By I-Hsien Sherwood ( | First Posted: Apr 10, 2013 05:08 PM EDT
Tags HTC One

HTC One. (Photo : I-Hsien Sherwood)

The HTC One hits the United States on Sprint and AT&T Apr. 19, but if you were hoping to pick up either the unlocked version of the 64GB developer's version, you're out of luck; they're already sold out.

The HTC website lists both specialty versions as "out of stock," and there's no word whether HTC will be making any more of either one.

That means only the 16GB and 32GB stock HTC one models are available on Sprint and AT&T. A 64GB stock model will be an AT&T exclusive. The One doesn't come with an SD card slot, so whatever storage you get initially is what you're stuck with as long as you have the phone.

T-Mobile is also offering the 16GB and 32GB models of the One, but it looks like they're already sold out, too, though you can sign up to be notified when they have more in stock.

It could be a while, though, since HTC has been struggling with supply shortages. They've delayed the debut of the One by about six weeks, so there's no telling how long it will be before there are extra devices free for T-Mobile to sell.

Inside sources say HTC is no longer considered a "tier-one" customer by component manufacturers after its unreliable order history during a sales slump last year. That means the company must wait for its competitors to source their parts first before it has access, a fact that may further limit supplies of the One for the foreseeable future.

The HTC One features a 1.7GHz quad-core Qualcomm Snapdragon 600 processor, 2GB of RAM, a 4.7-inch 1920x1080 pixel widescreen Super LCD 3 display, a 2300 mAh Li-Po battery, a 4-megapixel "Ultrapixel" camera with enhanced low-light sensitivity with 1080p HD video, up to 64GB of internal storage and runs Android 4.1.2.

Check back for the latest updates on the HTC One as they become available.

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