Hello,
LEMFO LEM14 has very bad heart rate monitor. It delivers the seemingly valid heart rate data also in the case if the watch is not on the hand. Does LEM15 work also in this way or it can recognize the “not on the hand” case? Thank you.
This question has been answered many times…
The heart rate sensor will activate randomly to update watch faces that use the information. Regardless of the watch face skin you are using.
The accuracy is important though and we are looking at it.
No, the LEM15 is not the same.
I think Sergey is referring to the following: If we have LEM14 on a surface that does not emit pulses, when activating the heart rate sensor it will give us values, which, logically, are not valid. This behavior is different, for example, from Prime1, which, when not detecting a pulse, will say that there is a reading error, which makes more sense. However, once it is on the wrist, the LEM14 gives correct values and pretty much the same as the Prime and others, so you can’t say that the LEM14 has a bad heart rate monitor.
On the other hand, Pablo11 is referring, I think, to the random activation of the rear green light without the heart rate monitor being manually activated.
Thank you for your answer, but I am no sure, that it answers my question. Sorry for misunderstanding, but the question is not about faces and random activation of heart rate sensor. But yes, about it’s accuracy.
I am writing my custom app, that should periodically read the heart rate and send it to the server. Over Android API I get always the accuracy = 0 (the lowest one, that is not acceptable for most use cases). The heart rate itself seems to be more or less valid, but these “valid” values I get also if the watch just stays on the table, what doesn’t make any sense.
In the same way it works also in built-in app for heart rate measuring. The issue seems to be in the sensor itself, not in apps.
Therefore my question was, does LEM15 heart rate sensor work in the same manner? Or some hardware adjustments were done in comparison to LEM14, and the accuracy is not always zero now? You could verify that just starting build-in heart rate app and checking if it delivers some values if the watch is not on the hand.
Thank you again and sorry for my english.
@Alvaro28 Thank you, it is exactly what I meant. I want to get a reading error, not some heart rate values, if the watch is not on the wrist. Does LEM15 behave in this way or like LEM14?
Sorry, I don’t have the LEM15, so I don’t know it
I understand what you mean now and it is not really appropriate for this general support thread.
It is development related and I will create a new thread for you to discuss it.
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Is there a how to - to become notification time permanently - up to delete them manually.
In moment there are only google notifikations which stay longer.
Best regards
Eike
Almost perfect, the only defect is that is just IP67 and not IP68…
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Mr Smartwatchticks, on your Lem 15 video you said none of these watches have bluetooth tethering. My lem12pro have bluetooth tethering, I’m running FAW firmware. Works well with my Google Pixel 4a.
he probably meant bluetooth calling
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Yes, correct @noidremained , no Bluetooth calling. They all have Bluetooth tethering. Sorry if I misspoke on the video.
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Back on topic now
Hello.
My Lem15 had arrived and i have to say, for my experience, is not as good as Lem 12 Pro.
In addition, factory rom has some bugs:
- Slow performance
- It hangs when you operate in a few minutes.
- Apart: Screen not as good as lem 12 Pro. Too much green color.
- Speaker sounds lower than Lem 12 Pro.
Can you tell me what version of the stock firmware you have?
It would be useful to know and I will test it for you
Of course, thank you Pablo.
Z36_Lem15_V1.2_20210510
I will will post an update for you.
Hopefully it will be able to be updated from the watch storage.
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Excellent! If you can, try to update Lem15 to Faw as soon as you can. Last Rom on L12Pro is great… All aspects are fixed for me!
Ps: Mic works great on Lem15 doing video calls.
I understand - but it is not our decision and we are working with our team at Wiiteer.
As soon as we are decided you will be the first to know 
I recommend you flash this or factory reset if you cannot flash.
If this is not successful I suggest that you contact the seller and negotiate a replacement by making a video that shows the problem.
But I am hoping that a clean flash using the firmware upgrade option in the flash tool will sort it out 
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Yes, i understand FAW firmware needs discussion.
From what i read the feedback about the FAW firmware is overwhelmingly positive.
So to give you further arguments: please know i´m waiting too 
for the APPLLP4
About this Firmware: Can i flash it on the APPLLP4 ? Are there any significant differences to the LEM15 FW? If so: Which one sshould i use?
Thank you.