Actual Metal Bumpers that doesnt affect signal?

6thDAY

macrumors 6502a
Original poster
Apr 14, 2010
682
72
Can anyone recommend me iphone 5/5S bumpers that are actual metal, and not anodized plastic?
 

Radiating

macrumors 65816
Dec 29, 2011
1,018
7
Can anyone recommend me iphone 5/5S bumpers that are actual metal, and not anodized plastic?
I've tried over 35 aluminium bumpers. Only the Al13 and Elago S5 aluminium bumpers (which is junk) do not degrade the signal. Literally I noticed no difference in signal strength. Though out of 3 AL13 bumpers I got (different colors) one was slightly deformed and affected call quality until I bent it slightly.
 
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