>While the Galaxy S3 is slimmer, the HTC One X is just 0.3mm bigger, but it’s “lighter, feels slimmer and looks way better.”
>The Galaxy S3 has a removable battery, but the HTC One X’s battery can “easily” last a full day. The HTC One X non-removable battery design “allows implementation of unibody design which is more resistant to dust and water.” Furthermore, the Galaxy S3’s removable battery means that users will need a separate battery charger, “often impractical, especially when traveling.” When changing batteries, the Galaxy S3 would have to be turned off to make the change.
>While the Galaxy S3 has a micro SD card slot that lets users bump their total memory, the One X comes with 32GB internal memory and 25GB of Dropbox cloud storage.
>The Galaxy S3 has a bigger display, but it’s “less bright and blush especially from an angle and is lower density.” Moreover, the PenTile technology used by the Galaxy S3 display is “commonly known as being inferior compare [sic] to true HD LCD display.” HTC goes to great lengths to compare the two display technologies by showing the differences between AMOLED and SLCD2 displays and between PenTile and regular RGB-RGB panels.
One x vs S3 comparison > http://www.mobile88.com/news/read.asp?file=/2012/6/27/20120627090923&phone=Comparison-Samsung-Galaxy-S3-vs-HTC-One-X
One x specs > http://www.mobile88.com/cellphone/htc/htc-one-x/preview.asp
S3 specs > http://www.mobile88.com/cellphone/samsung/samsung-galaxy-s-iii/preview.asp