Customer Ratings & Reviews

Excellent shaver. Easy to handle and clean love the travel kit

Another norelco top notch product. I buy one of these things every 5-7 years and they always operate well with no problems. This has to be my third one in the last 20 years.

This was a replacement for an older Phillips shaver. It is a high quality product and works as advertised.

I have never found an electric razor that has worked for me, until now. It is so nice to be able to do a quick shave when I don't feel like using a blade.

I’ve had Norelco electric razors since I’ve been 16 years old. I’m in my late 50s the best razor I’ve ever had handstand.

Better than what I read Love the service and your caring attitude

've been using the old model of Philips 9000 series shaver since 2019, and I recently upgraded to the i9000 Prestige for a more precise and advanced shaving experience. Compared to my old model, this shaver is a big step up in many ways. The i9000 Prestige delivers an ultra-close shave, cutting hair at skin level without irritation or nicks. Its triple-action lift & cut system raises hairs from the root, giving me a smooth shave that lasts all day. I especially appreciate its precision in tricky areas like the neck and under the nose—places I’ve always struggled with. I shave every 1-3 days, and whether it’s a short stubble or a week-long beard, the i9000 handles it effortlessly with fewer strokes needed. One of the standout features is its AI-powered pressure sensor. It detects how much pressure I'm applying and provides real-time feedback with light indicators, helping me maintain the perfect pressure for a comfortable shave. It also adapts to my beard’s density, automatically adjusting for the most efficient shave. The GroomTribe app’s real-time efficiency tracking is a nice bonus. Battery life is impressive (compared to my older model), with a full charge in just one hour and a quick 5-minute charge for a single shave when I’m in a rush. The battery lasts up to 60 minutes, more than enough for multiple shaves. The charging stand is handy, keeping the shaver organized and ready to use. Cleaning is super easy with the one-touch open feature—I just flip open the head and rinse it under water. This is a big improvement over my old 9000 series. The build quality is solid, and the shaver should last up to two years before needing replacement parts. Plus, the travel pouch is a great addition for on-the-go use. I wish it had USB-C charging instead of a proprietary cable with USB-A, making it more convenient for travel with fewer cables to carry. The Philips i9000 Prestige has exceeded my expectations in every way. It’s precise, comfortable, and packed with smart features that make shaving effortless. Whether you’re upgrading or trying Philips for the first time, I highly recommend this shaver for its performance, durability, and skin-friendly design. A truly worthwhile investment.

great shave very comfortable shave; Norelco users will love it

I’ve been using this Philips Norelco i9000 prestige daily for about a week and it’s a great upgrade over my 10 yr old model. The rotary head design helps to provide an even shave that consistently close to the skin, even in hard to reach areas under the neck and nose. I love the light sensor that changes color based on the pressure you put on the razor, guiding you to getting the best possible shave. Blue=too light, Green=just right Yellow/Orange=too much pressure. After using daily for a week or so, I’ve found that applying the right pressure is critical. Pressing too hard can lead to skin irritation (which happened to me initially). For the best possible shave, use a circular motion while moving the razor across your face. The Norelco i9000 Precision is easy to clean, and comes with a little brush to help with cleaning. It also comes with a carrying case and a charger and cord. Initial charge took about an hour, and I’ve been able to use the razor for a full week and it still is at 85%. One thing I don’t like is that the unit does not come with a wall plug. It comes with a USB A cable, but you need to supply a charging plug. This seems like a cost cutting move that is just inconvenient on what I consider to be a relatively premium razor. The unit itself seems well built too, and the travel case is of a good quality. I’m looking forward to making this my regular shaver.

This is an excellent shaver...... hopefully it will last a long time. Thank you.

I am writing this review for the Philips Norelco i9000 Prestige Electric Shaver. The i9000 Prestige shaver is one of the latest additions to the Philips Norelco line of personal grooming products. Over the past 30+ years, I have been a rather devout consumer of Philips Norelco products due to their marked superiority in true quality. I say true quality because nowadays it seems that quality is measured by gimmickry rather than by durability and usefulness. This is important when one is choosing personal care products such as electric shavers. To prove my point, I bought a Norelco Spectra 8825XL electric razor sometime around the year 2000. I not only still have that razor, but it still works just as well as it did the day I bought it. Even though I have two other Philips Norelco shavers, I just can’t bring myself to part with the Spectra. It still works just like it did when it was brand new! When I first used the i9000, I was quite pleased with the way it feels in my hand. It isn’t bulky or cumbersome, but rather sleek, comfortable and easy to hold. The body’s material allows for a great grip without having to hold on tightly. In fact, there are “ridges” on the side that make using it in the shower easy, with no slipping out of the hand. It’s super easy to see that Philips Norelco took a lot of effort with designing the razor, and considered just how user-friendly to make it. One of the points that really caught my eye was the claim that it can shave up to a closeness of 0.00mm. That’s close! It also boasts of a “Hydro SkinGlide Coating” that provides 50% smoother gliding to reduce friction. To top it all off, the i9000 boasts of 72 self-sharpening blades providing up to 150,000 cutting actions per minute. That’s a lot of boasting. The question then is, “Does it live up to its hype?” The first thing I did was to fully charge the razor as it came roughly 20% charged out of the box. I was surprised to see that it took less than one hour to fully charge the battery. The second thing I did was to actually use it to see just how true their boasting is. The i9000 is very quiet. It’s so quiet I almost wondered if it was actually fully charged. As I began to shave with it, however, and noticed how well it was cutting, I knew it was fully charged. The shave was effortless. The razor seemed to glide over the surface of my skin, almost as if there were no blades at all in the razor. But the closeness was crazy! Now, I had a two-days growth of beard, so I went into this a bit skeptical. My skepticism was short-lived. The i9000 cut as close as any razor blade I have ever used. If there was anything at all to take notice of, it would lie in just how easily the razor cuts the hair. There is no pulling whatsoever. I mean none. When you watch an advertisement for a traditional multi-bladed razor, one of the selling points is that the blades each work to help pull up the hair so that the blade following can not only cut even closer, but continue to pull the hair up until the last blade has pulled and cut until the hair actually goes beneath the surface of the skin. However, the blades of the i9000 are so unbelievably sharp that there is no pulling, and the cut is right down to the surface of the skin. For me, this is one of the greatest aspects of the i9000. Anyone who has ever suffered from hair bumps knows exactly what I mean. There is no pulling the hair up until it falls beneath the skin and causes irritation as it grows back! After shaving, I used the trimmer to see just how evenly it would cut my sideburns. Almost perfectly. I like the way you can trim around your ears as well if you have shorter hair like I do. Although the Philips Norelco i9000 is a “smart” razor, I have to admit that for me, that is not one of its strong selling points. Sure, you can track how you use the razor, and get real time information about the shaving experience, and at first that is pretty interesting. But I typically shave before work or when I’m getting ready to go out, so I don’t have a lot of time to make use of all smart features. Don’t get me wrong, there are a lot of people who do like to use the smart features, and this is the perfect razor for that. At the end of the day, the real question is does the i9000 live up to all its hypes and promises. The short answer is absolutely yes. The i9000 is yet one more milestone in the Philips Norelco line of exceptional products. Its shaves super SUPER close without irritation. Charge time is fast. The razor itself is exceptionally well made of high-quality materials. This is one more Philips Norelco product I will be strongly recommending to my friends and family!

PERSPECTIVE: I’ve been a lifelong Norelco (North American [Philips] Electrical Co.) shaving customer as was my father, whose 1st Norelco was a 2-headed shaver before he moved up to Norelco’s 1st 3-headed shaver. Over the years, I’ve purchased multiple Norelco triple-head shavers, even though I’ve often sat on the sidelines during Philips’ periods of proliferating model releases, which have often included only minor iterative changes. But whenever Norelco has released a major upgrade or a bundle of small but notable improvements in a single new model, I’ve always bitten. Enter the new i9000 Prestige Ultra shaver which includes multiple enhancements/accessories that showcase/highlight some of the more recent developments from Philips’ Personal Health division. My review, however, is of the NON-Ultra Prestige shaver, which is the base model in the current i9000 line although, given the price pt. of this non-Ultra model, I’m frankly surprised that it doesn’t include the extra features/accessories included w/the Ultra model. Nevertheless, the core features of this more limited non-Ultra shaver are worth examining. 1ST IMPRESSION/OPENING THE BOX: I’ve become accustomed to the sleek, understated, close-fitting, matte black aesthetic of the custom boxes/packaging in which many of today’s smart devices arrive. But the packaging for this shaver was unimpressive & even dated. Inside this ‘90s-style box was a flimsy black cardboard divider w/a form cutout for the thin canvas travel case. What happened to Norelco’s classy, padded leather/leatherette travel cases? And the tiny user guide offers only marginally helpful images as a substitute for a multi-language detailed printed instructions pamphlet. This wouldn’t be a bad idea IF the graphics were better illustrated & easier to follow. CHARGING: At the 1st charging, I was disappointed to discover that Philips doesn’t include a simple wall outlet power adapter. Instead, this ‘Prestige’ shaver comes w/a plastic charging stand w/a USB-A charging cable. Upon placing the narrow/pointy end of the shaver into the well of the charging base, it doesn’t seat w/a confirming click-in for stability. Standing the shaver on end makes it top-heavy & a bit wobbly in the well. I’m also disappointed that I can’t plug in a power cord from the wall to the razor to grab a quick shave when the lithium-ion battery is depleted & I’m in a hurry. Add to that, there’s no option for wireless charging & the corded charging time-to-runtime ratio is slow & inefficient. It takes a full hr. of charging to get 1 hr. of runtime for just 20 3-min. shaves. Philips must remember their target market here. While those of us who gravitate towards higher-end electric shavers want quality shaves, we also seek convenience & time savings, hoping to ‘shave off’ a min. or 2 from our daily routines where possible. With a limited 1:1 battery charging/runtime ratio, I’m not sure the juice is worth the squeeze. PHONE APP: After downloading the Philips ‘GroomTribe’ app, I had difficulty achieving a successful initial BT pairing between my Samsung Galaxy Ultra smartphone & the shaver. Then, I discovered that turning the shaver “on” does NOT mean just pressing the unit’s navigation button on the face of the shaver which illuminates a small LED display screen allowing the user to scroll thru its 4 menu options: 1. Battery: remaining charge %; 2. Travel Lock/Unlock; 3. Light Ring On/Off; 4. Shaver Paired/Unpair. Instead, the shaver must be RUNNING, i.e., BLADES TURNING, to achieve the initial pairing. This is thankfully unnecessary when simply ‘reconnecting’ the shaver to your smartphone via BT after the shaver has been paired initially. The App’s Device Health screen displays helpful stats about the shaver, incl.: 1. Battery status; 2. Shaving Heads status w/a blade wear indicator based on your cumulative usage (Philips recommends replacing the SH91 shaving heads after 24 mos. although your mileage may vary based on how often you shave, the duration of your shaving sessions, & how thick/coarse your beard is); 3. Daily Usage stats for the week, incl.: Pressure, Motion, & Duration data. USAGE: DRY/WET SHAVER: Although I tried this cordless shaver in the shower & had satisfactory results, my personal preference w/this razor is dry shaving in front of a well-lit mirror. This method consistently affords me better visibility & a closer shave w/o the hassles of trying to maneuver a wet shaver in the shower while continually squinting into a fogging mirror w/o my Rx glasses. But if you’re a wet shaver guy, 1 nice feature of this cordless razor is that it includes an ergonomic grip w/raised rubberized traction ridges on the upper sides of the handle to prevent the razor from slipping through wet hands in the shower. TRIPLE-HEAD SHAVING SYSTEM: At certain angles, the curved yet angular triple-action rotary shaving heads almost look like a section of a small spherical geodesic dome w/its pentagonal polyhedron design. ‘Skin IQ’ technology: the 3 compact, 360º rotating Flex heads include what Philips calls ‘skin stretching patterns’ that dynamically adapt to facial curves. The apertures atop the 3 heads allow the 72 self-sharpening nanotech DualSteel precision blades (24 blades/head), which are spinning underneath at approx. 2,100 RPM, to perform 150k cutting actions/motions/min. These blades lift-&-cut tiny facial & neck hairs, in any direction & so closely that the shaver can achieve a flush, 0.0 mm ‘skin-level close’ shave of your face/neck w/o nicking/irritating your skin, all while catching & cutting more hairs/stroke. This AI-powered shaver adapts to the user for a personalized/custom shave. It’s been dermatologically tested & described as ‘ultra-gentle.’ LIGHT RING: The Light Ring is the ‘sizzle’ in the steak & the biggest draw for purchasing the i9000 Prestige. Behind it are advanced sensors that activate the Light Ring & a BT-connected app which captures detailed data on every shaving session, providing relevant tips on how to improve your next shaving session. The Light Ring is part of the ‘Active Pressure & Motion Guidance System’ which provides real-time feedback to help you apply: 1. the optimal PRESSURE to your face/neck; 2. the optimal circular MOTION technique; 3. the optimal DURATION for each shaving session. This smart shaver helps you to better manage/control these 3 critical inputs to maximize the razor’s capabilities for the optimal shave. To unpack this, the Pressure Guard reads the amt. of pressure you’re applying against your skin via the shaving heads & provides real-time feedback through the Light Ring & the app’s data capture, allowing the user to adjust. In effect, this system integrates your human inputs w/the smart shaver’s design engineering to produce a cleaner, closer shave. Too little pressure = a blue light ring; just the right pressure = a green light ring; too much pressure = an orange warning light ring. Your goal, of course, is to keep the Light Ring in the green zone to achieve the ideal shave. Frankly, I was surprised by the shaver’s post-shave analysis of my 1st 3-min. shave when it revealed that I’d spent only 32% of my shaving session in the green zone. To my dismay, I spent 38% of my shave in the orange zone, pressing too hard as I was trying to get my shave in quickly while thinking about a pending work deadline that morning. With my excess force, I was not only shaving inefficiently; I was dulling my new shaver’s blades & irritating my skin. The other surprise was that I spent 30% of my shave in the blue zone. I think this was because I was a little hesitant at 1st to apply more pressure around my sensitive ‘gotcha’ zones between my upper lip & nose & around the neck below/behind my earlobes. In other words, I was every inconsistent! So, it was both disappointing & eye opening to discover that I was spending fully 2/3 of my shave applying anything but optimal pressure to my beard. Even the best, highest-tech, most expensive shaver can’t provide a close shave if the user is unknowingly & alternately applying too little or too much pressure. Sporadic inputs produce sporadic outputs, making the shaver much less effective, which in turn leads to excessive passes over the same areas of skin to cut missed whiskers, which ultimately leads to irritated skin that makes us look less than our best. So, if at 1st glance, you think the Light Ring appears a bit gimmicky, as I 1st did, you may want to reconsider. After I looked at the color graphics, raw numbers, & %’s in my App’s data log, following my 1st shave, I began to watch the Light Ring very closely in the mirror each time I shaved over the next few mornings. I started to leverage the Light Ring as a tool to help me spend more time in the optimal green zone, which resulted in a closer shave w/less skin irritation. In fact, the App’s 1st feedback msg. back to me openly encouraged me to strive for getting my green zone time above 60%. The good news is that, as I increased my time spent in the green zone, the duration of my individual shaving sessions began to drop from too much ‘overtime,’ as the app refers to it, to a place where I began to clock shaves right around the recommended 3-min. shave time. Happily, I was already scoring high on my circular Motion, the technique that Philips says catches & cuts the maximum # of whiskers & creates the least irritation. In summary, the i9000 Prestige has clearly helped me to improve & refine my shaving mechanics which has increased the overall effectiveness/value of the shaver for me. And this conclusion is supported by my improving metrics as measured by the shaver’s advanced sensors & recorded in the app data over the last 5 shaving days. Funny how that works: use your tools as they were designed to be used & you’ll get better results. And all this time I thought I was shaving correctly. Who knew?

I had a Norelco some 25 years ago. At the time, I had a position where I needed to appear clean shaven every single day, or at least close to. The Norelco was the better option to razors as I was traveling a lot. And though I can get a very close shave with a good razor, doing so more than twice a week makes me get a lot of in-grown hairs on my face and neck. So with 25 years of improvement, I was hoping this Norelco would be a significant improvement over my old one. However, best I can tell, this new i9000 does about the same as my old one. On my face and around my mouth, it shaves pretty well. It leaves very short stubble, about like it'd feel 8-12 hours after shaving with a good razor. Also like the older ones I've used, this shaver works best on short stubble from a few days' growth. Longer growth doesn't easily find its way past the shave head grills. If you only shave once a week, you'll either need to take a lot of passes with the i9000 or use the flip-out trimmer first. On my neck and underside of my jaw/chin, the i9000 doesn't do as well. On this softer skin, the articulating shave heads don't seem to do as good a job in keeping the heads in contact with the skin. I have to make lots of passes to make sure it gets everything, and even then it leaves a few small patches where the hair didn't get trimmed short enough and a few individual hairs completely untouched. As said above, this is about the same as I've had from other electric shavers for a long time. While this may be par for the course, it's disappointing that things haven't improved in over two decades. The battery on this new unit does last longer than previous models I've had, so that's an improvement. I can get about 10 shaves before needing to recharge. The included carry case is also nice. However this shaver is also significantly larger than older models as well. Part of that extra size comes from much larger bezels around the shave heads. This makes it harder to gauge the trim line, like when you're shaving below your sideburns or around a goatee. Finally, I'm not sure why Philips Norelco thinks a shaver needs Bluetooth and other connected features. I really don't need to see metrics on my shaving history. It's just one more thing to unnecessarily fixate on with limited actual use or value. To their credit, you don't need to create an account to use the mobile application; you can use it as a guest. But how much lower would the cost of the shaver be if I didn't have to pay for a Bluetooth radio and mobile app development. In all, this is a good electric shaver, but it's not dramatically better than the older Norelcos. It won't revolutionize your shaving regimen.

Overall I really like this shaver and the shave it provides. First it comes with a nice hard case, so if you travel you can protect it and not worry about the heads popping open and spilling hair in your bag. That alone is worth it to me. It does have an a Phone Application like everything else that you can connect it to for basic information but I feel I don't need to connect everything to a phone app to use, and luckily you can use it without a phone app, but it is there if you want it, which I'm sure some people find handy, like reminders to charge/clean the phone, I just don't need anything else on my phone so I skipped it. The one feature I really like, not for me, but having nuero-diverse children who need to shave is the light on the shaver, showing when you applying the correct pressure, for them that really seems to help them get it right with the visual clues and makes my life easier in trying to explain to them how to shave, so the hard case and that have made this a winning shaver and the shave is close, I can get very smooth skin thanks to Phillps, so I, my kids and wife highly recommend for when you need to have a baby skin smooth shave.

I have used electric razors in the past, but nothing as high end and luxurious as this one. I am bald, lucky me, and have been shaving my head with a manual razor for years. It was messy, irritated my skin and expensive because I used pricey cartridges. To avoid this, I often found myself letting my hair grow longer than I'd like. I wanted a new way, a better way, and I found it. I will say that I keep my face with some short stubble so this review is only based on shaving my head. As soon as I unpacked it, I noticed how sturdy and well built it is. It comes with a weighty stand for charging, a power cable and a nice travel pouch. I charged it and easily set it up on the app, though I don't think I will ever need this, seems a bit unnecessary to me. I washed it, then went to work. I could not believe how close it got, leaving my head perfectly smooth, with no irritation. It might even do a better job than a regular razor. The side trimmer is good to get closer around my ears and sideburns. It holds a really good charge and they made it super easy to open up for cleaning. I have now shaved my head 3 times with this and I could not be happier with the performance.

I owned a previous version prior to this. This new one does not have the wireless charging base but plugs into a cradle and sits upright. I actually prefer it. Charging is fast. Normally I would not complain about a charging block but it's 2025 and most everything uses usb type C. I had to buy an adapter because the cable is usb type A and I couldn't charge it because there is no charging block. Even my laptop is usb C so be aware of that prior so you can confirm you have something that can charge it. Shaving in general seems to be much quicker and easier with this new version and the pressure light is excellent and helpful. As far as the actual shave it is still the best in its class. These razors are expensive but well worth it. I prefer to keep it simple but there is an app you can download. I do miss having the cleaning tray but I will purchase one that fits as its much easier and sanitary to clean this way. When you buy a razor of this quality you know what you are getting. There really is no additional maintenance necessary assuming you clean it properly after use. It's as good as it always has been.

This electric Razor is 100% one of the best electric shavers I have ever used, resulting in a clean, smooth shave that even my wife, who can spot a stray hair at 50 paces, was surprised to learn came not from a razor blade, but from an electric shaver! I have owned multiple Philips Norelco series trimmers and this one in particular does not fail to live up to the quality and ease of use I have expected. On top of all of this, this is my first ever SMART shaver. I never quite imagined I would have a little barber basically built into an electric razor and app combo guiding my shave, but here it is! It is worth noting that this smooth shave is a SMOOTH shave. Meaning that if you are prone to razor bumps like I am, you may want to consider playing around with the sensitivity and pressure settings and recommendations to mind a shave that looks aesthetically pleasing but meets your skin sensitivity needs to prevent razor bumps. Altogether, I am extremely pleased to have this shaver in my personal hygiene rotation and I am happily going to recommend this to my friends and loved ones!

The Philips Norelco I9000 Prestige packed with tech. Great for people that want to micromanage their shave and tweak their style. The app work well and pairs to the shaver quickly and efficiently. So why the 4 stars and not 5? Shaving closeness. No, an electric will never be as close as a blade despite any marketing hype. I've used electric razors for over 25 years and have tried all kinds. This one isn't the closest I've used, and I expected more than it gave. It does excel at removing 3 day stubble without any issue or hair pulling. The colored light ring lets you know when you're using too much or to little pressure/movement. It's also adjustable in the app. This is helpful for getting the closest shave this can manage. The 3 head design makes it tougher to get a finely trimmed edge around beards, goatees and mustaches. It takes work to get the lines right and sharp. Those who shave their full face wont have an issue. It holds a good charge, and lasts. I was able to get over a weeks worth of shaves out of it before charging it back up when it reached 14%. Great for not worrying about recharging on a vacation. Comes with a good protective case for travel and storage. Easy to clean and care for. Wet or dry shave. Overall a little expensive, but a decent electric razor. One side note, and I did not review this shaver based on this, but it's not the best shaver by a long shot for shaving your head. Bald guys used to a close cue-ball smoothness will be disappointed. I'd still recommend it for those looking for a quality electric shaver.

I have traditionally been using classic triple-blade razors and while on travel rechargeable electric shavers of varying quality but nothing like this Philips Norelco i9000 Prestige model. I had no idea what I was missing! A year ago or so I got the Philips Norelco Multigroom 9000 as the ultimate hair trimming/grooming toolkit that I use to trim my goatee and mustache and shave my head with. Now I got an opportunity to try an equally impressive shaving machine, coincidentally with a similar model number and it’s quickly becoming my favorite. The build quality is superb, feels very solid but not too heavy in hand. The triple swiveling, pivoting heads adapt to the shape of your face and the advanced dual-steel precision blades cut hair at skin level, literally 0.0mm, surprisingly with no skin irritation. I would know because I have very sensitive skin. I prefer a wet shave, but with the HydroSkin Glide Coating, this i9000 Prestige model you don’t have to worry about any noticeable friction. Another great feature that I’m very accustomed to from my electric toothbrushes is the SenseIQ pressure guided sensor with the light ring that gives you a visual indicator if you push too hard against your skin, or too little, which wouldn’t necessarily give you the cleanest shave. There is also a smartphone App called GroomTribe Styling and Shaving that will give you more information about your shaving patterns and make recommendations while you’re shaving or afterwards. I love my smartphone and take advantage of useful apps all the time, but just like with my bluetooth connected electric toothbrush, once you use it a few times and tweak the settings to your liking, it is a bit overkill to watch your phone screen while you’re brushing or shaving. A few other notable features - it is very quiet, noise and vibration are minimal. The rechargeable lithium battery life is great, comes with an USB-A charging cable so it can be charged with your typical phone charger, car USB ports, computers, etc. It is also travel friendly and comes with a travel case. Other than that, it is a bit pricey but well worth it and highly recommended.

The Phillips Norelco I9000 Prestige is by far the best rechargeable electric shaver that I have owned, and that is speaking from my experience of owning several before I received this one! At first glance, it has a sleek, attractive design that is pleasing to the eye. It is comfortable to hold in your had. Out of the box, it comes with a charging dock/cable. This allows the shaver to sit upright on the charger while it is docked. It also comes with a nice zip up carrying case. I like the style and quality of the case. This makes traveling with the shaver even easier because I am not worried about it being turned on while in my luggage. The shaver has three shave heads that articulate in different ways based on the contour of your face/neck areas. Below the shaver heads is a light ring that offers you feedback on your shaving. If you push too hard, it turns orange/red. If you are not pushing at all, the light is blue. If you are right on the sweet spot of the proper applied pressure, the light turns green. The shaver also has bluetooth which allows it to connect to your phone. If you download the app associated with it, it will give you more detailed feedback on how well you shaved. This includes applying the proper pressure as well as the appropriate circular motion during your shave. This convenient and easy to use shaver is by far my favorite I have owned!