Difference between ADXL325 and ADXL326 X axis Y axis Z axis sensor

Based on a quick comparison of the datasheets, the primary difference between these two parts is from the Noise Density specification.  Was that what you are asking about?

Yes.As you pointed out.
Please tell me about noise density.

Sorry to trouble you. Thank you for your kind response.

My point of question is not the difference between ADXL 325 and ADXL 326.
The point I would like to ask is the difference between the X, Y and Z axes in ADXL 325 and ADXL 326.

It is described separately from the XY axis and the Z axis in the data sheet.
For example, if you use the device tilted 90 degrees, does the Z axis show different performance from the XY axis?
Or is the XYZ axis essentially the same performance?

Thank you.
It helped a lot.

Confirmation.
The X, Y, and Z axes of ADXL 325 (ADLX 326) have the same performance.
Is this correct?

The values are available for review in each product's datasheet, so I am wondering what you are asking me to do.  What is it you want to know about Noise Density? 

Ok, that helps. So the performance behaviors will not change with respect to their orientation, with respect to gravity. Does that help you? Thanks again for posting!

No, that is not correct. The performance of each axis will be consistent, regardless of their orientation with respect to gravity. That does not mean that each axis will have the exact same performance as all the other axes, which seems to be what you're asking in this most recent message. 

Thank you.

" The performance of each axis will be consistent, regardless of their orientation with respect to gravity. "

I see.

Datasheet sey "Bandwidths can be selected to suit the application with a range of 0.5 Hz to 1600 Hz for X and Y axes and a range of 0.5 Hz to 550 Hz for the Z axis."

Please tell me about the performance difference between X axis, Y axis and Z axis.
I think there is no difference in performance between the X and Y axes, but I think that there is a difference in the Z axis.

I'm sorry
I arranged the question.

In the ADXL 326 datasheet, the X, Y and Z axes have the same noise density (300 μg / √Hz rms).
The X and Y axes are BW 1600 Hz and the Z axis is 550 Hz.

If the same filter (eg 500 Hz: 0.01 μF) is set for all axes
The X, Y and Z axes have the same noise floor.
Is this correct?

Thank you! This helps. We need to be careful in our interpretation. We rarely say things will be "the same" because all behaviors have some random variation, from axis to axis & part to part. I do not know if 1 or 2 axes will be better than the third, but I do know that the 1 sigma value for each axis will be at least as good as the spec in the datasheet. I hope that helps.