Sonic technology combined with our brush action gently removes plaque up to 3x better* than a manual toothbrush.
Sonic technology combined with our brush action gently removes plaque up to 3x better* than a manual toothbrush.
in 3 offers
The lowest price for Philips 3100 Series HX3671/23 Electric Toothbrush Adult Sonic Toothbrush White right now is $50.00 at BIG W, compared across 3 retailers.
The all-time low was $21.00 on 10 May 2026 — today's price is 138% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 15 June 2026.
Philips 3100 Series HX3671/23 Electric Toothbrush Adult Sonic Toothbrush White
Sonic technology combined with our brush action gently removes plaque up to 3x better* than a manual toothbrush.
Sonic technology combined with our brush action gently removes plaque up to 3x better* than a manual toothbrush.
Last updated at 15/06/2026 04:27:46
Philips Sonicare 3100 Electric Toothbrush (White)
Free delivery
Philips Sonicare 3100 Electric Toothbrush (white) Phi-hx3671-23
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Philips Sonicare 3100 Electric Toothbrush (White)
Delivery $12.99
originally posted on philips.co.uk
Compared to my manual brush I was sceptic about the results but after a week of using it my teeth feel cleaner, my gums are a lot more healthier. As a avid flosser I usually do this every other day but I’m now finding I don’t have to floss half as much and maybe once a week is all that’s needed. I was pleasantly surprised at how small the charging station was, this made it easier to travel with fitting in a small bag (for anyone who likes to have a toothbrush handy). Very easy to use with the guided 2 minutes went quicker than usual hardly any pressure needed and teeth feel cleaner than ever even the really tricky areas on the back teeth feel really clean *based on a manual brush*. The pressure sensor made me aware of how hard I was brushing, with the sensor making ... MoreCompared to my manual brush I was sceptic about the results but after a week of using it my teeth feel cleaner, my gums are a lot more healthier. As a avid flosser I usually do this every other day but I’m now finding I don’t have to floss half as much and maybe once a week is all that’s needed. I was pleasantly surprised at how small the charging station was, this made it easier to travel with fitting in a small bag (for anyone who likes to have a toothbrush handy). Very easy to use with the guided 2 minutes went quicker than usual hardly any pressure needed and teeth feel cleaner than ever even the really tricky areas on the back teeth feel really clean *based on a manual brush*. The pressure sensor made me aware of how hard I was brushing, with the sensor making you aware instantly by a clear buzzing I could correct this immediately therefore I find my gums are being cleaned better without damaging them, this I found very handy, the speed of the brush head ensured all areas were cleaned very quickly compared to a manual brush I always found I brushing for a lot longer was required to reach this level of cleanliness, I felt I was brushing better for the required amount of time rather than guessing and having to re do. Not only does this product live up to its description it looks very stylish, it’s slim design makes it easy to hold and better to reach those tricky areas. I have only fully charged the product once and it was still working to full capacity 7days later and only then indicating it needs to be charged although this has not changed it’s performance in any way! , many people have commented on how much whiter my teeth are even my dentist has recognised the healthier gums, I would highly recommend this product for cleaner and healthier teeth and gums
originally posted on philips.co.uk
So, my first forray into electric toothbrushes. I have stoically stuck to my guns and never purchased or used one in the past, so, this was quite an eye opening time for me.Firstly, yes. Good grief it's better than a normal toothbrush. It's actually a real shock, your teeth feel so much cleaner, your mouth does feel fresher and, there is a huge difference.This particular brush has a nifty little trick or two, it tells you via a vibration if you are using too much pressure, excellent idea for those of us with sensitive gums, also, a smart timer, giving you great control of your timings for how long you spend on each part of your mouth.I know, it's just a toothbrush, but, it's my first non manual one, and, because it's something I use every day, for me at least ... MoreSo, my first forray into electric toothbrushes. I have stoically stuck to my guns and never purchased or used one in the past, so, this was quite an eye opening time for me.Firstly, yes. Good grief it's better than a normal toothbrush. It's actually a real shock, your teeth feel so much cleaner, your mouth does feel fresher and, there is a huge difference.This particular brush has a nifty little trick or two, it tells you via a vibration if you are using too much pressure, excellent idea for those of us with sensitive gums, also, a smart timer, giving you great control of your timings for how long you spend on each part of your mouth.I know, it's just a toothbrush, but, it's my first non manual one, and, because it's something I use every day, for me at least it needs to be doing the job better than a manual, and it does it easily. I love the fact that it's reasonably lightweight, first thing in the morning you don't want to be wrestling with a heavy electric toothbrush, the battery life says 14 days, mine has been going a lot longer, and that's with daily use, twice a day based on 2 minutes per usage. So if you go away, and don't want to lug about a charger for it, you don't need to. Also, it comes with a very small charger, again, a boon for space saving in the bedroom or en suite charging.To sum up, I love it, my first electric toothbrush and I'm incredibly impressed. Small enough to pack when you go away, powerful enough to really clean your teeth and gums beautifully and, even looks smart. Love it
originally posted on philips.co.uk
I would highly recommend the Phillips sonic 3100 electric toothbrush, i think this product is perfect for any age of adult and also suitable for young adults. Ive found this toothbrush very easy to use and is surprisingly lightweight when compared to other electric brushes. During use it has a rather delicate but effective movement to its head which was a pleasant surprise compared to my old rather abrasive brush. I really like the overall design of this brush, its design is sleek and perfected and perfectly Balanced. It certainly looks and feels a top of the range product. One advantage to this toothbrush in comparison to others ive used is the sound. I have found this one is far quieter which i do like very much. The battery life on this model is absolutely ... MoreI would highly recommend the Phillips sonic 3100 electric toothbrush, i think this product is perfect for any age of adult and also suitable for young adults. Ive found this toothbrush very easy to use and is surprisingly lightweight when compared to other electric brushes. During use it has a rather delicate but effective movement to its head which was a pleasant surprise compared to my old rather abrasive brush. I really like the overall design of this brush, its design is sleek and perfected and perfectly Balanced. It certainly looks and feels a top of the range product. One advantage to this toothbrush in comparison to others ive used is the sound. I have found this one is far quieter which i do like very much. The battery life on this model is absolutely fantastic, you get far more use before it needs recharging. Which is fantastic if you forget your charger and are away from home. Since using this toothbrush ive seen and felt a huge difference in my teeth and gums, it provides a very thorough clean and leaves my mouth feeling clean, strong and healthy. I'm very happy with the improvements in my oral health since using this toothbrush and would highly recommend to others, i will be buying this for my hubby to upgrade his toothbrush.
Philips Sonicare 3100 Electric Toothbrush (White)
Free delivery
Philips Sonicare 3100 Electric Toothbrush (white) Phi-hx3671-23
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Philips Sonicare 3100 Electric Toothbrush (White)
Delivery $12.99
Compared to my manual brush I was sceptic about the results but after a week of using it my teeth feel cleaner, my gums are a lot more healthier. As a avid flosser I usually do this every other day but I’m now finding I don’t have to floss half as much and maybe once a week is all that’s needed. I was pleasantly surprised at how small the charging station was, this made it easier to travel with fitting in a small bag (for anyone who likes to have a toothbrush handy). Very easy to use with the guided 2 minutes went quicker than usual hardly any pressure needed and teeth feel cleaner than ever even the really tricky areas on the back teeth feel really clean *based on a manual brush*. The pressure sensor made me aware of how hard I was brushing, with the sensor making ... MoreCompared to my manual brush I was sceptic about the results but after a week of using it my teeth feel cleaner, my gums are a lot more healthier. As a avid flosser I usually do this every other day but I’m now finding I don’t have to floss half as much and maybe once a week is all that’s needed. I was pleasantly surprised at how small the charging station was, this made it easier to travel with fitting in a small bag (for anyone who likes to have a toothbrush handy). Very easy to use with the guided 2 minutes went quicker than usual hardly any pressure needed and teeth feel cleaner than ever even the really tricky areas on the back teeth feel really clean *based on a manual brush*. The pressure sensor made me aware of how hard I was brushing, with the sensor making you aware instantly by a clear buzzing I could correct this immediately therefore I find my gums are being cleaned better without damaging them, this I found very handy, the speed of the brush head ensured all areas were cleaned very quickly compared to a manual brush I always found I brushing for a lot longer was required to reach this level of cleanliness, I felt I was brushing better for the required amount of time rather than guessing and having to re do. Not only does this product live up to its description it looks very stylish, it’s slim design makes it easy to hold and better to reach those tricky areas. I have only fully charged the product once and it was still working to full capacity 7days later and only then indicating it needs to be charged although this has not changed it’s performance in any way! , many people have commented on how much whiter my teeth are even my dentist has recognised the healthier gums, I would highly recommend this product for cleaner and healthier teeth and gums
So, my first forray into electric toothbrushes. I have stoically stuck to my guns and never purchased or used one in the past, so, this was quite an eye opening time for me.Firstly, yes. Good grief it's better than a normal toothbrush. It's actually a real shock, your teeth feel so much cleaner, your mouth does feel fresher and, there is a huge difference.This particular brush has a nifty little trick or two, it tells you via a vibration if you are using too much pressure, excellent idea for those of us with sensitive gums, also, a smart timer, giving you great control of your timings for how long you spend on each part of your mouth.I know, it's just a toothbrush, but, it's my first non manual one, and, because it's something I use every day, for me at least ... MoreSo, my first forray into electric toothbrushes. I have stoically stuck to my guns and never purchased or used one in the past, so, this was quite an eye opening time for me.Firstly, yes. Good grief it's better than a normal toothbrush. It's actually a real shock, your teeth feel so much cleaner, your mouth does feel fresher and, there is a huge difference.This particular brush has a nifty little trick or two, it tells you via a vibration if you are using too much pressure, excellent idea for those of us with sensitive gums, also, a smart timer, giving you great control of your timings for how long you spend on each part of your mouth.I know, it's just a toothbrush, but, it's my first non manual one, and, because it's something I use every day, for me at least it needs to be doing the job better than a manual, and it does it easily. I love the fact that it's reasonably lightweight, first thing in the morning you don't want to be wrestling with a heavy electric toothbrush, the battery life says 14 days, mine has been going a lot longer, and that's with daily use, twice a day based on 2 minutes per usage. So if you go away, and don't want to lug about a charger for it, you don't need to. Also, it comes with a very small charger, again, a boon for space saving in the bedroom or en suite charging.To sum up, I love it, my first electric toothbrush and I'm incredibly impressed. Small enough to pack when you go away, powerful enough to really clean your teeth and gums beautifully and, even looks smart. Love it
I would highly recommend the Phillips sonic 3100 electric toothbrush, i think this product is perfect for any age of adult and also suitable for young adults. Ive found this toothbrush very easy to use and is surprisingly lightweight when compared to other electric brushes. During use it has a rather delicate but effective movement to its head which was a pleasant surprise compared to my old rather abrasive brush. I really like the overall design of this brush, its design is sleek and perfected and perfectly Balanced. It certainly looks and feels a top of the range product. One advantage to this toothbrush in comparison to others ive used is the sound. I have found this one is far quieter which i do like very much. The battery life on this model is absolutely ... MoreI would highly recommend the Phillips sonic 3100 electric toothbrush, i think this product is perfect for any age of adult and also suitable for young adults. Ive found this toothbrush very easy to use and is surprisingly lightweight when compared to other electric brushes. During use it has a rather delicate but effective movement to its head which was a pleasant surprise compared to my old rather abrasive brush. I really like the overall design of this brush, its design is sleek and perfected and perfectly Balanced. It certainly looks and feels a top of the range product. One advantage to this toothbrush in comparison to others ive used is the sound. I have found this one is far quieter which i do like very much. The battery life on this model is absolutely fantastic, you get far more use before it needs recharging. Which is fantastic if you forget your charger and are away from home. Since using this toothbrush ive seen and felt a huge difference in my teeth and gums, it provides a very thorough clean and leaves my mouth feeling clean, strong and healthy. I'm very happy with the improvements in my oral health since using this toothbrush and would highly recommend to others, i will be buying this for my hubby to upgrade his toothbrush.
Philips do not provide a 2 pin plug or adaptor for a bathroom shaver point for this product for reasons they say are environmental - so as to save the equivalent of 19 million plastic bottles.Philips do however put a USB plug on the product.USB or Universal Serial Bus is an industry standard plug for connecting computer peripherals and devices. Useful if you take your computer into the bathroom I suppose but otherwise a waste of resources to put one type of plug on a product rather than another type of plug designed to be used in bathrooms.The consumer must purchase an additional adapter (great for the environment - not) in order to use the product.To add to Philips's environmental credentials they also supply a 97 page safety leaflet in 30 languages and a ... MorePhilips do not provide a 2 pin plug or adaptor for a bathroom shaver point for this product for reasons they say are environmental - so as to save the equivalent of 19 million plastic bottles.Philips do however put a USB plug on the product.USB or Universal Serial Bus is an industry standard plug for connecting computer peripherals and devices. Useful if you take your computer into the bathroom I suppose but otherwise a waste of resources to put one type of plug on a product rather than another type of plug designed to be used in bathrooms.The consumer must purchase an additional adapter (great for the environment - not) in order to use the product.To add to Philips's environmental credentials they also supply a 97 page safety leaflet in 30 languages and a warranty leaflet (also in 30 languages) together with 3 other leaflets.
I worked in dentistry for 46 years and have been a sonicare user since they were first launched. I was privileged to have purchased high end sonicare brushes that were outstanding. Far better than rival electric brushes. I retried 8 years ago and had recommended and sold many of the higher priced brushes. All patients without exception were very pleased. Buying this brush for me was a mistake. I fell into the mindset of thinking it was too self indulgent now to spend over £100. False economy. I fI rarely had hard deposits on my teeth other than between my lower central anteriors. This brush does not remove even soft plaque. O the plus side it is light and easy to use. Ideal for taking away with you rather than the larger models. It does clean to a degree and ... MoreI worked in dentistry for 46 years and have been a sonicare user since they were first launched. I was privileged to have purchased high end sonicare brushes that were outstanding. Far better than rival electric brushes. I retried 8 years ago and had recommended and sold many of the higher priced brushes. All patients without exception were very pleased. Buying this brush for me was a mistake. I fell into the mindset of thinking it was too self indulgent now to spend over £100. False economy. I fI rarely had hard deposits on my teeth other than between my lower central anteriors. This brush does not remove even soft plaque. O the plus side it is light and easy to use. Ideal for taking away with you rather than the larger models. It does clean to a degree and leaves your mouth feeling fresher. The charging is easy yet takes a long time. Would be ideal for use in frail,elderly generations.
Having had multiple electric toothbrushes over the years of both the popular brands this is I think the worst.-The body is a bit too thin and slippery to grip well particularly when the inevitable toothpaste and saliva gets on to it.-The on/off button is too subtle to feel to easily maintain orientation of the brush in your mouth.-The pressure sensor is IMO far to high if you pressed anywhere that hard the brush heads would last about a week.-Turning off the easy start/brush replacement is at best confusing.-Although I have to assume that it vibrates at the quoted frequency the brush doesn't feel like it has as much power or torque as my old one and so doesn't feel like it is doing such a good job.On the positive side it does still seem to have about a 2 ... MoreHaving had multiple electric toothbrushes over the years of both the popular brands this is I think the worst.-The body is a bit too thin and slippery to grip well particularly when the inevitable toothpaste and saliva gets on to it.-The on/off button is too subtle to feel to easily maintain orientation of the brush in your mouth.-The pressure sensor is IMO far to high if you pressed anywhere that hard the brush heads would last about a week.-Turning off the easy start/brush replacement is at best confusing.-Although I have to assume that it vibrates at the quoted frequency the brush doesn't feel like it has as much power or torque as my old one and so doesn't feel like it is doing such a good job.On the positive side it does still seem to have about a 2 week battery life which means I generally won't have to take the charger on holiday but the USB one is less bulky if I do and my old 2 pin one still works with this new brush.
I bought this to replace a Sonicare HX5350/02 which I had had since November 2011 because the switch became faulty. Initially, I was disappointed with the HX3671/14 because the instructions were almost meaningless and after charging instinctively and using for the first time the performance seemed weak. However, after using it for several weeks, I have become used to it and it DOES clean my teeth. It feels like the pressure has increased. I normally clean my teeth for just over one minute (judging by the SmarTimer) and the battery lasted for 39 days with two brushings per day. It is a pity that I had to 'Unlock one extra year of warranty' on line (presumably that means three years total?) before I became aware of the full operating instructions.
This is the first time I have tried a Philips electric toothbrush as I have always had other brands. I’ve had it a few weeks and can already say I prefer this toothbrush. Here are a few reasons why I like this device:Sensitivity - It feels really sensitive on my teeth and gums but at the same time feels powerful and I know I’m getting a good clean. The vibration action is feels soft over my teeth but also powerful in a weird way. A negative would be when you want to concentrate on a specific area, you feel you can’t push down hard as the brush is so sensitive, and buzzes if you push down hard.Battery life - By far the best toothbrush for battery life. It lasts about 3 weeks with no charge. Also I love the fact that when its out of battery it goes from 100% power ... MoreThis is the first time I have tried a Philips electric toothbrush as I have always had other brands. I’ve had it a few weeks and can already say I prefer this toothbrush. Here are a few reasons why I like this device:Sensitivity - It feels really sensitive on my teeth and gums but at the same time feels powerful and I know I’m getting a good clean. The vibration action is feels soft over my teeth but also powerful in a weird way. A negative would be when you want to concentrate on a specific area, you feel you can’t push down hard as the brush is so sensitive, and buzzes if you push down hard.Battery life - By far the best toothbrush for battery life. It lasts about 3 weeks with no charge. Also I love the fact that when its out of battery it goes from 100% power to 0%. A lot of other tooth brushes start to power down after a few uses and you feel you have to charge it up to get full capacity. This toothbrush stays at 100% and won’t compensate for anything less. This is my favourite feature.Design - I love the black style, just wish they did black brush heads!Charger - Really love the fact its USB charger. I always get caught short with charger adapters so having a USB really helps, I plug it into my phone charger and even my PC/laptop.Brush head - Feels a bit flimsy when you brush too hard - feels like it bends, but I know its part of the design for notifying you when brushing too hard.Summary: Feels like a fine-tuned action, so really good for sensitive teeth/gums but doesn’t compromise on cleaning power. Other toothbrushes feel like they clean with brut force, which would damage gums in the long run. I can see this tooth brush being really beneficial for gums in the long term. The battery life is amazing and don’t worry about it ‘fading’ power like other brands.His and Hers - Although I like the fact this comes in a pack of 2, they don’t do two more neutral colours like black and white.
I have recently bought myself and my wife new philips sonicare brushes to replace the ones we had been using for many years. They are quite simply the best electric brushes on the market. Each bristle vibrates, with individual bristle getting into all the nooks and crannies and between every tooth. Compared to circular brushes which scrub the surface without touching the cavities between teeth, the philips toothbrushes are far better. More effective at cleaning and removing both food waste and plaque. Excellent product. So good, that after using them for many years, have just bought the same product again. I couldn't better it.
