Apple iPhone 15 vs Apple Watch Series 12 42mm

A16 Bionic chip

S11 chip with 64-bit dual-core processor

Yes

S11 chip with 64-bit dual-core processor

4-core Neural Engine

128GB | 256GB | 512GB

64GB

17

Subject to change based on future operating system updates

Enabled by TrueDepth camera for facial recognition

Pay with your iPhone using Face ID in stores, within apps, and on the web

Send and receive money in Messages with Apple Cash

Complete purchases made with Apple Pay on your Mac

Pay for your ride using Express Transit

Use your voice to send messages, set reminders, and more

Activate hands-free with only your voice using “Siri” or “Hey Siri”

Use your voice to run shortcuts from your favorite apps

The next generation of Apple Intelligence is centered around you, integrated into your apps, and built with privacy.

Apple Intelligence powers Siri AI — an entirely new version of Siri that’s more personal, conversational, and powerful, along with helpful features across apps.

27

Subject to change based on future operating system updates

n77 C-Band, n260

Bands n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n29, n30, n38, n40, n41, n48, n53, n66, n70, n71, n77, n78 n79, n258, n260, n261

Bands n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n38, n40, n41, n66, n71

Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 34, 38, 39, 40, 41, 42, 46, 48, 53, 66, 71

Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71

850, 900, 1700/2100, 1900, 2100 MHz

850, 900, 1800, 1900 MHz

Yes

Yes

FaceTime video calling over cellular or Wi-Fi

FaceTime HD (1080p) video calling over 5G or Wi-Fi

FaceTime audio

Voice over LTE (VoLTE)

Wi-Fi calling

Wi-Fi (802.11ax) with 2x2 MIMO

Wi‑Fi 4 (802.11n)

Yes

With reader mode

v5.3

v5.3

Dual eSIM support

iPhone 15 and iPhone 15 Plus use eSIM technology and are not compatible with physical SIM cards.

Electronic SIM

Yes

Required to use smartwatch over cellular; rate plan required

Wireless charging up to 15W

Qi wireless charging up to 7.5W

Magnet array

Alignment magnet

Accessory Identification NFC

Magnetometer

Safari

Improved Workout app with new metrics, new views, and advanced ways to train.

Emergency SOS

International emergency calling

Fall Detection

Crash Detection

Last Emergency Call Availability Waypoint

Flashlight

Backtrack

Noise monitoring

Generates an ECG similar to a single-lead electrocardiogram.

The most accurate heart rate sensing in a wearable, Series 12 now measures HRV as often as every five minutes for insights on stress and recovery, and takes background heart rate readings every five seconds.

Face ID

Barometer

High dynamic range gyro

High-g accelerometer

Proximity sensor

Dual ambient light sensors

Health Sensing System: third-generation electrical heart sensor, always-on optical heart sensor, blood oxygen sensor, and temperature sensor

Compass

Always-on altimeter

High-g accelerometer

High dynamic range gyroscope

Ambient light sensor

Depth gauge to 6 meters

Water temperature sensor

Yes

Yes

Yes

Apple Music®

Apple Music®

AAC, MP3, Apple Lossless, FLAC, Dolby Digital, Dolby Digital Plus, and Dolby Atmos

Yes

M3, T4

Yes

Yes