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Transparent technology is the best technology and thanks to Laifen for sponsoring this vibrator history video.

Which phone do you think has the best vibration haptics?

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Tech
Transcript
00:00I promised during my iPhone Air teardown that I would make a full vibrator review video,
00:05going through the history of vibrations from the Nokia 3110 to the original iPhone all the
00:11way up to the iPhone Air. I also have a vibrator that we can see in motion with the new LIFEN P3 Pro.
00:17Fun fact, LIFEN asked if they could sponsor a video about their new shaver, and I said only
00:22if you make it transparent, and they actually did. It's got the world's first dual drive linear
00:28motors inside, a single piece CNC milled frame, free shipping, and a solid two year warranty.
00:35But we'll talk more about that later. Of course we'll finish up with a review of the largest vibrator
00:40I could find, a jackhammer. I'm sure there are a few other sizes of vibrators out there,
00:45but these will be our main focus for today. Let's start with the Nokia, the world's most
00:50indestructible phone. This guy was released in 1997 and had a vibrating motor inside that could
00:56break your leg. There are videos on YouTube of people setting this phone up right and having
01:00it dance itself off of tables. That's how strong it was. All thanks of course to the first mainstream
01:07vibrator design, called the eccentric rotating mass vibrator. You can see that it looks like any
01:12standard electric motor, except for along one side of the output shaft it has a large metal weight.
01:18It's pure chaos in your pocket, like that washing machine with a brick thrown inside. Thumbs up if you
01:24know what I'm talking about. These are the same style of vibrators that you would find in an Xbox
01:28controller. Shout out to the gamers. And surprisingly, it's also the same vibrator we find in the original
01:34iPhone. However, these eccentric rotating mass vibrators only had one kind of vibration,
01:41and comparatively slow response time since it had to spool up to full RPMs. Plus it's power hungry and
01:48uses a lot of battery. And then it does not immediately stop vibrating when the notification is over,
01:53since it has to spool back down. So the smartphone companies started swapping the ERM vibrators out
01:59for coin style vibrators in the early 2000s. Like this one inside the LG G6, may they rest in peace.
02:06It's a cute little guy. Coin style or pancake vibrators are also what we find in smart watches.
02:12They are quieter, cleaner, and they can start and stop quicker. But they still operate by throwing their
02:18weight around eccentrically. And they are not very good at providing complex vibrations for different
02:23situations, like gaming, text calls, or screen taps, all of which should feel different. Enter
02:30in the linear resonant actuators. It was Apple who made these haptic motors popular with their Taptic
02:36engine in the iPhones. So it's only fitting that we take a look at the vibrator inside of the new iPhone
02:41Air. These things are laser welded shut, so we've got to get a little creative. The cool thing about these
02:46Taptic engines is that they can provide an infinite number of custom feeling vibrations or taps. And
02:52since they are linear, they have more distance inside to throw their weight around. And since the
02:57form factor of the vibrator is longer, it has a stronger feeling vibration as well. The iPhone Air
03:03Taptic engine is a tad smaller than what we've historically seen in some of the other iPhones,
03:08and it'll be interesting to see what we find in the 17 Pro. We have the dual copper coils for instant
03:13feedback, as well as the magnet that is held in place by metal springs on either end. So it
03:18returns to the center point instantly after the vibrating signal has stopped. No spool down needed.
03:24We also see a very similar haptic vibrator inside the new Nintendo Switch 2 controllers.
03:29The easiest way to see a vibrator working in real life though is by looking inside the Life and P3 Pro.
03:35It's eerily similar in appearance to the iPhone vibrator. This is the shaver that Apple would make if
03:41Apple could make shavers. And since it's transparent, it is now my new favorite. Vibrating at 12,000 times
03:48a second is kind of hard to capture on camera, but let's take a closer look inside. Life and has
03:52impressively milled every component of this shaver out of aluminum, and then sandblasted and powder
03:58coated the whole thing so it feels pretty similar to a MacBook. Except for Life and says the P3 Pro can
04:04survive 8,000 drops. Well, I'm not sure your MacBook can say the same. I've always been curious about how
04:10these work. There is a rubber padding on the inside of the cutting head to keep the noise down. And the cutting heads
04:15themselves have little razors and knives under the surface of the grill that slice and dice using
04:20vibrations that are passed up through the cutting head. It's good to know they're replaceable. But you might be like,
04:26Hey Jerry, while you're in here so deep, why not explain why the cutting heads look so different? And that's a really good idea.
04:32As an obvious expert in shaving, I can tell you that the center flat portion we saw earlier is for
04:38the flat lying and longer hairs. While these two domed portions on either sides are filled with arc
04:44blade razors for cutting the short hairs and stubble. There are a lot of these slicey dicey boys and they
04:49are exactly as sharp as you'd expect. I like my fingers the way they are, so I'm being careful.
04:55It's the shape of this new internal arc blade though that makes all the difference. For comparison,
04:59my previous plastic brawn shaver, which does not have a transparent glass window on it,
05:04making it instantly not as cool, the old razor has a slightly thicker foil shielding on top,
05:10meaning that the shave isn't as close. And it trims at 10,000 cuts per minute where the lifen is
05:15slicing and dicing at 12,000 with those dual internal vibrators that we'll see in a second.
05:20And not to beat a dead horse, but the razors inside the brawn domes are circular and don't have quite
05:26the same shape or coverage as Lifen's arc blade. These details matter when the details are so small.
05:32Lifen has more of a broad dome arc, more of a mushroom shape. Shape is pretty important when it
05:37comes to the extra surface area you can achieve while cutting. The Lifen P3 Pro is looking pretty
05:42good. Plus the compact milled aluminum frame is going to make traveling a whole lot easier with
05:47its USB-C port. And the battery lasts for twice as long, but we'll get to that in a second.
05:52Let's jump into the vibrating body. This thing is IPX7 water resistant and can be submerged in 1 meter
05:58of water for 30 minutes. But even with all that protection, it's surprisingly easy to take apart.
06:04Easier than an iPhone, that's for sure. I'm still just happy they made it transparent,
06:08because transparent technology is the best technology. Pulling the dual vibrator motors
06:13out from the milled aluminum frame, Lifen says they used a 4 axis milling machine for each one of these
06:18housings, and I think it turned out super awesome. Taken apart, it does go into a low power vibration
06:24mode to not stress the motors since they have no load, but to accurately see how it works,
06:28we do need the vibrator going full blast. I can trick it into maxing out by putting the embedded
06:34magnets back on top again. It's wild how similar it functions when compared to the iPhone Taptic Engine.
06:40The metal plates on either side of the copper coils spring it back to center each time the vibrations
06:45stop. And since it's linear, it can adjust the force required for cutting in real time.
06:51Let's go even deeper. I'll remove the motors from the circuit boards. The batteries have gold pins
06:56that sit down inside the golden contact pads, similar to what we saw on the Framework laptop.
07:01It's interesting as well that we have dual batteries in here, one for either motor. Each one of them is
07:06510 mAh for a total of 1,020, giving us 100 minutes worth of vibrating. I also really like how there's
07:13a USB-C port so I don't have to bring a whole separate charging cable while traveling. Major
07:18bonus points for that. I'll remove some more of the milled components off the top of the dual vibrators.
07:24Lifan says that one vibrator motor could get the job done all by itself, but if they added two and have
07:30them both running at the same time in alternate directions, the vibrations cancel themselves out so
07:36less vibrations get transferred into the body of the shaver and the motion stays where it needs to on
07:41the cutting heads. However, you might be asking, Hey Jerry, the more affordable non-flagshift Life & P1
07:48Pro only has one linear motor inside. How does it offset the vibrations from its singular motor inside
07:54the handle? And I'm glad you asked. With the head popped off and the linear actuator removed from the
07:59body, it has the exact same motor we find inside the P3 Pro. Smart of them to keep the design modular
08:05between models. I can press out the hardware inside the handle out through the bottom of the shaver.
08:10It's got dual red rubber rings for its shower proof IPX7 waterproofing. And down here we also find the
08:17solution. It's a spring loaded brass ballast. Every vibration from the top of the tool gets countered by
08:23the ballast shifting at the bottom in real time 12,000 times a minute. They really thought of everything.
08:29Lifan says they've engineered these shavers for 10 years of stable, reliable performance,
08:34and after seeing the insides I'd have to agree.
08:37What if we jump up to the biggest vibrator I can find though, the jackhammer.
08:46Now physics kind of changes when you're handling the kind of vibrations that break up cement blocks.
08:51And I was hoping for a good view of the internals,
09:03but it turns out Makita doesn't make things quite as pretty as Lifan. I pulled off one handle and the
09:08shaft of the hammer, but I couldn't really see what was going on until we popped open the gearbox on the
09:13other side. Apparently when you need heavy vibrations, we skip the linear actuators and go straight into a
09:23gear driven crank. But you know, if you need to break up cement, I guess a Taptic engine from an iPhone
09:29just isn't going to get the same results. I'm a big fan of what Lifan has done. They did send me two of
09:35these P3 Pros, one to take apart and one to keep. And I'm not sure how I'm going to explain the patch of
09:41missing hair on my arm to my wife, but it does indeed work. If you want the coolest looking transparent
09:48CNC milled premium shaver for yourself, I'll leave a link down in the description. And thanks a ton for
09:53watching. I'll see you around.
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