Philips Sonicare 3100 Series Electric Toothbrush, Sonic Toothbrush, Pressure Sensor and Timer, Black, HX3671/14

A really good sonic toothbrush at a very sensible price. Much better cleaning performance than the more expensive one that it replaced

Cleans teeth perfectly. The charge lasts a long time, about 10 uses. Be careful for those who are afraid to go to the dentist - the vibration during cleaning is similar to that when drilling a tooth. The disadvantages include an unclear indication when charging. I still do not understand whether the brush is fully charged or not. Also, original brushes from Philips are quite expensive, it is worth looking for an alternative. Otherwise, an excellent electric brush. I like it more in comparison with rotary ones from another well-known brand.

Excellent toothbrush for sale price. Would have given 5 stars but seems very noisy. Charge lasts for quite a while and light appears when it needs recharging again. Overall very pleased with how it works.

I have just replaced the same model after 3 years of continuous service. My dentist noticed the difference at the first appointment after changing from O-B to this, it is a much more thorough clean and my teeth are whiter for it. The toothbrush is easy to use with only on/off controls, and is substantial without being too large or small. The charge lasts a month with 2 cycles a day and it beeps every 30 seconds during the 2 minute cycle, turning off at the end. Towards the end of its life, the charge in the last brush still lasted over 2 weeks, with no loss of performance. I replaced it because the rubber on the on/off button wore through and it simply stopped working. I ordered that evening and the brush arrived the next day. The brush heads are quite expensive to replace with genuine heads, but after buying my first pack of 4 'compatible' heads, 2 failed to vibrate, none had the pressure sensor and the wear indicators didn't wear off at all! The brush head that comes with the unit is a bit too soft for my lking, but others may get on well with it. There is plenty of choice when t comes to replacements. Finally, the charging stand works by USB-A (big one) and I plug it into my laptop to charge. It beeps to tell you it is charging and there is a light indicator that tells you it is fully charged (around 24 hours from empty). All in, it is a powerful toothbrush that should last you for years and is recyclable at your local recycling centre.

Recommended by my dental therapist- this brush leaves my teeth feeling dentist clean every time. Battery lasts amazing & quick to charge. The sonic clean can take a little getting used unto to if you’ve never used it before as it’s really “tickley” but stick with it as this settles. A brilliant brush at an excellent price.

I purchased this toothbrush in January 2025 and it has already completely stopped working (December 2025). Warranty is useless as you get a choice to return the handle OR the charger, not both. I have zero idea whether it is a charger issue (charger does not have lights to indicate is it is working or not) or a defective handle; I just know that it does not work. I will no longer purchase Philips products after being a life long customer as I has the same issue with a pair of sonic toothbrushes purchased in 2024. Both stopped working a few days after the year's warranty ended. I thought it was just bad luck; now I know it wasn't.

Good toothbrush, my last one that was the same lasted 5 years., teeth feel very clean after. Can get replacement heads at a reasonable price.

This is the second purchase of this branded toothbrush in the last 2 years. My last one packed up and would not charge / no power. I do agree that the clean effectiveness seems excellent especially if you change you brush heads on a regular basis. I leave the toothbrush until the charge is very low before fully charging. I guess this is some 4-6 weeks between charges and it takes 8+ hours to recharge, this is more than acceptable for me. As mentioned the clean is thorough and I feel it does a great job especially around my gums which used to suffer. In terms of rating I am influenced by the thought that this will not last long again so based on my last experience I can only give it 3 stars. I would hope this lasts 3-4 years this time!

It is a good product

bien a l'usage , mais apres 14 mois , la gomme de protection bouton c'est percé et presse le bouton, resultat : la brosse se met en route toute seule la nuit et n'est plus etanche. J'ai du decouper le gomme pour la remplacer par une grosse gaine thermoretractable plus large , bidouille pour continuer la brosse qui n'a pas 2 ans ... donc decu par la qualité du produit ... mais apres 4j , ne fonctionne plus , ne charge plus , DEAD apres 14 mois d'usage !!!

Impeccable

Ok

Llevo usando esta marca y tipo de cepillo desde hace años, y para mí es uno de los mejores en cuanto a limpieza de dientes, suavidad y cuidado de encías, que es lo más me preocupa. En la caja de color negro junto con la imagen del producto, aparecen en la parte trasera de forma gráfica las principales características del cepillo, que son un sensor de presión para evitar hacerte daño en las encías, recordatorio luminoso y emisión de señal cuando hay que cambiar el cabezal por desgaste, temporizador de 2 minutos de uso, con 30 segundos para cada cuadrante, y la duración de la batería es de 14 días, con carga a través de USB. Al abrir la caja, descubres el cuerpo del cepillo que en este caso es de color negro, un cabezal con protector transparente, la base de carga con cable USB incorporado también en color negro, y las instrucciones en varios idiomas que incluyen el español, con un díptico gráfico de uso. Lo primero que hay que hacer es cargar la batería, una carga dura hasta dos semanas, solo hay que conectar la base a un adaptador de corriente con conexión USB, o a cualquier dispositivo que lo permita, cuando se está cargando se ilumina un LED intermitente en color verde en la parte inferior del cepillo, cuando la carga está completa el LED queda iluminado de forma permanente. Para comenzar a usarlo tienes que pulsar el botón de encendido, que también activa durante los primeros 14 usos un programa que te da la opción de aumentar de forma suave y gradual la potencia de cepillado durante esas primeras limpiezas de dientes con el cepillo. Cuenta con 31000 pulsaciones por minuto que generan burbujas que combaten la placa entre los dientes y a lo largo de la línea de las encías. Es importante coger el cepillo con suavidad y colocarlo en un ángulo de 45º con las encías, sin presionar en exceso aunque tienes un avisador que lo indica. Lo que no tiene son distintos modos o ajustes de intensidad excepto durante esos primeros 14 días de uso que lo hace de forma automática. Después de estar probándolo durante un mes, se nota y mucho una mejor limpieza de los dientes, con un tacto bastante más suave, y también mejora las manchas que puedes tener, aunque es posible que al principio te choque un poco el sonido y el tipo de cepillado. Me gustan los resultados y el cepillo está muy bien si te preocupan tus dientes y encías.