The Apple iPhone 6 simply ceases to get outdated. The four variants of this iPhone are still popular and sold by many e-commerce websites on a first-hand and second-hand (or used) basis. The good thing is that there is no harm in buying a phone with old specifications in the ever-advancing market of today. iPhones look classy and old is gold. The four models of the iPhone 6 are the iPhone 6, the iPhone 6S, the iPhone 6 Plus, and the iPhone 6S Plus.

Size and weight
While phones generally get thinner with advancements and time, this is not the case with the iPhone 6S and the iPhone 6S Plus. Although the height and width of the iPhone 6S and the iPhone 6S Plus is the same as the Apple iPhone 6 and the iPhone 6 Plus, they are about 3 percent thicker than their 2014 predecessors. While it is nothing to worry about, the iPhone 6S is 11 percent heavier than the iPhone 6 and the iPhone 6S Plus is 12 percent heavier than the iPhone 6 Plus.

Aren’t phones supposed to get lighter and more compact with the addition of new features and advancement? Not the case with the variants of the Apple iPhone 6. The newer models are available in all four colors originally released, but you might have trouble finding the iPhone 6 and the iPhone 6 Plus in gold or rose gold.

Display and other features
The Plus models have a 5.5-inch display screen with a 1920 x 1080 440 PPI resolution and 2GB RAM while the iPhone 6S and 6 have a 4.7-inch display screen with a 1334 x 750 326 PPI resolution and 1GB RAM. This feature could be a point at which you can make your decision and choose a phone to buy. Other smartphones started using Quad HD displays by the time the latest Apple iPhone 6 model was released, while Apple continued to implement 326 ppi and 440 ppi with IPS panels.

All the variants of the Apple iPhone 6 have Touch ID fingerprint scanners but only the iPhone 6S and the iPhone 6S Plus have an extra display layer that enables the incorporation of the 3d touch feature. The iPhone 6S Plus has the most powerful battery followed by the iPhone 6 Plus. The least powerful battery is of the iPhone 6S.

Camera
The newer iPhones have a superior camera with a 12 megapixel back camera and a 5 megapixel back camera while the older iPhone 6 and iPhone 6 Plus have a 8 megapixel back camera and a 1.2 megapixel front camera. This is of huge significance as Apple iPhone 6 enthusiasts can opt for a device with a superior camera.

Whatever the case may be, whether you want a phone with a larger build and higher processing speed, or a lighter phone, or a phone with a better camera, each model of the iPhone 6 is special and is worth considering. Do your research and then make a decision.