This question basically is hard to answer as iPhone stylish cases go crazy on the market these years yet bumper is still the best choice of protecting your phone. According to a marketing research from Google, men are more likely to use bumper rather a case but women prefer to have many distinctive style cases for weekly or even daily switching.
Not difficult to guess, protective bumper can protect the phone from dirty, snip and scratches but the slight down side is about the signal drops. We have made a signal strength test, the results:
Signal Strength Test
Have a Bumper
(-)103 dBM 5asu
(-)105 dBM 4asu
Do Not Have a Bumper
(-)93 dBM 9asu
(-)95 dBm 9asu
What is mean by dBM and asu? dBm is used to signify signal strength by radio, the lower the dBM, the less strength the signal is (-103 is worse than -93). ASU is the frequency of active service update which is a measurement of the amount of updates the radio is sending to the tower.
DSstyles has produced a set of metal bumpers in 7 colors which all are high quality made and extremely fit Samsung Galaxy S3. The Protective bumper is made of scratched-resistant aircraft grade anodized aluminum. Overall the bumper looks smart and the shiny metal surface goes perfect with Samsung Galaxy S3. Handy and stylish are always our design principle and so here I would suggest if you are looking for a full protection to your galaxy s3, DSstyles Bumper Metallic series case for Samsung Galaxy S3 should be put on your to-buy list!
We have also published a video about how to set up the metal bumper for your galaxy s3.
Shop the Samsung Galaxy S3 Cases Collection: