The HTC One X had a significant lead over the Samsung Galaxy S III in terms of time on the market. During this time, the HTC One X was able to capture a lot of the market and many commented that this device was one of the best that HTC had produced for a while.
The Samsung Galaxy S3 was released and did take a lot of the shine away from the HTC One X. The Galaxy S3 is slightly bigger than the One X but not enough to be very noticeable. The Galaxy S3 is thinner and measures 8.6mm whereas the One X measures 8.9mm.