Mobile / Smartwatches
AppleSmartwatch
Watch SE 3
Released 19 September 2025.5Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026Availability beginning Friday, September 19 Last checked 23 October 2026.
- Case size
- 40, 44mm
- Platform
- watchOS
- Display type
- LTPO OLED
- Battery life
- 18h
93 of 150 fields known.
At a glance
Weight (case only)
26.3g1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 202640mm GPS 26.3 g, GPS + Cellular 26.4 g. 44mm GPS 32.9 g, GPS + Cellular 33.0 g. Case only3Maker product pagesupport.apple.com/en-us/125094Read 30 September 2026
Lower than 97% of other smartwatches. Lower is better.
General
- Series
- Apple Watch SE1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
- Model numbers
- A3324, A3325, A3326, A3328, A3391, A3392, A3327, A33294Maker product pagesupport.apple.com/en-us/108056Read 30 September 2026GPS 40mm A3324, 44mm A3325. GPS + Cellular 40mm A3326, 44mm A3328 (North America, Europe, Asia Pacific). China mainland A3391, A3392, A3327, A3329
- GTIN / EAN
- Not available
- Announced
- 9 September 20255Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026
- Predecessor
- Apple Watch SE 25Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026Apple calls the Apple Watch SE 3 the next generation of Apple Watch SE.19Reviewtomsguide.com/wellness/smartwatches/apple-watch-se-3-unveiled-cost-release-date-key-features-battery-and-moreRead 23 October 2026Tom's Guide says Apple left the SE alone since 2022 and calls the SE 3 the refreshed Apple Watch SE (3rd generation) after the SE (2nd gen).
- Successor
- Not available
- Launch price (US)
- $2495Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026Pricing and Availability: starting US launch price.
- Launch price (EU)
- €2699Press releaseapple.com/de/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026Pricing and Availability: starting EUR price including German VAT.
- Markets
- US, CA, GB, DE, FR, AU, JP, IN, AE, CN4Maker product pagesupport.apple.com/en-us/108056Read 30 September 20265Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026Pre-order in Australia, Canada, France, Germany, India, Japan, the UAE, the UK, the U.S. and more than 50 other countries and regions
- Colours
- Midnight, Starlight1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20262Maker product pageapple.com/apple-watch-se-3Read 30 September 2026
- Segment
- Smartwatch2Maker product pageapple.com/apple-watch-se-3Read 30 September 2026Listed under Watch on apple.com as the entry smartwatch
- OS updates promised
- Not available
- Security updates until
- Not available
Case
Front and side, drawn to scale.
- Case material
- Aluminium1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
- Case material (as published)
- Aluminum1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
- Case dimensions
- Height40Width34Thickness10.7mm(1.6 × 1.3 × 0.4 in)1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20263Maker product pagesupport.apple.com/en-us/125094Read 30 September 2026
- Weight (case only)
- 26.3g(0.9 oz)1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 202640mm GPS 26.3 g, GPS + Cellular 26.4 g. 44mm GPS 32.9 g, GPS + Cellular 33.0 g. Case only3Maker product pagesupport.apple.com/en-us/125094Read 30 September 2026
- Weight with strap
- Not available
Durability
- Water resistance
- 5ATM1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Water resistance 50 m (swimproof) under ISO 22810:2010
- Water resistance standard
- ISO 22810:20101Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Durability and footnotes.
- Dust and water rating
- Not available
- Dive rating
- Not available
- Max dive depth
- Not available
- MIL-STD-810
- Not available
- MIL-STD-810 tests
- Not available
- Operating temperature
- Min0Max35°C1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
Display
- Display type
- LTPO OLED1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
- Display type (as published)
- Always-On Retina display with OLED and LTPO1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
- Screen size
- Not available
- Resolution
- 324 × 394px1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20263Maker product pagesupport.apple.com/en-us/125094Read 30 September 2026
- Pixel density
- 326ppi1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20263Maker product pagesupport.apple.com/en-us/125094Read 30 September 2026
- Display area
- 759mm²1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20263Maker product pagesupport.apple.com/en-us/125094Read 30 September 2026
- Max refresh rate
- Not available
- Min refresh rate
- Not available
- Peak brightness
- 1,000nits1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20263Maker product pagesupport.apple.com/en-us/125094Read 30 September 2026
- Minimum brightness
- 2nits1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20263Maker product pagesupport.apple.com/en-us/125094Read 30 September 2026
- Always-on display
- Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
- Display cover
- Other glass1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Tough Ion-X front glass with 4x crack resistance
- Display cover (as published)
- Ion-X front glass1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
Platform
- OS at launch
- watchOS 265Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026
- Software
- Not available
- Latest OS
- watchOS 27.0.110Maker product pagesupport.apple.com/en-us/100100Read 30 September 2026Get the latest software updates: latest watchOS is 27.0.1, expanded September 28. SE 3 eligibility is also explicitly confirmed in 9to5Mac September 28 coverage.11Press article9to5mac.com/2026/09/28/watchos-27-0-1-is-now-available-for-all-compatible-apple-watch-modelsRead 30 September 2026Eligible models list explicitly includes Apple Watch SE 3.
- Phone requirement
- iPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 27 or later1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026As listed on 2026-09-28. At launch it was iPhone 11 or later with iOS 26
- Voice assistants
- Siri1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
- Chipset
- Apple S101Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026S10 chip with 64-bit dual core processor, 4-core Neural Engine
- Process
- Not available
- CPU configuration
- Not available
- Max CPU clock
- Not available
- GPU
- Not available
- Low-power coprocessor
- Not available
Memory
- RAM
- Not available
Health sensors
- Heart rate sensor
- Second-generation optical heart sensor1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
- ECG capability
- No2Maker product pageapple.com/apple-watch-se-3Read 30 September 2026Compare section: ECG app not applicable
- Blood oxygen sensing
- No2Maker product pageapple.com/apple-watch-se-3Read 30 September 2026Compare section: Blood Oxygen app not applicable
- Skin temperature sensing
- Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20265Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026Two temperature sensors for wrist temperature sensing
- Blood pressure feature
- None2Maker product pageapple.com/apple-watch-se-3Read 30 September 2026Compare section: Hypertension notifications not applicable
- Body composition sensor
- Not available
- Skin conductance (EDA)
- Not available
- Medical clearances
- Not available
Motion and environment sensors
- Accelerometer range
- Not available
- Barometric altimeter
- Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Sensors: always-on altimeter. A barometric altimeter is confirmed by the GSMArena sensor specification as well.
- Ambient light sensor
- Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
- Depth gauge
- Not available
- Depth gauge range
- Not available
- Water temperature sensor
- Not available
Health and fitness
- Health features
- Heart rate alerts, Irregular rhythm notifications, Heart rate variability, Sleep tracking, Sleep stages, Sleep apnea notifications, Cycle tracking, Temperature-based ovulation, Noise monitoring1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Heart Rate app with high and low heart rate notifications, irregular rhythm notifications, Sleep app including sleep stages, sleep score, sleep apnea notifications, Cycle Tracking with retrospective ovulation estimates, Noise app. HRV from the Apple compare section on the overview page2Maker product pageapple.com/apple-watch-se-3Read 30 September 2026Compare section lists HRV and heart rate tracking. Readiness app not applicable5Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026
- Fitness features
- VO2 max, Training load, Running dynamics, Running power, Pool swim, Open water swim, Route navigation, Trackback, Interval workouts1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Training Load, VO2 max, Cadence, Stride Length, Ground Contact Time, Vertical Oscillation and Running Power, pool and open water swim, offline maps with custom route creation, Backtrack15Owner's manualsupport.apple.com/en-gb/guide/watch/apd66fcd5c5c/27/watchos/27Read 8 October 2026Create a Custom Workout explicitly supports repeating work and recovery intervals, with optional warmup/cooldown. It excludes Multisport and Open Water Swim from custom workouts. The added entry is interval_workouts only. The SE 3 is an eligible watchOS 27 model.
- Sport profiles
- Not available
- Dive modes
- Not available
- External sensors
- Heart rate strap, Power meter, Speed and cadence13Reviewwareable.com/apple/apple-watch-se-3-reviewRead 8 October 2026Exact 40 mm review explicitly says an external heart-rate chest strap can be paired. Power meters and speed/cadence sensors are supported separately by the maker cycling guide. Partial daily discharge with 20% remaining and 40-50 minute top-up advice do not prove full endurance or 0-100% charging, so no measured numeric field is added.16Owner's manualsupport.apple.com/en-gb/guide/watch/apd4cbc876c7/27/watchos/27Read 8 October 2026Connect to compatible Bluetooth accessories for cycling workouts and About Power Zones explicitly identify external power meters, speed sensors and cadence sensors. Pair in Settings > Bluetooth > Health Devices. Physical built-in sensors and phone GPS are excluded. Supports the native watchOS 27 cycling feature on the listed compatible model, not an inferred ANT+ capability.
Safety
- Fall detection
- Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20265Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026
- Car crash detection
- Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20265Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026
- Emergency SOS
- Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20265Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026
- Emergency siren
- Not available
- Live location sharing
- Yes12Owner's manualsupport.apple.com/en-gb/guide/watch/apd1132106dc/27/watchos/27Read 8 October 2026Find a friend's location: a worn Apple Watch with cellular service shares its location when the wearer has no iPhone or iPad nearby. Find My sharing must be configured with recipients and Location Services. The GPS-only reference uses the paired iPhone sharing path. The documented standalone path requires a GPS + Cellular model with service and network coverage. This network-based feature is separate from manual satellite location updates.17Owner's manualsupport.apple.com/en-gb/guide/watch/jg49jxgqs19v/27/watchos/27Read 8 October 2026Set up Find My on Apple Watch explicitly supports sharing location from the watch app with a selected recipient and sharing duration. Find My must be set up for the paired account. The iPhone guide identifies when the location source moves from phone to a worn GPS + Cellular watch.18Owner's manualsupport.apple.com/en-gb/guide/iphone/iph01954dc44/iosRead 8 October 2026Set up location sharing requires Share My Location and Find My Location Services. The location source can be the paired iPhone. Apple explicitly says the worn GPS + Cellular watch becomes the sharing source when out of iPhone range. This does not assign standalone cellular sharing to a GPS-only model.
- Dedicated LED flashlight
- Not available
Positioning
- Positioning
- GPS (L1), GLONASS, Galileo, QZSS, BeiDou1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026L1 GPS (GLONASS, Galileo, QZSS, and BeiDou)
Connectivity
- Bluetooth
- Not available
- Bluetooth version
- 5.31Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
- Wi-Fi
- Not available
- Wi-Fi standard
- Wi-Fi 41Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
- 4G bands
- 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 66, 71, 38, 39, 40, 411Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026FDD-LTE 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 66, 71. TDD-LTE 38, 39, 40, 41. Models A3326 and A33283Maker product pagesupport.apple.com/en-us/125094Read 30 September 2026
- 5G bands
- n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n66, n71, n38, n40, n411Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026FDD-5G NR n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n66, n71. TDD-5G NR n38, n40, n413Maker product pagesupport.apple.com/en-us/125094Read 30 September 2026
- Contactless payments
- Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
- Payment services
- Apple Pay1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
- Ultra-wideband
- Not available
- Satellite
- Not available
- ANT+
- Not available
Audio
Controls
- Named operating buttons
- Side button1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026User control buttons only. Digital Crown and band-release buttons excluded.
- Crown
- Rotating haptic1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
- Rotating bezel
- Not available
Battery and charging
- Battery capacity
- Not available
- Claimed battery life
Mode With solar Hours (h) Smartwatch No 18 Low power No 32 GPS No 7 - Smartwatch mode (claimed)
- 18h
- AOD battery life (up to)
- Not available
- GPS mode (claimed)
- 7h
- Solar charging
- Not available
- Charging method
- Magnetic puck1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Apple Watch Magnetic Fast Charger to USB-C Cable
- Charging guidance
- Not available
- Max charging power (watch)
- Not available
- Quick charge claim
- Charge time15 minUse time8 h1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Power and Battery Life: normal-use hours from a short charge. Sleep-only charging claim is a different workload.
Measured
We could not find any of these 4 fields. Show them
- Peak brightness (measured)
- Not available
- Battery life (measured)
- Not available
- Battery tests (measured)
- Not available
- Full charge time (measured)
- Not available
Strap
- Lug width
- Not available
- Quick-release strap
- Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Band release button
- Strap system
- Apple Watch proprietary slide-in band connector with case-mounted band-release buttons.14Maker product pagesupport.apple.com/en-us/108908Read 8 October 2026Changing your band: hold the case band-release button and slide the band sideways. This is the proprietary sliding attachment, not a standard spring-bar width. Compatible size groups depend on the chosen case. The value describes the shared attachment mechanism without substituting an unproved width.
- Strap material
- Not available
- Strap
- Not available
- Strap sizes
- Not available
Regulatory
We could not find any of these 4 fields. Show them
- FCC ID
- Not available
- SAR limb (US)
- Not available
- SAR limb (EU)
- Not available
- Other certifications
- Not available
In the box
- In the box
- Apple Watch SE 3, Band, Apple Watch Magnetic Fast Charger to USB-C Cable (1m)1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
Links
- Product page
- www.apple.com/apple-watch-se-32Maker product pageapple.com/apple-watch-se-3Read 30 September 2026
- Spec sheet
- www.apple.com/apple-watch-se-3/specs1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026
- Manual
- support.apple.com/en-gb/guide/watch/welcome/27/watchos/277Owner's manualsupport.apple.com/en-gb/guide/watch/welcome/27/watchos/27Read 30 September 2026watchOS 27 user guide. Models covered include this watch.
- EPREL registration number
- Not available
Warranty
We could not find any of these 1 fields. Show them
- Manufacturer warranty (source market)
- Not available
Compare with
Pick a smartwatch to see both side by side. Differences are marked yellow.
Variants
Each variant lists only what differs from the specs above.
| Model number | Markets | Case size | Case dimensions | Weight (case only) | Screen size | Resolution | Display area | Cellular | Network |
|---|---|---|---|---|---|---|---|---|---|
| A3324 | Not available | 40 mm | Height 40, Width 34, Thickness 10.7 mm | 26.3 g | Not available | 324 × 394 px | 759 mm² | No | Not available |
| A3325 | Not available | 44 mm | Height 44, Width 38, Thickness 10.7 mm | 32.9 g | 1.78 in | 368 × 448 px | 977 mm² | No | Not available |
| A3326 | Not available | 40 mm | Height 40, Width 34, Thickness 10.7 mm | 26.4 g | Not available | 324 × 394 px | 759 mm² | Yes | LTE, 5G |
| A3328 | Not available | 44 mm | Height 44, Width 38, Thickness 10.7 mm | 33 g | 1.78 in | 368 × 448 px | 977 mm² | Yes | LTE, 5G |
| A3391 | CN | 40 mm | Height 40, Width 34, Thickness 10.7 mm | 26.3 g | Not available | 324 × 394 px | 759 mm² | No | Not available |
| A3392 | CN | 44 mm | Height 44, Width 38, Thickness 10.7 mm | 32.9 g | 1.78 in | 368 × 448 px | 977 mm² | No | Not available |
| A3327 | CN | 40 mm | Height 40, Width 34, Thickness 10.7 mm | 26.4 g | Not available | 324 × 394 px | 759 mm² | Yes | LTE, 5G |
| A3329 | CN | 44 mm | Height 44, Width 38, Thickness 10.7 mm | 33 g | 1.78 in | 368 × 448 px | 977 mm² | Yes | LTE, 5G |
Sources
We read 19 sources for this smartwatch. The numbers match the markers in the sheet.
- Maker product pageapple.com/apple-watch-se-3/specs
- Maker product pageapple.com/apple-watch-se-3
- Maker product pagesupport.apple.com/en-us/125094
- Maker product pagesupport.apple.com/en-us/108056
- Spec databasegsmarena.com/apple_watch_se_3-14133.php
- Maker product pageapple.com/uk/watch/battery
- Maker product pagesupport.apple.com/en-us/100100
- Maker product pagesupport.apple.com/en-us/108908
- Owner's manualsupport.apple.com/en-gb/guide/iphone/iph01954dc44/ios
See a wrong value? Tell us and name the field.
PredecessorApple Watch SE 2