Skip to content

Watch comparison

Apple Ultra 3 vs Apple Series 11

Compare battery life, health tracking, display and fit.

Compared products
01Selected
Apple Watch Ultra 3

Apple Watch Ultra 3

  • Screen: 422 × 514 pixels; 326 ppi; 1,245 mm² display area.
  • Apple S10; 4-core Neural Engine processor.
  • 64 GB storage in this version.
  • Runs watchOS 26, upgradable to watchOS 27.
  • Wi-Fi 4 support.
KSh 90,000In Stock
Choose options
02
Apple Watch Series 11

Apple Watch Series 11

  • Screen: 42mm: 374 × 446 pixels; 46mm: 416 × 496 pixels; 326 ppi.
  • Apple S10; 4-core Neural Engine processor.
  • 64 GB storage in this version.
  • Runs watchOS 26, upgradable to watchOS 27.
  • Wi-Fi 4 support.
KSh 51,000In Stock
Choose options

Add to comparison

2 spaces available

Apple Watch UltraKSh 90,000
Apple Watch Ultra 2KSh 103,500
Huawei Watch Ultimate 2KSh 124,000
Amazfit T-Rex Ultra 2KSh 85,000
Apple Watch Ultra 4 49mmKSh 118,000
Apple Watch Series 12 42mmKSh 64,000
Apple Watch Series 12 46mmKSh 70,000
2 of 4 products

Our quick verdict

The Apple Watch Ultra 3 lasts longer between charges (42 hours vs 24 hours), has a brighter screen for outdoor use and is rated for free diving to 40 m, while the Apple Watch Series 11 is lighter to wear all day and has faster recharging (30 minutes).

Display

Apple Watch Ultra 3
422 × 514 pixels; 326 ppi; 1,245 mm² display area
Apple Watch Series 11
42mm: 374 × 446 pixels; 46mm: 416 × 496 pixels; 326 ppi

Battery life

Apple Watch Ultra 3
Up to 42 hours per charge
Apple Watch Series 11
Up to 24 hours per charge

Portability

Apple Watch Ultra 3
61.6 g
Apple Watch Series 11
30.3 g

Water resistance

Apple Watch Ultra 3
100 m under ISO 22810:2010
Apple Watch Series 11
50 m

Speaker

Apple Watch Ultra 3
Dual speakers, siren
Apple Watch Series 11
Supported

Key differences

The main differences to help you choose.

Apple Watch Ultra 3

  • Longer battery life: up to 42 hours (vs 24 hours).
  • Rated for up to 42 hours per charge (vs 24).
  • Brighter display: up to 3,000 nits (vs 2,000).
  • Rated for free diving to 40 m.

Apple Watch Series 11

  • Lighter: 30.3 g (vs 61.6 g).
  • Recharges faster: 30 minutes (vs 45 minutes).
  • Slimmer: 9.7 mm thick (vs 12 mm).

What matters most to you?

Choose any priorities

How each product answers the questions buyers ask most. Tick a topic to add it, untick one to hide it.

More topicsFewer topics
6 priorities selected.
How each product answers the selected priorities
PriorityApple Watch Ultra 3Apple Watch Series 11
Battery lifeUp to 42 hours per chargeUp to 24 hours per charge
Storage64 GB storage64 GB storage
DisplayOLED display, 326 ppiOLED display, 326 ppi
PerformanceApple S10 processorApple S10 processor
SoftwarewatchOS 26watchOS 26
Water resistance100 m under ISO 22810:201050 m

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationApple Watch Ultra 3Apple Watch Series 11
DisplayAlways-On Retina LTPO3 wide-angle OLEDAlways-On Retina LTPO3 wide-angle OLED
Screen resolution422 × 514 pixels; 326 ppi; 1,245 mm² display area42mm: 374 × 446 pixels; 46mm: 416 × 496 pixels; 326 ppi
Display protectionFlat sapphire crystalIon-X glass (aluminum); sapphire crystal (titanium)
Display features3000 nits (peak); Wide-angle OLED2000 nits (peak); Wide-angle OLED

Connectivity

Connectivity specifications comparison
SpecificationApple Watch Ultra 3Apple Watch Series 11
Network / cellularGSM / HSPA / LTE / 5GGSM / HSPA / LTE / 5G
SIM / eSIMeSIMeSIM
Wi-FiWi-Fi 802.11 b/g/n, dual-bandWi-Fi 802.11 b/g/n, dual-band
Bluetooth5.3, A2DP, LE5.3, A2DP, LE
NFCSupported; Apple PaySupported; Apple Pay
Positioning / GNSSGPS (L1+L5), GLONASS, GALILEO, BDS, QZSSGPS, GLONASS, GALILEO, QZSS, BDS
Ultra Wideband (UWB)Ultra Wideband (UWB) support (gen2 chip)Ultra Wideband (UWB) support (gen2 chip)
Satellite featuresEmergency SOS via satellite—

Identity & design

Identity & design specifications comparison
SpecificationApple Watch Ultra 3Apple Watch Series 11
BrandAppleApple
ModelApple Watch Ultra 3Apple Watch Series 11
Announced2025, September 092025, September 09
Dimensions49 × 44 × 12 mm42mm: 42 × 36 × 9.7 mm; 46mm: 46 × 39 × 9.7 mm
WeightNatural titanium: 61.6 g; black titanium: 61.8 g42mm: aluminum GPS 30.3 g, GPS + Cellular 29.7 g, titanium 34.6 g; 46mm: aluminum GPS 37.8 g, GPS + Cellular 36.9 g, titanium 43.1 g
Build materialsTitanium case; sapphire crystal front; ceramic and sapphire crystal backAluminum or titanium case
Wrist size130–210 mm42mm: 130–200 mm; 46mm: 140–245 mm
Controls / buttonsCustomizable Action button; Digital Crown with haptic feedback; side buttonDigital Crown with haptic feedback; side button

Performance & software

Performance & software specifications comparison
SpecificationApple Watch Ultra 3Apple Watch Series 11
ProcessorApple S10; 4-core Neural EngineApple S10; 4-core Neural Engine
CPU64-bit dual-core64-bit dual-core
GPUPowerVRPowerVR
Storage64 GB64 GB
Operating systemwatchOS 26, upgradable to watchOS 27watchOS 26, upgradable to watchOS 27

Audio & communication

Audio & communication specifications comparison
SpecificationApple Watch Ultra 3Apple Watch Series 11
SpeakerDual speakers; sirenSupported
MicrophoneThree-microphone array with beamforming and wind-noise mitigationSupported
CallingCellular and Bluetooth calling; international emergency callingBluetooth calling; cellular calling on GPS + Cellular models

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationApple Watch Ultra 3Apple Watch Series 11
SensorsElectrical heart sensor, third-generation optical heart sensor, blood oxygen sensor, temperature sensor, depth gauge, water-temperature sensor, compass, always-on altimeter, high-g accelerometer, high-dynamic-range gyroscope and ambient-light sensorElectrical heart sensor; third-generation optical heart sensor; temperature sensor; compass; always-on altimeter; high-g accelerometer; high-dynamic-range gyroscope; ambient light sensor; depth gauge; water temperature sensor
Health & wellness featuresBlood Oxygen, ECG, Cycle Tracking, heart-rate notifications, irregular-rhythm notifications, medications, mindfulness and noise features; availability varies by regionECG app; blood oxygen feature where available; high and low heart-rate notifications; irregular rhythm notifications; temperature sensing; cycle tracking; mindfulness and medications apps
Sleep trackingSleep duration and sleep stagesSleep duration and sleep stages
Safety & emergency featuresEmergency SOS; international emergency calling; Fall Detection; Crash DetectionEmergency SOS; international emergency calling; Fall Detection; Crash Detection
Diving / depth featuresRecreational scuba diving to 40 m; depth gauge; water-temperature sensorDepth gauge to 6 m; water-temperature sensor
Sports / workout modes—Workout app with multiple workout types and automatic workout detection
Training & outdoor features—Training load; pace and heart-rate zones; compass waypoints and backtrack; depth and water-temperature metrics

Battery & durability

Battery & durability specifications comparison
SpecificationApple Watch Ultra 3Apple Watch Series 11
Battery lifeUp to 42 hours normal use; 72 hours Low Power ModeUp to 24 hours normal use; 38 hours Low Power Mode
ChargingMagnetic fast chargingMagnetic fast charging
Water resistance100 m under ISO 22810:201050 m; swimproof
Durability / certificationsIP6X dust resistance; MIL-STD-810H; EN13319IP6X dust resistance

Compatibility

Compatibility specifications comparison
SpecificationApple Watch Ultra 3Apple Watch Series 11
Phone compatibilityiPhone 11 or later; iOS 26 or lateriPhone 11 or later, including iPhone SE (2nd generation or later); iOS 26 or later
Companion appApple Watch app on iPhoneApple Watch app on iPhone
ColorsNatural, BlackSlate, Gold, Natural

Additional specifications

Additional specifications specifications comparison
SpecificationApple Watch Ultra 3Apple Watch Series 11
Case materialTitanium—
Military-grade resistanceMIL-STD-810H—
FlashlightSupported—
Pixels per inch326 ppi326 ppi
Peak brightnessUp to 3,000 nits peak; 1 nit minimumUp to 2,000 nits peak; 1 nit minimum
Cover / touchscreenSupportedSupported
Charging timeAbout 45 minutes to 80%About 30 minutes to 80%
Release statusAvailable. Released 2025, September 19Available. Released 2025, September 19
Model numbersA3281, A3282A3335, A3337, A3452, A3453
Card slotNoNo
CameraNoNo
3.5 mm headphone jackNoNo
USBNoNo
RadioNoNo
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK; HSDPA 850 / 1700(AWS) / 1900 / 2100 - USA, LATAM, CanadaHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK; HSDPA 850 / 1700(AWS) / 1900 / 2100 - USA, LATAM, Canada
4G bands1, 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, Canada1, 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 bandsSA/NSASA/NSA
Network speedHSPA, LTE, 5GHSPA, LTE, 5G
SAR (US)1.16 W/kg (head)1.19 W/kg (head)
SAR (EU)1.19 W/kg (head)0.97 W/kg (head)
Additional hardware featuresTemperature sensing (0.01˚ accuracy); Depth gauge (±1m accuracy)Temperature sensing (0.01˚ accuracy); Media playback
Battery typeRechargeable lithium-ionRechargeable lithium-ion

Similarities

  • Both belong to the Apple Watch platform.
  • Both support Wi-Fi 4.
  • Both use Bluetooth 5.3.
  • Both work with a companion app.
  • Both have NFC.
  • Both take ECG readings.

In summary

For most buyers the Apple Watch Ultra 3 is the better buy; the Apple Watch Series 11 makes sense if you want a lighter watch for all-day wear.

Back to compared products ↑

In-stock alternatives

Apple Watch UltraFor Apple Watch Ultra 3Apple Watch UltraView product ↗Apple Watch Ultra 2For Apple Watch Ultra 3Apple Watch Ultra 2View product ↗Apple Watch Ultra 4 49mmFor Apple Watch Series 11Apple Watch Ultra 4 49mmView product ↗

Menu
Need Help? +254 112891117
Back to Top

My Cart