1. CPU speed 2 x 1.4GHz (Apple A8) 4 x 2.5GHz (Qualcomm Snapdragon 801 MSM8974AC v3) The CPU speed indicates how many processing cycles per second can be executed by a CPU, considering all of its cores (processing units). It is calculated by adding the clock rates of each core or, in the case of multi-core processors employing different microarchitectures, of each group of cores.

2. RAM 1GB 3GB Random-access memory (RAM) is a form of volatile memory used to store working data and machine code currently in use. It is a quick-access, temporary virtual storage that can be read and changed in any order, thus enabling fast data processing.

3. has an external memory slot Apple iPhone 6 Oppo Find 7 The device has a standard memory slot (such as an SD or micro SD card slot) that enables you to extend the built-in internal storage with affordable memory modules, or easily retrieve data, such as photographs, from the memory card.

4. internal storage 128GB 32GB The internal storage refers to the built-in storage space available in a device for system data, apps, and user-generated data. With a large amount of internal storage, you can save more files and apps on your device.

5. Has integrated LTE Apple iPhone 6 ( Apple A8 Oppo Find 7 ( Qualcomm Snapdragon 801 MSM8974AC v3 The system on a chip (SoC) has an integrated LTE cellular chip. LTE is capable of downloading at faster speeds than older, 3G technology.