Accelerometer Data Hz Rate

Good morning, 

I've seen that the Hz rate for sensor data has been capped at 25 Hz now for quite some time. 

Is it possible to retrieve the data at a higher rate?

I see the Apple I-watches are using variable rate depending on the watch hardware, but up to 100 Hz.

Why can't Garmin offer this also, it can improve the accuracy of certain applications?

Also

What happened to gyroscope data?