Probably has a usb port for charging, records your skin temperature, tells you if you have new zits, a vibrator option for you neck and syncs with your computer for your music selections. Heck, I dunno...
When I was looking for an electric tooth brush, there was only one model that did not use a Smartphone app. Most of them communicate via Bluetooth (there's a joke in there somewhere) and show you which mouth-quadrant you are in and tells you when it's time to move on to the next field of battle. I gotta laugh at it. I just looked on Amazon. They have an electric razor for $4,250.60 from a manufacturer that doesn't even come up on a web search (Lookxingxing.) Amazon has a whole bunch of razors that are north of $1,000 You don't see any with Customer Reviews (meaning no apparent sales) until you get to the $399 Braun, which has over 450 reviews. Then a whole bunch more with no reviews until the $327 Braun with over 2,300 reviews. The 1 Star reviews are from customers in Germany, Spain and the UK. I scrolled through 3 pages and did not find a single review from the states. I translated the first negative German review: "Device is already used! Case full of stains and shaving residues in the razor and the cleaning station." LOL. Sucka.
I believe that several of the really nutty prices that you see from third-party advertisers on Amazon are engaging in a form of money laundering, with Amazon getting a cut. I have seen books of no particular value with prices in the thousands, and other items offered for prices that are crazily high.
That never even occurred to me. I don't doubt that some of this is a front, but I would hope that Amazon is smart enough to not put its nearly $400 Billion business at risk for what would amount to peanuts. But who knows. Greed and discretion are often mutually exclusive.
I have my own rechargeable electric razor, and I have electric coded clippers, and so I cut my own hair and shave myself as always. Haven't been to a barber shop for 16 months. I also attend to my own bipap machine for sleeping, I have a MAD device for trips, and also keep my hearing aids in good shape with batteries, molds,etc. So far everything below my neck is in good shape, its just that as soon as they perfect head transplants, I think I will get one.