I came form a Note 2, and I think my M8 gets slightly less reception than it, esp in terms of holding onto 4G signal. Because I work in a basement of a building, where my Note 2 was usually able to hold onto a bar or two of LTE like 90% of the time. Now my M8 constantly flips between 4G and 3G, usually sticking to 3G when I go to actually use the data connection.
I've done a few dB comparison tests between my M8 and my wife's GS4 side by side and the GS4 seems to always be about -5 dBs lower/better than my M8 as well. This is really the only area (besides the camera) where I'm somewhat disappointed in the M8s performance. I'm hoping a baseband update will be able to improve this connection stability.
I've noticed a lot of times too, where I'll have a data connection, say a few bars of 3G, but the phone will not acknowledge that it's connected. So when I try to use any app requiring network access, it immediately tells me I don't have a connection and to try again later. Has anyone else seen this?
On the flip side though, WiFi reception seems to be better on my M8 than my Note 2, as I can go further away from my house and maintain connection (like when I'm mowing) on my M8 than I could with my Note 2.
Sent from hardware running software.