The clear piece over the diode is likely man made sapphire(Al2O3) for scratch resistance and possibly clarity. Sapphire is very dense and that's why it looks that way on the Lumafield.
The charging coils on the base are orthogonal to the registration section, so I think having two isn't so much about rotational alignment, but rather for accommodating a *flip* of the ring - regardless of whether you put it right-side-up or upside-down on the base, the coils will align.
Just to clarify, the registration flat on the ring is the pulse oximeter and the scans show how the charging coil in the ring is 90° away. If you put the ring on right-side-up, then the ring's charging coil will be on the left. If you put the ring on upside-down (flipped over), then the charging coil will be on the right. The two coils on the base account for this and ensure at least one of the coils is tightly coupled to the ring's single coil.
I was watching the video just to see if they ever figured out that the ring has the coil on one side (not front or back) so flipping the ring would need 2 coils in the charger. Seems like a simple thing to figure out. Lol
The intention of plate in front of the diodes might be to be (more) scratch-resistant than than the rest of the plastic. I imagine a little bit of dust, sweat and activity would frost the internal over time.
Love these teardowns! The PPG/SpO2 sensor is definitely a Maxim part. They make these fully integrated optical bio sensor modules. F.e. MAXM86161 looks close The other weird package is a. IR thermometer from Melexis the MLX90632
The charger is pretty interesting! No ferrite core explains why it has so powerful controller... The resonant frequency will be changing with it's position and then the fact that the ring itself is basically loop of conductive material so it forms shorted winding. My guess is that the controller does extra work of keeping the frequency and waveform correct. The second coil confirms it as they need to keep the magnetic field to increase the efficiency of the wireless charging and allow charging of bigger ring on smaller base flipped like Becky mentioned.
The 2D barcode is Data Matrix. Same sort of barcode as one finds on a Digikey label. I wasn't able to scan this one from the video, but its probably just lot/date code anyway. Perhaps that chip is the MEMS IMU/accelerometer?
I have been looking to get one but I would like something that also has touch buttons to control things. I had one that was a third of the price but it kept breaking 😅
Didn't catch you at OpenSauce, hope you had a nice time and learned a ton. As for this smash and dash, these things never fit my hands, but interesting break down!
Cool gadget. I’m however still dubious about the benefit of such a device. Sure it has cool sensors, but they aren’t medical grade, so not something which can be used for anything other than “rough guesstimates”. So cool as a gadget,but not sure of the overall value. My $0.02 CND
all these parts are "medical grade" and are in fact used in medical devices. That is not what differentiates medical devices from consumer devices. The use case is what makes the difference and you can't have a device on your finger give you autonomous medical advise. Doesn't mean the data produced by these rings isn't useful.
@@timonsku ok - but by medical grade I mean something which could be used in a hospital- these certainly are not… nor should they be trusted as a source for medical diagnosis… so in that context no, not medical grade at least not byCanadian standards. Means basically a gadget which may or may not indicate a medical affliction. Still a cool gizmo.
I see this with some smart devices coming out with 'blood sugar' monitoring. However, at present to actually get a true measurement of blood sugar a sub-cutaneous sensor is needed. Anyone that claims otherwise will have super vague data, that is not that helpful.
The clear piece over the diode is likely man made sapphire(Al2O3) for scratch resistance and possibly clarity. Sapphire is very dense and that's why it looks that way on the Lumafield.
The charging coils on the base are orthogonal to the registration section, so I think having two isn't so much about rotational alignment, but rather for accommodating a *flip* of the ring - regardless of whether you put it right-side-up or upside-down on the base, the coils will align.
Exactly this!
Exactly, was saying if they flip the ring over all the points are mirrored
Just to clarify, the registration flat on the ring is the pulse oximeter and the scans show how the charging coil in the ring is 90° away. If you put the ring on right-side-up, then the ring's charging coil will be on the left. If you put the ring on upside-down (flipped over), then the charging coil will be on the right. The two coils on the base account for this and ensure at least one of the coils is tightly coupled to the ring's single coil.
I was watching the video just to see if they ever figured out that the ring has the coil on one side (not front or back) so flipping the ring would need 2 coils in the charger. Seems like a simple thing to figure out. Lol
This was so fun. That Lumafield scan is amazing.
That scan was amazing! Thank you for going though the effort of the teardown and documentation.
The intention of plate in front of the diodes might be to be (more) scratch-resistant than than the rest of the plastic. I imagine a little bit of dust, sweat and activity would frost the internal over time.
Love these teardowns!
The PPG/SpO2 sensor is definitely a Maxim part. They make these fully integrated optical bio sensor modules.
F.e. MAXM86161 looks close
The other weird package is a. IR thermometer from Melexis the MLX90632
Nice. Been wearing my review unit for 3 weeks now, cool seeing this!
The charger is pretty interesting! No ferrite core explains why it has so powerful controller... The resonant frequency will be changing with it's position and then the fact that the ring itself is basically loop of conductive material so it forms shorted winding.
My guess is that the controller does extra work of keeping the frequency and waveform correct.
The second coil confirms it as they need to keep the magnetic field to increase the efficiency of the wireless charging and allow charging of bigger ring on smaller base flipped like Becky mentioned.
Awesome teardown. Thanks for sharing and hope you feel better soon.
I love the window entrance! It's go 'Clarissa Explains it All' vibes, and it's great! 🎉
I love it when folks get the reference, we do it every teardown 🥰
The 2D barcode is Data Matrix. Same sort of barcode as one finds on a Digikey label. I wasn't able to scan this one from the video, but its probably just lot/date code anyway. Perhaps that chip is the MEMS IMU/accelerometer?
These are always fascinating. : )
The antenna is 2450AT18B0100001E
And someone who seen their cuticles under a microscope, I'm quite happy not looking at somebody else's.
Does it also do pulse oximetry? I'm looking for something less bulky than the Wellue O2 Ring.
I have been looking to get one but I would like something that also has touch buttons to control things. I had one that was a third of the price but it kept breaking 😅
Didn't catch you at OpenSauce, hope you had a nice time and learned a ton. As for this smash and dash, these things never fit my hands, but interesting break down!
🎉🎉
27:52 you have a lizard?????
We were just babysitting her while our friends was out of town! Isn't she cute?!
@@BeckyStern very very charming!!!!
350$
WHAT THE SHIT
Insanity
Cool gadget. I’m however still dubious about the benefit of such a device. Sure it has cool sensors, but they aren’t medical grade, so not something which can be used for anything other than “rough guesstimates”.
So cool as a gadget,but not sure of the overall value.
My $0.02 CND
all these parts are "medical grade" and are in fact used in medical devices.
That is not what differentiates medical devices from consumer devices.
The use case is what makes the difference and you can't have a device on your finger give you autonomous medical advise. Doesn't mean the data produced by these rings isn't useful.
@@timonsku ok - but by medical grade I mean something which could be used in a hospital- these certainly are not… nor should they be trusted as a source for medical diagnosis… so in that context no, not medical grade at least not byCanadian standards.
Means basically a gadget which may or may not indicate a medical affliction.
Still a cool gizmo.
I see this with some smart devices coming out with 'blood sugar' monitoring. However, at present to actually get a true measurement of blood sugar a sub-cutaneous sensor is needed. Anyone that claims otherwise will have super vague data, that is not that helpful.
Compared to my Polar wrist heart rate monitor, my Oura ring (so not this one) is way worse in terms of accuracy.
Might have been nice if you'd started with an explanation of what the hell an "Ultrahuman Ring AIR" IS?!?
It's not the product. You are!