When deciding on which smartphone to purchase, be sure to pay attention to the stats that are important to you, both internally and externally. A brief overview of two phones, the Microsoft Lumia 535 and the Asus Zenfone 5 may help provide some insight.

In terms of operating systems, the two devices differ. The Lumia 535 uses the Windows phone v8.1 system, while the Zenfone 5 uses the Android Jelly Bean system, which can be bumped up to KitKat.

In product reviews, the Asus phone had a faster CPU at 1.6GHz, providing easier uploading and downloading on the device. The Zenfone 5 also excelled in RAM, with 100% more than the Lumia 535. Therefore, the Zenfone 5 runs faster and can download and run more apps at the same time.

Resolution is better on the Zenfone 5, with seventy-seven percent more pixels for a more clear-cut image. Photos and videos also look better on the Asus phone, with its eight-megapixel camera that supports HD video recording. Consumers will get more battery life out of the Zenfone 5, which has ten percent more battery space than the Lumia 535.

In defense of the Lumia 535, this phone is slimmer than the Zenfone 5, making it more mobile and comfortable in user's pockets and hands. A removable battery is a feature not present in the Asus phone, yet Microsoft's Lumia 535 allows users to take out the battery in order to switch off the phone in case it freezes. The Lumia 535 has fifty-six percent more battery standby time than the Zenfone 5. The Lumia 535's Quad Core processor allows users to do more tasks without slowing down the phone's performance.