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Watch comparison

Apple Series 11 vs Apple Ultra 4 49mm

Compare battery life, health tracking, display and fit.

Compared products
01Selected
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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02
Apple Watch Ultra 4 49mm

Apple Watch Ultra 4 49mm

  • 1.98 inch screen.
  • Apple S11 processor.
  • 64 GB storage in this version.
  • Runs watchOS 27.
  • Wi-Fi 4 support.
KSh 118,000In Stock
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Apple Watch Series 8KSh 50,000
Apple Watch UltraKSh 90,000
Apple Watch Series 9KSh 45,000
Apple Watch Series 10KSh 47,000
Amazfit T-Rex 3 ProKSh 55,000
WHOOP LifeKSh 55,500
WHOOP Life MGKSh 50,000
2 of 4 products

Our quick verdict

The Apple Watch Ultra 4 49mm lasts longer between charges (50 hours vs 24 hours), gives daily readiness scores and has a brighter screen for outdoor use, while the Apple Watch Series 11 is lighter to wear all day and has faster recharging (30 minutes).

Display

Apple Watch Series 11
42mm: 374 × 446 pixels; 46mm: 416 × 496 pixels; 326 ppi
Apple Watch Ultra 4 49mm
422 × 514 pixels; 326 ppi; 1,245 mm² display area

Performance

Apple Watch Series 11
Apple S10; 4-core Neural Engine processor
Apple Watch Ultra 4 49mm
Apple S11 processor

Software

Apple Watch Series 11
Runs watchOS 26, upgradable to watchOS 27
Apple Watch Ultra 4 49mm
Runs watchOS 27

Battery life

Apple Watch Series 11
Up to 24 hours per charge
Apple Watch Ultra 4 49mm
Up to 50 hours per charge

Portability

Apple Watch Series 11
30.3 g
Apple Watch Ultra 4 49mm
63 g

Key differences

The main differences to help you choose.

Apple Watch Series 11

  • Lighter: 30.3 g (vs 63 g).
  • Recharges faster: 30 minutes (vs 45 minutes).
  • Slimmer: 9.7 mm thick (vs 12 mm).

Apple Watch Ultra 4 49mm

  • Longer battery life: up to 50 hours (vs 24 hours).
  • Rated for up to 50 hours per charge (vs 24).
  • Brighter display: up to 3,000 nits (vs 2,000).
  • Daily readiness scores.
  • Rated for free diving to 40 m.
  • Blood-pressure (hypertension) notifications.

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 11Apple Watch Ultra 4 49mm
Battery lifeUp to 24 hours per chargeUp to 50 hours per charge
Storage64 GB storage64 GB storage
DisplayOLED display, 326 ppi1.98-inch OLED display, 326 ppi
PerformanceApple S10 processorApple S11 processor
SoftwarewatchOS 26watchOS 27
Water resistance50 m100 m under ISO 22810:2010

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationApple Watch Series 11Apple Watch Ultra 4 49mm
DisplayAlways-On Retina LTPO3 wide-angle OLEDRetina LTPO3 OLED, 3000 nits (peak); 1.98 inches
Screen resolution42mm: 374 × 446 pixels; 46mm: 416 × 496 pixels; 326 ppi422 × 514 pixels; 326 ppi; 1,245 mm² display area
Display protectionIon-X glass (aluminum); sapphire crystal (titanium)Sapphire crystal
Display features2000 nits (peak); Wide-angle OLED3000 nits (peak); Wide-angle OLED

Connectivity

Connectivity specifications comparison
SpecificationApple Watch Series 11Apple Watch Ultra 4 49mm
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 PayYes
Positioning / GNSSGPS, GLONASS, GALILEO, QZSS, BDSGPS (L1+L5), GLONASS, GALILEO, BDS, QZSS
Ultra Wideband (UWB)Ultra Wideband (UWB) support (gen2 chip)Ultra Wideband (UWB) support (gen2 chip)
Satellite features—Emergency SOS via satellite

Identity & design

Identity & design specifications comparison
SpecificationApple Watch Series 11Apple Watch Ultra 4 49mm
BrandAppleApple
ModelApple Watch Series 11Apple Watch Ultra 4 49mm
Announced2025, September 092026, September 09
Dimensions42mm: 42 × 36 × 9.7 mm; 46mm: 46 × 39 × 9.7 mm49 x 44 x 12 mm (1.93 x 1.73 x 0.47 in)
Weight42mm: 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 gNatural titanium: 63.0 g; black titanium: 63.1 g
Build materialsAluminum or titanium caseGrade 5 titanium case; sapphire crystal front; ceramic and sapphire crystal back
Wrist size42mm: 130–200 mm; 46mm: 140–245 mm130–210 mm
Controls / buttonsDigital Crown with haptic feedback; side buttonCustomizable Action button; Digital Crown with haptic feedback; side button; single tap, double tap and wrist flick gestures
Strap / band—Included band; style depends on the selected configuration

Performance & software

Performance & software specifications comparison
SpecificationApple Watch Series 11Apple Watch Ultra 4 49mm
ProcessorApple S10; 4-core Neural EngineApple S11
CPU64-bit dual-coreDual-core
GPUPowerVRPowerVR
Storage64 GB64GB
Operating systemwatchOS 26, upgradable to watchOS 27watchOS 27

Audio & communication

Audio & communication specifications comparison
SpecificationApple Watch Series 11Apple Watch Ultra 4 49mm
SpeakerSupportedDual speakers; media playback; siren
MicrophoneSupportedThree-microphone array with beamforming and wind-noise mitigation
CallingBluetooth calling; cellular calling on GPS + Cellular modelsCellular and Bluetooth calling; international emergency calling

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationApple Watch Series 11Apple Watch Ultra 4 49mm
SensorsElectrical 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 sensorElectrical heart sensor; always-on optical heart sensor; blood oxygen sensor; temperature sensor; depth gauge; water-temperature sensor; compass; always-on altimeter; high-g accelerometer; high dynamic-range gyroscope; ambient-light sensor
Health & wellness featuresECG app; blood oxygen feature where available; high and low heart-rate notifications; irregular rhythm notifications; temperature sensing; cycle tracking; mindfulness and medications appsHeart rate; HRV; blood oxygen; ECG; wrist temperature; respiratory rate; Readiness; Vitals; cycle tracking; high/low heart-rate, irregular rhythm and hypertension notifications (regional availability)
Sleep trackingSleep duration and sleep stagesSleep duration; sleep stages; sleep score; sleep-apnea notifications (regional availability)
Sports / workout modesWorkout app with multiple workout types and automatic workout detectionRunning; hiking; cycling; pool and open-water swimming; skiing; snowboarding; rowing; paddling; golf; walking; HIIT; yoga; strength; dance; Pilates; Tai Chi; kickboxing; multisport and more
Training & outdoor featuresTraining load; pace and heart-rate zones; compass waypoints and backtrack; depth and water-temperature metricsCustom workouts and views; Training Load and Workout Effort; heart-rate zones; VO₂ max; Race Route; Pacer; running dynamics; automatic track detection; offline maps, routes, waypoints, Backtrack and elevation alerts
Safety & emergency featuresEmergency SOS; international emergency calling; Fall Detection; Crash DetectionEmergency SOS; satellite SOS and messaging; international emergency calling; siren; flashlight; Fall Detection; Crash Detection; Check In; noise monitoring; emergency waypoints
Diving / depth featuresDepth gauge to 6 m; water-temperature sensorRecreational scuba diving to 40 m; automatic dive launch at 1 m; current/maximum depth and duration; GPS entry/exit points; depth gauge and water temperature

Battery & durability

Battery & durability specifications comparison
SpecificationApple Watch Series 11Apple Watch Ultra 4 49mm
Battery lifeUp to 24 hours normal use; 38 hours Low Power ModeUp to 50 hours normal use; 84 hours Low Power Mode; 18 hours workout tracking; 25 hours Extended Workout; 45 hours Max Extended Workout
ChargingMagnetic fast chargingMagnetic fast charging; up to 80% in about 45 minutes
Water resistance50 m; swimproof100 m under ISO 22810:2010; suitable for swimming, snorkeling, scuba and high-speed water sports
Durability / certificationsIP6X dust resistanceIP6X dust resistance under IEC 60529; EN 13319 recreational diving to 40 m; tested to MIL‑STD‑810H
Battery capacity—Li-Ion 631 mAh

Compatibility

Compatibility specifications comparison
SpecificationApple Watch Series 11Apple Watch Ultra 4 49mm
Phone compatibilityiPhone 11 or later, including iPhone SE (2nd generation or later); iOS 26 or lateriPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 27 or later
Companion appApple Watch app on iPhoneApple Watch app on iPhone
ColorsSlate, Gold, NaturalNatural, Black

Additional specifications

Additional specifications specifications comparison
SpecificationApple Watch Series 11Apple Watch Ultra 4 49mm
Pixels per inch326 ppi326 ppi
Peak brightnessUp to 2,000 nits peak; 1 nit minimumUp to 3,000 nits peak; 1 nit minimum
Cover / touchscreenSupportedSupported
Charging timeAbout 30 minutes to 80%About 45 minutes to 80%; 15 minutes for up to 18 hours normal use; 5 minutes for up to 10 hours sleep tracking
Release statusAvailable. Released 2025, September 19Available. Released 2026, September 18
Model numbersA3335, A3337, A3452, A3453A3579
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
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, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 38, 39, 40, 41, 53, 66, 71
5G bandsSA/NSA1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 38, 40, 41, 53, 66, 71 SA/NSA
Network speedHSPA, LTE, 5GHSPA, LTE, 5G
SAR (US)1.19 W/kg (head)—
SAR (EU)0.97 W/kg (head)—
Additional hardware featuresTemperature sensing (0.01˚ accuracy); Media playbackHealth Sensing System: third‑generation electrical heart sensor, always‑on optical heart sensor, blood oxygen sensor, temperature sensor; Temperature sensing (0.01˚ accuracy); Depth gauge (±1m accuracy)
Battery typeRechargeable lithium-ion—
Case material—Grade 5 titanium
Military-grade resistance—MIL-STD-810H
Flashlight—Supported
Display material—LTPO3 wide-angle OLED
Packing list—Apple Watch Ultra 4; band; 1 m magnetic fast-charger to USB-C cable

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 4 49mm 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 Series 8For Apple Watch Series 11Apple Watch Series 8View product ↗WHOOP Life MGFor Apple Watch Series 11WHOOP Life MGView product ↗Apple Watch Ultra 2For Apple Watch Ultra 4 49mmApple Watch Ultra 2View product ↗Apple Watch UltraFor Apple Watch Ultra 4 49mmApple Watch UltraView product ↗

Related comparisons

Apple Watch Series 8Apple Watch Series 11Apple Watch UltraApple Watch Series 11Apple Watch Series 9Apple Watch Series 11Apple Watch Series 10Apple Watch Series 11Amazfit T-Rex 3 ProApple Watch Series 11WHOOP LifeApple Watch Series 11Apple Watch Series 11WHOOP Life MGApple Watch Series 11Apple Watch Series 12 42mmApple Watch Series 11Huawei Watch 6 Pro 46 mm
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