Asus Zenfone 3 [Review]

After three weeks of using the Asus Zenfone 3, I am back with the full review. I am by no means a techno geek and I am contented with a phone suited to my usage needs, of which battery life and camera are my utmost priorities.




I was surprised when I held up the slim (6.16mm) phone as it was light (155g) despite its dual metal and glass body. Oh, and it looked elegant and felt good in my hands. Owing to the smooth body, the Zenfone 3 has a slight slippery touch and requires a firmer grip, especially for taking photos. I really liked the sharp screen display that shows high details and contrast and its prompt response upon touch, no freezing problem faced at all!

ZEN UI Interface

The Zenfone comes with Zen UI interface that could be a two edged sword as it has almost everything one needs without sourcing for third party app such as MiniMovie (a video editor) but I realized it’s a little lag at times which is still bearable.

Good that it comes with real-time animated weather and clock widgets to keep track of the time and weather conditions. At the same time, the pre-installation of Asus apps and Third-party apps might not be a necessity to all and I personally don’t use these apps so it is kind of redundant to me.

Dual SIM slots

The Zenfone 3 is really easy to carry around and most ideal for travelling far as it boasts dual SIM slots where you can actually use both a local and overseas sim within a single phone. You can do away with the hassle of carrying two phones or switching sim cards.



One of the main feature that I look out for in a phone, being a food photography enthusiast. The 16-megapixel rear camera which is a breath-taking wonder (sounds familiar?) at focusing and capturing under natural light with vivid colour tones and contrast. I think it is a good light substitute for my DSLR on days where I am lazy to bring the camera out.

The photos under dim light is slightly compromised but still faring better than my Sony C5 Ultra which gives grainy photos. What I love most is its auto colour correction under yellow light where it saves me the trouble of adjusting white balance on photo editing applications. The OIS (optical image stabilizer) helps to reduce blurry photos, which helps a lot when I want a perfect sharp flat lay.

A series of pictures taken with the phone below:


Breakfast- chee cheong fun taken under natural light


Fish Soup taken indoor of coffeeshop


Dinner Thai food galore taken under yellow lightings


Dinner ZiChar taken under dim lightings

And not just limited to food, a sharp shot of the cafe surroundings as well.

Its front camera, at only 8-megapixel camera certainly doesn’t match up to the best ones out in the market. But since I am not a selfie addict, I am not too concerned over it. If you are a selfie addict, do take into consideration of this ya!


It boast a non-removable 3,000mAh battery lasted could me a day and a half if I did not go on a pokemon-hunting frenzy.

On days where I do so, the battery is able to sustain for about 5 hours of non-stop playing, which is pretty impressive as my Sony C5 Ultra could only sustain no longer than 3 hours.


It is generally a phone with good standby time even when the phone functioned as a tethering hotspot. (Yes, for the sake of Pokémon-hunting)

In addition, I was very pleased with the battery performance, which gradually drain till 0%, unlike the Sony C5 Ultra I was previously using that suddenly deplete from 15% to 0%.

The phone charges by the USB Type-C charging cable. It brought a little inconvenience for me as I could not charge it with many typical micro USB cables that I own. Self-reminder: to buy more Type C cables to prevent the event where I forget to bring back the charging cable from office.

Comparison to Sony C5 Ultra


My experience with the Sony C5 Ultra has been disappointing as the screen is not very sensitive and responsive to touches. This gets irritating when I couldn’t send out my WhatsApp messages and punch in my entertainer code when redeeming 1 for 1 offers at payment.

Sony C5 Ultra is larger than average phone, leaning towards more of a tablet- precisely the reason why I got it for so I could view my drama on a larger surface platform. As I have big hands, I find it alright to manoeuvre it with only a hand but it fits uncomfortably in the jeans, owing to its size.

The best part of the Sony C5 Ultra other than its ultra-wide screen is its 13 megapixel rear and front camera. Ironically, I am not a selfie addict but my friends have taken selfies and raved about its clarity and sharpness of the front camera.

The rear camera takes decent pictures with a slight bluish tint that could be easily corrected for. However, one thing I don’t like about it is the pre-installed shooting modes such as ‘gourmet’; ‘redlight’, ‘night’ that makes the shutter lag. It could take about a second or more for it to focus on the object.

After using the phone to play Pokemon Go for about 10 minutes, the right side of the phone began to heat up to the point that it was uncomfortable to hold. So I was really thankful that Asus Zenfone 3 been functioning good thus far.

A brief comparison of the specifications of the ASUS Zenfone 3 to Sony C5 Ultra (the previous phone I was using)

Category Zenfone 3 Sony C5 Ultra
Main Camera 16MP, f/2.0 13MP, f/2.0
Front Camera 8MP 13MP
Fingerprint sensor Rear sensor, 5-finger registration NA
USB USB Type C Micro-USB
OS Android 6.0 Marshmellow Android 5.0 Lollipop
Battery 3,000mAh, non-removable 2,930mAh, non-removable

For more information and prices of the ASUS Zenfone 3, do check out ASUS Facebook / Instagram / Website

This post is brought to you by Asus Mobile Singapore.

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