Samsung Galaxy Z Fold7 / Samsung Galaxy S24 (SM-S921B)

Samsung Galaxy Z Fold7: SM-F966 family (Best Buy lists SM-F966U); 12 GB/256 GB, 12 GB/512 GB, 16 GB/1 TB; Blue Shadow, Silver Shadow, Jetblack, and Mint only on Samsung.com. The SIM layout varies by country and carrier.

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 Z Fold7Samsung Galaxy S24 (SM-S921B)
Release year20252024
Main display8.0-inch QXGA+ Dynamic AMOLED 2X (Infinity Flex); 2184 × 1968, 368 ppi; 1–120 Hz adaptive

The adaptive refresh rate rises to 120 Hz when scrolling and drops as low as 1 Hz on static content to save battery. The foldable inner screen has a plastic protective layer and is not as hard as glass.

Samsung		—
Cover display6.5-inch FHD+ Dynamic AMOLED 2X; 2520 × 1080 (21:9), 422 ppi; 1–120 Hz adaptive

The 21:9 ratio gives a width close to an ordinary phone for typing while folded.

Samsung		—
Peak brightnessUp to 2,600 nits

The peak is reached briefly in strong light; it is not a sustained full-screen value.

Samsung		—
Dimensions and weightFolded 72.8 × 158.4 × 8.9 mm; unfolded 143.2 × 158.4 × 4.2 mm; 215 g Samsung—
Glass and frameCorning Gorilla Glass Ceramic 2 on the cover screen, Gorilla Glass Victus 2 on the back; Advanced Armor Aluminum frame

Samsung says Advanced Armor Aluminum gives a 10% gain in strength and hardness over the previous frame.

Samsung		—
Water resistanceIP48 (lab-tested in fresh water up to 1.5 metres for up to 30 minutes)

The 4 in IP48 refers to protection against solid objects larger than 1 mm; it is not a rating against fine dust. Samsung’s water test was done in fresh water.

Samsung		—
ProcessorSnapdragon 8 Elite for Galaxy Samsung10 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
Memory and storage12 GB + 256 GB; 12 GB + 512 GB; 16 GB + 1 TB

16 GB of memory comes only with the 1 TB version; there is no memory card slot.

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 cameras200 MP wide (ƒ/1.7, OIS, 85°); 12 MP ultra wide (ƒ/2.2, 120°); 10 MP telephoto (ƒ/2.4, OIS, 3× optical)

3× optical zoom uses the telephoto lens; 30× Space Zoom adds AI-assisted 10× digital zoom on top of the 3× optical.

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 cameras10 MP on the cover screen (ƒ/2.2, 85°); 10 MP on the main screen (ƒ/2.2, 100°) Samsung—
Battery and charging4,400 mAh typical dual battery (rated 4,272 mAh); 50% in about 30 minutes with a 25 W adapter; Fast Wireless Charging 2.0; Wireless PowerShare

The dual battery consists of cells split across both halves. Wireless PowerShare provides wireless power from the back of the phone to accessories such as earbuds or a watch.

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
SoftwareAndroid 16 and One UI 8 Samsung—
Connectivity5G, LTE, Wi-Fi 7, Bluetooth 5.4 Samsung5G; 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
SIMUp to two nano-SIMs plus multi-eSIM

The SIM layout varies by market and carrier.

Samsung		—
Security and sensorsSide-mounted capacitive fingerprint sensor; Samsung Knox and Knox Vault; accelerometer, barometer, gyro, geomagnetic, Hall, proximity and light sensors

Knox Vault keeps sensitive data such as passwords and biometrics in a separate secure processor and memory.

Samsung		—
Model code—SM-S921B/DS; Nano-SIM + eSIM or dual eSIM Samsung
Display—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
Video—8K (7680 × 4320) at 30 fps; slow motion at UHD 120 fps and FHD 240 fps Samsung
Front camera—12 MP, ƒ/2.2, 80° 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
Durability—IP68 (up to 1.5 m of fresh water for up to 30 minutes) Samsung
Size and weight—147.0 × 70.6 × 7.6 mm; 167 g Samsung
Colours—Onyx Black, Marble Grey, Cobalt Violet, Amber Yellow; extra online colours Samsung