Oral-B iO Series 5

It ranks #3 of 20 on our electric toothbrushes tier list, in A tier. That placement draws on 12 cited sources across 10 outlets.

None of the 7 sources with a clear view is critical of it. Value gap over the iO Series 3 is thin. iO consumable costs remain high.

On our electric toothbrushes board, Oral-B iO Series 5 ranks #3 (A tier) ahead of Oral-B iO Series 2 at #7 (B tier). Oral-B iO Series 2: ElectricTeeth and Health.com mention that it is a very early iO model that lacks the pressure sensor and smart display of later iO brushes, so it is outclassed by the Series 3 and 5.

On our electric toothbrushes board, Oral-B iO Series 5 ranks #3 (A tier) ahead of Oral-B iO Series 7 at #14 (D tier). Oral-B iO Series 7: ElectricTeeth and Health.com note it as the next-step iO model with a larger battery and more modes than the Series 5.

The Oral-B iO Series 5 is for people who want Oral-B's refined iO magnetic motor with a visible pressure sensor, and none of the flagship bloat. It is in A tier, ranked third on our electric toothbrushes board. It avoids the display and charging case of the Oral-B iO Series 9, so there are fewer electronics to fail over a five-year life. If you mainly want the lowest cost of ownership, the Oral-B Pro 1000 is the S tier pick and its heads are far cheaper.

The research says the value gap is thin. Both use the same iO motor and the same expensive iO heads. The Oral-B iO Series 5 adds the visible pressure sensor and sits in A tier, while the Oral-B iO Series 3 is in B tier as the cheapest sane way into the iO motor. If the visible pressure feedback matters to you, buy the Oral-B iO Series 5. If not, the Oral-B iO Series 3 saves money for the same cleaning.

It should last well. The research notes that fewer electronics than the flagship means fewer failure points over a five-year life. The iO platform is younger than the Pro line, so there is less long-term data, but the Oral-B iO Series 5 is the version of iO most likely to go the distance.

Press the power button once. The brush runs a two-minute cycle with pauses every 30 seconds to tell you to move to the next quarter of your mouth, and it stops on its own when the cycle ends. A press of the power button at any point turns it off early. The smaller button below switches modes, not power.

Only iO heads fit the Oral-B iO Series 5. Classic round Oral-B heads do not attach to the magnetic iO drive. The research flags that iO consumable costs stay high, so budget for that over the years. Replace the head about every three months.