Apple Inc (NASDAQ:AAPL)’s iPhone 6, Samsung Electronics Co. Ltd. (LON:BC94) (KRX:005930)’s Galaxy S5 and Google Inc (NASDAQ:GOOG)’s Nexus 6 are highly anticipated devices from three of the world’s largest tech juggernauts. Though Google Inc (NASDAQ:GOOG)’s Nexus 5 was launched just last month, rumor mills and creative pros are coming up with various concept designs and speculated features of its successor. Let’s compare the top three upcoming devices to see how they hypothetically stand against one another.

iPhone 6 vs Galaxy s5

iPhone 6 vs. Galaxy S5 vs. Nexus 6: design

The iPhone 6 is likely to sport a bigger display with a metal chassis. Apple Inc. (NASDAQ:AAPL) rarely changes the design of its smartphones. But this time, the company is rumored to launch the iPhone 6 with a screen between 4.7-inches and 5.8-inches to compete with phablets from Samsung Electronics Co. Ltd. (LON:BC94) (KRX:005930) that are increasingly gaining market share. The iPhone 6 is expected to sport an edge-to-edge screen. The Cupertino-based company recently paid $578 million to GT Advanced Technologies that manufactures sapphire crystal. So, it’s widely rumored that the entire screen of the iPhone 6 will be made with tougher-than-concrete sapphire crystal. There have also been rumors that the iPhone 6 may come with a curved display.

On the other hand, there have been reports that Samsung Electronics Co. Ltd (LON:BC94) (KRX:005930) may finally dump its polycarbonate body. The Galaxy S5 may sport the unibody aluminum chassis. The Korean electronics giant has reportedly struck a deal with Catcher, which makes the unibody chassis for the iPad and MacBook. The Galaxy S5 is widely expected to feature a 5-inch screen with a Super AMOLED, 4K display.

A concept design of the Nexus 6 reveals that the device will look similar to its predecessor and the HTC One. It is expected to feature a Super LCD3, Full HD 5-inch screen. Another concept design indicates that it will have a 5.2-inch screen with 2560 x 1440 pixel resolution. There were also speculations that Samsung Electronics Co. Ltd (LON:BC94) (KRX:005930) may snatch the Nexus manufacturing contract from LG Electronics, and bring the Nexus 6 with a Full HD AMOLED, edge-to-edge screen.

iPhone 6 vs. Galaxy S5 vs. Nexus 6: operating system

The iPhone 6 is highly likely to feature the revamped version of iOS7, which may be iOS7.1 or iOS 8. The biggest highlight of iOS 8 will be the new, improved mapping app. Apple Inc. (NASDAQ:AAPL) recently filed for an improved maps app. The Galaxy S5 is rumored to come with the latest Android 4.4 Kit Kat. But the Korean company is also developing its own operating system named Tizen. So, we believe the Galaxy S5 may come in two versions, one with Android and another with Tizen. Google Inc. (NASDAQ:GOOG)’s Nexus 6 may feature Android 4.5 Lollipop or ChromeOS. PhonesReview says that Google Inc. (NASDAQ:GOOG) may merge ChromeOS with Android to make an improved operating system for the Nexus 6.

iPhone 6 vs. Galaxy S5. vs. Nexus 6: camera

Apple Inc. (NASDAQ:AAPL) recently won a patent for refocusable camera that lets users refocus an image even after it has been taken using plenoptic technology. The Cupertino-based company has struck a deal with Sony Corp, which makes that makes 12- and 13-MP camera sensors. In contrast, the Galaxy S5 is likely to sport a 16-MP camera with ISOCELL technology. The ISOCELL technology allows users to take better images in low-light environments. The Nexus 6 is speculated to be packed with 13-MP rear and 2-MP front camera.

iPhone 6 vs. Galaxy S5 vs. Nexus 6

The iPhone 6 is expected to be packed with a 64-bit A8 processor, or an improved version of A7 that’s inside iPhone 5S. Samsung Electronics Co. Ltd (LON:BC94) (KRX:005930) is also speculated to up the ante with a 64-bit processor. The Galaxy S5 is likely to come with Exynos 5430 processor with 3- or 4GB RAM. Google Inc. (NASDAQ:GOOG) is also expected to bring the Nexus 6 with 64-bit architecture. A concept design by Bob Freking reveals that it will sport a six-core Qualcomm Snapdragon 1000 processor with 6GB RAM.

With each generation, the technology companies are stuffing their smartphones with more power, better cameras, and attractive designs. Let’s see how these devices fare in the market upon release.