The Zenfone 3 Ultra is the giant model in the new range of smartphones from Asus. With a diagonal of 6.8 inches, its screen is even among the largest on the market, far ahead of a Samsung Galaxy Note 7 or even Huawei Mate 9 It will therefore not be possible to put this Zenfone in the pocket, or even to handle with one hand. Thanks to its reduced screen borders and its great finesse, it can however be held with one hand (in portrait mode only, to consult a website, for example), which is often impossible with a mini tablet 7 inches.
With this disproportionate format, Asus targets only a niche of users but given the extremely reduced number of models of 5.7 inches and more, the Taiwanese manufacturer is likely to hit the target … provided that its mobile be efficient. This is what we will see together!
The Zenfone 3 Ultra has an excellent finish with an aluminum back and contours. Note that the volume button is not on the edge but on the back of the device (a bit like the LG G4)
The right edge has the power button and two SIM card slots, allowing for example a professional line and a personal line in the same device. At the bottom of the smartphone is a USB Type-C port as well as the grilles of the two speakers. The latter deliver an acceptable sound, but one that lacks bass. Note also the presence of a physical home button (at the bottom of the screen) which also acts as a fingerprint reader. It takes a little while to register a fingerprint, but then unlocking the device is very quick
With a large 6.8 inch screen, it’s a real pleasure to enjoy photos and videos without any viewing angle problem thanks to its efficient IPS technology. The definition of the panel is Full HD (1920 x 1080 pixels) for a fairly correct resolution of 324 ppi. Above all, the contrast ratio turns out to be impressive (1688: 1), which compensates for an exceptional brightness (422 cd / m²), but which remains well above average.
Power is at the rendezvous
Asus has perfectly sized its smartphone using components that provide the power necessary for smooth use: an octa-core Snapdragon 652 processor at 1.8 GHz, 4 GB of RAM and 64 GB of internal memory, including 52 available for the ‘user. And if that’s not enough, the device accepts USB Type-C keys and microSD memory cards. Navigation in the interface of Android 6.0 is thus fluid, despite a slightly loaded ZenUI overlay, and the smartphone is swift in 3D game. He obtained a score of 57 images per second in the review carried out with the Epic Citadel application, a result which remains constant, even after 30 minutes of intensive play. On the other hand, the smartphone then turns into a heater and we measured a temperature of 37 degrees at the back. The fineness of the case is surely in question, not facilitating the evacuation of heat. A little unpleasant but nothing very worrying however.
The Zenfone 3 Ultra lasts a very long time in communication
With its 4,600mAh battery, the Asus smartphone lasted almost 30 hours in communication, an excellent score. The endurance is not as spectacular when the screen is on, but remains correct with almost 10 hours in video playback, enough to make three times the trip Paris / Grenoble by TGV, and almost 9 hours in our review of ” versatile autonomy (surfing the web, viewing photos and playing videos). Not exceptional but very honorable!
A quality camera
The Zenfone 3 Ultra has an 8-megapixel photo sensor at the front and, above all, a 23-megapixel camera at the rear. The rear sensor pleasantly surprised us by delivering good quality shots in 5448 x 4096 pixels, even when the ambient light comes down.
The icing on the cake is that the camera is capable of shooting in 4K and the videos are smooth and detailed. Advantages which allow it to serve without problem of camera or camcorder of supplement.