The new iPhone goes on sale in the Republic today.
The iPhone 5 has been available in the North and Britain since last Friday.
The newest device from Apple has been breaking sales records for the company since its launch.
Irish networks 3, Vodafone and O2 are all carrying the iPhone 5.
The unlocked phone unit itself is being sold on the Apple Ireland website starting at €679.
Higher models which have more memory capacity have a price tag on the site of €789 and €899.
It measures 7.6 millimetres thin and weighs 112 grams.
That is 18 % thinner and 20% lighter than the previous iPhone 4S.
It also features a larger display of 326 pixels per inch which the company says is 18% more pixels than the previous model.
A new A6 chip in the 5 is said to be up to twice as fast compared with the A5 chip.
While an improved battery will provide up to 8 hours of browsing on a mobile data connection, up to 8 hours of talk time and up to 10 hours of video playback time, Apple says.
Staff at The O2 store on Grafton Street in Dublin has been busy supplying early bird customers with hot drinks and have promised a supply of umbrellas in the event that the weather turns.
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