Digma CITI Z400 3G

The Digma CITI Z400 3G mobile is a budget-friendly smartphone with basic features that cater to users who are looking for a simple and functional device. With an operating system of Android 6.0, this phone offers a user-friendly interface and access to a wide range of apps on the Google Play Store.

Powered by a Spreadtrum SC7731 processor with four cores running at 1300 MHz, the Digma CITI Z400 3G can handle everyday tasks with ease. It comes with 512 MB of RAM and 4 GB of internal storage, which can be expanded up to 128 GB via a memory card slot. The Mali-400 MP2 GPU ensures smooth graphics performance for casual gaming and multimedia playback.

The 4-inch colored touchscreen display has a resolution of 800x480 pixels, providing decent clarity for viewing content. The phone supports multitouch and has a capacitive sensor for accurate touch responses. It also features a 2 MP rear camera with LED flash for capturing moments on the go, as well as a 0.3 MP front camera for selfies and video calls.

In terms of connectivity, the Digma CITI Z400 3G supports GSM 900/1800/1900 bands and 3G networks. It has Wi-Fi 802.11n, Bluetooth 2.1, and USB interfaces for connecting to other devices. The phone has a dual SIM card slot for added convenience.

Pros:
- Affordable price
- Expandable storage up to 128 GB
- Dual SIM functionality
- Decent battery capacity of 1300 mAh
- Flashlight feature for emergencies

Cons:
- Limited RAM and internal storage
- Low-resolution cameras
- Outdated Android 6.0 operating system
- Basic design and build quality
- Limited connectivity options compared to modern smartphones