Hi, We are a research team that is just beginning to use SensorKit to collect data for our research. Currently, We've gotten far enough through the process of setting up and using sensorKit to be able to start collecting data through the OS and we've created an SRFetchRequest, but we're just unsure of how to actually go about retrieving the data in a usable form and being able to write it to a file or upload it to a server. We're specifically lost when it comes to SRFetchResult and what to do with that. If anyone was able to provide an example from their own code/somewhere we can find an example, or anything that might help, that would be greatly appreciated. Thank you!

Is it possible to get the height (Z location) of an iOS device based on sensor data? I've continuously added the accelerometer data up to infer the location but it results in a cascading error, and the inferred location of the phone "drifts" when the phone is placed still. I want to build an app where users measure the height of something by first zeroing the phone on the floor and then raising the phone to the height of the object, like placing it on the table.

Professor said I can get RAW data from apple watch, but he didn't know specific data what we can collect. Can I get RAW data from apple watch? and which datas can I get?

Hi, I am trying to find out the GPS/Location update rate that the iPhone14 can accomplish. Most GPS update rates are 1hz (1 location update per second). I am hoping that the newest iPhones can provide a faster update rate. Also I would like to know the accuracy of the GPS. It is 100meter, 50meter, 10meter, 3meter? Where could I find this information? Thanks, Adam

Hi, We are a group of PhD student working on developing a health related app using SensorKit and AppleHealth Kit. We submited our research propsal on Feb 16 and have not heard back from apple support. We wonder that how long would be the processing time? Thanks,

Hi, My middle schooler is working on a project for National Science Fair competition to estimate blood pressure from ppg signals. While he is using external database to develop his algorithm, it would be very useful to test it with real time data. I have a Series 6 watch and wondering how I can access my ppg sensor raw data.