ASUS Zenfone 2 in the Test: Inexpensive XXL Smartphone

Test conclusion: what you should know

The zenfone2 comes in a plastic housing what purports to be metal. The Android Smartphone offers good facilities with full run time and high speed. The operating system is not up to date and weakens the camera in poor lighting conditions. Competition squeezes a 5.5-inch display in a compact housing. Best price on the Internet: 229,99 Euro * this product at Amazon order Pro high speed faster browser good endurance memory card slot against weak photo quality battery firmly installed Testrating editorial 2.61 satisfying user rating now evaluate the Zenfone 2 not surprisingly has a predecessor and there are even rumors as the successor of Zenfone 3, end of February presented already to the Mobile World Congress. Given the facilities, the Zenfone 2 is fair priced. Looking for good sites, because there is also a weaker-of-the-art model (ZE500CL) with less memory and a worse display. Clarifies the test, what does the Zenfone 2 (ZE551ML) and where weaknesses are lurking.

5.5 inch display

The screen has a diagonal of 5.5 inches (13.91 centimeters) and resolves with 1920 x 1080 pixels. This leads to a high pixel density of around 400 ppi. Whether at the games, watching video or reading of sharpness is lacking the Zenfone 2 does not. When exposed to sunlight, you want more brightness. The laboratory measured mittelprächtige 422 cd / m ². The colors of the display look natural, perspective is noticeably better than at some cheap Smartphones that viewed from the draft be Milky. The macgregor contrast 466:1 is due to a poor black level.


With an overall height of 10.9 mm, the Zenfone 2 on the paper is a chunky fellow. With 170 grams, it is actually not a lightweight. Because of the arched back and the narrow edge it although surely lies in the hand but kippelig on the table. The shape is reminiscent of current Motorola phones and the narrow framework ensures that you’d think you would have a slim device in his hand. The back is rather dull, structured and mimics brushed metal. This works also very well, however the material is deceptively warm, especially after the games or a benchmark. When you are ready to leave, a finger nail remove the back. Come while the two SIM slots and the memory card slot, but the battery is not Exchange even though it is to see.

Good endurance

The battery has a capacity of stately 3,000 mah. With heavy use, she held less than 12 hours in the Our site use mix. At low usage, it’s been 36 hours. A good performance, that something about it across consoles that the battery is firmly fitted and is not inductive (wireless) bootable. 76 tested devices, the Zenfone 2 in the Endurance Championship lands, after all, ranked 25th. With the 18 Watt fast charging adapter Asus promises to recharge in 39 minutes to 60 per cent.

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Speed and operation

What is the rule for pcs and notebooks, smartphones is the exception: an Intel processor (Intel Atom Z3580) with four cores and up to 2.33 ghz, 2 for pace provides in the Zenfone. With 4 gigabytes (GB) of memory, the Zenfone is almost wasteful well stocked a rarity among smartphones, especially in this price range. ASUS user interface scores with smooth animations and fast response to input. In benchmarks, the Intel fired Zenfone 2 makes but no tricks against a galaxy of S6. Samsung’s Achtkerner 60 percent calculated regardless of whether single or multi core in the Geekbench 3, more points. Also in the download duel the Zenfone had to admit defeat. In the same Wi-Fi, the Galaxy invited the racing game asphalt 8 Airbone noticeably faster on the memory chip. After all, the game also on the Zenfone was liquid. Despite the partial defeat of the more expensive S6, the operation is simple and also the working speed is high. In this chapter, there is equal with the Huawei G8.


The memory not only is lush with 4 GB, because the Zenfone 2 there with 128 GB device memory. However, this variant is rather an exotic. The 16, 32 and 64 GB versions are more common and more affordable. The operating system is just under 7 GB. There are still 105 GB cloud storage. Whenever you upgrade via memory card. The test device swallowed cards with 128 GB. Shortcoming: Android under 5 are not all apps on the card move.

Keyboard layout

It is commendable, if a manufacturer is considering something of their own and not simply imitating everything. However, there are things that are difficult to improve. This includes the arrangement of the power button, usually right or left on the edge of positioned, sometimes also centered on the back, as with LG. ASUS opted for some unknown reason for the top. Which leads to the 5.5-inch Zenfone 2, that you always need access to, to change the display on / off switch. Annoying. The volume rocker sits on the back takes getting used to. Rather classic the three sensor buttons on the front appear however, that lie beneath the display. On the day you are easy to spot in the dark you must meet her blind, because there is no lighting. This is probably only on day one after buying one hurdle.


The main camera has a resolution of 13 megapixels. With a touch of 3.23, the Zenfone is one of the weakest quarter of the previously tested smartphones. Since little comfort the many additional features. The testers complained annoying pixel-image noise, little details and edges inaccuracies. The errors grow dramatically with increasing darkness. For ordinary lighting, but useful snapshots are possible. See a sample picture as a link under this test. The Zenfone in full HD videos, the quality is satisfactory. The front camera has a resolution of 5 megapixels and the judgment received sufficient (Note: 3.74). Others can do better, but there were already a few dozen phones that fared worse.

Video on the subject

Asus has in Las Vegas in addition to the transformer book Chi new smartphones in the luggage: the Zenfone 2 and the Zenfone zoom with advanced camera. ASUS: Zenfone 2 and the world’s thinnest Windows Tablet

Radio and receiving

A positive chapter for ASUS: not only that the Zenfone 2 picks up two SIM cards (dual SIM), also the measured values and the facilities are conciliatory. In Wi-Fi mobile also in the 5-ghz band radio and the n- and the ac standard. In the UMTS network, the transmission and reception performance is satisfactory and good in the LTE network.

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