Samsung Galaxy S2 and iPhone 5 may be the most sought after smartphones but both could receive a crushing blow from the rumored smartphones that promise to pack a punch if all the rumored specifications are true.

Below is the list of the devices.

HTC Holiday: HTC Holiday’s leaked images were previously released by an XDA Developer forum member. The device is rumored to feature a 4.5-inch capacitive screen with 960x540 screen resolution, and is expected to be powered by a 1.2GHz dual-core Qualcomm MSM8660 processor. The smartphone will sport an 8MP camera and offer 1GB of RAM.

The smartphone is likely to run on the Gingerbread version of Android and is expected to release on the AT&T Network.

HTC Vigor: The rumored 4.3-inch HTC device is expected to hit Verizon's 4G LTE network and will sport a 1.5GHz dual-core processor. The smartphone will arrive with 1280x720 screen resolution and sport an 8MP camera. The Vigor will run on Gingerbread juice and is expected to offer 1GB RAM, 16GB internal storage. Leaked pictures of the phone were recently posted on Droid Life. The device is also rumored to incorporate hip-hop artist/producer Dr. Dre backed Beats Electronics Technology.

Nexus Prime: Nexus Prime is rumored to be the first ever Ice Cream Sandwich-based pure Android phone that was supposed to arrive on Thanksgiving. The device is expected to be powered by a Qualcomm Snapdragon Krait chipset or TI OMAP4460 chipset at 1.5GHz. It is expected to be a dual-core 1.2GHz or 1.5GHz processor. Other specs include a monster-sized display, 5MP rear-facing camera with 1080p video capture capability, and 1 GB of RAM.

Motorola Droid HD: It is believed that Droid HD will bring the best of Gingerbread on a 4.5-inch display with a whooping 1280x720 screen resolution. The device is expected to arrive with an 8MP camera capable of shooting videos in 1080p. Images of the device revealed a SIM and a MicroSD slot on the device’s left side.

The device is expected to be around 8.5 or 9mm in thickness and could join the league of super thin Android smartphones if the rumors are true.

The Device is rumored to be also known as Motorola Dinara and is expected to arrive this winter.