The Galaxy S24 is Samsung’s compact 2024 flagship. It offers a 6.2-inch 120 Hz Dynamic AMOLED 2X screen, a ten-core processor, a 50 MP main camera plus 3x telephoto, IP68 and a promise of seven generations of Android upgrades. Testing found the screen bright and charging no faster than the previous generation; owners praise the size and the screen.
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.
| Specification | Value |
|---|---|
| Model code | SM-S921B/DS; Nano-SIM + eSIM or dual eSIM |
| Display | 6.2-inch (6.0-inch with rounded corners) Dynamic AMOLED 2X; 2340 × 1080 (FHD+); adaptive 1–120 Hz; Vision Booster |
| Processor | 10 cores; 3.2 GHz, 2.9 GHz, 2.6 GHz and 1.95 GHz clusters |
| Memory and storage | 8 GB RAM; 128 GB (about 103.9 GB available) |
| Rear cameras | 50 MP wide (ƒ/1.8, OIS, 85°); 10 MP 3x telephoto (ƒ/2.4, 36°); 12 MP ultra-wide (ƒ/2.2, 120°) |
| Video | 8K (7680 × 4320) at 30 fps; slow motion at UHD 120 fps and FHD 240 fps |
| Front camera | 12 MP, ƒ/2.2, 80° |
| Battery and charging | 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 |
| Rated battery life | Up to 29 hours of video playback; rated for at least 2000 charge cycles; energy efficiency class A |
| Connectivity | 5G; Wi-Fi 6E (2.4 + 5 + 6 GHz); Bluetooth 5.3; NFC; USB Type-C (USB 3.2 Gen 1) |
| Location and sensors | GPS, GLONASS, BeiDou, Galileo, QZSS; accelerometer, barometer, fingerprint, gyro, geomagnetic, Hall, light and proximity sensors |
| Operating system | Shipped with Android 14 and One UI 6.1; seven generations of OS upgrades and seven years of security updates |
| Durability | IP68 (up to 1.5 m of fresh water for up to 30 minutes) |
| Size and weight | 147.0 × 70.6 × 7.6 mm; 167 g |
| Colours | Onyx Black, Marble Grey, Cobalt Violet, Amber Yellow; extra online colours |
Samsung presents the Galaxy S24 series with Galaxy AI features and seven years of update support. Samsung Newsroom
In GSMArena’s Exynos 2400 test unit, the battery Active Use Score was 12 hours 7 minutes, about 40 minutes more than the S23. With a 25 W adapter it reached 29% in 15 minutes, 59% in 30 minutes and 100% in 75 minutes, on par with the S23. The screen measured 446 nits in manual mode (785 with extra brightness) and 1401 nits in auto mode, passing 2000 nits on small white patches. In the sustained load test the CPU dropped to about 60% of peak and the GPU to about 50%; the frame got warm but never too hot to hold. The Exynos 2400 matched the Snapdragon 8 Gen 3 in Geekbench and trailed it in 3DMark Wild Life.
GSMArena: Samsung Galaxy S24 review (battery, charging, performance)Of the two visible owner reviews at Coolblue Germany, NM says the phone is handy, fast and easy, with the battery lasting about three days in normal use; Kornelis says it lasts a full day with light use and about half a day with heavy use. Together they show how much battery life depends on usage.
Coolblue Germany: Samsung Galaxy S24 128GB Black customer reviewsFor the US model (SM-S921U, Snapdragon 8 Gen 3 for Galaxy), Best Buy reviews highlight the screen, camera, performance and battery; AnnieP says the battery lasts a couple of days and SergioH all day. MattK praises the compact size and long support period but finds the camera only decent. NathanS says updates sometimes change the home-screen layout, and Mtuk6969 wishes they had chosen the S24+ or Ultra. USMC1108A reports charge-port, fingerprint/face unlock, freezing and activation problems, including on a third unit; this is one person’s experience.
Best Buy: Galaxy S24 128GB Unlocked (SM-S921UZKAXAA) customer reviews