Sigma Mobile X-treme PQ54

The Sigma Mobile X-treme PQ54 is a rugged smartphone that is designed to withstand tough conditions and provide reliable performance. Running on the Android 6.0 Marshmallow operating system, this device is powered by an ARM Cortex-A53 processor with four cores clocked at 1500 MHz, along with a PowerVR GE8100 GPU for smooth graphics performance. It comes with 3 GB of RAM and 32 GB of internal storage, which can be expanded further via a microSD card slot.

The 5.7-inch IPS display offers a resolution of 720 x 1440 pixels, providing sharp and vibrant visuals with a pixel density of 282 ppi. The screen is protected by Corning Gorilla Glass 3 and supports multi-touch gestures. The X-treme PQ54 also features a 12.98 MP main camera with LED flash, as well as a 4.92 MP selfie camera for capturing photos and videos.

Connectivity options include 4G network support, Wi-Fi, GPS, and USB Type-C for fast data transfer. The device is equipped with a 6500 mAh battery for long-lasting usage, and it also includes sensors like proximity, light, accelerometer, magnetometer, and fingerprint for added functionality.

Pros:
- Rugged design for durability in harsh environments
- Large 6500 mAh battery for extended usage
- Expandable storage via microSD card slot
- Fingerprint sensor for added security
- Sharp and vibrant display with Gorilla Glass protection

Cons:
- Operating system is outdated (Android 6.0 Marshmallow)
- Limited internal storage capacity
- Older processor and GPU may not offer the best performance for gaming and intensive tasks