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Call Quality

Call quality is very good on the Xperia Z3 Compact. Voices in the earpiece are sufficiently loud, and clarity is good, but not perfect - you can recognize the natural tonality of your caller’s voices, but they sound a bit muffled.

On the other end of the line, call quality is excellent. The microphone conveys voices clearly and loudly. There are in fact two microphones on the

Battery life

The Xperia Z3 Compact ships with an extremely large for its size, 2,600mAh battery and an even bigger promise for two-day battery life. Quoted talk time is 14 hours on 3G, with 10 hours of video playback, and 110 hours of continuous music playback.

We have concluded our own testing of the Xperia Z3 Compact, where we run a custom script that replicates a real-life load on the device. Unlike in real life, though, our test has the phone running without interruption. The results are in and they are impressive: the Xperia Z3 Compact scored highest amongst all non-phablet smartphones with a battery result of 10 hours and 2 minutes. This testifies to Sony's promises for two-day battery life, and we're happy to finally be in that territory with our smartphones.

We’re also very happy to see that Sony has added a new Ultra STAMINA mode that blacks out wallpapers and leaves only barebones functionality. This is made to squeeze the most out of your battery, in a manner similar to what Samsung first did with its Ultra Power Saving Mode. Thus with a 40% left of charge, the Z3 Compact in Ultra STAMINA mode claims it can last for more than 4 days.

Here are all the apps that are available when you are in Ultra STAMINA mode: Phone, Contacts, Messaging, Camera, Album, Calendar, Alarm & Clock, Calculator, FM Radio. The browser is sorely missing, but camera is there. It’s all about compromise. Keep in mind that Sony’s implementation is also a bit clunkier than others’ as deactivating ultra stamina mode will actually force-restart your device.

We have also run a test to see how fast the phone recharges. Unfortunately, it seems that the Z3 Compact does not feature any kind of the new QuickCharge technologies that allow a very fast charge-up of the phone. You'd need to wait nearly 3 hours and a half for a full re-charge of the handset's 2,600mAh battery.

We measure battery life by running a custom web-script, designed to replicate the power consumption of typical real-life usage. All devices that go through the test have their displays set at 200-nit brightness.

hours Higher is better
Sony Xperia Z3 Compact
10h 2 min (Excellent)
Sony Xperia Z3
9h 29 min (Good)
Samsung Galaxy S5
7h 38 min (Average)
HTC One mini 2
6h 23 min (Poor)
Apple iPhone 6
5h 22 min (Poor)

minutes Lower is better
Sony Xperia Z3 Compact
Sony Xperia Z3
Samsung Galaxy S5
HTC One mini 2
Apple iPhone 6


The Xperia Z3 Compact takes the successful formula of the Z1 Compact and makes it better in practically every way: the glass panel contributes to a more premium feel, colors are livelier, and the handset is thinner, lighter and water-proof; it keeps the same petite dimensions, but gets a larger, 4.6” screen; the processor is the newer and faster Snapdragon 801; the camera is a good performer; and the battery is a class above most.

The topping on the cake is price: the Z3 Compact launches with a full retail price of Euro 499, nearly 25% cheaper than a flagship. It’s also much cheaper than its main Android rival - the Samsung Galaxy Alpha, which starts at €599. The Galaxy Alpha is similar in terms of features and premium design, but its price swings the scales in Z3 Compact’s favor.

In the land of ‘minis’, the HTC One mini 2 looks like the most viable alternative: it’s got great design as an advantage, and a decent camera, but it’s underpowered in comparison with the Z3 Compact. The Galaxy S5 mini lacks the premium design, but is also a well-rounded ‘mini’. Both alternatives have a much lower price that plays to their advantage, though.

Another phone of a similar size and premium looks is the Apple iPhone 6, but the new iPhone is even more expensive. We, however, consider the iPhone 5s a worthy alternative, too - it’s still more expensive than the Z3 Compact, but it has Apple’s rich ecosystem of apps and games on its side.

You can now read:

Sony Xperia Z3+ Review
Sony Xperia Z5 Review
Sony Xperia Z5 Compact Review


  • Stylish design: tempered glass, captivating translucent sides, lively colors
  • Fast, smooth performance
  • Good camera
  • Water-proof with IP68 rating
  • Very good call quality
  • Excellent digital video stabilization
  • Fantastic battery life


  • Display is not accurate and is noticeably bluish
  • Camera interface is cluttered
  • Speakers sound a bit muffled

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