The ZenFone 6 is equipped with 8 GB, 16 GB or 32 GB of internal memory, depending upon the version, external memory of up to 64 GB, and 2 GB of RAM. The ZenFone 6 features a 2 GHz dual-core Intel Atom Z2580 processor, a 13 megapixel rear camera and 2 megapixel front-facing camera. The ZenFone 6 features a 6-inch 1280×720 IPS display. However, some of the earlier productions and certain variants of this phone came with 1 GB of RAM. This phone comes with 2 GB of RAM in comparison to other models and features at a competitive price. This Zenfone features either a dual-core hyper-threaded (dubbed Multicore) Intel Atom or a quad-core Qualcomm Snapdragon processor, an 8 MP rear and 2 MP front camera. The ZenFone 5 is the mid range of the series and includes a 5-inch 1280×720 HD IPS display protected with Corning Gorilla Glass 3. The phone carries an 8 MP rear camera, and uses the same 0.3MP front camera as the ZenFone 4 does. Using the same processor as the ZenFone 4 and having 8GB of internal storage, 1GB of RAM and a MicroSD Card Slot supporting up to 64GB Storage, it does have a better rear camera than the ZenFone 4. The ZenFone 4.5 is the 4.5-inch WVGA (854×480) TFT display model. However, ZenFone 4 does not have an LED flash unlike the rest of the models in the ZenFone series.

The ZenFone 4 features a 1.2 GHz dual-core Intel Atom Z2520 saltwell processor, a 5 MP rear & 0.3 MP front camera and 1 GB RAM. The ZenFone 4 is the 4-inch WVGA (800×480) TFT display model.

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