TRUE COST

Manual Toothbrush Review

£3 purchase price 3.5/5 value rating Based on 14 brushes

Lifetime cost

3 years of ownership

Brush £3

Replacements £36

Total (3 years) £39

Cost per brush £0.02

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.