Samsung Galaxy S4 vs Sony Xperia Z: Design
As you can see from the image above, the Galaxy S4 looks quite similar to the Galaxy S3 in design and therefore pretty different to the Xperia Z. It's a case of rounded pebble-like vs sharp and square so you can take your pick. What might help you decide is that the Galaxy S4 is mostly plastic with a removable cover and the Xperia Z is largely glass and boasts a waterproof and dust proof.
With 5in screens, both are pretty big smartphones. The Galaxy S4 is marginally smaller than the Xperia Z at 69.8 x 136.6mm compared to 71 x 139mm. The two are wafer thin at 7.9mm and since the Galaxy S4 is smaller with a plastic build it's a little lighter - 130g against 145g.
Samsung Galaxy S4 vs Sony Xperia Z: Processor
The Xperia Z has the same impressive 1.5GHz Qualcomm Snapdragon S4 Pro quad-core processor found in the Nexus 4. Samsung has trumped this specs-wise with its Exynos 5 Octa 8-core processor 8-core chip. It has four Cortex-A15 cores clocked at 1.6GHz for performance and four are Cortex-A7s clocked at 1.2GHz for less demanding tasks and power saving. Both have 2GB of RAM.
Going on the specification, we'd expect the Galaxy S4 to beat the Xperia Z in our benchmark tests. We'll let you know as soon as possible. It's important to remember that, aside from benchmarks, these are two highly powerful smartphones.
Update:
Samsung has confirmed that the UK model of the Galaxy S4 will use a 1.9GHz quad-core processor instead of the octa-core chip. This brings it much close to the spec of the Xperia Z.
Samsung Galaxy S4 vs Sony Xperia Z: Storage
Sony has opted to sell just a 16GB model of the Xperia Z but the Samsung Galaxy S4 comes in 16GB, 32GB and 64GB models. Both have a microSD card slot for expansion and although the Xperia Z is supposedly limited to 32GB, it's been widely reported that formatted 64GB cards also work. The Galaxy S4 takes 64GB cards as standard.
Samsung Galaxy S4 vs Sony Xperia Z: Cameras
In terms of specs, cameras are almost the same. Both have a 13Mp rear facing camera with the ability to shoot video in Full HD 1080p quality. The Galaxy S4 and Xperia Z have 2Mp ad 2.2Mp front facing cameras respectively. Like the main shooters, they can record 1080p video.
We can't say which of the two offers better image quality yet but it's bound to be a close call.
Samsung Galaxy S4 vs Sony Xperia Z: Software
Both of these smartphones run Google's Android Jelly Bean but slightly different versions. The Xperia Z is on 4.1.2 while the Galaxy S4 will shop with version 4.2.2. It's a minor difference and the Sony will be updated soon anyway.
The far bigger difference is the user interface overlay which each firm applies to Android. Sony's is closer to vanilla Android but the Galaxy S4 with TouchWiz comes with more exclusive software features. This is an area very much down to personal opinion so we suggest you try out each version of Android to see which you prefer.
Samsung Galaxy S4 vs Sony Xperia Z: Battery
The Sony Xperia Z has a 2330mAh non-removable battery while the Galaxy S4 has a larger, and removable, 2600mAh battery. This doesn't automatically mean that the Samsung offers longer battery life but its higher capacity coupled with the power saving cores of its processor means it is likely. We're looking forward to finding out when we get our Galaxy S4 review sample.
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