Compare Mobile Phones Side-by-Side

The Realme C100x is the phone to look at if battery capacity is your main priority. Its 8000mAh cell is the biggest difference here, and paired with the same 4GB of RAM and a 120Hz display, it feels more like a practical endurance pick than a performance-focused one.

The REDMI 17 5G makes more sense for most buyers, though. Its Qualcomm processor is the more reassuring choice than the Unisoc chip in the Realme, especially for day-to-day smoothness, app compatibility, and longer-term reliability. The slightly larger 6.9-inch 120Hz screen also gives it a small edge for media and browsing, while the 7500mAh battery is still very large.

If you only care about squeezing out the longest possible battery life, the Realme C100x has the advantage. For a better-balanced phone with stronger chipset confidence and 5G branding in the mix, the REDMI 17 5G is the safer buy.