Yes, the new OneBlade 360 blades are compatible with the classic Philips OneBlade handpieces. According to the manufacturer, they fit all OneBlade handpieces as well as the OneBlade Pro models; only individual special models such as OneBlade Intimate are excluded.
So, you can generally use them for your Philips OneBlade shaver, provided it is not such a special model.
The blade of the Philips OneBlade 360 (QP420/50) should be replaced approximately every 4 months to maintain optimum performance and a fresh feel. A replacement indicator in the form of an eject symbol on the blade indicates when the performance of the blade is no longer optimal and a replacement is required.
We work with daily prices, which can be influenced by various factors such as purchasing conditions, stock levels and supply and demand. Price differences may therefore occur, as in this case.