Smartwatches / Compare

Apple Watch SE 3 vs Apple Watch Ultra 2

A

Product A: Apple

Watch SE 3

93 of 150 known

Change Apple Watch SE 3

Compare the Apple Watch Ultra 2 with

Search smartwatches

B

Product B: Apple

Watch Ultra 2

99 of 150 known

Change Apple Watch Ultra 2

Compare the Apple Watch SE 3 with

Search smartwatches

All 150 fields

Every value links to where we found it.

Only differences

AApple Watch SE 3

BApple Watch Ultra 2

General

8 of 10 differ

Series

Apple Watch SE1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Apple Watch Ultra1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

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

A29862Maker product pagesupport.apple.com/en-us/108056Read 5 October 2026A2986 North America/Europe/Asia Pacific. China A2987 and Hermès packages not represented.14Maker product pageapple.com/watch/cellularRead 5 October 2026

GTIN / EAN

Not available

Not available

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

9 September 20255Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026

12 September 20233Press releaseapple.com/newsroom/2023/09/apple-unveils-apple-watch-ultra-2Read 5 October 2026September 12, 2023 announcement/preorder. Actual retail separately corroborated by launch-day maker update.

Status

Available2Maker product pageapple.com/apple-watch-se-3Read 30 September 2026

Not available

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

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).

Apple Watch Ultra23Press articlemacrumors.com/guide/apple-watch-ultra-vs-ultra-2Read 23 October 2026MacRumors says the Apple Watch Ultra 2 replaces the first-generation Apple Watch Ultra.

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Apple Watch Ultra 324Press articlemacrumors.com/guide/apple-watch-ultra-2-vs-ultra-3Read 23 October 2026MacRumors says the Apple Watch Ultra 3 replaces the second-generation Apple Watch Ultra.

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$2495Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026Pricing and Availability: starting US launch price.

$7993Press releaseapple.com/newsroom/2023/09/apple-unveils-apple-watch-ultra-2Read 5 October 2026Original 49 mm Natural GPS + Cellular USD 799, tax excluded. Standard original Alpine/Trail/Ocean packages, not later premium Titanium Milanese or Hermès. Black prices not inferred.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

€2699Press releaseapple.com/de/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026Pricing and Availability: starting EUR price including German VAT.

€8995Press releaseapple.com/de/newsroom/2023/09/apple-unveils-apple-watch-ultra-2Read 5 October 2026Original German Natural 49 mm GPS + Cellular EUR 899 explicitly including VAT. Later premium-band and Black packages are not assigned this price.

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

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

US, DE3Press releaseapple.com/newsroom/2023/09/apple-unveils-apple-watch-ultra-2Read 5 October 2026Original launch expressly names US and Germany retail rollout. Regional model identities independently checked.5Press releaseapple.com/de/newsroom/2023/09/apple-unveils-apple-watch-ultra-2Read 5 October 2026Original German launch identifies actual marketed family and Germany rollout. No country inferred solely from page language.

ColoursiThe maker's own colour names

Midnight, Starlight1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20262Maker product pageapple.com/apple-watch-se-3Read 30 September 2026

Natural, Black1Maker product pagesupport.apple.com/en-us/111832Read 5 October 20262Maker product pagesupport.apple.com/en-us/108056Read 5 October 20263Press releaseapple.com/newsroom/2023/09/apple-unveils-apple-watch-ultra-2Read 5 October 2026

Segment

Smartwatch2Maker product pageapple.com/apple-watch-se-3Read 30 September 2026Listed under Watch on apple.com as the entry smartwatch

Outdoor1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

OS updates promisediYears of explicitly promised OS updates. A security-only support period does not establish an OS-upgrade promise.

Not available

Not available

Security updates untiliExact end date published for security-update support of this model. Do not calculate it from a stated number of years. A security-only period does not promise OS upgrades.

Not available

Not available

Case

6 of 8 differ

Case sizeiMarketed case-size options. The marketed size can differ from physical case height, such as ceramic editions. Base dimensions describe the smallest base-material case.

40, 44mm1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

49mm1Maker product pagesupport.apple.com/en-us/111832Read 5 October 202649 mm single case.

Case shape

Rectangular1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Rounded rectangular outline observed in the model-labeled In the Box manufacturer illustration. Geometry classification only, not a size or material inference.

Rectangular2Maker product pagesupport.apple.com/en-us/108056Read 5 October 2026Exact manufacturer model photos show rounded rectangular bodies. Case-size names are not screen diagonals.

Case materialiMaterial of the housing body, not just the bezel. Use Mixed when the maker describes a mixture of housing/frame materials. Read the published-material field for the parts and proportions.

Aluminium1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Titanium1Maker product pagesupport.apple.com/en-us/111832Read 5 October 20262Maker product pagesupport.apple.com/en-us/108056Read 5 October 2026

Case material (as published)

Aluminum1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Grade 5 titanium1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Exact Grade 5 titanium, distinct from the ceramic back.

BackiMaterial of the back of the smallest base-material case. Other materials or regional editions can differ. See source notes.

Aluminum4Maker product pagesupport.apple.com/en-us/108056Read 30 September 2026Ion-X glass, Retina display, and aluminum back

Ceramic2Maker product pagesupport.apple.com/en-us/108056Read 5 October 2026Exact Ultra 2 identifies ceramic back. Sapphire front is separate.

Case dimensionsiPhysical case height, width and thickness. The source note states exclusions such as the heart-rate sensor protrusion.

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

Height49Width44mm(1.9 × 1.7 in)1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Current sheet height 49 mm and width 44 mm agree with older sources. Thickness is omitted because current maker 12 mm conflicts with older exact maker 14.4 mm and review 14.5 mm, without a proved measurement exclusion.18Maker product pageapple.com/watch/compareRead 5 October 2026Maker Case row independently confirms published case height and width. Ultra 2 depth remains omitted because the current 12 mm claim differs from earlier exact maker 14.4 mm without a proved exclusion convention.

Weight (case only)iWatch body without a strap. An unqualified published weight must not be assumed to exclude the strap.

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

61.4g(2.2 oz)1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Maker case weights: Natural 61.4 g, Black 61.8 g. Source comparison Case row independently identifies case scope. No strap mass added.18Maker product pageapple.com/watch/compareRead 5 October 2026Exact selected models comparison explicitly places the same maker weights in Case rows, with bands in a separate section. This establishes case-only mass. Series 10 size/material/radio rows and Ultra 2 Natural/Black weights remain distinct.

Weight with strapiWatch with the stated strap attached. Strap material and case size belong in the source note. Reviewer measurements belong in measured fields.

Not available

Not available

Durability

7 of 8 differ

Water resistanceiStatic water-pressure rating in atmospheres. It is not a safe swimming or diving depth. Diving limits are listed separately.

5ATM1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Water resistance 50 m (swimproof) under ISO 22810:2010

10ATM1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026100 m under ISO 22810:2010 is a pressure-resistance rating. 100 m is 10 ATM. It is not a safe dive depth.

Water resistance standard

ISO 22810:20101Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Durability and footnotes.

ISO 22810:20101Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026ISO 22810:2010 as published with the 100 m rating.

Dust and water rating

Not available

IP6X1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Dive rating

Not available

EN133191Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Max dive depthiMaker-rated depth for the stated diving use, not a conversion from the water-resistance pressure rating.

Not available

40m1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Maker explicitly rated recreational scuba to 40 m with compatible third-party app. This is separate from 100 m water resistance and the sensor range.

MIL-STD-810iMaker claim that the watch was tested against specified MIL-STD-810 methods. It is not a guarantee for every military-standard test.

Not available

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

MIL-STD-810 tests

Not available

Altitude, High temperature, Low temperature, Temperature shock, Immersion, Freeze with thaw, Ice and freezing rain, Shock and vibration1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Exact listed MIL-STD-810H methods only. No claim that every method in the standard is tested.

Operating temperatureiPublished operating range. Source notes identify on-wrist limits and other operating conditions. Storage or charging limits are excluded.

Min0Max35°C1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Min-20Max55°C1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026On-wrist -20 to 55 degrees C. General operating 0 to 35 and dive operating 0 to 40 are distinct conditions. Storage limits are excluded.

Display

7 of 14 differ

Display type

LTPO OLED1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

LTPO OLED1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Display type (as published)

Always-On Retina display with OLED and LTPO1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Always-On Retina LTPO2 OLED display1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Screen sizeiPublished active display diagonal for a rectangular display, or diameter for a round display. Do not calculate it from pixels or display area.

Not available

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

410 × 502px1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Exact maker pixel tuple stored in portrait orientation. 410 wide, 502 high.

Pixel densityiPublished pixel density. A rectangular diagonal formula must not be applied to a round display.

326ppi1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20263Maker product pagesupport.apple.com/en-us/125094Read 30 September 2026

326ppi1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Explicit maker 326 ppi. No calculation from display area or unqualified review diagonal.

Display area

759mm²1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20263Maker product pagesupport.apple.com/en-us/125094Read 30 September 2026

1,185mm²1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Published active area 1185 square mm.

Touchscreen

Yes7Owner's manualsupport.apple.com/en-gb/guide/watch/welcome/27/watchos/27Read 30 September 2026Basics: tap/swipe touchscreen controls.

Yes7Owner's manualsupport.apple.com/guide/watch/apple-watch-models-apd2054d0d5b/watchosRead 5 October 2026Maker manual directs taps and swipes on the touch display for these supported models.

Max refresh rateiHighest published display refresh rate in active operation.

Not available

Not available

Min refresh rateiLowest published display refresh rate, usually in always-on mode. It is not the active-use minimum unless stated.

Not available

Not available

Peak brightnessiMaker peak-brightness claim. It may apply to a small area or bright ambient light. Full-screen limits and battery/temperature conditions belong in source notes.

1,000nits1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20263Maker product pagesupport.apple.com/en-us/125094Read 30 September 2026

3,000nits1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Maker up to 3000 nits maximum. Window size and precise ambient threshold unstated. Not a reviewer measurement.

Minimum brightness

2nits1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20263Maker product pagesupport.apple.com/en-us/125094Read 30 September 2026

1nit1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Always-on display

Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Display cover

Other glass1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Tough Ion-X front glass with 4x crack resistance

Sapphire1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Flat sapphire crystal for exact Ultra 2.2Maker product pagesupport.apple.com/en-us/108056Read 5 October 2026

Display cover (as published)

Ion-X front glass1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Flat sapphire crystal1Maker product pagesupport.apple.com/en-us/111832Read 5 October 20262Maker product pagesupport.apple.com/en-us/108056Read 5 October 2026

Platform

4 of 15 differ

Platform

watchOS1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

watchOS1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

OS at launch

watchOS 265Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026

watchOS 103Press releaseapple.com/newsroom/2023/09/apple-unveils-apple-watch-ultra-2Read 5 October 2026Exact original release explicitly watchOS 10.

Software

Not available

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.

watchOS 278Maker product pageapple.com/os/watchosRead 5 October 2026Current watchOS 27 explicitly supports these exact models. Latest system needs iPhone 11 or later, or SE second generation or later, with iOS 27. Original iPhone XS launch minimum is not a current-system compatibility promise.19Maker product pagesupport.apple.com/en-us/149037Read 5 October 2026Stable watchOS 27 release dated September 14, 2026. Exact-model compatibility is separately established by the current maker watchOS page. Checked October 5, 2026.

Works with

iOS1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

iOS1Maker product pagesupport.apple.com/en-us/111832Read 5 October 20268Maker product pageapple.com/os/watchosRead 5 October 2026

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

Launch: iPhone XS or later with iOS 17. Current watchOS 27 requires iPhone 11 or later, or iPhone SE (2nd generation or later), with iOS 27.1Maker product pagesupport.apple.com/en-us/111832Read 5 October 20268Maker product pageapple.com/os/watchosRead 5 October 2026

App store

Yes7Owner's manualsupport.apple.com/en-gb/guide/watch/welcome/27/watchos/27Read 30 September 2026App Store section: install apps on Apple Watch.

Yes3Press releaseapple.com/newsroom/2023/09/apple-unveils-apple-watch-ultra-2Read 5 October 2026Original exact release explicitly compatible third-party Oceanic+ by Huish Outdoors through App Store.15Maker spec sheet (PDF)tdsynnex.com/na/us/apple/wp-content/uploads/sites/49/2023/09/Apple-Watch-Lineup-and-Customer-Scenarios.pdfRead 5 October 2026

Voice assistants

Siri1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Siri1Maker product pagesupport.apple.com/en-us/111832Read 5 October 20263Press releaseapple.com/newsroom/2023/09/apple-unveils-apple-watch-ultra-2Read 5 October 2026Siri includes on-device processing for suitable basic requests. Network and later AI functionality have additional requirements.

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

Apple S9 SiP1Maker product pagesupport.apple.com/en-us/111832Read 5 October 20263Press releaseapple.com/newsroom/2023/09/apple-unveils-apple-watch-ultra-2Read 5 October 2026

Process

Not available

Not available

CPU cores

21Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

21Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Exact SiP dual-core CPU, two cores. Four Neural Engine cores are not counted as CPU cores. Clock, CPU cluster names, GPU model and process node remain unproved.

CPU configuration

Not available

Not available

Max CPU clock

Not available

Not available

GPU

Not available

Not available

Low-power coprocessor

Not available

Not available

Memory

0 of 2 differ

RAMiKeep published GB values as stated. Convert a source explicitly labelled MB using 1000 MB per GB and preserve its original figure and unit in the note. Do not assume MB means MiB. Convert explicit MiB or GiB to decimal GB through their byte definitions, recording the conversion in the note. This normalization does not establish an exact physical byte count.

Not available

Not available

StorageiTotal built-in storage the maker states, in decimal GB. Space available to the user is lower and goes in the source note. A figure the maker gives only as available space is not stored.

64GB1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 202664GB capacity

64GB1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Health sensors

5 of 8 differ

Heart rate sensor

Second-generation optical heart sensor1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Third-generation optical heart sensor1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

ECG capabilityiElectrical heart sensing hardware with an ECG capability. The ECG app can require an eligible country, age and paired phone.

No2Maker product pageapple.com/apple-watch-se-3Read 30 September 2026Compare section: ECG app not applicable

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Electrical heart sensor with ECG app. App requires eligible country and user age 22 or older.21Maker product pageapple.com/watchos/feature-availabilityRead 5 October 2026

Blood oxygen sensingiBlood-oxygen sensing capability. App availability and medical status vary by market.

No2Maker product pageapple.com/apple-watch-se-3Read 30 September 2026Compare section: Blood Oxygen app not applicable

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Exact blood-oxygen sensing/app capability. Current US software calculates and views eligible measurements on paired iPhone. Post-January 18, 2024 LW/A or LS/A hardware has additional software requirements, independently documented in current manual. No claim this is a medical diagnostic app.20Maker product pagesupport.apple.com/guide/watch/blood-oxygen-apdaf17aa5ef/watchosRead 5 October 2026Current maker guide qualifies affected US watches with part numbers ending LW/A or LS/A. Blood Oxygen measurements require the latest supported iOS and watchOS, with data analysis performed on the paired iPhone and results displayed in its Health app. This is a software and regional workflow qualification, not a different sensor claim.21Maker product pageapple.com/watchos/feature-availabilityRead 5 October 2026

Skin temperature sensingiA sensor or supported function that measures skin temperature. It is not a core-body thermometer.

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

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Wrist-temperature sensing and retrospective ovulation estimation. Not a core-body thermometer or direct medical thermometer.

Blood pressure featureiPublished blood-pressure feature category. Hypertension notifications are not numerical blood-pressure readings.

None2Maker product pageapple.com/apple-watch-se-3Read 30 September 2026Compare section: Hypertension notifications not applicable

Hypertension notifications9Maker product pagesupport.apple.com/en-us/123002Read 5 October 2026watchOS 26 actual release notes explicitly eligible Series 9+ and Ultra 2+ for hypertension notifications. No numerical mmHg measurement or cuff capability. Intended age 22+, no prior hypertension diagnosis and not pregnant. Country/paired-phone limits apply.21Maker product pageapple.com/watchos/feature-availabilityRead 5 October 2026

Body composition sensor

Not available

Not available

Skin conductance (EDA)

Not available

Not available

Medical clearancesiNamed regulatory clearances and their jurisdiction. General water resistance or an ECG sensor does not establish medical clearance.

Not available

FDA 510(k) clearance for Sleep Apnea Notification Feature (US), FDA 510(k) K250507 for Hypertension Notification Feature (US)10Press releaseapple.com/newsroom/2024/09/watchos-11-is-available-todayRead 5 October 2026Actual September 16, 2024 maker release confirms FDA 510(k) sleep-apnea software clearance and exact eligible Series 9/10 and Ultra 2. US jurisdiction, not universal device certification.11Regulatory filingaccessdata.fda.gov/cdrh_docs/pdf25/K250507.pdfRead 5 October 2026FDA original K250507 Hypertension Notification Feature software cleared September 11, 2025 with administrative corrected letter September 12. Exact model eligibility separately proved by maker release notes. This is a notification algorithm, not numerical blood-pressure measurement.

Motion and environment sensors

4 of 9 differ

Accelerometer

Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Accelerometer range

Not available

256G15Maker spec sheet (PDF)tdsynnex.com/na/us/apple/wp-content/uploads/sites/49/2023/09/Apple-Watch-Lineup-and-Customer-Scenarios.pdfRead 5 October 2026Original exact Ultra 2 column explicitly up to 256 g-forces.

Gyroscope

Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

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.

Not available

Compass

Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Ambient light sensor

Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Depth gauge

Not available

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Depth gauge rangeiPublished measurement range of the depth gauge, distinct from maximum diving depth and water-pressure resistance.

Not available

Not available

Water temperature sensor

Not available

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Health and fitness

4 of 5 differ

Health featuresiSupported health functions with country, phone and subscription restrictions in the source notes. Upcoming functions are not counted as available.

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

Blood oxygen app, ECG app, Cycle tracking, Temperature-based ovulation, Heart rate alerts, Irregular rhythm notifications, Noise monitoring, Sleep tracking, Sleep stages, Sleep apnea notifications, Hypertension notifications1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Exact current supported functions. Newer sleep apnea, Vitals, sleep score and hypertension notifications are separately software-qualified. Country, age and phone restrictions remain material. Maker-supported Medications, Mindfulness, Vitals and later Sleep Score have no exact enum option and are retained here only. No nearest health category is substituted.9Maker product pagesupport.apple.com/en-us/123002Read 5 October 2026Sleep score and hypertension notifications are later software. Not borrowed as original launch promises. Maker-supported Medications, Mindfulness, Vitals and later Sleep Score have no exact enum option and are retained here only. No nearest health category is substituted.10Press releaseapple.com/newsroom/2024/09/watchos-11-is-available-todayRead 5 October 2026Sleep apnea notifications for eligible adults 18+ without prior diagnosis. Vitals and training-load functions are current software additions. Ultra 2 did not launch with watchOS 11. Maker-supported Medications, Mindfulness, Vitals and later Sleep Score have no exact enum option and are retained here only. No nearest health category is substituted.20Maker product pagesupport.apple.com/guide/watch/blood-oxygen-apdaf17aa5ef/watchosRead 5 October 202621Maker product pageapple.com/watchos/feature-availabilityRead 5 October 2026Current maker availability lists independently checked for the represented US and Germany markets. ECG, Blood Oxygen, sleep apnea notifications and hypertension notifications depend on supported model, software, region and individual eligibility. The affected US Blood Oxygen workflow is qualified by the dedicated maker guide.

Fitness featuresiSupported workout functions. A sport-profile name alone does not prove advanced metrics such as running power or running dynamics. Trackback follows the recorded route back to the start. A compass arrow that points straight to the start does not count.

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.

Training load, Running dynamics, Pool swim, Open water swim, Trackback1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Exact running, cycling, hiking and swimming features. Backtrack is a route trace, while current offline map storage is separately verified. Source also publishes Race Route, Pacer, workout views, heart-rate zones, Compass waypoints, cycling FTP/power zones/cadence and SWOLF. These names lack matching enum options and are not replaced with a different feature.10Press releaseapple.com/newsroom/2024/09/watchos-11-is-available-todayRead 5 October 2026Source also publishes Race Route, Pacer, workout views, heart-rate zones, Compass waypoints, cycling FTP/power zones/cadence and SWOLF. These names lack matching enum options and are not replaced with a different feature.22Maker product pagesupport.apple.com/guide/watch/go-for-a-swim-apd09135915f/watchosRead 5 October 2026Current exact maker Watch guide explicitly names Pool Swim and Open Water Swim workouts. This supports the stored swim workout modes without inferring additional diving features.

Sport profilesiPublished count of distinct sport/activity profiles. A claim such as 180+ is not an exact integer count.

Not available

Not available

Dive modesiActual supported dive modes. Water resistance or a depth app alone does not establish decompression-capable scuba support.

Not available

Freedive3Press releaseapple.com/newsroom/2023/09/apple-unveils-apple-watch-ultra-2Read 5 October 2026Original exact Ultra 2 release explicitly freediving with updated Oceanic+. Recreational scuba to 40 m is separately proved, but single-gas versus multi-gas configuration is not published in the reopened exact sources, so no nearest scuba enum is selected. Compatible app and subscription required. Depth app alone is not a decompression computer.

External sensorsiTypes of external workout sensors the watch can pair with. GPS reception, phone data and built-in sensors do not qualify.

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.

Power meter, Speed and cadence3Press releaseapple.com/newsroom/2023/09/apple-unveils-apple-watch-ultra-2Read 5 October 2026Exact original watchOS 10 cycling paragraph explicitly Bluetooth power meters, speed sensors and cadence sensors. No ANT+ compatibility is inferred.

Safety

2 of 6 differ

Fall detectioniAutomatic fall detection. Incident detection restricted to recorded workouts is not counted as general 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

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 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

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Emergency SOSiA manual emergency alert to emergency services or preset contacts. Source notes identify the recipient, paired-phone requirement and country limits. Satellite is listed separately.

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

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Emergency sireniPublished or measured siren sound level in decibels. Audible distance alone does not establish this value. Measurement distance belongs in source notes.

Not available

86dB15Maker spec sheet (PDF)tdsynnex.com/na/us/apple/wp-content/uploads/sites/49/2023/09/Apple-Watch-Lineup-and-Customer-Scenarios.pdfRead 5 October 2026Exact Ultra 2 Alpine Loop scenario explicitly built-in 86-decibel siren, audibility up to 180 m. Measurement distance for 86 dB is not specified. Notebookcheck 84 dB sentence is not substituted as maker claim.

Live location sharingiShares live location during supported use. A paired phone or data subscription may be required.

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.

Not available

Dedicated LED flashlightiA dedicated hardware LED flashlight. Lighting the display white is not counted.

Not available

Not available

Positioning

2 of 3 differ

PositioningiPublished satellite systems and signal bands. Do not infer bands from dual-frequency support alone.

GPS (L1), GLONASS, Galileo, QZSS, BeiDou1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026L1 GPS (GLONASS, Galileo, QZSS, and BeiDou)

L1 GPS, L5 GPS, GLONASS, Galileo, QZSS, BeiDou1Maker product pagesupport.apple.com/en-us/111832Read 5 October 20263Press releaseapple.com/newsroom/2023/09/apple-unveils-apple-watch-ultra-2Read 5 October 2026

Dual-band GNSSiMaker-stated dual-frequency satellite reception. Supported constellations and signal bands are listed separately.

No13Reviewwareable.com/apple/apple-watch-se-3-reviewRead 8 October 2026Review explicitly tests 40 mm Starlight and identifies single-band L 1 GPS. This corroborates the maker L 1 specification, not a chipset-based guess. Cellular edition is not identified, so no radio-dependent runtime result is imported.

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Offline mapsiMap data stored on the watch and usable without live phone data. GPX routes or breadcrumb tracks alone are not offline maps.

Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Yes12Owner's manualsupport.apple.com/en-mt/guide/watch/-apd0111bf788/watchosRead 5 October 2026Current maker guide explicitly syncs downloaded offline maps to Apple Watch for use without live iPhone data. Maps must be obtained and synced in advance. Region/content availability applies. Backtrack breadcrumbs alone are not used as proof.

Connectivity

5 of 15 differ

BluetoothiPublished Bluetooth support for this model. The version is recorded separately. Unknown version does not mean the radio is absent.

Not available

Not available

Bluetooth version

5.31Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

5.31Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Wi-FiiPublished Wi-Fi support for this model. The standard and bands are recorded separately. Unknown standard does not mean Wi-Fi is absent.

Not available

Not available

Wi-Fi standard

Wi-Fi 41Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Wi-Fi 41Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Wi-Fi bands

2.4 GHz1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Not available

CellulariTrue when a cellular edition is sold. A variant row states whether that individual model has cellular hardware.

Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026GPS + Cellular models A3326 and A3328 support RedCap for 5G and LTE

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 202614Maker product pageapple.com/watch/cellularRead 5 October 2026

Network

LTE, 5G1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

LTE1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Exact marketed cellular capability includes LTE and UMTS. UMTS is not mapped to HSPA enum without proof. Only LTE stored. GPS-only rows have no cellular hardware.

4G bandsiPublished LTE bands for the stated regional cellular model. Do not transfer bands to another region or Wi-Fi-only model.

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

Not available

5G bandsiPublished 5G NR bands for the stated regional cellular model. RedCap support does not establish conventional full-bandwidth phone 5G.

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

Not available

NFCiSome regions sell an NFC edition, so it is per variant.

Yes6Spec databasegsmarena.com/apple_watch_se_3-14133.phpRead 30 September 2026

Yes13Maker product pagesupport.apple.com/en-gb/guide/security/seccb53a35f0/webRead 5 October 2026Maker platform security explicitly says unlocked Apple Watch side-button authorization routes contactless responses through NFC controller. Exact model technical sheets independently list Apple Pay.

Contactless payments

Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Yes13Maker product pagesupport.apple.com/en-gb/guide/security/seccb53a35f0/webRead 5 October 2026Apple Pay contactless payment capability. Eligible cards, banks and regions required. Not inferred from tablet in-app Apple Pay.

Payment services

Apple Pay1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Apple Pay1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Ultra-wideband

Not available

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Satellite

Not available

Not available

ANT+

Not available

Not available

Audio

2 of 4 differ

Speaker

Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Microphones

Not available

31Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Exact Audio section explicitly three physical microphones.

Calls on the watchiVoice-call capability of the marketed model, including sold cellular editions. Variant radio capability and paired-phone requirements still apply.

Cellular or phone2Maker product pageapple.com/apple-watch-se-3Read 30 September 2026Take and make phone calls from the wrist. Cellular models work without iPhone5Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026

Cellular or phone1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Family includes cellular and phone-linked calling. Cellular service requires supported carrier subscription. GPS-only rows require paired phone or eligible Wi-Fi calling.14Maker product pageapple.com/watch/cellularRead 5 October 2026Exact A2986 or A3001/A3003 model groups listed for US and Europe carriers. Voice calls independently of nearby iPhone need compatible activated service plan. GPS variants need phone or eligible Wi-Fi calling. No current carrier list is treated as fixed forever.

Music on the watchiPlays audio stored on the watch. Remote control of phone playback or streaming alone does not qualify.

Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Media playback. Battery test includes music playback from Apple Watch via Bluetooth5Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026

Not available

Controls

3 of 5 differ

ButtonsiPhysical controls used to operate the watch, excluding the rotating crown and strap-release buttons. A clickable rotating crown is counted only in Crown.

11Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Side button. Digital Crown and band release buttons not counted

21Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Two operating push buttons, Side and customizable Action. Digital Crown and band-release buttons excluded.

Named operating buttonsiNames of operating buttons, excluding the crown and strap-release controls.

Side button1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026User control buttons only. Digital Crown and band-release buttons excluded.

Customizable Action button, Side button1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Exact maker names only.

CrowniA crown that rotates to control the interface. A round push button that does not rotate is not a crown.

Rotating haptic1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Rotating haptic1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Digital Crown rotates with haptic feedback. It is counted in Crown, not push-button count.

Rotating bezeliPhysical rotation or touch gestures around the display edge. A fixed decorative bezel is None.

Not available

Not available

Gestures

Single tap, Double tap, Wrist flick1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 20262Maker product pageapple.com/apple-watch-se-3Read 30 September 20265Press releaseapple.com/newsroom/2025/09/apple-introduces-apple-watch-se-3Read 30 September 2026

Double tap, Wrist flick7Owner's manualsupport.apple.com/guide/watch/apple-watch-models-apd2054d0d5b/watchosRead 5 October 2026Double tap supported. Wrist flick independently added with watchOS 26 on Series 9+ and Ultra 2+. Ultra 2 original double tap came with later watchOS 10.1, not launch firmware.9Maker product pagesupport.apple.com/en-us/123002Read 5 October 2026Wrist Flick supported on Series 9+ and Ultra 2+ with updated software.

Battery and charging

6 of 13 differ

Battery capacityiPublished battery capacity for the stated case size. Rated and typical capacity are distinguished in source notes.

Not available

Not available

Claimed battery lifeiMaker endurance claims with distinct operating modes and case sizes. With solar describes augmentation of that estimate, not hardware capability. Use false for ordinary claims without solar augmentation, true for explicitly solar-aided claims, and omit it when solar qualification is unclear. Source notes state AOD, GNSS, music and solar conditions. Do not create a normal-use row from an AOD-only claim. Low power denotes the maker battery-saver mode. Keep its typical, light-use and always-on claims separate from standard-mode claims. GPS power saving identifies an intermediate reduced-accuracy GNSS saving preset. Source notes retain the maker's preset name and published conditions. Max battery GPS is the distinct maximum-saving claim. When the maker has only one GPS saving preset, it is GPS power saving.

AApple Watch SE 3

Mode	With solar	Hours (h)
Smartwatch	No	18
Low power	No	32
GPS	No	7

Source1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Power and Battery Life, battery footnotes. Normal-use claim is a mixed workload, not a GPS-only test. Outdoor workout is tested without iPhone, with heart-rate sensor on. AOD assumptions are not stated in the official test footnotes. Low Power Mode is distinct from normal use.

BApple Watch Ultra 2

Mode	With solar	Hours (h)
Smartwatch	No	36
Low power	No	72
Extended GPS workout	No	17

Source1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Up-to 36 hours normal and 72 low power. Current 36-hour August 2024 preproduction test used 600 time checks, 180 notifications, 30 min apps and 60 min Bluetooth-music workout, including 8 h LTE and 28 h iPhone Bluetooth. Exact low-power workload is not separately published in this current footnote. Original maker 2023 lineup separately proves 17 h Outdoor Run in Low Power with full heart-rate/GPS readings, stored as Extended GPS workout with that condition. All recorded workloads use the internal battery without solar assistance. with_solar false qualifies those tests and is not an added solar-assisted runtime claim.15Maker spec sheet (PDF)tdsynnex.com/na/us/apple/wp-content/uploads/sites/49/2023/09/Apple-Watch-Lineup-and-Customer-Scenarios.pdfRead 5 October 2026Exact Ultra 2 table explicitly up to 17 h Outdoor Run workout in Low Power Mode with full heart-rate and GPS readings. Stored as Extended GPS workout and qualified, not ordinary full-power GPS or reduced-reading maximum battery mode. All recorded workloads use the internal battery without solar assistance. with_solar false qualifies those tests and is not an added solar-assisted runtime claim.

Smartwatch mode (claimed)iMaker normal-use smartwatch claim without solar. A watch with only an explicit AOD-mode claim has no value here. Workloads differ and source notes must be read.

18h=CalculatedFrom Claimed battery life

36h=CalculatedFrom Claimed battery life

AOD battery life (up to)iMaker claimed smartwatch endurance with the always-on display enabled and without solar, for the base case. Source notes preserve workload and case conditions. This is a claim, not a measured test or an AOD-off estimate.

Not available

Not available

GPS mode (claimed)iMaker regular GPS/GNSS activity claim without solar, for the base case. AOD, multi-band, music and power-saving conditions have separate rows when published.

7h=CalculatedFrom Claimed battery life

Not available

Solar chargingiPublished solar charging hardware capability. An ordinary battery estimate without solar augmentation does not prove that the watch lacks solar charging hardware.

Not available

Not available

Charging methodiThe connection at the watch, not the cable end at the USB adapter. A proprietary inductive puck is not Qi unless interoperability is explicitly established.

Magnetic puck1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Apple Watch Magnetic Fast Charger to USB-C Cable

Magnetic puck1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Exact supplied proprietary magnetic fast-charge cable/puck. USB-C names adapter end. Qi compatibility is not claimed.

Charging guidanceiPublished charging requirements, nominal estimates and compatibility guidance. Keep adapter ratings separate from power accepted by the watch.

Not available

Not available

Max charging power (watch)iPublished maximum charging power at the watch. Adapter rating or charger input power does not prove the power accepted by the watch.

Not available

Not available

Fast chargingiAn explicit fast-charging capability claim. A short charging time or high adapter wattage alone does not qualify.

Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

Yes1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026

Quick charge claimiMaker claim for usage from a short charge. Source notes identify the usage workload, such as normal use or sleep tracking.

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.

Not available

Charge 0 to 80% (claimed)iMaker claim for charging an empty battery to 80%. Charger and approximate qualifiers belong in source notes.

45min1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Power and Battery Life, charge footnote: included fast charger cable, Apple 20W USB-C power adapter. Approximate maker time.

60min1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Approximate 60 min empty-to-80%, supplied magnetic fast-charge cable A2515 and Apple 20 W adapter A2305. August 2023 preproduction/prerelease tests. Adapter rating is not maximum watch charging power. No empty-to-full claim inferred.

Full charge time (claimed)iMaker advertised nominal full-charge duration. Approximate or theoretical maker estimates are allowed, with their conditions in source notes. Partial-charge intervals do not qualify. Measured 0 to 100% tests have a separate field.

75min8Maker product pageapple.com/uk/watch/batteryRead 30 September 2026Model-specific Charge section. Approximate claim, included fast charging cable with Apple 20W USB-C adapter. Series 12 says about one hour, SE 3 and Ultra 4 about 75 minutes.

Not available

Measured

1 of 4 differ

Peak brightness (measured)iReviewer measurement. Source notes state screen area, mode and ambient light. A small-area peak claim cannot be replaced with a full-screen measurement.

Not available

2,947nits16Measurementnotebookcheck.net/Apple-Watch-Ultra-2-review-A-stunning-display.861637.0.htmlRead 5 October 2026Exact Natural 49 mm review with orange/beige Trail Loop and watchOS 10.5 measures 2947 nits with brightness sensor enabled. Screen area and ambient lux unstated. Manual brightness 1023 is separate. Approximate three-day charge interval is not a full-discharge endurance test. Ninety minutes to 95 percent is not empty-to-full.

Battery life (measured)iReviewer-observed mixed-use endurance. Source notes state case size, AOD, workout use and whether it was a complete discharge. Extrapolation from partial discharge is excluded.

Not available

Not available

Battery tests (measured)iReviewer-observed endurance, with case size and test settings in source notes. Partial-discharge projections are not stored as measured endurance.

Not available

Not available

Full charge time (measured)iReviewer measurement from empty to full, not 0-80% or a charge from 5%. Source notes name the charger and case size.

Not available

Not available

Strap

2 of 6 differ

Lug widthiDistance between standard strap attachment lugs, not the decorative width of a proprietary strap. Unknown for custom connectors unless the maker publishes lug width.

Not available

Not available

Quick-release strapiThe supplied strap can be detached through its quick-release mechanism. Compatibility with quick-release replacement straps alone does not qualify.

Yes1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026Band release button

Yes7Owner's manualsupport.apple.com/guide/watch/apple-watch-models-apd2054d0d5b/watchosRead 5 October 2026Named band-release control and manufacturer guide slide-in band system. No standard lug width inferred from decorative strap width.16Measurementnotebookcheck.net/Apple-Watch-Ultra-2-review-A-stunning-display.861637.0.htmlRead 5 October 2026Exact supplied Trail Loop review confirms tool-free band change. Decorative 25 mm strap width is not a standard lug width.

Strap systemiPublished attachment system and compatible case sizes. Proprietary connectors are distinguished from standard spring bars.

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.

Not available

Strap materialiMaterial of the supplied strap for the stated package. Do not substitute material from another band sold separately.

Not available

Not available

Strap

Not available

Not available

Strap sizesiPublished wrist-circumference range for the stated strap or case. Source notes distinguish an overall compatible wrist range from one supplied strap size.

AApple Watch SE 3

Not available

BApple Watch Ultra 2

Size	Wrist (min) (mm)	Wrist (max) (mm)
Overall compatible case wrist range, varies by band	130	210

Source1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Overall compatible wrist range, dependent on chosen band, not one supplied strap size. 130 to 210 mm.

Regulatory

None of 3 known

FCC ID

Not available

Not available

SAR limb (US)iPublished limb/wrist SAR for the stated base regional model under the US regime. Other case sizes or radio versions can differ. Head or body SAR is excluded.

Not available

Not available

SAR limb (EU)iPublished limb/wrist SAR for the stated base regional model under the EU regime. Other case sizes or radio versions can differ. Head or body SAR is excluded.

Not available

Not available

Other certifications

Not available

Not available

In the box

1 of 2 differ

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

Apple Watch Ultra 2, Band, Apple Watch Magnetic Fast Charger to USB-C Cable (1 m)1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Complete maker standard inventory: watch, Band and one-meter magnetic fast-charge USB-C cable. Strap type/material varies and is not guessed.6Maker product pagesupport.apple.com/de-de/111832Read 5 October 2026

Power adapter in boxiA mains/USB power adapter is supplied. A charging cable, inductive puck or charging dock alone does not count.

No1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026In the Box lists watch, band and charging cable. No power adapter

No1Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Mains/USB power adapter is not in complete box inventory. Supplied magnetic cable/puck is distinct from a mains adapter.

Links

Not compared

Product page

www.apple.com/apple-watch-se-32Maker product pageapple.com/apple-watch-se-3Read 30 September 2026

support.apple.com/en-us/1118321Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Exact Watch Ultra 2 generation, checked against original launch and identification documents. Current US header says 2024 and includes Black finish. Original manufacturer launch and actual retail coverage independently establish the Natural model in 2023. The header discrepancy is not treated as a new hardware generation. No Ultra 3 or 4 specs are transferred.

Spec sheet

www.apple.com/apple-watch-se-3/specs1Maker product pageapple.com/apple-watch-se-3/specsRead 30 September 2026

support.apple.com/en-us/1118321Maker product pagesupport.apple.com/en-us/111832Read 5 October 2026Complete exact-generation maker technical sheet.15Maker spec sheet (PDF)tdsynnex.com/na/us/apple/wp-content/uploads/sites/49/2023/09/Apple-Watch-Lineup-and-Customer-Scenarios.pdfRead 5 October 2026Original Apple-copyright September 2023 lineup/customer-scenarios sheet, hosted by distributor. Exact Ultra 2 column and Alpine Loop scenario kept separate from Series 9/SE.

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.

support.apple.com/guide/watch/apple-watch-models-apd2054d0d5b/watchos7Owner's manualsupport.apple.com/guide/watch/apple-watch-models-apd2054d0d5b/watchosRead 5 October 2026Current original Apple Watch User Guide models chapter explicitly includes Series 10 and Ultra 2 with watchOS 27. It shows exact named controls/sensors. Older diagrams and chipset specs are not borrowed from Series 12.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

1 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

Not available

1year17Maker product pageapple.com/legal/warranty/products/ios-warranty-document-us.htmlRead 5 October 2026One-year US Apple manufacturer warranty. Statutory local consumer rights are separate.

Both are also in the API. Back to all smartwatches.