Asus Zenfone 2 vs. OnePlus One

The leading Taiwanese multinational computer and hardware manufacturer, Asus is all set to launch its next generation Asus Smartphones in India. The latest offering comes as Asus Zenfone 2, which would be available in three variants in India. However, the one with 4GB of RAM is in the hot talks all around.

The Asus Zenfone 2 (ZE551ML) is a brilliant Dual-SIM Android smartphone with 4GB DDR3 RAM. This smartphone is expected to be launched with a price tag of Rs.19,999 in India. With this price tag, this smartphone would offer a direct rivalry to OnePlus One, which is currently a top-seller in this segment.

Here, we bring you a side-by-side comparison review of Asus Zenfone 2 and OnePlus One to find a better device amongst them.

Asus Zenfone 2 (ZE551ML) vs OnePlus One



The Asus Zenfone 2 sports a 5.5-inch Full HD (1080 x 1920) IPS LCD multi-touch display, which is protected by strong Corning Gorilla Glass 3. The big 5.5-inch display produces crisp and sharp colors at a brilliant rate of 403 pixels per inch, which is really great while watching Full HD videos or playing high-end games on this device.

On the other hand, the OnePlus One also sports a similar 5.5-inch LCD display, producing Full HD resolution of 1080 x 1920 pixels at 401ppi pixel density. This display is also protected by Corning Gorilla Glass 3.

While comparing, we found that there is hardly any difference between the size, color production and overall performance of the display, added on these two smartphone devices. And hence, the first segment ends in a tie.

Processor & RAM

The Asus Zenfone smartphone series has always been powered by an Intel chipset. And hence, the Zenfone 2 follows the same pattern. This latest addition in the Zenfone family is powered by a 64-bit Intel Atom Z3580 chipset, with 2.3GHz quad-core processor. The USP of this smartphone is its big 4GB DDR3 RAM, which takes multi-tasking onto a very high level. It gets PowerVR G6430 GPU. This hardware configuration can easily run almost each and every application and game without any issue.

The OnePlus One is powered by Qualcomm MSM8974AC Snapdragon 801 chipset, 2.5-GHz Krait 400 Quad-Core processor coupled with 3GB RAM and Adreno 330 GPU. The OnePlus One can also run most of the Android applications and games, available on the Google Play Store.

However, the Asus Zenfone 2 with 4GB of RAM steps ahead in this segment.


Operating System

The Asus Zenfone 2 runs on the Google’s latest Android 5.0 Lollipop OS with Asus ZenUI on its top. On the other side, the OnePlus One runs on the previous Android 4.4.2 KitKat OS, upgradeable to Android 4.4.4 with CyanogenMod 12 on top of it after the update.


There is a tie in this segment. Both Asus Zenfone 2 and OnePlus One sport a 13 Megapixels (4128 x 3096) autofocus rear camera, added with features like dual-LED flash, Geo-tagging, HDR, Panorama, touch-focus and face/smile detection. And for your selfies, both of them get a 5 Megapixels front-facing camera, which can also record 1080p HD videos.


The Asus Zenfone 2 gets 64GB of on-board storage capacity, which can be further increased up to 64GB with a MicroSD card. While, the OnePlus One comes in two variants; 16GB & 64GB on-board memory, which is not expandable. And hence, the Asus Zenfone 2 leads in this segment.

Connectivity Features

The Asus Zenfone 2 is a Dual-SIM Android Smartphone. The OnePlus One is a single SIM Android smartphone device. Other connectivity features on them include-

  • 4G LTE, 3G HSPA, GPRS with EDGE
  • NFC, Wi-Fi, Wi-Fi Direct, DLNA, Wi-Fi Hotspot
  • Bluetooth 4.1 with A2DP, EDR
  • USB Host, MicroUSB 2.0, 3.5mm Audio Jack


The Asus Zenfone 2 is fuelled by a non-removable 3000mAH Li-PO battery. While, the OnePlus One is powered by a slightly more powerful non-removable 3100mAH Li-PO battery.

Price in India

Asus Zenfone 2 Expected Price in India – Rs.19,999

OnePlus One (64GB) Price in India – Rs.21,999


In the end, we have found that Asus Zenfone 2 is better than the OnePlus One in terms of better RAM, latest Android 5.0 OS, expandable memory, Dual-SIM support and comparatively cheaper price tag. Also, in terms of looks, the Asus Zenfone 2 is more attractive and boasts a metallic body, which gives it a high-end luxurious touch.

However, the OnePlus One is also a brilliant smartphone device, which can offer your high-end multi-tasking capabilities. Both of them are value for money smartphone package. Though, the Asus Zenfone 2 remains the clean winner of this comparative review.

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