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Apple Watch SE 3
- S10 Chip with 64-bit Dual-Core Processor
- Always-On Retina OLED Display (1000 Nits)
- Double Tap & Wrist Flick Gestures
- Ion-X Glass with 4x Crack Resistance
- Up to 18 Hours Normal Battery Life
- Fast Charging (80% in 45 Minutes)
- Wrist Temperature Sensor
- Sleep Apnea & Irregular Rhythm Notifications
- Crash Detection & Fall Detection
- 50m Swimproof Water Resistance
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Apple Watch SE 3 Highlights
- Up to 18 hours per charge
- 1,000 nits peak brightness
- 26.3 g weight
- Apple Watch a watch that pairs with an iPhone
- 64GB storage
- S10 processor
Compare Apple Watch SE 3 with Similar Products
Compare Apple Watch SE 3 specs, features and price with similar smartwatches and alternatives.
Comparison full
0 spaces availableIdentity & design
| Specification | Apple Watch SE 3 | Google Pixel Watch 3 | WHOOP Peak 5.0 Sensor | WHOOP ONE 5.0 Sensor |
|---|---|---|---|---|
| Brand | Apple | WHOOP | WHOOP | |
| Model | Apple Watch SE 3 | Google Pixel Watch 3 | WHOOP Peak 5.0 Sensor | WHOOP ONE 5.0 Sensor |
| Announced | 2025, September 09 | 2024, August 13 | Not specified | Not specified |
| Dimensions | 40mm: 40 × 34 × 10.7 mm; 44mm: 44 × 38 × 10.7 mm | 41 mm or 45 mm diameter × 12.3 mm height | 34.7 × 24 × 10.6 mm | 34.7 × 24 × 10.6 mm |
| Weight | 40mm: GPS 26.3 g, GPS + Cellular 26.4 g; 44mm: GPS 32.9 g, GPS + Cellular 33.0 g | 41 mm: 31 g; 45 mm: 37 g, without band | Approximately 26.5 g | Approximately 26.5 g |
| Build materials | Aluminum case | Aluminum case | Sensor housing with stainless-steel components; LED indicators | Sensor housing with stainless-steel components; LED indicators |
| Wrist size | 40mm: 130–200 mm; 44mm: 140–245 mm | 41 mm: small 130–175 mm, large 165–210 mm; 45 mm: small 150–185 mm, large 165–215 mm | Not specified | Not specified |
| Controls / buttons | Digital Crown with haptic feedback; side button | Rotating haptic crown, side button, and touchscreen | Not specified | Not specified |
| Strap / band | Not specified | Active Band; fluoroelastomer | SuperKnit Obsidian | CoreKnit Jet Black |
Display
| Specification | Apple Watch SE 3 | Google Pixel Watch 3 | WHOOP Peak 5.0 Sensor | WHOOP ONE 5.0 Sensor |
|---|---|---|---|---|
| Display | Always-On Retina LTPO OLED | 41 mm: 1.2-inch; 45 mm: 1.4-inch Actua LTPO AMOLED | Screenless tracker | Screenless tracker |
| Screen resolution | 40mm: 324 × 394 pixels; 44mm: 368 × 448 pixels | 41 mm: 408 × 408; 45 mm: 456 × 456 pixels; 320 ppi | Not applicable | Not applicable |
| Display protection | Ion-X glass | 3D Corning Gorilla Glass 5 | Not applicable | Not applicable |
| Display features | 1000 nits (peak) | Always-on display; 1–60 Hz; DCI-P3 colour | Not specified | Not specified |
Performance & software
| Specification | Apple Watch SE 3 | Google Pixel Watch 3 | WHOOP Peak 5.0 Sensor | WHOOP ONE 5.0 Sensor |
|---|---|---|---|---|
| Processor | Apple S10; 4-core Neural Engine | Qualcomm Snapdragon W5 Gen 1; Cortex-M33 coprocessor | Not specified | Not specified |
| CPU | 64-bit dual-core | Not specified | Not specified | Not specified |
| GPU | PowerVR | Not specified | Not specified | Not specified |
| Storage | 64 GB | 32 GB eMMC | Not specified | Not specified |
| Operating system | watchOS 26, upgradable to watchOS 27 | Wear OS 5 | Not specified | Not specified |
| RAM | Not specified | 2 GB SDRAM | Not specified | Not specified |
Connectivity
| Specification | Apple Watch SE 3 | Google Pixel Watch 3 | WHOOP Peak 5.0 Sensor | WHOOP ONE 5.0 Sensor |
|---|---|---|---|---|
| Network / cellular | GSM / HSPA / LTE / 5G | LTE and UMTS on cellular editions | Not specified | Not specified |
| SIM / eSIM | eSIM | LTE edition: eSIM | Not specified | Not specified |
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11a/b/g/n/ac/ax; 2.4 GHz + 5 GHz | Not specified | Not specified |
| Bluetooth | 5.3, A2DP, LE | Bluetooth 5.3 | Not specified | Not specified |
| NFC | Supported; Apple Pay | Supported | Not specified | Not specified |
| Positioning / GNSS | GPS, GLONASS, GALILEO, QZSS | GPS; Galileo; GLONASS; BeiDou; QZSS | Connected smartphone GPS; no built-in GPS | Connected smartphone GPS; no built-in GPS |
| Ultra Wideband (UWB) | Not specified | Supported | Not specified | Not specified |
Audio & communication
| Specification | Apple Watch SE 3 | Google Pixel Watch 3 | WHOOP Peak 5.0 Sensor | WHOOP ONE 5.0 Sensor |
|---|---|---|---|---|
| Speaker | Supported | Supported | Not specified | Not specified |
| Microphone | Supported | Supported | Not specified | Not specified |
| Calling | Bluetooth calling; cellular calling on GPS + Cellular models | Bluetooth or LTE calling depending on model and carrier | Not specified | Not specified |
Sensors, health & fitness
| Specification | Apple Watch SE 3 | Google Pixel Watch 3 | WHOOP Peak 5.0 Sensor | WHOOP ONE 5.0 Sensor |
|---|---|---|---|---|
| Sensors | Second-generation optical heart sensor; temperature sensor; compass; always-on altimeter; high-g accelerometer; high-dynamic-range gyroscope; ambient light sensor | Compass; altimeter; red and infrared SpO₂ sensors; electrical ECG sensors; multipath optical heart-rate sensor; accelerometer; gyroscope; ambient-light sensor; cEDA skin-conductance sensor; skin-temperature sensor; barometer; magnetometer | PPG heart-rate sensor; accelerometer; skin-temperature sensor | PPG heart-rate sensor; accelerometer; skin-temperature sensor |
| Health & wellness features | High and low heart-rate notifications; irregular rhythm notifications; temperature sensing; cycle tracking; mindfulness and medications apps | Continuous heart rate; ECG; SpO₂; skin temperature; stress tracking; cEDA | Continuous heart rate; HRV; respiratory rate; skin temperature; Recovery; Strain; Healthspan; Health Monitor; Stress Monitor | Continuous heart rate; HRV; respiratory rate; skin temperature; Recovery; Strain |
| Sleep tracking | Sleep duration and sleep stages | Sleep stages; sleep score; overnight health metrics | Light, REM and deep sleep; duration; performance; consistency; sleep need | Light, REM and deep sleep; duration; performance; consistency; sleep need |
| Sports / workout modes | Workout app with multiple workout types and automatic workout detection | More than 40 exercise modes with running insights | Automatic and manual activity tracking | Automatic and manual activity tracking |
| Training & outdoor features | Pace and heart-rate zones; compass waypoints and backtrack | Cardio load, target load, readiness, running form and GPS route tracking | Not specified | Not specified |
| Safety & emergency features | Emergency SOS; international emergency calling; Fall Detection; Crash Detection | Emergency SOS; fall detection; safety check | Not specified | Not specified |
Battery & durability
| Specification | Apple Watch SE 3 | Google Pixel Watch 3 | WHOOP Peak 5.0 Sensor | WHOOP ONE 5.0 Sensor |
|---|---|---|---|---|
| Battery life | Up to 18 hours normal use; 32 hours Low Power Mode; 7 hours outdoor workout | Up to 24 hours with always-on display; 36 hours Battery Saver | Up to 14+ days | Up to 14+ days |
| Charging | Magnetic fast charging | USB-C magnetic pin charging | Wireless PowerPack; compatible with USB-C Basic Charger | USB-C Basic Charger; compatible with Wireless PowerPack |
| Water resistance | 50 m; swimproof | 5 ATM; IP68 | IP68; up to 10 m for 2 hours | IP68; up to 10 m for 2 hours |
| Battery capacity | Not specified | 41 mm: 307 mAh; 45 mm: 420 mAh | Not specified | Not specified |
| Durability / certifications | Not specified | IP68-rated dust and water resistance | Not specified | Not specified |
Compatibility
| Specification | Apple Watch SE 3 | Google Pixel Watch 3 | WHOOP Peak 5.0 Sensor | WHOOP ONE 5.0 Sensor |
|---|---|---|---|---|
| Phone compatibility | iPhone 11 or later, including iPhone SE (2nd generation or later); iOS 26 or later | Android 10 or later; Google account | iOS 18 or later recommended; Android 11 or later recommended | iOS 18 or later recommended; Android 11 or later recommended |
| Companion app | Apple Watch app on iPhone | Google Pixel Watch; Fitbit | WHOOP with Peak membership | WHOOP with One membership |
| Colors | Midnight, Starlight | 41 mm: Obsidian, Porcelain, Hazel, Rose Quartz; 45 mm: Obsidian, Porcelain, Hazel | Not specified | Not specified |
Additional specifications
| Specification | Apple Watch SE 3 | Google Pixel Watch 3 | WHOOP Peak 5.0 Sensor | WHOOP ONE 5.0 Sensor |
|---|---|---|---|---|
| Pixels per inch | 326 ppi | 320 ppi | Not specified | Not specified |
| Peak brightness | Up to 1,000 nits | 2,000 nits peak; 1 nit minimum | Not specified | Not specified |
| Cover / touchscreen | Supported | Not specified | Not specified | Not specified |
| Charging time | About 45 minutes to 80% | 41 mm: 24/35/60 minutes to 50/80/100%; 45 mm: 28/50/80 minutes | Approximately 120 minutes | Approximately 120 minutes |
| Release status | Available. Released 2025, September 19 | Available. Released 2024, September 10 | Not specified | Not specified |
| Model numbers | A3325, A3324, A3328, A3326, A3327, A3329, A3391, A3392 | Not specified | Not specified | Not specified |
| Card slot | No | No | Not specified | Not specified |
| Camera | No | No | Not specified | Not specified |
| 3.5 mm headphone jack | No | No | Not specified | Not specified |
| USB | No | No | Not specified | Not specified |
| Radio | No | No | Not specified | Not specified |
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | Not specified | Not specified |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK; HSDPA 850 / 1700(AWS) / 1900 / 2100 - USA, LATAM, Canada | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | Not specified | Not specified |
| 4G bands | 1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK; 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada | LTE | Not specified | Not specified |
| 5G bands | SA/NSA | Not specified | Not specified | Not specified |
| Network speed | HSPA, LTE, 5G | HSPA, LTE | Not specified | Not specified |
| SAR (US) | 1.18 W/kg (head) | Not specified | Not specified | Not specified |
| SAR (EU) | 0.42 W/kg (head) | Not specified | Not specified | Not specified |
| Additional hardware features | Media playback | Not specified | Not specified | Not specified |
| Battery type | Rechargeable lithium-ion | Not specified | Not specified | Not specified |
| Case material | Not specified | 100% recycled aluminum | Not specified | Not specified |
| Packing list | Not specified | Watch; small and large bands; charging dock or cable; quick start guide | WHOOP 5.0; SuperKnit Obsidian band; Wireless PowerPack | WHOOP 5.0; CoreKnit Jet Black band; Basic Charger |
| Third-party fitness apps | Not specified | Google Play apps; Google Maps; Google Wallet; Google Assistant | Not specified | Not specified |
| Movement sensors | Not specified | Not specified | Accelerometer | Accelerometer |
| Bluetooth and Wi-Fi | Not specified | Not specified | Bluetooth | Bluetooth |
| Smart recognition | Not specified | Not specified | Automatic activity detection | Automatic activity detection |
| Energy, load and readiness features | Not specified | Not specified | Recovery; Strain; Sleep scores; personalized coaching | Recovery; Strain; Sleep scores; personalized coaching |
| strap material | Not specified | Not specified | Not specified | CoreKnit |
| temperature monitoring | Not specified | Not specified | Not specified | Skin-temperature tracking |
| Included membership tier | Not specified | Not specified | Not specified | WHOOP One, 12-month subscription bundle as listed |
Specs
Apple Watch SE 3 specifications
Identity & design
| Brand | Apple |
|---|---|
| Model | Apple Watch SE 3 |
| Announced | 2025, September 09 |
| Dimensions | 40mm: 40 × 34 × 10.7 mm; 44mm: 44 × 38 × 10.7 mm |
| Weight | 40mm: GPS 26.3 g, GPS + Cellular 26.4 g; 44mm: GPS 32.9 g, GPS + Cellular 33.0 g |
| Build materials | Aluminum case |
| Wrist size | 40mm: 130–200 mm; 44mm: 140–245 mm |
| Controls / buttons | Digital Crown with haptic feedback; side button |
Display
| Display | Always-On Retina LTPO OLED |
|---|---|
| Screen resolution | 40mm: 324 × 394 pixels; 44mm: 368 × 448 pixels |
| Display protection | Ion-X glass |
| Display features | 1000 nits (peak) |
| Pixels per inch | 326 ppi |
| Peak brightness | Up to 1,000 nits |
| Cover / touchscreen | Supported |
Performance & software
| Processor | Apple S10; 4-core Neural Engine |
|---|---|
| CPU | 64-bit dual-core |
| GPU | PowerVR |
| Storage | 64 GB |
| Operating system | watchOS 26, upgradable to watchOS 27 |
Connectivity
| Network / cellular | GSM / HSPA / LTE / 5G |
|---|---|
| SIM / eSIM | eSIM |
| Wi-Fi | Wi-Fi 802.11 b/g/n |
| Bluetooth | 5.3, A2DP, LE |
| NFC | Supported; Apple Pay |
| Positioning / GNSS | GPS, GLONASS, GALILEO, QZSS |
| USB | No |
| Radio | No |
| 2G bands | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK; HSDPA 850 / 1700(AWS) / 1900 / 2100 - USA, LATAM, Canada |
| 4G bands | 1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK; 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada |
| 5G bands | SA/NSA |
| Network speed | HSPA, LTE, 5G |
Audio & communication
| Speaker | Supported |
|---|---|
| Microphone | Supported |
| Calling | Bluetooth calling; cellular calling on GPS + Cellular models |
Sensors, health & fitness
| Sensors | Second-generation optical heart sensor; temperature sensor; compass; always-on altimeter; high-g accelerometer; high-dynamic-range gyroscope; ambient light sensor |
|---|---|
| Health & wellness features | High and low heart-rate notifications; irregular rhythm notifications; temperature sensing; cycle tracking; mindfulness and medications apps |
| Sleep tracking | Sleep duration and sleep stages |
| Sports / workout modes | Workout app with multiple workout types and automatic workout detection |
| Training & outdoor features | Pace and heart-rate zones; compass waypoints and backtrack |
| Safety & emergency features | Emergency SOS; international emergency calling; Fall Detection; Crash Detection |
Battery & durability
| Battery life | Up to 18 hours normal use; 32 hours Low Power Mode; 7 hours outdoor workout |
|---|---|
| Charging | Magnetic fast charging |
| Water resistance | 50 m; swimproof |
Compatibility
| Phone compatibility | iPhone 11 or later, including iPhone SE (2nd generation or later); iOS 26 or later |
|---|---|
| Companion app | Apple Watch app on iPhone |
| Colors | Midnight, Starlight |
Battery
| Charging time | About 45 minutes to 80% |
|---|---|
| Battery type | Rechargeable lithium-ion |
General
| Release status | Available. Released 2025, September 19 |
|---|---|
| Model numbers | A3325, A3324, A3328, A3326, A3327, A3329, A3391, A3392 |
Memory & storage
| Card slot | No |
|---|
Cameras
| Camera | No |
|---|
Audio
| 3.5 mm headphone jack | No |
|---|
Regulatory
| SAR (US) | 1.18 W/kg (head) |
|---|---|
| SAR (EU) | 0.42 W/kg (head) |
Features
| Additional hardware features | Media playback |
|---|