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by bgill5 5275 days ago
Many phones use different algorithms to translate the actual signal strength into visual signal bars. Just because two different phones might say 3/5 bars they could actually have very different underlying signal strength and simply have varying levels of optimism in their interpretation.

You can get a dB reading for your Galaxy Nexus by going to Settings -> About Phone -> Status. The Signal Strength field should give it to you in both dB and ASU.