Apple is working on updating its 21.5-inch iMac model with a 4K display according to 9to5Mac. By the end of October, Apple is expected to unveil the new iMac, which could be a refreshed variant of the smaller iMac, alongside OS X El Captain.

Apple's 21.5-inch 4K iMac Coming In October [REPORT]

A much-needed update

Apple has not updated the 21.5-inch Mac since 2013. Apple refreshed the 27-inch iMac line-up earlier this year with a 5K resolution. The company also updated the MacBook Pro.

Shipping will start by the beginning of November, says the report, which cites sources familiar with the matter. The upcoming iMac’s 4K display will have a screen resolution of 4096×2304, which is higher than that of the current model of the iMac, which has a screen resolution of 1920×1080. The new iMac could be priced higher than the current one due to the higher resolution. Whether or not Apple is planning to release multiple models of the 21.5-inch iMac in October is not clear for now.

The processor used in the new device could be faster, and the color saturation might also be improved, according to the report. It is speculated that the system will come with Skylake chips, but nothing can be said with surety. According to MacRumors, the system will run on Broadwell chips and come with an Iris Pro Graphics 6200 chipset and AMD Radeon M380 – M395X graphics.

Apple 12-inch iPad Pro also expected

Though the overall PC market continued to shrink in the second quarter, growth was noticed in the Apple’s line of desktop and notebooks. Apple shipped 5.1 million units in the second-quarter, capturing 7.8% of the market versus 5.9% previously, according to IDC.

Apple may start taking preorders for the anticipated 12-inch iPad Pro around the same timr shipments start in November. Apple’s next tablet is expected to come with a number of new features such as a faster processor, Force Touch display, Bluetooth Stylus and 2GB of RAM.

Apple scheduled a media event on Sept. 9 at the Bill Graham Civic Auditorium in San Francisco, where it is expected to reveal the anticipated iPhone 6S, a revamped Apple TV set-top box, and the rumored iPad Pro.