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Review: Sony Xperia Z3 Dual smartphone


The aspect that stands out most in the Xperia Z3compared to other top-of-the-line handsets available in the market is the battery life. Even when used intensively – with WiFi on, playing videos and games – the device allows you to spend almost two days without recharging.

If you see yourself with a low battery, you can use the new Ultra Stamina Mode, which reduces the device to its most basic functions. This restriction ensures a long time of use, offering the possibility of making emergency calls until the moment you find a socket.

Xperia Z3 Dual

In a stress test conducted by our team, we were able to fully deplete the Xperia Z3’s load (starting from the 100{890c36218bbc94bcbe8f5d159f212155cbf0c932418a12ec06828c4a996999c1} battery mark) in just over 10 hours running a 720p resolution video hosted on YouTube over a WiFi connection – plus In addition, the screen brightness of the gadget was at its medium level. All this, of course, with the power saving modes disabled.

It is worth noting that this amount of time, while impressive, is not necessarily representative of the actual battery life in a conventional use case. Using your smartphone to make calls, access web pages, talk to instant messengers, and play games, there was no drastic reduction in charge or need to charge the device as a matter of urgency due to some strange behavior.

What is more surprising in the situation is the fact that the battery of the Xperia Z3 has suffered a reduction in its maximum load in relation to the Xperia Z2 . While the new smartphone has 3,100 mAh, its predecessor has a capacity of 3,200 mAh – which proves that this time the manufacturer focused more on software improvements than on hardware enhancements.


Available in models with 16 GB or 32 GB of internal memory, the Xperia Z3 offers enough space for you to store a decent amount of applications and files. The basic version – used as a parameter for this analysis – has 11 GB that can be used freely from the moment the product is removed from its packaging.

The size may be considered reasonable, but it might be a good idea to bet on buying a micro SD card for the smartphone – accessories with a capacity of up to 128 GB are supported. This will prove especiallynecessary for those who want to use the 4K resolution recording feature, which often quickly fills the memory available on the smartphone .

A recording of the type lasting approximately 5 minutes occupies 1.98 GB in your smartphone’s memory . With this, investing in an accessory that expands storage space is essential if you do not want to be managing files to free up space at a steady pace.


The only clearly inferior aspect of the Xperia Z3 in relation to its previous model is its sound capacity. In an attempt to make the new device more compact, Sony has opted for front-side outputs with a smaller size and reduced power.

Although the device is still capable of playing quality audio without the aid of headphones, the experience is not as pleasurable as in the past. So whoever wants to listen to music of good quality will probably be forced to invest in such an accessory.

As with the national version of the Xperia Z2 , the Xperia Z3 Dual comes with a simple, high-quality headset that can be considered the top medium. Although Sony makes the MDR-NC31EM noise-canceling model available in the country, it can only be purchased separately from the smartphone .