Compare Mobile Phones Side-by-Side

This is a very close comparison, and neither phone looks dramatically faster or smoother than the other based on the core specs. Both use a Unisoc processor, both have 4GB of RAM, and both offer 120Hz displays, so day-to-day use should feel broadly similar: fine for basic apps, scrolling, video, and light gaming, but not something to buy for heavy multitasking or demanding performance.

The Poco C81 gives you the slightly larger screen, which may appeal if you watch a lot of videos or simply want more display area. The OPPO A6c, though, has the more meaningful advantage: its 7000mAh battery is noticeably larger than the Poco’s already big 6300mAh cell. For this type of phone, battery life matters more than tiny display-size differences.

If pricing is close, I’d lean toward the OPPO A6c for its bigger battery. Pick the Poco C81 only if the larger screen or a lower price makes it more attractive.