So I've noticed since I've had my S4 that the Activity app seems to be crediting me with stand hours, even when I've been sitting on my ample rear for hours without moving. For example, I wasn't feeling too well this weekend and spent it mostly on the sofa catching up with TV shows and not really moving much at all. So I was surprised to see that the Activity app had given me credit for every single stand hour that day. Is anyone else seeing this? Could it be an accelerometer issue? I've rebooted the watch but it's made no difference. Watch and phone are both fully up to date re software. For info, everything else seems fine — the pedometer seems right, the exercise and move rings seem to be filling (or not) as normal. Weird, no?