TRUE COST Lifetime cost ComparisonManual Toothbrush Review
3 years of ownership
Manual Toothbrush True Cost Compared
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.
Brush
£3
Replacements
£36
Total (3 years)
£39
Cost per brush
£0.02