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Watch comparison

Apple Series 9 vs Apple Series 11

Compare battery life, health tracking, display and fit.

Compared products
01Selected
Apple Watch Series 9

Apple Watch Series 9

  • Screen: 41mm: 352 × 430 pixels; 45mm: 396 × 484 pixels.
  • Apple S9; 4-core Neural Engine processor.
  • 64 GB storage in this version.
  • Runs watchOS 10, upgradable to watchOS 27.
  • Wi-Fi 4 support.
KSh 45,000In Stock
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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
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Apple Watch UltraKSh 90,000
Samsung Galaxy Watch 6KSh 22,500
2 of 4 products

Our quick verdict

The Apple Watch Series 11 is the better buy: it lasts longer per charge (24 hours), is lighter to wear all day and has faster recharging (30 minutes).

Display

Apple Watch Series 9
41mm: 352 × 430 pixels; 45mm: 396 × 484 pixels
Apple Watch Series 11
42mm: 374 × 446 pixels; 46mm: 416 × 496 pixels; 326 ppi

Performance

Apple Watch Series 9
Apple S9; 4-core Neural Engine processor
Apple Watch Series 11
Apple S10; 4-core Neural Engine processor

Software

Apple Watch Series 9
Runs watchOS 10, upgradable to watchOS 27
Apple Watch Series 11
Runs watchOS 26, upgradable to watchOS 27

Battery life

Apple Watch Series 9
Up to 18 hours per charge
Apple Watch Series 11
Up to 24 hours per charge

Portability

Apple Watch Series 9
31.9 g
Apple Watch Series 11
30.3 g

Key differences

The main differences to help you choose.

Apple Watch Series 9

  • OLED display.
  • Apple S9 processor.
  • 64 GB storage.
  • Up to 18 hours per charge.

Apple Watch Series 11

  • Rated for up to 24 hours per charge (vs 18).
  • Lighter: 30.3 g (vs 31.9 g).
  • Recharges faster: 30 minutes (vs 45 minutes).
  • Slimmer: 9.7 mm thick (vs 10.7 mm).
  • Depth gauge for snorkelling (to 6 m).
  • Newer model: released in 2025 (vs 2023).

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 Series 9Apple Watch Series 11
Battery lifeUp to 18 hours per chargeUp to 24 hours per charge
Storage64 GB storage64 GB storage
DisplayOLED displayOLED display, 326 ppi
PerformanceApple S9 processorApple S10 processor
SoftwarewatchOS 10watchOS 26
ConnectionsWi-Fi 4, Bluetooth 5.3Wi-Fi 4, Bluetooth 5.3

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationApple Watch Series 9Apple Watch Series 11
DisplayAlways-On Retina LTPO OLEDAlways-On Retina LTPO3 wide-angle OLED
Screen resolution41mm: 352 × 430 pixels; 45mm: 396 × 484 pixels42mm: 374 × 446 pixels; 46mm: 416 × 496 pixels; 326 ppi
Display protectionIon-X glass (aluminum); sapphire crystal (stainless steel)Ion-X glass (aluminum); sapphire crystal (titanium)
Display features2000 nits (peak)2000 nits (peak); Wide-angle OLED

Connectivity

Connectivity specifications comparison
SpecificationApple Watch Series 9Apple Watch Series 11
Network / cellularGSM / HSPA / LTEGSM / 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, GLONASS, GALILEO, QZSS, BDSGPS, GLONASS, GALILEO, QZSS, BDS
Ultra Wideband (UWB)Ultra Wideband (UWB) support (gen2 chip)Ultra Wideband (UWB) support (gen2 chip)

Identity & design

Identity & design specifications comparison
SpecificationApple Watch Series 9Apple Watch Series 11
BrandAppleApple
ModelApple Watch Series 9Apple Watch Series 11
Announced2023, September 122025, September 09
Dimensions41mm: 41 × 35 × 10.7 mm; 45mm: 45 × 38 × 10.7 mm42mm: 42 × 36 × 9.7 mm; 46mm: 46 × 39 × 9.7 mm
Weight41mm: aluminum GPS 31.9 g, GPS + Cellular 32.1 g, stainless steel 42.3 g; 45mm: aluminum GPS 38.7 g, GPS + Cellular 39.0 g, stainless steel 51.5 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 materialsAluminum or stainless-steel case; ceramic and sapphire crystal backAluminum or titanium case
Wrist size41mm: 130–200 mm; 45mm: 140–245 mm42mm: 130–200 mm; 46mm: 140–245 mm
Controls / buttonsDigital Crown with haptic feedback; side buttonDigital Crown with haptic feedback; side button

Performance & software

Performance & software specifications comparison
SpecificationApple Watch Series 9Apple Watch Series 11
ProcessorApple S9; 4-core Neural EngineApple S10; 4-core Neural Engine
CPU64-bit dual-core64-bit dual-core
GPUPowerVRPowerVR
Storage64 GB64 GB
Operating systemwatchOS 10, upgradable to watchOS 27watchOS 26, upgradable to watchOS 27

Audio & communication

Audio & communication specifications comparison
SpecificationApple Watch Series 9Apple Watch Series 11
SpeakerSupportedSupported
MicrophoneSupportedSupported
CallingBluetooth calling; cellular calling on GPS + Cellular modelsBluetooth calling; cellular calling on GPS + Cellular models

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationApple Watch Series 9Apple Watch Series 11
SensorsElectrical heart sensor; third-generation optical heart sensor; temperature sensor; compass; always-on altimeter; high-g accelerometer; high-dynamic-range gyroscope; 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 featuresECG app; blood oxygen feature where available; high and low heart-rate notifications; irregular rhythm notifications; temperature sensing; cycle trackingECG 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
Sports / workout modesWorkout app with multiple workout types and automatic workout detectionWorkout app with multiple workout types and automatic workout detection
Training & outdoor featuresPace and heart-rate zones; compass waypoints and backtrackTraining load; pace and heart-rate zones; compass waypoints and backtrack; depth and water-temperature metrics
Safety & emergency featuresEmergency SOS; international emergency calling; Fall Detection; Crash DetectionEmergency SOS; international emergency calling; Fall Detection; Crash Detection
Diving / depth features—Depth gauge to 6 m; water-temperature sensor

Battery & durability

Battery & durability specifications comparison
SpecificationApple Watch Series 9Apple Watch Series 11
Battery lifeUp to 18 hours normal use; 36 hours Low Power ModeUp to 24 hours normal use; 38 hours Low Power Mode
ChargingMagnetic fast chargingMagnetic fast charging
Water resistance50 m; swimproof50 m; swimproof
Durability / certificationsIP6X dust resistanceIP6X dust resistance

Compatibility

Compatibility specifications comparison
SpecificationApple Watch Series 9Apple Watch Series 11
Phone compatibilityiPhone XS or later; iOS 17 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
ColorsGraphite, Silver, Gold, RedSlate, Gold, Natural

Additional specifications

Additional specifications specifications comparison
SpecificationApple Watch Series 9Apple Watch Series 11
Pixels per inch326 ppi326 ppi
Peak brightnessUp to 2,000 nits; 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 2023, September 22Available. Released 2025, September 19
Model numbersA2982, A2984, A2983, A2985, Watch7,3, Watch7,4A3335, 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
Network speedHSPA, LTEHSPA, LTE, 5G
SAR (US)1.02 W/kg (head)1.19 W/kg (head)
SAR (EU)0.64 W/kg (head)0.97 W/kg (head)
Additional hardware featuresTemperature sensing (0.01˚ accuracy)Temperature sensing (0.01˚ accuracy); Media playback
Battery typeRechargeable lithium-ionRechargeable lithium-ion
5G bands—SA/NSA

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

The Apple Watch Series 11 is the better buy for almost everyone, with longer rated battery life and a lighter watch for all-day wear.

Back to compared products ↑

In-stock alternatives

Samsung Galaxy Watch UltraFor Apple Watch Series 9Samsung Galaxy Watch UltraView product ↗Google Pixel Watch 4For Apple Watch Series 9Google Pixel Watch 4View product ↗Apple Watch Series 8For Apple Watch Series 11Apple Watch Series 8View product ↗Apple Watch Series 10For Apple Watch Series 11Apple Watch Series 10View product ↗

Related comparisons

Apple Watch Series 9Apple Watch SE 3Apple Watch Series 8Apple Watch Series 9Apple Watch Series 9Apple Watch Series 10
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