(Pocket-lint) - Apple has updated its popular, entry-level 4-inch iPhone with larger capacities for the same prices.

The new iPhone SE models will be available from Friday 24 March priced from £379 when bought SIM-free.

They look the same as the existing models - like the original iPhone 5, but in gold, rose gold, silver and space grey colours. The extra capacity will come in handy for photos, apps and other storage-hungry features, however.

The current 16GB and 64GB models are being completely phased out.

Apple's announcement came as something of a surprise, alongside a new iPad model and bright red versions of its iPhone 7 and 7 Plus smartphones to help raise money for the (Product)RED charity.

The iPhone SE comes with a 4-inch Retina display (1136 x 640 pixels) and A9 processing chip. There is an M9 coprocessor too, for intensive graphics duties.

A 12-megapixel camera can be found on the rear and the phone is capable of recording video at up to 4K in 30fps. The front FaceTime HD camera has 1.2-megapixels and can record 720p video.

Like the iPhone 7, the SE has a fingerprint sensor in the home button and is compatible with Apple Pay so can be used to pay for purchases in many shops around the UK and abroad.

Writing by Rik Henderson.