Apple Watch SE 3 – Essential Health & Fitness Smartwatch with 100% Official Specs
Discover the versatile and value-packed smartwatch with the Apple Watch SE 3 – a device strictly adhering to official configurations, blending essential health tracking, reliable fitness features, and everyday connectivity. Tailored for users seeking accessible smartwatch technology without compromising core functionality, it delivers all-day battery life, durable design, and safety-focused tools, fully aligning with Apple’s official product definition.
🔹 Core Selling Points (100% Matched with Official Specs)
• Always-On Retina Display with LTPO & OLED technology | 4x crack-resistant Ion-X glass
• Advanced Health Tracking: Wrist temperature sensing, sleep score, sleep apnea notifications
• All-Day Battery Life: Up to 18 hours of normal use | Fast charging support
• S10 Chip with 64-bit dual-core processor & 4-core Neural Engine | 64GB storage
• 50m Water Resistance (swimproof) | GPS + optional Cellular (5G RedCap support)
• Safety Features: Crash Detection, Fall Detection, Emergency SOS, Backtrack
• 100+ Workout Modes | Apple Intelligence-powered fitness motivation
Design & Dimensions (Strictly Official Data)
• Case Material: 100% recycled aluminum
• Color Options (Official Names):
- Starlight (matte finish)
- Midnight (matte finish)
• Size Variants:
- 44mm Model:
- Height: 44mm | Width: 38mm | Depth: 10.7mm
- Weight (GPS): 32.9 grams | Weight (GPS + Cellular): 33.0 grams
- Fits 140–245mm wrists
- 40mm Model:
- Height: 40mm | Width: 34mm | Depth: 10.7mm
- Weight (GPS): 26.3 grams | Weight (GPS + Cellular): 26.4 grams
- Fits 130–200mm wrists
• Band Compatibility: Wide range of interchangeable bands in various colors, styles, and materials
Note: Actual size/weight may vary by manufacturing process and measurement method.
Craft Details (Official Description):
• Front: Always-On Retina display with Ion-X front glass (4x more crack-resistant than Apple Watch SE 2)
• Buttons & Controls: Digital Crown with haptic feedback, Side button
• Audio: Built-in speaker (media playback support) & microphone (calls, dictation)
• Sensors Placement: Optical heart sensor, temperature sensor, and motion sensors integrated in the rear case
Display – Bright & Durable (1:1 Official Specs)
• Size: 44mm model – 977 sq mm display area; 40mm model – 759 sq mm display area
• Resolution: 44mm model – 368 × 448 pixels; 40mm model – 324 × 394 pixels
• PPI: 326 pixels per inch
• Display Technology: Always-On Retina display, OLED, LTPO
• Brightness:
- Peak Brightness: Up to 1000 nits
- Minimum Brightness: 2 nits
• Key Features:
- 4x crack-resistant Ion-X glass
- Responsive touch interface
- Compatible with customizable watch faces
Health & Wellness Features (Full Official List)
• Core Health Sensors:
- Second-generation optical heart sensor
- Wrist temperature sensor
- High-g accelerometer
- High dynamic range gyroscope
- Ambient light sensor
- Compass
- Always-on altimeter
• Health Tracking Functions:
- Cycle Tracking app with retrospective ovulation estimates
- Heart Rate app (real-time monitoring)
- High and low heart rate notifications
- Irregular rhythm notifications
- Medications app (medication reminders)
- Mindfulness app (breathing exercises)
- Noise app (noise level monitoring)
- Sleep app (includes sleep stages tracking)
- Sleep score (daily sleep quality assessment)
- Sleep apnea notifications (for 18+ years old without diagnosis)
- Vitals app (aggregates overnight health data: heart rate, respiratory rate, wrist temperature, sleep duration)
• Health Data Management:
- Integration with Apple Health app (centralized health data storage)
- Interactive charts and trend analysis
- Abnormal metric notifications
Note: Sleep apnea notifications are intended to detect signs of moderate to severe sleep apnea and are not a medical diagnosis. This product is not a medical device.
Fitness & Workout Capabilities (Official Specs)
• 100+ Built-in Workout Modes, including:
- Running (custom workouts, training load, heart rate zones, race route, pacer, stride length tracking)
- Hiking (compass, incline/elevation tracking, backtrack, offline maps, topographic maps for U.S. parks)
- Cycling (average speed, elevation gained, cadence, functional threshold power)
- Swimming (pool/open water, SWOLF score, automatic stroke detection, kickboard detection)
- 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
• Fitness Enhancements:
- Activity Rings (track move, exercise, stand goals)
- Workout Buddy (personalized audible motivation via Apple Intelligence)
- Apple Music integration (workout playlists)
- Customizable Workout Views
- Automatic track detection (for running)
- Live Activity on iPhone integration
- GymKit compatibility
Safety & Emergency Features (Official List)
• Emergency SOS (press and hold side button to call emergency services)
• International emergency calling (GPS + Cellular models)
• Crash Detection (automatic emergency call and location sharing after severe car crash)
• Fall Detection (automatic emergency response after hard fall)
• Backtrack (GPS path recording for off-grid navigation)
• Check-in feature (automatic destination arrival notifications)
• Medical ID (emergency access to critical medical information)
• Noise monitoring (protects hearing from loud environments)
Performance & Storage (Official Configurations)
• Chip: S10 chip
- 64-bit dual-core processor
- 4-core Neural Engine
- On-device Siri processing (no Wi-Fi/cellular required)
• Storage: 64GB capacity
• Gesture Controls:
- Double tap (answer calls, respond to messages, scroll)
- Wrist flick (dismiss notifications)
• Accessibility Features:
- VoiceOver, Zoom, On/Off Labels, Reduce Transparency
- Increase Contrast, Color Filters, Text Size adjustment
- Bold Text, Reduce Motion, Hourly Chimes
- AssistiveTouch, Button Click Speed adjustment
- Touch Accommodations, Auto-Answer Calls
- Type to Siri, RTT Support, Audio Volume Balance
- Auto Transcription, Live Speech, Accessibility Shortcut
- Mono Audio, Taptic Time, Personal Voice, Live Listen
Battery & Charging (100% Official Data)
• Battery Type: Built-in rechargeable lithium-ion battery
• Battery Life:
- Normal Use: Up to 18 hours
- Low Power Mode: Up to 32 hours
- 15-minute fast charge: Up to 8 hours of normal use
- 8-minute fast charge: Up to 8 hours of sleep tracking
• Charging Specifications:
- Fast-charge capable
- Up to 80% charge in about 45 minutes (with compatible adapter)
- Charging Method: Apple Watch Magnetic Fast Charger to USB-C Cable
• Recommended Adapter: Apple 20W USB-C Power Adapter (sold separately)
Note: Battery life varies by use, configuration, cellular network, signal strength, and environmental factors. Testing conducted with preproduction devices and prerelease software.
Connectivity & Compatibility (Official Details)
• All Models:
- Wi-Fi 4 (802.11n) 2.4GHz
- Bluetooth 5.3
- L1 GPS (supports GLONASS, Galileo, QZSS, and BeiDou)
- Apple Pay (contactless payments)
- GymKit
• GPS + Cellular Models (A3326 and A3328):
- 5G RedCap support
- LTE support
- 5G NR Bands: FDD (n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n66, n71); TDD (n38, n40, n41)
- LTE Bands: FDD (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 66, 71); TDD (38, 39, 40, 41)
- International roaming
- Support for Apple Watch For Your Kids
• Device Compatibility:
- iPhone 11 or later (including iPhone SE 2nd generation or later)
- Requires iOS 26 or later
• Additional Connectivity Features:
- Ping My iPhone (locate paired iPhone)
- Turn-by-turn navigation with haptic feedback
- AirPods integration
- Smart Stack (contextual app suggestions)
- Live translation (via Apple Intelligence on paired iPhone)
- Messages and call synchronization
- Wallet app integration (transit cards, boarding passes, home key, car key)
Durability & Environmental Requirements
• Water Resistance: 50 meters (ISO standard 22810:2010) – suitable for swimming, splashing, surfing; not for scuba diving or high-velocity water activities
• Operating Temperature: 32° to 95° F (0° to 35° C)
• Nonoperating Storage Temperature: –4° to 113° F (–20° to 45° C)
• Relative Humidity: 5% to 90% noncondensing
• Operating Altitude: 0 feet to 10,000 feet (0m to 3000m)
Note: Water resistance is not permanent and may diminish over time.
Environmental Commitments (Official Data)
• Materials: 40% recycled content by weight, including:
- 100% recycled aluminum case
- 100% recycled cobalt and 95% recycled lithium in battery
- 100% recycled rare earth elements in all magnets
- 100% recycled gold plating and tin solder in Apple-designed PCBs
- 100% recycled tungsten in Taptic Engine
- 40% recycled glass in display glass
• Energy:
- 100% renewable electricity for manufacturing
- 100% low-carbon electricity matched to expected customer energy use
- Meets California Energy Commission’s energy efficiency standards
• Packaging:
- 100% fiber-based packaging
- Compact design enabling 40% more units per shipping trip (vs. Apple Watch SE)
• Waste Reduction:
- No final assembly sites generate landfill waste (Apple’s Zero Waste Program)
- Compliant with Apple’s Regulated Substances Specification
In the Box (Official Packaging List)
• Apple Watch SE 3 (aluminum case)
Function Support Limitations
• Regional Limitations:
- Topographic maps and curated hikes limited to U.S. national parks
- Apple Pay availability varies by market
- 5G/LTE coverage depends on carrier and region
• Feature Restrictions:
- Cellular features require wireless service plan
- Not all features available with Apple Watch For Your Kids setup
- Sleep apnea notifications not intended for users under 18 or those with existing diagnosis
- No ECG app or blood oxygen app (available on higher-tier Apple Watch models)
- No hypertension notifications (available on Apple Watch Series 11)