Coolpad Cool Changer S1

The Coolpad Cool Changer S1 is a high-end Android smartphone that offers impressive specifications and features. Running on the Android 6.0.1 Marshmallow operating system with EUI 5.8 interface, this device is powered by a Qualcomm Snapdragon 821 8996 processor clocked at 2.35 GHz with 4 cores and Adreno 530 GPU.

The Cool Changer S1 comes in two variants - one with 4 GB of RAM and 64 GB of internal storage, and another with 6 GB of RAM and 128 GB of internal storage. It supports nanoSIM cards and has a memory card slot for expandable storage.

The phone features a 5.5-inch color IPS TFT display with a resolution of 1080 x 1920 pixels and a pixel density of 401 ppi. It also has a fingerprint scanner for added security, NFC for contactless payments, and stereo speakers for immersive audio experience.

In terms of camera capabilities, the Cool Changer S1 sports a 16 MP main camera with dual LED flash and a 8 MP selfie camera with LED flash. It supports various video formats and has features like digital zoom and autofocus.

The device is equipped with a 4070 mAh battery with quick and wireless charging support. It also includes sensors like accelerometer, gyroscope, barometer, and more for enhanced user experience.

Pros:
- High-performance processor and GPU
- Ample RAM and storage options
- Impressive display quality
- Good camera performance
- Long-lasting battery with fast charging

Cons:
- Slightly outdated operating system version
- Lack of water resistance feature
- Limited availability of accessories and support from the manufacturer