Sony Xperia Z5 Premium Advantages and Disadvantages

Advantages of Sony Xperia Z5 premium

Battery life is good at 66 hours of endurance rating, but not class-leading. The video playback battery test is disappointing, but admittedly, the Video app (or any other video player) run in native 4K resolution.
Based on Android 5 Lollipop, the Xperia launcher runs quite nicely on the Z5 Premium and is packed with several interesting features. The phone is definitely not lacking on the software side The Marshmallow update should be around the corner too.
Performance-wise, the Xperia Z5 Premium is a true powerhouse, equipped with Qualcomm's top-of-the-line Snapdragon 810 SoC. GPU performance is top-notch. The phone tends to get quite hot on the back and sometimes it takes measures (such as forcing lower brightness) in order to avoid overheating.

Sony Xperia Z5 Premium Advantages and Disadvantages
The speaker setup on the Z5 Premium scored Below Average in terms of loudness, but this is actually ok for a device with stereo speakers. Still, we would have appreciated a bit more boom.
Audio output quality is quite good, though not class-leading.
The Xperia Z5 Premium has superb build-quality and stunning design, especially the chrome flavor. The exposed microUSB port is a lot more convenient than Sony's previous covered solution, but the volume keys are somewhat oddly positioned.
The class-leading display offers 4K resolution and unbelievable 806 ppi density. Maximum brightness is around the Z5 but it's nowhere near as bright as what the Z3+. Contrast also turned average, despite the nice deep blacks. The same goes for color accuracy, which is not up there with the best.
The side-mounted fingerprint reader is really convenient, fast and reliable.
The camera setup on the Z5 Premium offers accurate colors and good dynamic range, but sadly samples were still plagued by corner softness and a lot of digital noise, even in the shadows of the bright day. Sony has definitely made some improvements with the new multi-aspect sensor. The electronic video stabilization at 1080p has come a long way and is better than before thanks to some new hardware and software but it doesn't work in 4K recording.

Disadvantages of Sony Xperia Z5 Premium

Waterproofing comes with a disclaimer
4K available only for multimedia content
Non-removable battery, no wireless charging out of the box
No IR port for remote control of consumer electronics

Main Features

23 MP camera with 2160p@30fps video recording; 5.1 MP front-facing camera with 1080p@30fps video
32GB of built-in storage and a microSD card slot
LTE Cat.4 (150Mbps)/Cat.6 (300Mbps), region dependent; Dual-band Wi-Fi a/b/g/n/ac;
A-GPS/GLONASS receiver, Bluetooth v4.1, FM radio with RDS
Active noise cancellation with a dedicated mic
3,430mAh non-removable battery
IP68 certified - dust and water proof up to 1.5 meter and 30 minutes
Fingerprint sensor
5.5" UHD (3840 x 2160px) IPS LCD display with 806ppi (4K in layman's terms), X Reality for Mobile, Triluminos technology and Dynamic Contrast Enhancer; scratch-resistant glass, oleophobic coating
Android OS v5.1.1 Lollipop with Xperia launcher
Octa-core Qualcomm MSM8994 Snapdragon 810, feat. a quad-core 1.5 GHz Cortex-A53 and quad-core 2 GHz Cortex-A57 and an Adreno 430 GPU and 3GB RAM