vivo X500 / Samsung Galaxy S24 (SM-S921B)

Model code listed for China; the manufacturer document gives no other regional code.

Samsung notes that the processor varies by market; the US SM-S921U does not use the same chip as this global model.

This record covers the 12 GB model. Usable memory is lower than the label because the system reserves a share.

Usable space is lower than the label because of the system and preinstalled apps.

vivo says 144 Hz applies in gaming scenarios.

The adaptive refresh rate drops to 1 Hz on static content to save power; Vision Booster adjusts tone and contrast in bright light.

Peak values, not sustained brightness.

The manufacturer does not name the front glass.

The 200 mm-equivalent teleconverter is sold separately and is not in the box.

90 W is the charger's maximum output; actual power varies with conditions. The wireless charger is sold separately.

The document gives no power figure.

The hardware supports 6.0; some functions will arrive in a later OTA update.

The headset connection takes digital USB-C headsets only.

NFC-SIM payments work only from the SIM 1 slot.

5G dual-SIM works only with some band combinations and with operator SA/VoNR support.

Actual availability depends on the carrier network and software version.

The 15% larger VC area versus the previous generation is vivo's own claim.

vivo states this is not a professional waterproof phone and that immersion damage is not covered by warranty.

Names in brackets are translations; the vivo China page names the colours in Chinese.

The document gives no update commitment.

The series also has 256 and 512 GB and 12 GB RAM configurations; there is no microSD slot.

3x optical zoom uses the separate telephoto lens; the 2x option crops the main sensor at optical quality, and digital zoom reaches 30x.

Wireless PowerShare lets the back of the phone wirelessly charge small devices such as a watch or earbud case. No adapter is included.

The 2000-cycle figure comes from the EU label, which targets the battery keeping a set share of its capacity over that span.

The 6 GHz band needs a Wi-Fi 6E router.

Samsung’s UK page lists security updates for this model until 31 January 2031; timing can vary by market.