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Apple Watch Series 11 vs Apple Watch Ultra 2

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

AppleWatch Series 11AppleWatch Ultra 2
Overview
ReleasedSeptember 2025September 2023
Display
Case sizes42 mm or 46 mm49 mm
PanelLTPO OLEDLTPO OLED
Peak brightness2,000 nits3,000 nits
Always-on displayYesYes
Display detailAlways-On Retina display with wide-angle OLEDs and LTPO3; 374 x 446 pixels (42mm) or 416 x 496 pixels (46mm) at 326 ppi; 989 or 1,220 sq mm display area; 1 nit minimum brightnessAlways-On Retina LTPO2 OLED display; 410 x 502 pixels at 326 ppi; 1,185 sq mm display area; 1 nit minimum brightness; Night Mode with the Modular Ultra or Wayfinder watch face
Screen protectionIon-X front glass with a ceramic coating, 2x more scratch resistant than Series 10 (aluminium cases); sapphire front crystal (titanium cases)Flat sapphire crystal front
Health and fitness
ECGYesYes
Blood oxygenYesYes
Skin temperatureYesYes
Sleep apnoea alertsYesYes
High blood pressure alertsYesYes
Body compositionNoNo
Fall detectionYesYes
Crash detectionYesYes
GPSSingle-bandDual-band (L1 and L5)
Water resistance50 m100 m
SensorsElectrical heart sensor; third-generation optical heart sensor; blood oxygen sensor; temperature sensor; compass; always-on altimeter; high-g accelerometer; high dynamic range gyroscope; ambient light sensor; depth gauge to 6 m; water temperature sensorElectrical heart sensor; third-generation optical heart sensor; temperature sensor; depth gauge to 40 m (±1 m accuracy); water temperature sensor; compass; always-on altimeter (–500 m to 9,000 m); high-g accelerometer (up to 256 g); high dynamic range gyroscope; ambient light sensor
Health featuresECG app; Blood Oxygen app; hypertension notifications; sleep apnoea notifications; irregular rhythm notifications; high and low heart rate notifications; Vitals app; sleep stages and sleep score; wrist temperature; Cycle Tracking with retrospective ovulation estimates; Medications; Mindfulness with state of mind tracking; NoiseVitals app (heart rate, respiratory rate, wrist temperature, blood oxygen and sleep duration); irregular rhythm notifications; high and low heart rate notifications; low cardio fitness notifications; sleep stages and sleep score; Cycle Tracking with retrospective ovulation estimates; Medications; Mindfulness with state of mind tracking; Noise
Fitness featuresCustom workouts; Training Load; heart rate zones; Race Route; Pacer; stride length, ground contact time and vertical oscillation; automatic track detection; multisport workouts; offline maps with custom route creation; Backtrack; pool and open-water swimming with SWOLF; cycling power zones with Bluetooth accessories; GymKitCustomisable Action button with Precision Start; custom workouts; Training Load; Heart Rate Zones; Race Route; Pacer; stride length, ground contact time and vertical oscillation; automatic track detection; multisport workouts; offline maps with custom route creation; elevation alerts; swimming with custom pool workouts, stroke type tracking and SWOLF; recreational diving to 40 m with the Depth app or a dive computer app from the App Store; cycling power zones and cadence with Bluetooth accessories; GymKit
Safety featuresEmergency SOS; international emergency calling; Crash Detection; Fall Detection; noise monitoring; BacktrackEmergency SOS; international emergency calling; Siren; Last Emergency Call Availability Waypoint; Check In; Backtrack; torch; noise monitoring
Battery and connections
Battery life (maker's claim)Up to 24 hoursUp to 36 hours
In low-power modeUp to 38 hoursUp to 3 days
Mobile data optionYesYes
Works withiPhoneiPhone
ChipS10S9
Storage64 GB64 GB
Battery life detailUp to 24 hours of normal use; up to 38 hours in Low Power ModeMulti-day figure tested over 36 hours with 600 time checks, 180 notifications, 30 minutes of app use and a 60-minute workout with music, including 8 hours on LTE; built-in rechargeable lithium-ion battery
ChargingFast charging to 80% in about 30 minutes; 15 minutes for up to 8 hours of normal use; 5 minutes for up to 8 hours of sleep trackingFast charging to 80% in about 1 hour
ConnectivityWi-Fi 4 (802.11n) at 2.4GHz and 5GHz; Bluetooth 5.3; second-generation Ultra Wideband chip; NFC for Apple Pay; L1 GPS, GLONASS, Galileo, QZSS and BeiDou; GPS + Cellular models (A3335, A3337) with 5G RedCap and LTEL1 + L5 precision dual-frequency GPS (GPS, GLONASS, Galileo, QZSS and BeiDou); 4G LTE and UMTS; Wi-Fi 4 (802.11n); Bluetooth 5.3; second-generation Ultra Wideband chip; Apple Pay
Design
Weight (lightest version)29.7 g61.4 g
SoftwarewatchOSwatchOS
Case materials100% recycled aluminium or 100% recycled titanium case; water resistant to 50 m (ISO 22810:2010); IP6X dust resistantGrade 5 titanium case (95% recycled titanium) with ceramic and sapphire crystal back; water resistant to 100 m (ISO 22810:2010); EN13319 recreational scuba diving to 40 m; IP6X dust resistant; tested to MIL-STD 810H
Size42mm is 42 x 36 x 9.7 mm; 46mm is 46 x 39 x 9.7 mm; lightest is the 42mm aluminium GPS + Cellular at 29.7 g, heaviest the 46mm titanium at 43.1 g49 x 44 x 12 mm; 61.4 g (natural) or 61.8 g (black)
BandsFits 130–200 mm wrists (42mm) or 140–245 mm wrists (46mm)Fits 130–210 mm wrists; Alpine Loop, Trail Loop and Ocean Band, plus Titanium Milanese Loop from September 2024
ColoursAluminium in Jet Black, Rose Gold, Silver and Space Grey; titanium in Natural, Gold and SlateNatural titanium; Black titanium from September 2024
In the boxApple Watch Series 11, strap, Apple Watch Magnetic Fast Charger to USB-C Cable (1 m)Apple Watch Ultra 2, strap, Apple Watch Magnetic Fast Charger to USB-C Cable (1 m)

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