The vivo X100 is better.
vivo X100 is positioned as an image + game flagship, vivo S18 is positioned as a mid-range image, and the ** difference between the two mobile phones is relatively large; vivo X100 is ahead of vivo S18 in terms of image, games, entertainment, processor, etc., but it is more expensive, while vivo S18's is cheaper.
From the configuration point of view, the processor, storage system, image system, appearance design, charging power, and waterproof system of vivo X100 mobile phone are much better than vivo S18.
vivo X100 uses a flagship-level processor MediaTek Dimensity 9300, this processor is a flagship-level processor in 2024, and the comprehensive score is even higher than the third-generation Snapdragon 8, Apple's A17 Pro chip, and vivo S18 uses a mid-range processor Third-generation Snapdragon 7 mobile platform, there is no problem with daily use, and it is relatively smooth, but in terms of performance, there is a certain gap with Dimensity 9300.
vivo X100 has three cameras on the rear, respectively50 million pixel main camera + 50 million pixel wide angle + 64 million pixel periscope lens, while vivo S18 uses a 50 million pixel human eye bionic main camera + 8 million pixel ultra wide-angle lens, whether it is from the sensor, or the focal length segment of the lens, as well as the configuration of Zeiss lens, vivo X100 undoubtedly has more advantages.
However, vivo S18 rear soft ring, front 50 million pixel ultra-light sensitive portrait lens, it does have more advantages in portrait**, and it is more suitable for girls who like** to use, full of fill light, you can shoot portraits more watery, and more beautiful.
In terms of charging, vivo S18 supports 80W fast charging, while vivo X100 supports 120W fast charging, and the battery capacity of both phones is 5000mAh, only there is a difference in charging, vivo X100 charges more quickly.
The vivo X100 supports IP68 level of dust and water resistance, while the vivo S18 only supports life-level water resistance, and the vivo X100 is a little stronger in terms of dust and water resistance.
In terms of appearance, everyone's aesthetics may be different, and I personally think that the design of vivo X100 is more good-looking, giving people more atmosphere, coordination, and a feeling of a round sky, which is very good-looking, and the feel is also very good.
The ** of the two mobile phones is also different, vivo X100The entry model is also 3999 yuan, and the vivo S18 entry model can be bought for more than 2000 yuan, and the difference is still relatively obvious.