i was looking online reviews when i was looking for electric toothbrush, almost everyone that has smart-features including off brand tend to be defective, one way or another. its either the blue tooth, the sensor, it stops rotating, charging,,,etc. replacement heads are expensive if you are buying the OFFICIAL heads. i bought ones from ironically germany( alittle big for the american version of the actual toothbrush, it works and it last longer too as a replacement, apparently only the american ones get yellow and shorter before 3 months. while the ones from the official german versions dont. the americans have to be replaced every 3months.

the one i bought was the oralb1000 series, it was 39.99usd at the time(i noticed this color was noticbally cheaper both instore too, shouldve gotten another one jus tin case.) they sell the other colors which was more expensive and never on sale for some reason.