The new 4.7-inch iPhone 6 and 5.5-inch iPhone 6 Plus are now available to order, giving Apple users who want a big-screen experience something to consider.

At just 6.9 mm thick, the iPhone 6 feels thinner in your hand, with its rounded glass that curves around the edges of the phone.

It weighs just 129 grams and is available in gold, silver, and space gray.

The “on” switch has been moved to the side and the new iOS 8 allows one-handed navigation on the bigger screen, so you can still use it while standing on a train or bus.

Its 8-megapixel iPhone 6 iSight camera has a new sensor with faster focus and a panorama mode that will capture up to 43 megapixels.

Both versions have digital image stabilisation, but only the Plus model has optical image stabilisation.

There have been improvements to the FaceTime 1.2-megapixel front-facing camera with “face detection” and focus to aim for better accuracy.

The new A8 64-bit processor claims 50 percent faster graphics and a 25 percent faster CPU, which makes it more power-efficient.

iOS 8 has some cool features like Continuity and Handoff where you can start a doc or e-mail, or start browsing a web page on your Mac and finish it off on your iPhone 6 at the same place where you left off.

Apple claims the battery will last up to 10 hours over 3G and 4G LTE, and up to 11 hours on Wi-Fi and video. It has Wi-Fi calling and Voice over LTE and the potential for LTE download speeds of 150Mbps.

The iPhone 6 supports Wi-Fi 802.11 which allows Wi-Fi speeds three times faster than those in the iPhone 5S.

Apple Pay, is only available in the US, but it won’t be long before it comes to Australia. It allows you to you buy goods with a single touch of the phone. It claims to be more secure because the merchant never sees your credit card details, as it uses the Passbook app on your phone.

Who should upgrade?

If you want:

  • the very latest model
  • a larger screen
  • to use Apple Pay when it arrives in Australia
  • more storage (the new models can have 128GB.)

…then you should look at upgrading.

However, with a record 4 million first-day pre-orders – double the number for the iPhone 5 – it seems most people just can’t wait.