Samsung Galaxy S24 (SM-S921B) / Apple iPhone 15 Pro

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.

Apple iPhone 15 Pro: 6.1-inch iPhone 15 Pro (A2848, A2849 and regional models); 128 GB, 256 GB, 512 GB and 1 TB; Black, White, Blue and Natural Titanium. The 6.7-inch iPhone 15 Pro Max is a separate model with a different telephoto and battery.

SpecificationSamsung Galaxy S24 (SM-S921B)Apple iPhone 15 Pro
Release year20242023
Model codeSM-S921B/DS; Nano-SIM + eSIM or dual eSIM Samsung—
Display6.2-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		6.1-inch Super Retina XDR OLED; 2556 × 1179 pixels, 460 ppi; Dynamic Island

On OLED each pixel emits its own light, so blacks turn fully off; typical contrast is listed as 2,000,000:1.

Apple
Processor10 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		A17 Pro; 6-core CPU (2 performance, 4 efficiency), 6-core GPU, 16-core Neural Engine Apple
Memory and storage8 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°); 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		—
Video8K (7680 × 4320) at 30 fps; slow motion at UHD 120 fps and FHD 240 fps Samsung4K at 24/25/30/60 fps; Dolby Vision HDR up to 4K 60 fps; ProRes 4K 60 fps (with external recording); Log video; spatial video at 1080p 30 fps

ProRes 4K at 60 fps requires recording to external storage over USB-C. Log records a flat profile for colour grading.

Apple
Front camera12 MP, ƒ/2.2, 80° Samsung—
Battery and charging4000 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		Up to 23 hours video playback, 20 hours streamed; about 50% in 30 minutes with a 20 W adapter; MagSafe and Qi2 15 W, Qi 7.5 W

No adapter is included. Qi2 is a wireless charging standard with magnetic alignment like MagSafe.

Apple
Rated battery lifeUp 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		—
Connectivity5G; 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		5G (sub-6 GHz and mmWave), Wi-Fi 6E, Bluetooth 5.3, second-generation Ultra Wideband, Thread, NFC

mmWave support varies by region. Thread is for low-power networking with smart home devices.

Apple
Location and sensorsGPS, GLONASS, BeiDou, Galileo, QZSS; accelerometer, barometer, fingerprint, gyro, geomagnetic, Hall, light and proximity sensors Samsung—
Operating systemShipped 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		—
DurabilityIP68 (up to 1.5 m of fresh water for up to 30 minutes) SamsungIP68 (IEC 60529, up to 6 m for 30 minutes); titanium frame, Ceramic Shield front, textured matte glass back Apple
Size and weight147.0 × 70.6 × 7.6 mm; 167 g Samsung146.6 × 70.6 × 8.25 mm; 187 g Apple
ColoursOnyx Black, Marble Grey, Cobalt Violet, Amber Yellow; extra online colours Samsung—
Refresh rate—ProMotion adaptive up to 120 Hz; Always-On display

The panel rises to 120 Hz when scrolling and gaming and drops its rate for static content to save power, which lets the lock screen stay on.

Apple
Brightness—1000 nits typical, 1600 nits HDR peak, 2000 nits outdoor peak

The outdoor figure is used only briefly in strong sunlight; normal use sits around 1000 nits.

Apple
Storage—128 GB, 256 GB, 512 GB or 1 TB Apple
Main camera—48 MP, 24 mm, ƒ/1.78; second-generation sensor-shift OIS; 24 MP and 48 MP photos

Sensor-shift stabilisation moves the sensor rather than the lens to counter hand shake; the default capture is 24 MP.

Apple
Telephoto and ultra wide—12 MP 3× telephoto (77 mm, ƒ/2.8, OIS); 12 MP ultra wide (13 mm, ƒ/2.2, 120°); 2× (48 mm) option from the main sensor

The 2× image is taken from the centre of the 48 MP sensor; the 15× digital zoom is not optical.

Apple
USB-C—USB 3 up to 10 Gb/s; DisplayPort video out up to 4K HDR (with a compatible adapter)

10 Gb/s needs a USB 3 cable; the 1 m cable in the box is a charge cable and does not guarantee that speed.

Apple
Location—Dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, BeiDou, NavIC); digital compass

Receiving satellite signals on two frequencies helps reduce position drift between tall buildings.

Apple
SIM—Dual eSIM on US models (no physical SIM); SIM tray plus eSIM on models for other markets Apple
Action button—Assignable to Silent mode, Focus, Camera, Flashlight, Voice Memo, Translate, Magnifier, Shortcut or Accessibility

It replaces the old mute switch; pressing and holding runs the chosen function.

Apple
In the box—iPhone, 1 m USB-C Charge Cable, documentation; no adapter or earphones Apple