Oral-B iO Series 9 Rechargeable Electric Toothbrush - Black Onyx vs Pairs of 4 count Oral-B Io Series Gentle Care Toothbrush Replacement Heads
Looking for an honest Oral-B iO Series 9 Rechargeable Electric Toothbrush - Black Onyx vs Pairs of 4 count Oral-B Io Series Gentle Care Toothbrush Replacement Heads comparison in 2026? We scored both electric toothbrushes on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. In our overall scoring the Oral-B iO Series 9 Rechargeable Electric Toothbrush - Black Onyx comes out ahead 68/100 to 53/100 — a 15-point gap. The widest gap is in design and build, where the Oral-B iO Series 9 Rechargeable Electric Toothbrush - Black Onyx pulls noticeably ahead. On price the Pairs of 4 count Oral-B Io Series Gentle Care Toothbrush Replacement Heads undercuts the Oral-B iO Series 9 Rechargeable Electric Toothbrush - Black Onyx by 242% ($59.9 vs $205), which materially changes the value calculus for budget-conscious buyers.
WINNER
Oral-B
iO Series 9 Rechargeable Electric Toothbrush - Black Onyx
68
68/100$205
Pairs
of 4 count Oral-B Io Series Gentle Care Toothbrush Replacement Heads
53
53/100$60