My 5S gyro/accelerometer is off by about 4 degrees or more. Many having this issue!

My iPhone 5s is off by -4 degree. Same with the wife's iPhone 5s. 😟 Playing games on the 5s that use the accelerometer just stinks because of this issue. 😟

I have this issue as well. Is this hardware or software? I also notice a significant stutter in the background parallax effect when waking the phone or closing an app. Could the problems be related?

The same issue on my iPhone 5s. Calibration on this level is definately off, and varies by edge of the phone used (or on its back)

Same here. Mine is about level when standing vertically, but it's off by 3 degrees when on its side (which is typically how I'd use it for use as a level). So the error isn't even the same for all orientations.

Hopefully there'll be an update to fix the calibration algorithm (which itself seems a bit flaky sometimes).

My iPhone 5s is also off by 4 degrees when using the level on it's back (screen up) I had an iPhone 4 and 4s that I upgraded to iOS 7 and both were perfect, but the 5s is off. Holding it vertically it is also off by 1 or 2 degrees.

There are other level apps that allow you to calibrate or zero the level. Shouldn't be all that difficult for Apple to implement. A work around right now is to put the iPhone on a known level surface and tap the screen once to enter the "match that slope" mode. As long as I don't accidently touch the screen again it works for a while.

My gyro is also off approximately 4 degrees. So annoying.

me too..3 degrees !! hardware or software bug ???

Any thoughts on how this might get corrected? Anyone go back and get it replaced with one that works properly?

I would have to concur as well mine is off too, it is tough playing real racing 3 now on my 5s. Is there any fix for this?

I'm experiencing the same problem with my iPhone 5S. Definitely a widespread issue. Demo units in Apple store have same issues as well. I just compared my 5S with 3 other iPhone 5 phones. iPhone 5 phones all are level, 0 degrees on both their back and side on flat surface. My iPhone 5S is off by 4 degrees while on its back and 2 degrees while on its side. I sure hope this can be fixed with a software update very soon. Affects many apps and functions of the phone. My compass is off as well. I especially hope Apple at least release some sort of acknowledgment soon as well so 5S owners know what to expect.

My 5S is off 1 degree when on its right side and 6 degrees when on its left side! Lying on it's back it's off 4 degrees.

Count me in, too. 4 degrees off when laying flat on it's back, 2 degrees off when laying on the side with the sim tray. White 16gb at&t iphone 5s.

I can confirm that my 5S also has the gyro problem

Horizontal (long side on table) is correct at 0 degrees
Verticle is off by -3 degrees
Tilt is off by -2 degrees

I also find Compass/Leveler app would go out of wack. If I flip the phone a bit and turn it around, it would entirely throw off the readings. The only way to get it back to normal reading is the close the app and "re-calibrate" from the start up screen.

Also, when I use google map navigation in 1st person view, the viewpoint would be tilted in one direction. Also the movement of the status would be jaggy and jump and shakes. This also led me to believe the acceleorameter, etc. is not providing proper value either (as mentioned in the gizmodo article).

Mine too. My wife has an iPhone 5 and when you put them on top of one another hers shows level and mine is from 2-3 degrees off.