Apple has announced it will finally sell the iPhone 6 and 6 Plus smartphones without SIMs in the U.S., reports TechCrunch. The completely unlocked version of the iPhone has been available in other countries, and now stateside consumers can enjoy the smartphones without carrier ties or SIM cards.

The iPhone 6 and 6 Plus pricing won't change, according to 9to5Mac's Mark Gurman. The iPhone 6 will cost between $649 to $849 depending on built-in storage, and the iPhone 6 Plus will be available from $749 to $949 as unlocked and SIM free. The storage options include 16, 64 and 128GB options (Apple cut the 32GB tier).

Apple Insider reports that on Tuesday, "the Apple Store began offering the unlocked option starting at the same $649 price for the entry-level 16-gigabyte iPhone 6." The two new unlocked iPhone models are the iPhone 6 model A1586 and the iPhone 6 Plus model A1524. 

The unlocked smartphones are compatible with worldwide carriers. U.S. customers can be activated on T-Mobile, AT&T, Sprint or Verizon.

The T-Mobile version of the iPhone 6 (model A1549) and 6 Plus (model A1522) is already unlocked and will work with all carrier SIMs. It is important to note iPhone 6 models sold from the Apple Store ship unlocked, but the units sold via T-Mobile are locked to its network.

The new SIM-free iPhone 6 and iPhone 6 Plus handsets offer consumers the option to use GSM carriers abroad.

Contract-free Sprint and Verizon customers can now upgrade and pay full price for an unlocked model.

There is a price increase for contract-free iPhone 6 and 6 Plus pricing. Consumers will pay $749 for an iPhone 6 with 64 gigabytes and $849 for an iPhone 6 with 128 gigabytes. The iPhone 6 Plus starts at $749 for 16 gigabytes and tacks on an additional $100 for higher storage tiers.

Apple is now selling contract-free iPhone 6 and iPhone 6 Plus online and in retail stores, according to 9to5Mac.