The Philips Sonicare Series 2100 HX3651 electric toothbrush is currently available for 24.99 € at Darty.com, which is about 27% less than its usual price. This discount is calculated by comparing today’s lowest price with the average of the lowest prices offered by other retailers for the same product last month. Special rules are applied to ensure that prices from stores with unclear VAT policies are excluded from the calculation. The Series 2100 is considered a good starting point for those new to sonic technology toothbrushes. It features an attractive design, a comfortable handle, and a soft, pleasant brushing experience. However, it only includes one brushing mode, comes with a single brush head, and does not include a charging base. Over a 10-day testing period, with two brushings per day, users found the toothbrush very comfortable to use and noted a strong sense of cleanliness after each session. While it offers a solid introduction to electric toothbrushing, its limited features may not satisfy those looking for more advanced options. Another model from Philips, the Sonicare DailyClean 3100, is among the most affordable electric toothbrushes from the brand. This model is very basic, offering only one brushing mode, but it includes some useful features to help users get used to electric brushing. It is ideal for those who want to try electric toothbrushing without investing in more complex models. Both the Series 2100 and the DailyClean 3100 are part of Philips’ range of Sonicare toothbrushes, which use high-frequency vibrations to clean teeth more effectively than traditional manual brushes. While the Series 2100 offers a more refined experience, the DailyClean 3100 provides a simpler, budget-friendly alternative.