Philips HX3711/21 oral irrigator vs Philips HX3711/22 oral irrigator

Comparison of HX3711/21, HX3711/22

7 specifications	A Philips HX3711/21 oral irrigator Model HX3711/21 View product	B Philips HX3711/22 oral irrigator Model HX3711/22 View product
Featuresidentical
Water tank capacity	0.55 L	0.55 L
Product colour	White	White
Power1 differ
Power source	Battery	Battery
AC input voltageDiffers	多电压充电器	다중 전압 충전기
Operating time	1 min	1 min
AC input frequencyKnown for one	—Unknown — not stated by the source	다중 전압 충전기
Batteryidentical
Rechargeable batteryKnown for one	Yes	—Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.