While HTC One X's sister-model, the HTC One XL is nothing new, it was recently launched in the U.S. as the HTC One X by AT&T and the HTC One XL in Asia and Australia, the One XL is soon also ready for prime-time in Europe. Just approved by the Global Certification Forum, the One XL is basically the same device as the HTC One X. Running Android 4.0/Ice Cream Sandwich, which is enhanced with HTC's own HTC Sense 4 UI, the One XL isn't using the Nvidia Tegra 3 quad-core CPU but the Qualcomm S4 dual-core CPU at 1.5 GHz. The reason for this is, that Nvidia is yet not supporting LTE. The GCF approved One XL is supporting quadband GSM/GPRS/EDGE as well as triband UMTS/HSPA+/HSUPA at 900/1900/2100 MHz (Asia/Australia).
Unlike North America's AT&T version, which supports LTE at 700/1700 MHz (B17/B4) or the Asian/Australian version, which supports LTE at 1800/2600 MHz, the European version will support LTE at 800/2600 MHz as it is used in Europe, Latin America, South Korea, Singapore and Canada. Other features like the One X's DLNA certified WiFi a/b/g/n (at 2.4 and 5 GHz), Bluetooth 4.0, the Android typical Gyroscope and G-sensors, the digital compass as well as a proximity and an ambient light sensor as well as NFC ar expected to stay unchanged anyway.
It's expected that HTC will announce the European HTC One XL next week.
Cheers ~ Arne