Acer Liquid Z4

The Acer Liquid Z4 is a budget-friendly smartphone that was released in February 2014. It runs on the Android 4.2.2 Jelly Bean operating system and is powered by a dual-core 1.3 GHz Cortex-A7 processor, along with a Mediatek MT6572 chipset and Mali-400 GPU. The device comes with 4 GB of internal memory and 512 MB of RAM, which can be expanded via a microSD card slot.

The Liquid Z4 features a compact 4-inch TFT display with a resolution of 480 x 800 pixels, offering a pixel density of 233 PPI. It has a screen-to-body ratio of 57.4% and a display aspect ratio of 5:3. The phone supports 2G GSM and HSPA networks, as well as Wi-Fi connectivity and Bluetooth 4.0.

In terms of cameras, the Liquid Z4 sports a 5 MP main camera with LED flash and autofocus, capable of recording 720p videos at 30fps. There is also a 1.3 MP front-facing camera for selfies. The device lacks GPS and radio functionality but includes sensors such as accelerometer and proximity sensor.

The Acer Liquid Z4 is available in black or white color options and has dimensions of 124 x 64 x 9.7 mm, weighing 122 g. It is equipped with a removable 1630 mAh Li-Ion battery.

Pros:
- Affordable price point
- Compact and lightweight design
- Expandable storage via microSD card slot
- Decent camera quality for its price range

Cons:
- Limited internal storage and RAM
- Outdated operating system version
- Low-resolution display
- Lack of GPS and radio functionality