Antenna Strength on DTEK60

I think this has been discussed previously................... but it seems that from a visual signal strength it hardly ever gets past the 1st or 2nd bar. Also 4g hardly ever shows. Always showed strong signal strength with my z30.

I am with ATT as i was with the Z30.

Does the DTEK 60 not have as good reception as the z30?

Just wondering..............

I have had full signal bars many times with 4G. But so many variables affect signal.
How far from tower
How you're holding the phone
Type of case on the phone
Type of building structure you're in concrete, wood
etc,etc