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AppleSmartwatches
Apple Watch Series 12 GPS + Cellular 42mm Space Gray Aluminum Case with Navy Blue Sport Band - S/M
5G RedCapMPN MJFX4LS/A
- 42 mm
$525.28
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Datasheets & documents
Overview
Apple Watch Series 12 GPS + Cellular pairs a 42mm Space Gray aluminum case with a Navy Blue Sport Band in size S/M. Its 5G (RedCap) and LTE modem supports calls, messages and data without an iPhone nearby, with international roaming. The all-new Health Sensing System records background heart rate every five seconds and HRV as often as every five minutes. The Always-On Retina display reaches 2000 nits, and the aluminum cellular case weighs 31.5 grams. It suits everyday health tracking, commuting and staying reachable.
- 5G (RedCap) and LTE cellular with international roaming
- Health Sensing System with heart rate every five seconds and HRV as often as every five minutes
- 42mm Space Gray aluminum case, 31.5 grams, with Navy Blue Sport Band S/M
- Always-On Retina display, 2000 nits peak, Ceramic Shield 2
- S11 chip with 4-core Neural Engine, 64GB capacity and Siri powered by Apple Intelligence
- Up to 24 hours normal use, 38 hours in Low Power Mode; 80% charge in about 30 minutes
- 50m water resistance, IP6X dust resistance, Fall and Crash Detection
- Take calls and messages and use data over cellular while your iPhone stays at home
Apple Watch Series 12 is Apple's core smartwatch for health, fitness and safety, and the GPS + Cellular model lets it work independently of an iPhone. This configuration (MJFX4LS/A) has a 42mm Space Gray aluminum case and a Navy Blue Sport Band in size S/M. The 5G (RedCap) and LTE modem supports international roaming. The case measures 42 by 37 by 9.7mm and weighs 31.5 grams, and it fits 130–200mm wrists.
The all-new Health Sensing System pairs a second-generation electrical heart sensor with always-on optical, blood oxygen and temperature sensors. Series 12 takes background heart rate readings every five seconds and measures HRV as often as every five minutes. That data feeds the new Readiness score, Vitals, ECG, sleep score, and sleep apnea and hypertension notifications. For training, it provides Training Load, VO2 max, Pacer, Race Route, Automatic Track Detection and Precision L1 GPS across GPS, GLONASS, Galileo, QZSS and BeiDou.
The S11 chip has a 64-bit dual-core processor, a 4-core Neural Engine and 64GB of capacity. It runs watchOS with Siri AI powered by Apple Intelligence and Audio Intelligence features, including Live Rewind and Siri Recap. The Always-On Retina display uses LTPO3 wide-angle OLEDs with 326 ppi and 2000 nits peak brightness. On aluminum models, Ceramic Shield 2 covers the display.
Safety features include Emergency SOS, international emergency calling, Fall Detection, Crash Detection, Backtrack and Check In. The watch is water resistant to 50m (swimproof) under ISO 22810:2010 and dust resistant to IP6X, with a depth gauge to 6 meters. Battery life reaches up to 24 hours of normal use and up to 38 hours in Low Power Mode. It charges to 80% in about 30 minutes using the included 1m Magnetic Fast Charger to USB-C cable.
Ideal for
- Staff who need to stay reachable by call and message without carrying a phone
- Daily health monitoring with Readiness, HRV, sleep score and hypertension notifications
- Runners and gym users tracking Training Load, VO2 max and heart rate zones
- Commuters and travelers using Apple Pay, international roaming and emergency calling
- Family members who want Fall Detection and Check In for peace of mind
Specifications
Chip
- Capacity
- 64GB
- Processor
- S11 chip with 64-bit dual-core processor
- Neural Engine
- 4-core Neural Engine
- Audio Intelligence
- Live Rewind, Siri Recap, Shazam, Sound Recognition
Audio
- Details
- Speaker, microphone, media playback
Safety
- Details
- Emergency SOS, international emergency calling, Fall and Crash Detection, emergency call waypoint, Flashlight, Backtrack, noise monitoring, Check In
Display
- Type
- Always-On Retina, wide-angle OLED, LTPO3
- Pixel Density
- 326 pixels per inch
- Cover Aluminum
- Ceramic Shield 2 (aluminum cases)
- Minimum Refresh
- 1Hz refresh
- Peak Brightness
- 2000 nits peak
- Active Area 42mm
- 374 by 446 pixels, 326 ppi
- Active Area 46mm
- 416 by 496 pixels, 326 ppi
- Minimum Brightness
- 1 nit minimum
- Cover Titanium Ceramic
- Sapphire front crystal (titanium and ceramic cases)
General
- MPN
- MJFX4LS/A
- UPC
- 195951374239
- Brand
- Apple
- Product Type
- Smartwatch
- Product Family
- Apple Watch Series 12
- Shipping Weight
- 0.70 lb
Package
- IN The Box
- Apple Watch Series 12, band, Magnetic Fast Charger to USB-C Cable (1m)
Sensors
- Other Sensors
- Compass, always-on altimeter, high-g accelerometer, high dynamic range gyroscope, ambient light sensor, depth gauge to 6m, water temperature sensor
- Health Sensing System
- Second-generation electrical heart sensor, always-on optical heart sensor, blood oxygen sensor, temperature sensor
Cellular
- Other
- Apple Watch For Your Kids support, international roaming
- Models
- Models A3582 and A3587
- Technology
- 5G (RedCap) and LTE
- Fdd LTE Bands
- 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 66, 71
- Tdd LTE Bands
- 38, 39, 40, 41
- Fdd 5G NR Bands
- n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n66, n71
- Tdd 5G NR Bands
- n38, n40, n41
Controls
- Details
- Digital Crown with haptics, side button, single tap/double tap/wrist flick gestures, Siri powered by Apple Intelligence
Software
- Assistant
- Siri AI powered by Apple Intelligence
- Operating System
- watchOS
Durability
- Dust Resistance
- IP6X
- Water Resistance
- 50m (swimproof) under ISO 22810:2010
Environment
- Waste
- Zero waste to landfill at established final assembly sites
- Energy
- 100% renewable manufacturing electricity; customer energy use matched with renewable electricity
- Chemistry
- Materials covered by Apple's Regulated Substances Specification
- Packaging
- 100% fiber-based packaging
- Recycled Content
- 40% recycled content (aluminum and titanium cases)
- Recycled Materials
- 100% recycled aluminum case, cobalt, copper wire, gold plating and tin solder; 95% recycled lithium
Connectivity
- GNSS
- Precision L1 GPS: GPS, GLONASS, Galileo, QZSS, BeiDou
- Wi-Fi
- Wi-Fi 4 (802.11n), 2.4GHz and 5GHz
- Other
- Apple Pay, GymKit
- Bluetooth
- Bluetooth 5.3
- Ultra Wideband
- Second-generation Ultra Wideband chip
Accessibility
- Features
- VoiceOver, Zoom, AssistiveTouch, RTT, Live Speech, Personal Voice, Live Listen, Sound Recognition and more
Compatibility
- Iphone
- iPhone 11 or later, incl. iPhone SE (2nd gen or later), with iOS 27 or later
Power And Battery
- Normal Use
- Up to 24 hours normal use
- Fast Charge
- Up to 80% charge in about 30 minutes
- Battery Type
- Built-in rechargeable lithium-ion battery
- Low Power Mode
- Up to 38 hours in Low Power Mode
- Outdoor Workout
- Up to 10 hours outdoor workout
- Quick Charge Sleep
- 5 minutes for up to 10 hours of sleep tracking
- Quick Charge Normal Use
- 15 minutes for up to 12 hours of normal use
This Configuration
- Band
- Navy Blue Sport Band
- Color
- Space Gray/Navy Blue
- Band Size
- S/M
- Connectivity
- GPS + Cellular
- Configuration Name
- Apple Watch Series 12 GPS + Cellular, 42mm Space Gray Aluminum Case with Navy Blue Sport Band - S/M
Health And Wellness
- Details
- Readiness, Vitals, Blood Oxygen, ECG, Heart Rate, heart rate notifications, Recovery HRV, background heart rate tracking, irregular rhythm notifications, Advanced Cycle Tracking, Medications, Mindfulness, Noise, Sleep with stages, sleep score, sleep apnea notifications, hypertension notifications
- Heart Rate Sampling
- Heart rate every 5 seconds; HRV as often as every 5 minutes
Material And Finish
- Ceramic Case
- Pearl White, Night Blue
- Aluminum Case
- Dark Bronze, Light Gold, Black, Space Gray
- Titanium Case
- Radiant Gold, Natural
Hardware And Buttons
- Details
- Digital Crown, microphone with Voice Isolation, side button, band release button, speaker, Health Sensing System
Size And Weight 42mm
- Width
- 37 mm
- Wrist Fit
- Fits 130–200mm wrists
- Display Area
- 970 sq mm display area
- Depth Ceramic
- 9.85 mm (ceramic)
- Height Ceramic
- 43 mm (ceramic)
- Weight Titanium
- 36.5 grams (titanium)
- Display Resolution
- 374 by 446 pixels
- Weight Aluminum GPS
- 32.2 grams (aluminum, GPS)
- Depth Aluminum Titanium
- 9.7 mm (aluminum, titanium)
- Height Aluminum Titanium
- 42 mm (aluminum, titanium)
- Weight Night Blue Ceramic
- 42.8 grams (Night Blue ceramic)
- Weight Pearl White Ceramic
- 41.7 grams (Pearl White ceramic)
- Weight Aluminum GPS Cellular
- 31.5 grams (aluminum, GPS + Cellular)
Size And Weight 46mm
- Wrist Fit
- Fits 140–245mm wrists
- Display Area
- 1196 sq mm display area
- Depth Ceramic
- 9.85 mm (ceramic)
- Width Ceramic
- 41 mm (ceramic)
- Height Ceramic
- 47 mm (ceramic)
- Weight Titanium
- 44.9 grams (titanium)
- Display Resolution
- 416 by 496 pixels
- Weight Aluminum GPS
- 39.5 grams (aluminum, GPS)
- Depth Aluminum Titanium
- 9.7 mm (aluminum, titanium)
- Width Aluminum Titanium
- 40 mm (aluminum, titanium)
- Height Aluminum Titanium
- 46 mm (aluminum, titanium)
- Weight Night Blue Ceramic
- 52.9 grams (Night Blue ceramic)
- Weight Pearl White Ceramic
- 51.3 grams (Pearl White ceramic)
- Weight Aluminum GPS Cellular
- 38.6 grams (aluminum, GPS + Cellular)
Workouts And Activity
- Hiking
- Compass, custom and automatic waypoints, Backtrack, offline maps with custom routes, U.S. topographic maps and curated hikes
- Cycling
- Speed/elevation/distance, Bluetooth cycling accessories, FTP, Power Zones, cadence, Live Activity on iPhone
- Running
- Custom workouts, Training Load, Heart Rate Zones, VO2 max, Race Route, Pacer, running form metrics and Running Power, automatic track detection, multisport, alerts
- Swimming
- Pool and open water, pool custom workouts, splits, SWOLF, stroke and kickboard detection, pace, distance, laps
- More Workouts
- Skiing, snowboarding, rowing, paddling, golf, HIIT, yoga, strength, Pilates, wheelchair, multisport and more
Environmental Requirements
- Relative Humidity
- 5% to 90% noncondensing
- Operating Altitude
- 0 to 10,000 feet (0m to 3000m)
- Operating Temperature
- 32° to 95° F (0° to 35° C)
- Nonoperating Storage Temperature
- –4° to 113° F (–20° to 45° C)
Questions buyers ask
Does Apple Watch Series 12 GPS + Cellular support 5G?
Yes. It supports 5G via RedCap and LTE across the listed NR and LTE bands, with international roaming.
How often does it measure heart rate?
Series 12 takes background heart rate readings every five seconds and measures HRV as often as every five minutes.
What is the battery life?
Up to 24 hours of normal use and up to 38 hours in Low Power Mode. It charges to about 80% in 30 minutes.
Which iPhone is required?
iPhone 11 or later, including iPhone SE (2nd generation or later), running iOS 27 or later.
Can I swim with it?
Yes. It is water resistant to 50m (swimproof) under ISO 22810:2010 and tracks pool and open water swims.
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