E-M5 sometimes annoys, maybe get an E-M10?

Henry Richardson wrote:

I happened to be near a big electronic store today so I dropped in to look at the E-M10 again. It has been a few months since I handled one. Never was much interested in it before. The buttons are definitely a step up from the E-M5 and makes using it a bit less fiddly. I checked the turn on speed and it seems to be about 0.5 seconds. That is a bit better than my E-M5.

I especially wanted to check the wake up from sleep mode speed, but for some reason I could not get the darn camera to go to sleep. I set the sleep time to 1 minute and then set the camera down on the counter and stood about a meter away while I played with an E-M1. The camera never went to sleep even after 5 minutes. I then checked the menu again and verified it was set to sleep after 1 minute so tried again. Turned the camera off and then back on. Still wouldn't go to sleep. After 10 minutes of fooling around with it I gave up. The camera would not go to sleep. My E-M5 is also set to 1 minute and it goes to sleep. I thought there was a chance that the eye sensor of the E-M10 had something to do with it so I made sure the eye sensor would detect nothing near it and nothing moving anywhere in its vicinity. Still the E-M10 would not go to sleep. Darn. The thing I was most interested in checking was the wake up speed.

As I was reading your post, I pulled mine from the bag, checked the 1 minute sleep setting, let it sit in my desk, and waited. After a minute, the sensor made the usual thump! and off it went. Stopwatch App in my iPhone at the ready, tapped both the screen and shutter button, and screen reappeared in 00:00:60 secs. So, I'd say half a second is a pretty accurate figure.

in fact, I did it a couple times more, and the number was around that. I even pressed the shutter all the way, set MF first, to avoid focusing when waking up, and it started shooting right away.

I believe the unit you handled might have been a display unit that had sleep disabled, in some way. I can see no other option to disable sleep mode using the menu.