Once again, Asus impressed us with the announcement of the Asus Zenfone 2. It’s the first smartphone with 4GB of RAM and for an affordable price.

Don’t be confused though. There are actually four models of the Zenfone 2! This article focuses on the ZE551ML model where the one with 4GB of RAM belongs.

There are two versions of the Asus Zenfone 2 ZE551ML – one has only 2GB of RAM and the other has 4GB. Again, we are more interested in the 4GB version although the 2GB one is also very interesting.

The Asus Zefone 2 (ZE551ML, 4GB) as we’ll call it, has a 5.5-inch full HD display with Gorilla Glass 3. That means a scratch resistant 1080 x 1920 Pixels or 401ppi panel.

It runs on a 2.3GHz quad core Intel Atom Z3580 processor with PowerVR G6430 as the graphics processor and the 4GB RAM handling muti-tasking and demanding games. Talk about a lag-free experience!

Asus Zenfone 2 (ZE551ML) with 4GB RAM gaming

The Asus Zefone 2 (ZE551ML, 4GB) also features a 13MP camera on the back with the usual PixelMaster technology that enhances low light shots. A 5MP front camera takes care of selfies.

Related: Asus Zenfone 5 Review

It has two micro SIM card slots and supports 4G LTE networks. Of course, usual wireless connectivity features are all supported such as Wi-Fi, Bluetooth 4.0 and even NFC,

You can choose from 16GB, 32GB or 64GB of onboard storage. This is expandable up to 64GB using a microSD card. USB OTG is also supported so you can connect a USB flash drive for more!

Asus Zenfone 2 (ZE551ML) with 4GB RAM Pixelmaster Camera
The Asus Zenfone 2 can take high quality low light photographs!

All Asus Zenfone 2 models aren’t very thin. The 4GB ZE551ML model measures 10.9 mm at its thickest part. Nevertheless, the curved design of the back cover helps in making it very comfortable to hold. It measures 3.9mm only at the sides!

Its battery is a 3,000mAh Lithium-Polymer unit which is not removable by the user. The back cover that protects the battery comes in black, white, red, gray and gold colors.

The volume buttons are placed at the back – just below the camera module. On the other hand, the power button sits at the top of the device. Concentric embellishments are still found on those buttons as well as the chin of the Zenfone 2.

Asus Zenfone 2 dialer

The Asus Zenfone 2 (ZE551ML, 4GB) is now available in several stores throughout the Philippines and online at Lazada with occasional freebies and discounts.

It has an official price ₱14,995.00 and remains one of the most popular smartphones in the Philippines due to its high specs to price ratio. If you’ve already owned a Zenfone 2, share your experiences in the comments below.


  • 5.5-Inch Full HD IPS Display (1080 x 1920 Pixels, 401 ppi)
  • Scratch Resistant Corning Gorilla Glass 3
  • Android 5.0 Lollipop OS with Zen UI
  • Intel Atom Z3580 Chipset
  • 2.3GHz Quad Core 64-bit CPU
  • PowerVR G6430 GPU
  • 4GB of RAM
  • 13.0 Megapixel Autofocus Main Camera with LED Flash
  • 5.0 Megapixel Front Camera
  • 16GB/32GB/64GB Internal Storage
  • Expandable Up to 64GB via MicroSD
  • Dual SIM (Micro + Micro)
  • 4G LTE, 3G HSPA+, 2G EDGE and GPRS Networks
  • Wi-Fi and Wi-Fi Hotspot
  • NFC Support
  • Bluetooth 4.0
  • GPS with A-GPS and GLONASS
  • USB OTG Support
  • 3.5mm Audio Jack
  • E-Compass
  • Gyroscope
  • Accelerometer
  • Proximity Sensor
  • Ambient Light Sensor
  • 3,000mAh Li-Po Battery (Non-removable)
  • 152.5 x 77.2 x 3.9 – 10.9mm @ 170 g
  • ₱14,995.00 Official Price in the Philippines