Oppo A17 is a budget smartphone that offers a decent set of features for its price point. The device features a 6.44 inches HD+ display with a resolution of 720 x 1600 pixels. It is powered by a MediaTek Helio P35 processor, paired with 4GB of RAM and 64GB of internal storage, which can be expanded via a microSD card.

Oppo A17 has a quad-camera setup on the back, consisting of a 13-megapixel primary sensor, a 2-megapixel macro lens, a 2-megapixel depth sensor, and a 2-megapixel monochrome sensor. On the front, there is an 8-megapixel selfie camera. The camera performance is decent for a budget device, but it does not compete with more high-end smartphones.

Oppo A17 runs on Oppo's ColorOS 7.2, which is based on Android 10. The interface is clean and user-friendly, with a number of useful features such as dark mode and the ability to customize the home screen layout. The device also has a fingerprint scanner on the side, which is accurate and responsive.

A17 is powered by a 5,000 mAh battery, which is larger than most budget smartphones. It also supports 18W fast charging, which is a nice touch for a device in this price range.

In terms of build quality, the A17 feels solid and well-constructed. The back of the device is made of plastic, but it has a nice matte finish that gives it a premium look. The device is also available in three different colors: Dynamic Black, Mystery Blue, and Classic Silver.

Good Side:
* Affordable price point
* Sleek and attractive design
* Large battery capacity for long battery life
* Good camera capabilities for the price range
* Ample storage space for apps and media
* Comes with latest Android operating system

Bad Side:
* Limited processing power compared to more expensive smartphones
* No support for fast charging
* Lower resolution display compared to other smartphones in the same price range
* Limited RAM capacity may result in slower performance with multiple apps open
* No water resistance or dust protection
* No expandable storage options.

Overall, Oppo A17 is a solid budget smartphone that offers a decent set of features for it's price point. It has a large display, a good processor, and a decent camera setup. The device also has a large battery and supports fast charging, which is a nice touch. If you are looking for a budget smartphone that offers a good balance of features and price, the Oppo A17 is worth considering.