Samsung Galaxy S25 / Samsung Galaxy S24 (SM-S921B)

Samsung Galaxy S25: 6.2-inch Galaxy S25; 12 GB RAM; 128/256/512 GB options vary by market; Navy, Icyblue, Silver Shadow, Mint and online colours. Galaxy S25+, S25 Ultra, S25 Edge and S25 FE are separate models.

Samsung Galaxy S24 (SM-S921B): Galaxy S24, global SM-S921B (8 GB / 128 GB, Nano-SIM + eSIM). The US SM-S921U uses a different processor; the Galaxy S24+ and S24 Ultra are separate models.

SpecificationSamsung Galaxy S25Samsung Galaxy S24 (SM-S921B)
Release year20252024
ProcessorSnapdragon 8 Elite for Galaxy

A higher-clocked Snapdragon 8 Elite version made for Samsung. Samsung lists a 40% larger vapour chamber for the series.

Samsung		10 cores; 3.2 GHz, 2.9 GHz, 2.6 GHz and 1.95 GHz clusters

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

Samsung
Display6.2-inch FHD+ Dynamic AMOLED 2X; 1–120 Hz adaptive refresh; Vision Booster

The visible area is about 6.0 inches with rounded corners. The 1–120 Hz range lowers the refresh rate for static content to save battery; Vision Booster adjusts tone mapping to improve readability in sunlight.

Samsung		6.2-inch (6.0-inch with rounded corners) Dynamic AMOLED 2X; 2340 × 1080 (FHD+); adaptive 1–120 Hz; Vision Booster

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

Samsung
Front glass and frameCorning Gorilla Glass Victus 2; aluminium frame

The anti-reflective Gorilla Armor 2 of the Ultra is not used on this model.

Samsung		—
Memory and storage12 GB RAM; 128, 256 or 512 GB (varies by market)

There is no card slot for storage expansion.

Samsung		8 GB RAM; 128 GB (about 103.9 GB available)

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

Samsung
Rear cameras50 MP wide (ƒ/1.8, OIS, 85°); 12 MP ultra wide (ƒ/2.2, 120°); 10 MP telephoto (3× optical, ƒ/2.4, 36°)

The ultra-wide camera has no OIS. The 3× telephoto provides optical zoom through a separate lens rather than a crop of the main camera.

Samsung		50 MP wide (ƒ/1.8, OIS, 85°); 10 MP 3x telephoto (ƒ/2.4, 36°); 12 MP ultra-wide (ƒ/2.2, 120°)

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

Samsung
Front camera12 MP (ƒ/2.2, 80°) Samsung12 MP, ƒ/2.2, 80° Samsung
Battery and charging4000 mAh (typical; rated 3885 mAh); 25 W wired, about 50% in around 30 minutes; Fast Wireless Charging 2.0; Wireless PowerShare

25 W needs a 3 A USB-C cable and a compatible adapter. Wireless PowerShare lets the phone wirelessly charge another device. The 45 W wired charging of the S25+ and Ultra is not available here.

Samsung		4000 mAh typical (3880 mAh rated); about 50% in 30 minutes with a 25 W adapter and 3 A cable; Fast Wireless Charging 2.0; Wireless PowerShare

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

Samsung
Operating system and updatesAndroid 15, One UI 7; seven generations of OS upgrades and seven years of security updates

Support is counted from the global launch date; timing may vary by model, carrier and market.

Samsung		—
Connectivity5G; LTE; Wi-Fi 7; Wi-Fi Direct; Bluetooth 5.4

5G and LTE availability varies by market and carrier.

Samsung		5G; Wi-Fi 6E (2.4 + 5 + 6 GHz); Bluetooth 5.3; NFC; USB Type-C (USB 3.2 Gen 1)

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

Samsung
DurabilityIP68 SamsungIP68 (up to 1.5 m of fresh water for up to 30 minutes) Samsung
Size and weight146.9 × 70.5 × 7.2 mm; 162 g Samsung147.0 × 70.6 × 7.6 mm; 167 g Samsung
Model code—SM-S921B/DS; Nano-SIM + eSIM or dual eSIM Samsung
Video—8K (7680 × 4320) at 30 fps; slow motion at UHD 120 fps and FHD 240 fps Samsung
Rated battery life—Up to 29 hours of video playback; rated for at least 2000 charge cycles; energy efficiency class A

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

Samsung
Location and sensors—GPS, GLONASS, BeiDou, Galileo, QZSS; accelerometer, barometer, fingerprint, gyro, geomagnetic, Hall, light and proximity sensors Samsung
Operating system—Shipped with Android 14 and One UI 6.1; seven generations of OS upgrades and seven years of security updates

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

Samsung
Colours—Onyx Black, Marble Grey, Cobalt Violet, Amber Yellow; extra online colours Samsung