Compare Mobile Phones Side-by-Side

The vivo X500 looks like the more practical pick from this spec sheet. Both phones give you a fast 144Hz display and 12GB of RAM, so the basic feel should be smooth either way, but vivo pairs that with a huge 7500mAh battery. That is the kind of difference you are likely to notice every day, especially if you stream, game, travel, or simply hate watching the battery percentage.

The Asus ROG Phone 9 FE still has the appeal of a larger 6.78-inch screen and a Qualcomm platform, which may matter if you prefer Asus’s ROG direction or want the bigger canvas. But its 5700mAh battery is clearly smaller, and there is nothing here that offsets that gap strongly enough.

For most buyers comparing only these specs, the vivo X500 makes more sense. Pick the Asus if the larger display and ROG/Qualcomm preference are the draw; otherwise, the vivo’s battery advantage is too big to ignore.