Apple and Samsung are preparing to try and top the other with the upcoming releases of the iPhone 5S and Galaxy S4 respectively.

A majority of the current information on the two next-generation devices is based only rumors on rumors, but both of the smartphones appear to be evenly matched.

So how do the rumors currently compare Apple's iPhone 5S against Samsung's Galaxy S4?

The iPhone 5S will reportedly feature similar designs and dimensions of its predecessor. It will likely have a 4.8-inch Retina display with greater specs than the 1136 x 640 and 326 pixels-per-inch (ppi) that is on the current iPhone 5S. The display for the next iPhone is also rumored to potentially use Sharp's new IGZO display technology. This is compared to the Galaxy S4 which may come in as the larger device with a 4.99-inch Full HD display with 1080p resolution.

The Samsung Galaxy S4 is expected to have a new Exynos 5 Octa 8-Core processor, an S-Pen in the box and an enhanced Nature UX software skin. It will also come with Android 4.2 pre-loaded onto the device compared to Apple's iOS 6.1 on the iPhone 5S. It may also feature a new type of eye tracking technology based on patent filings Samsung made earlier this year.

Both devices are rumored to possess 13 megapixel cameras which will be an upgrade for the iPhone line over the current 8MP iSight camera in the iPhone 5.

If the iPhone 5S indeed uses the similar design of the previous version it will likely be the lightest and thinnest of the two devices. The iPhone 5 that is on the market measures in with a 7.6mm frame that only weighs 112 grams versus the current Galaxy S3 that is 8.6mm thick with a weight of 133 grams. The Galaxy S4 may change the current aspects of the device in order to match the slim smartphones that are trending on the market.

As far as when each company will unveil both the new devices, Samsung is rumored to possibly enter the market first. The latest release date rumors suggest Samsung is planning on launching the Galaxy S4 sometime between April 15 and April 22, according to Geeky-Gadgets.

The iPhone 5S is expected to be announced around mid-2013 with unspecified dates suggested for June or July, according to The Daily Mail.

It is still too early to identify the price for each, but that may not be much of a detractor as the high-end smartphones will likely be picked up by eager users willing to pay for the most up-to-date device.

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Apple, Samsung, Iphone 5s, Iphone 5s release date, Samsung galaxy s4 release date