Only a few years ago, phones with 5.5-inch screens were considered oversized, and it was often a topic of discussion if you had a large phone. Today, this size has become the norm because of increased media consumption on smartphones. The Lenovo Zuk Z1 goes with this tried and tested size, although the phone does definitely feel a bit bulky.
The reasons for the bulk are a metal frame and a 4100mAh battery, which contribute to the phone's 175g weight. Although it does not have a unibody casing and the back is plastic, the battery is not user-accessible. The dual-SIM tray is on the left side, within the frame. The phone does not support expandable storage, so there is no slot for a microSD card.
The bottom has the microphone, speaker, and USB Type-C port for charging and data transfers. Also included in the box are a 13W power adapter and a USB 3.0 cable with a Type-A plug at one end and Type-C at the other. The right side of the phone has the power and volume buttons, while the top has the 3.5mm socket. The screen occupies nearly 70 percent of the front of the phone, while the camera, earpiece and proximity sensor sit above it. At the bottom is the physical home button with its integrated fingerprint sensor, and capacitive Android navigation keys.*
The screen of the Lenovo Zuk Z1 sports a resolution of 1080x1920, with a density of 401ppi. It's a decent screen, and is sharp enough to serve most of your requirements. Brightness isn't quite as great as we'd have expected from an IPS-LCD screen, and even at its brightest it doesn't quite seem as bright as it should be. However, a polarising coating on the screen does help with legibility under bright sunlight, so it doesn't need to be too bright. It is best to control brightness manually, as the adaptive brightness mode usually makes it too dull. Black levels are decent as well, as is the contrast ratio which ensures a fairly accurate representation of colours through the spectrum.
SOFTWARE: 9/10
The phone runs on Cyanogen OS 12.1, which is based on Android 5.1.1. Although there has been talk of a planned upgrade to Cyanogen OS 13 based on Android 6.0, this update isn't available through the phone's OTA software update system yet. While Cyanogen OS isn't quite as tweakable as the geek-inspired CyanogenMod, it offers a decent blend of customisability and stability.
In most ways, Cyanogen OS functions just like stock Android, and you can even change the theme to have it look like that. The system's trademark is its high degree of customisability, and we see a lot of this in Lenovo Zuk Z1. The home screens and app drawer can be changed to different layouts, the grid sizes, scroll effects and icon labels can be changed and toggled, and there's much more to play with. You get a fair amount of control over how the user interface looks at its most basic level.
PERFORMANCE: 7/10
And with minimum bloat comes smooth performance. While the Snapdragon 801 did not perform well on the OnePlus X, it did a great job on board the ZUK Z1. The animations are smooth and the processor kept up with the demands of the software, which even with Lollipop on board did a fine job. ZUK put up a post on the company’s website stating that they are working on an Android Marshmallow ROM as well so when it’s out, things will only get better.
BATTERY:
While the Lenovo ZUK Z1 packs in a 4100mAh battery and the scores that we got using our standard PC Mark Work Battery test did impress. Once you consider that this handset packs in a 5.5-inch Full HD display and is powered by a processor that a couple of generations old (28nm fabrication process) it really makes one wonder what ZUK did to accomplish such figures.
CAMERA: 7/10
The Lenovo Zuk Z1 has a 13-megapixel primary camera built on Sony's IMX 214 sensor, and also features optical image stabilisation and a dual-LED flash. The front camera sports an 8-megapixel sensor, and both cameras can record video at up to 1080p, with the rear camera also featuring 60fps video recording.
FULL SPECIFICATIONS:
| BODY | Dimensions | 155.7 x 77.3 x 8.9 mm (6.13 x 3.04 x 0.35 in) |
|---|
| Weight | 175 g (6.17 oz) |
| SIM | Dual SIM (Nano-SIM, dual stand-by) |
| DISPLAY | Type | IPS LCD capacitive touchscreen, 16M colors |
|---|
| Size | 5.5 inches (~69.3% screen-to-body ratio) |
| Resolution | 1080 x 1920 pixels (~401 ppi pixel density) |
| Multitouch | Yes |
| - CyanogenMod 12.1 |
| PLATFORM | OS | Android OS, v5.1.1 (Lollipop), planned upgrade to v6.0 (Marshmallow) |
|---|
| Chipset | Qualcomm MSM8974AC Snapdragon 801 |
| CPU | Quad-core 2.5 GHz Krait 400 |
| GPU | Adreno 330 |
| CAMERA | Primary | 13 MP, f/2.2, autofocus, OIS, dual-LED flash, check quality |
|---|
| Features | 1.12 µm pixel size, geo-tagging, touch focus, face detection, panorama |
| Video | 1080p@30fps, 1080p@60fps, check quality |
| Secondary | 8 MP, f/2.2, 1080p@30fps |
| COMMS | WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot |
|---|
| Bluetooth | v4.1 |
| GPS | Yes, with A-GPS, GLONASS |
| Radio | No |
| USB | v3.0, Type-C reversible connector |
| FEATURES | Sensors | Fingerprint, accelerometer, gyro, proximity, compass |
|---|
| Messaging | SMS(threaded view), MMS, Email, Push Mail, IM |
| Browser | HTML5 |
| Java | No |
| - Fast battery charging
- MP4/H.264 player
- MP3/WAV/eAAC+/Flac player
- Photo/video editor
- Document viewer |
| BATTERY | | Non-removable Li-Po 4100 mAh battery |
|---|
| Stand-by | Up to 526 h (3G) |
| Talk time | Up to 38 h (3G) |
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