Unlike Motorola, which dedicated an entire year to building only four smartphones (Moto G, Mote E, Moto X Pure Edition and X Play), Samsung has been working on a variety of high end to low end phones for every category of buyers. The Galaxy J7 falls into the mid-range category and we’ll compare it to Oppo’s R5, which is almost one year old.
Designs and Displays
If you missed the glossy polycarbonate shells of the older Samsung smartphones, then the Galaxy J7 will be to your likely, especially because the frame is made of chrome, not of plastic and painted to look like metal. Overall, the device looks like any other typical mid-range Samsung device, featuring a rectangular body with curved edges and a physical oval home button placed below the screen, and which is surrounded by capacitive buttons. The J7 is a phablet that measures 152.2×78.7×7.5 mm, its weight is 171grams and the screen is Super AMOLED and sized at 5.5inch, supporting an average resolution of 720×1280 pixels at 267ppi.
The Oppo R5 has an ultra thin all-metal design, it’s available in two color options: Silver and Gold, and has wide white bands at the top and bottom of the back, resembling the iPhone 5S. The rear camera sits in the upper left and protrudes outwards just like the iPhone 6. The dimensions of this model are 148.9×74.5×4.9 mm, it’s relatively light at 155grams and it sports a 5.2-inch AMOLED screen with a Full HD resolution of 1080×1920 pixels at 423ppi pixel density. The R5 has a sharper screen, but with the same vibrant colors, because it uses Samsung’s technology, which adds a layer of semiconducting film behind the OLED panel, allowing it to activate each pixel.
Both the Galaxy J7 and the Oppo R5 are using a 28nm Qualcomm MSM8939 Snapdragon 615chip, but the quad core Cortex-A53 CPU of the Samsung phablet has a lower clock speed of 1.4GHz, compared to 1.7GHz, but the quad-core Cortex-A53 processor is clocked at 1GHz on both devices. However, the J7 has another variant which is powered by an Exynos 7580 octa-core 1.5GHz processor and the maximum supported RAM capacity is 1.5GB. The Oppo R5 clearly outperforms its rival, because it offers 2GB of RAM. The internal memory has the same capacity on both phones, 16GB, but only the J7 allows you to expand it up to 128GB.
Cameras and Batteries
Both phones have rear cameras of 13MP, which support autofocus, LED flash and HDR, but the Galaxy J7 is able to record 1080p video at 30frames per second, while the Oppo R5 shoots at 60frames per second. Also, the front cameras have a resolution of 5MP on both devices, so there is no difference between them.
The Oppo R5 loses a lot of ground with its small battery of 2000mAh, and which is non-removable, because the Galaxy J7 has a large battery of 3000mAh, but which lasts only 18 hours when making calls on 3G.
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