Let’s break this down
Where did you get it? in the webbing of thumb and index finger (Thenar)
1 week, should mean we are not dealing with swelling/
Who did the install
Do you think in is sitting in the facia layer? or is it possibly in the muscle?
So you are getting some reads?
What are you getting your reads on?
Have you used you xField detector to find the optimal read orientation of the NExT on the reader?
My KBR1 reader actually has always under performed, and the only time I get good consistant reads is when I remove it from the plastic housing…which is weird, because that should not affect the read at all, so you MAY have a dicky reader also, but unlikely ( try removing it from the housing.
What is the make and model of your “Other” reader?
The xSeries implants due to their shape and size of antenna they dont couple as well as a large flat antenna, which is why the Flex series implants read more easily, In saying that, the xSeries are perfectly adequate for most aplications when you learn the limitations and understand the realistic expectation of such a small discreet implant.
That is strange, the antenna is a much more suitable to reading an xSeries… Indicates to me at least, your Implant may be quite deep ( If you are struggling to read both HF AND LF side of your NExT.
It’s not the size of the coil, it’s what you do with it , its actually the shape that matters, as I stated above, xAC antenna much more compatible.
Which Phones specifically?
Have you checked WIKI - NFC phone performance
Key tags and Cards are not a fair comparison for the expectation to device to reader compatibility.
Our implants are a bespoke product put into a form factor that will fit into our bodies.
If you want the same readability expectations you would need to implant key-tags/cards.
Check out the DT youtube channel for video explanations,