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AppleSmartwatches
Apple Watch SE 3 GPS + Cellular 40mm Starlight Aluminum Case with Sand Sport Band - S/M
5G RedCapMPN MJLC4LW/A
- 40 mm
$314.72
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Datasheets & documents
Overview
Apple Watch SE 3 GPS + Cellular in a 40mm Starlight aluminum case with a Sand Sport Band in size S/M (MJLC4LW/A). A 5G RedCap and LTE modem lets you call, message and stream without your iPhone nearby. The watch runs on the S10 chip with 64GB of storage and has an Always-On Retina display rated at up to 1000 nits. It includes sleep score, Vitals, sleep apnea notifications, Crash Detection and Fall Detection, and is water resistant to 50m.
- 5G RedCap and LTE cellular with international roaming
- S10 chip with 64-bit dual-core processor, 4-core Neural Engine and 64GB capacity
- Always-On Retina display (OLED, LTPO) with up to 1000 nits and Tough Ion-X glass with 4x crack resistance
- Sleep score, Vitals app, sleep apnea notifications and heart rate notifications
- Crash Detection, Fall Detection, Emergency SOS and international emergency calling
- Up to 18 hours of battery life (32 hours in Low Power Mode) with fast charging
- Water resistance to 50m (swimproof)
- Stay reachable without your iPhone: the 5G RedCap/LTE modem handles calls, messages and music on its own
Apple Watch SE 3 GPS + Cellular is Apple's most accessible cellular watch. It suits anyone who wants to stay reachable and safe away from their iPhone, including field staff, runners, hikers and family members. This configuration pairs a 40mm Starlight aluminum case with a Sand Sport Band in size S/M. The case is made from 100% recycled aluminum, measures 40 x 34 x 10.7mm and weighs 26.4 grams.
The cellular modem supports RedCap for 5G and LTE, with international roaming and support for Apple Watch For Your Kids. The watch also has 2.4GHz Wi-Fi 4, Bluetooth 5.3 and L1 GPS with GLONASS, Galileo, QZSS and BeiDou. Inside is the S10 chip with a 64-bit dual-core processor, a 4-core Neural Engine and 64GB of capacity. Siri runs with on-device processing, and double tap and wrist flick gestures let you control the watch with one hand. The Always-On Retina display uses OLED and LTPO and ranges from 2 nits to 1000 nits. It sits behind Tough Ion-X glass with 4x crack resistance.
For health, the watch provides sleep score and sleep stages, the Vitals app and sleep apnea notifications. It also offers the Heart Rate app with high, low and irregular rhythm notifications, Cycle Tracking with retrospective ovulation estimates, and the Medications, Mindfulness and Noise apps. For safety, it includes Emergency SOS, international emergency calling, Crash Detection, Fall Detection and Backtrack.
Battery life is rated at up to 18 hours of normal use, or up to 32 hours in Low Power Mode. Fast charging reaches about 80% in 45 minutes. The watch is water resistant to 50m and requires iPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 26 or later.
Ideal for
- Staying reachable on runs, hikes and swims without carrying an iPhone
- Lone-worker and field-staff safety with Fall Detection, Crash Detection and Emergency SOS
- Family members or kids set up through Apple Watch For Your Kids
- Sleep, heart and cycle tracking for everyday health insight
- Travel with international roaming and international emergency calling
Specifications
Chip
- Details
- Chip: S10 with 64-bit dual-core processor; 4-core Neural Engine; 64GB capacity
- Storage
- Capacity: 64GB
Audio
- Details
- Audio: Speaker; Microphone; Media playback
Safety
- Details
- Safety: Emergency SOS; International emergency calling; Crash Detection; Fall Detection; Noise monitoring; Backtrack
Display
- Type
- Display: Always-On Retina with OLED and LTPO
- Glass
- Tough Ion-X with 4x crack resistance
- Pixel Density
- 326 pixels per inch
- Peak Brightness
- Up to 1000 nits
- Minimum Brightness
- 2 nits
General
- MPN
- Apple Part Number: MJLC4LW/A
- UPC
- 195951260167
- Brand
- Apple
- Color
- Starlight/Sand
- Model
- Apple Watch SE 3
- Band Size
- S/M
- Case Size
- 40mm
- Connectivity
- GPS + Cellular
- Configuration
- Apple Watch SE 3 GPS + Cellular, 40mm Starlight Aluminum Case with Sand Sport Band - S/M
Sensors
- Details
- Sensors: Second-generation optical heart sensor; Temperature sensor; Compass; Always-on altimeter; High-g accelerometer; High dynamic range gyroscope; Ambient light sensor
Cellular
- 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
- Cellular Features
- Apple Watch For Your Kids; International roaming
- Cellular Technology
- Supports RedCap for 5G and LTE (Models A3326 and A3328)
Controls
- Details
- Controls: Digital Crown with haptic feedback; Side button; Double tap and wrist flick gestures; Siri with on-device processing
Durability
- Water Resistance
- 50m (swimproof)
Environment
- Waste
- Zero Waste Program final assembly
- Energy
- 100% renewable manufacturing electricity; meets CEC battery charger standards
- Packaging
- 100% fiber-based
- Recycled Content
- 40% overall, including 100% recycled aluminum case
Connectivity
- GPS
- L1 GPS (GLONASS, Galileo, QZSS, BeiDou)
- Wi-Fi
- Wi-Fi 4 (802.11n), 2.4GHz networks
- Other
- Apple Pay; GymKit
- Bluetooth
- 5.3
Accessibility
- Features
- Accessibility: VoiceOver; Zoom; On/Off Labels; Reduce Transparency; Increase Contrast; Color Filters; Text Size; Bold Text; Reduce Motion; Hourly Chimes; AssistiveTouch; Button Click Speed; Touch Accommodations; Auto-Answer Calls; Type to Siri; RTT; Audio Volume Balance; Auto Transcription; Live Speech; Accessibility Shortcut; Mono Audio; Taptic Time; Personal Voice; Live Listen
Compatibility
- Iphone
- Compatibility: iPhone 11 or later, incl. iPhone SE (2nd gen or later), with iOS 26 or later
- Operating System
- watchOS
Size And Weight
- Depth 40mm
- 40mm Depth: 10.7mm
- Depth 44mm
- 44mm Depth: 10.7mm
- Width 40mm
- 40mm Width: 34mm
- Width 44mm
- 44mm Width: 38mm
- Height 40mm
- 40mm Height: 40mm
- Height 44mm
- 44mm Height: 44mm
- Display 40mm
- 324 by 394 pixels; 759 sq mm display area; Fits 130–200mm wrists
- Display 44mm
- 368 by 448 pixels; 977 sq mm display area; Fits 140–245mm wrists
- Shipping Weight
- 0.60 lbs
- Weight GPS 40mm
- 40mm Weight (GPS): 26.3 grams
- Weight GPS 44mm
- 44mm Weight (GPS): 32.9 grams
- Weight GPS Cellular 40mm
- 40mm Weight (GPS + Cellular): 26.4 grams
- Weight GPS Cellular 44mm
- 44mm Weight (GPS + Cellular): 33.0 grams
Power And Battery
- Fast Charge
- Up to 80% in about 45 min; 15 min for up to 8 hr normal use; 8 min for up to 8 hr sleep tracking
- Battery Life
- Up to 18 hours of normal use
- Battery Type
- Built-in rechargeable lithium-ion
- Low Power Mode
- Up to 32 hours
Health And Wellness
- Details
- Health: Cycle Tracking with retrospective ovulation estimates; Heart Rate app; High/low heart rate notifications; Irregular rhythm notifications; Medications; Mindfulness; Noise; Sleep app with sleep stages; Sleep score; Sleep apnea notifications
Material And Finish
- Aluminum Case Colors
- Starlight; Midnight
Hardware And Buttons
- Details
- Hardware: Digital Crown; Microphone; Side button; Speaker/air vent; Optical heart sensor
Workouts And Activity
- Hiking
- Compass with bearing, incline, elevation and coordinates; Custom and automatic waypoints; Backtrack; Offline maps with custom routes; Topographic park maps (U.S. only); Curated hikes across all 63 U.S. national parks
- Cycling
- Average speed, elevation gained, distance; Bluetooth cycling accessories; Functional Threshold Power; Power Zones; Cadence; Live Activity on iPhone
- Running
- Custom workouts; Workout Views; Training Load; Heart Rate Zones; Race Route; Pacer; Stride Length, Ground Contact Time, Vertical Oscillation; Automatic track detection; Multisport
- Swimming
- Pool or open water; Custom pool workouts; Splits and auto sets; SWOLF; Automatic stroke detection; Kickboard detection; Pace, distance and laps
- More Workouts
- Skiing; Snowboarding; Outdoor Rowing; Paddling; Golf; Walk; Elliptical; Rower; Stair Stepper; HIIT; Yoga; Functional Strength Training; Dance; Cooldown; Core Training; Pilates; Tai Chi; Wheelchair; Kickboxing; Multisport; Other
Environmental Requirements
- Relative Humidity
- 5% to 90% noncondensing
- Operating Altitude
- 0 to 10,000 feet (0 to 3000 m)
- Storage Temperature
- –4° to 113° F (–20° to 45° C)
- Operating Temperature
- 32° to 95° F (0° to 35° C)
Questions buyers ask
Does this Apple Watch SE 3 work without my iPhone nearby?
Yes. This is the GPS + Cellular model, with a modem that supports RedCap for 5G and LTE. With cellular service active on the watch, you can make calls, send messages and stream music while your iPhone is elsewhere.
Which iPhones are compatible?
Apple Watch SE 3 requires iPhone 11 or later, including iPhone SE (2nd generation or later), running iOS 26 or later.
How long does the battery last?
Up to 18 hours of normal use, or up to 32 hours in Low Power Mode. Fast charging reaches about 80% in 45 minutes, and 15 minutes of charging gives up to 8 hours of normal use.
Can I swim with it?
Yes. Apple Watch SE 3 is water resistant to 50m (swimproof). It tracks pool and open water swims with stroke detection, SWOLF score, and splits and auto sets.
What band size is included?
This configuration comes with a Sand Sport Band in size S/M, paired with the 40mm Starlight aluminum case.
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