Compare Mobile Phones Side-by-Side

The Oppo A6x 4G looks like the more sensible pick if battery life is high on your list. Its 6500mAh cell is a clear advantage over the Redmi 17C’s 5160mAh battery, and that matters more in daily use than the small difference in screen size. Both phones offer a 120Hz display and the same 4GB of RAM, so neither is likely to feel dramatically ahead in basic smoothness or multitasking.

The Redmi 17C does give you a slightly larger 6.88-inch screen, which may appeal if you watch a lot of video or simply prefer a bigger display. But unless it is noticeably cheaper, that alone does not outweigh Oppo’s battery lead.

For most buyers comparing these two, the Oppo A6x 4G is the safer choice. The Redmi 17C is still worth considering for screen size, but the Oppo feels better matched to long, low-maintenance everyday use.