AT&T and Sprint Tuesday separately announced plans to start selling 32GB HTC One smartphones on April 19 for $199.99 with a two-year contract.
AT&T said it will be only U.S. carrier to launch a 64 GB version of the HTC One. The high-end device will sell for $299.99 with a two-year contract.
Meanwhile, T-Mobile USA said Tuesday that it will begin selling the HTC One device "sometime in the spring." T-Mobile said it will charge $99 down with 24 equal payments of $20 in a low-subsidy, no-contract plan.
Online reservations for AT&T's HTC One device will begin at 1 p.m. (CT) Thursday.
Online reservations for the Sprint HTC One begin on Friday at an undisclosed time.
AT&T is also offering for a limited time a free (with separate two-year contract) HTC Media Link HD wireless HDMI adapter with the device to connect the phone to an HD TV.
AT&T and Sprint each confirmed that the HTC One will be available in black or silver.
The HTC One runs a 1.7 GHz quad-core processor, sports an aluminum case and has a 4.7-in. full HD screen. It runs Android 4.1 and has a new HTC Sense interface that some analysts have compared to the tiles used in Windows Phone 8.
The device will run on the LTE wireless networks of both AT&T and Sprint (and in seven cities so far with T-Mobile), and has a bigger than average 2300 mAh battery.
Verizon Wireless Tuesday would not comment on its plans for the HTC One.
AT&T posted a short video about the HTC One on its Web site with a full press release.
The HTC One is arriving several weeks later than the mid-March time frame that HTC announced in mid-February.
At the February announcement, one of the biggest innovations touted by HTC was its Ultrapixel camera, designed to take better photos in low light. The camera is rated at 4 megapixels, but HTC argues that it can capture more light and uses fewer, but larger pixels for better shots.
Several smartphones on the market now have 13 megapixel cameras.
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