime cost

3 years of ownership

Handle £70

Brush heads £60

Electricity £3

Total (3 years) £133

Cost per brush £0.06

Compared with Manual Toothbrush

Manual Toothbrush £39

Save £0

Comparison

Metric	Philips Sonicare 6100	Oral-B iO 3	Manual Toothbrush
Purchase price	£89	£70	£3
Annual running cost	£19	£21	£12
Ownership cost	£146	£133	£39
Cost per use	£0.07	£0.06	£0.02
Value note	Good feature set, but branded heads are the main recurring cost.	Lower handle cost with similar ongoing head replacement pressure.	Very low cost, but replacement cadence still matters.