Oppo A77
Specifications

Secondary Camera: 16 MPix f/2.0, 1/3" sensor size, 1.12 µm pixel size
Pricecompare
Average of 2 scores (from 2 reviews)
Reviews for the Oppo A77
Source: Gadgetguy

The Oppo A77 is a respectable low-to-mid-priced phone, generally with performance that fits about right in that range. What lifts it is the much richer appearance and build. And the rare ability to accommodate two SIMs plus a microSD card.
Single Review, online available, Medium, Date: 09/02/2017
Rating: Total score: 82% price: 82% performance: 78% workmanship: 90%
Source: Good Gear Guide

Oppo has once again redefined the low-end phone by offering a good mid-range model at a very-affordable price.
Single Review, online available, Long, Date: 07/17/2017
Rating: Total score: 90%
Comment
ARM Mali-T860 MP2: Dual-Core version of the Mali-T860 graphics card from ARM for mostly Android based smartphones and tablets. E.g. in the Mediatek Helio P10 clocked at 700 MHz and produced in 28nm.
Only some 3D games with very low demands are playable with these cards.
» Further information can be found in our Comparison of Mobile Graphics Cards and the corresponding Benchmark List.
MT6750: ARM-based octa-core SoC (4x Cortex-A53 up to 1.5 GHz + 4x Cortex-A53 up to 1 GHz) with 64-Bit support and integrated LTE Cat. 6 radio.» Further information can be found in our Comparison of Mobile Processsors.
5.50":
This display is quite big for a smartphone but frequently used for smartphones.
Large display-sizes allow higher resolutions. So, details like letters are bigger. On the other hand, the power consumption is lower with small screen diagonals and the devices are smaller, more lightweight and cheaper.
» To find out how fine a display is, see our DPI List.0.153 kg:
Only few smartphones are more lightweight than this.
86%: This is a good rating above average. Nevertheless you should not forget, that 10-15% of all notebook-models get a better rating.
» Further information can be found in our Notebook Purchase Guide.