Aligator S4020 Duo

The Aligator S4020 Duo is a budget-friendly mobile device that runs on the Android 4.2 Jelly Bean operating system. It is powered by a MediaTek MT6572 processor with a clock speed of 1.20 GHz and features two cores. The GPU is an ARM Mali-400 MP1 running at 500 MHz. The device comes with 256 MB of RAM and 512 MB of internal memory, which can be expanded using microSD, microSDHC, or microSDXC cards (up to 64 GB).

The Aligator S4020 Duo has a 4-inch color TFT display with a resolution of 480 x 800 pixels and a pixel density of 233 ppi. It has a screen-to-body ratio of 56.9% and comes with display protection. The device supports NFC, Bluetooth, GPS, GPRS, EDGE, WiFi, DLNA, and IrDA connectivity. It also has a USB port and supports WAP 2.0.

The main camera on the Aligator S4020 Duo is 2 MP with LED flash and autofocus. It can capture images at a resolution of 1600 x 1200 pixels and record videos in formats such as H.263, H.264, and MPEG4. The selfie camera is 0.3 MP with a flash and digital zoom capabilities. The device also features a radio.

In terms of dimensions, the Aligator S4020 Duo measures 125.00 x 64.00 x 10.80 mm and weighs 110.00 g. It is powered by a 1350 mAh Li-Ion battery with quick and wireless charging capabilities. The device also includes sensors such as accelerometer, altimeter, barometer, fingerprint scanner, gravity sensor, gyroscope, hall-effect sensor, hygrometer, iris scanner, magnetometer, proximity sensor, and thermometer.

Pros:
- Affordable price
- Expandable storage
- NFC support
- Quick and wireless battery charging
- Wide range of sensors

Cons:
- Low RAM and internal memory
- Low-resolution cameras
- Outdated operating system
- Limited display quality