Advantages:

A beautiful 6 inch IPS LCD display
A massive 4230 mAh Battery
Dual Camera with decent results
Amazing Video recording features

Disadvantages:

Android 8.1 Oreo and Color OS 5.2, update to Android Pie and Color OS 6 not available as of yet.
¾ GB RAM only
No Fast Charging
Micro USB 2.0
81.6% screen to body ratio
271 ppi density
Too little color options available

How is Oppo A7n different from A5s?

Both Oppo A7n and Oppo A5s are from the same Oppo A series category which are phones which provide exciting features in the lower mid range. The Oppo A5s being a tit bit cheaper than the said Oppo A7n. Both phones share similar specifications, the Main Camera, the Battery, Processor, Software and Operating System. Oppo A5s does come in 3 variants of 2/3/4 GB RAM whereas A7n does not. The Selfie Camera is where the major difference lies between the two said phones. The Oppo A7n has a 16 MP f/2.0 Selfie camera and the A7n has an 8 MP f/2.0 camera, if you are someone who prefers using a better selfie camera then A7n might be the perfect choice for you. The Oppo A5s is available in different colors as compared

to A7n.

How are the camera, battery, and processor performance of A7n?

Oppo A7n runs on a MediaTek 6765 Helio P35 processor, it has an Octa-core processor and a PowerVR GE8320 GPU, furthermore the phones has 4 GB RAM which means that gaming and streaming on this phone will be a delightful experience to say the least.

The Main camera has an additional Auto Focus (AF) feature and sports a dual rear camera, the main one being 13 MP with a focus of f/2.2, the extra camera is a 2 MP, f/2.4 depth sensor HDR and Panorama features. The front camera has a single 16 MP f/2.0 with HDR enabled features through which you can capture some truly exciting photos.

The Battery of this phone 4230 mAh battery with no signs of Fast Charging or Wireless charging.

Is Oppo A7n the best Oppo phone in this price range?

It totally depends upon what you like and prefer more. The phone is a decent grab at this price range but there are better alternatives available to this phone; for example the Realme C2.