Apple Watch Ultra 4 vs Apple Watch Series 1 Smartwatch comparison

Compare Apple Watch Ultra 4
Compare Apple Watch Series 1 Smartwatch
key specs
Display Size49mm42mm
Dial ShapeRectangleRectangle
Display TypeOLED RetinaOLED Retina
Ideal ForUnisexUnisex
Strap Colour-White
Strap Material-Rubber
general
BrandAppleApple
ModelWatch Ultra 4Watch Series 1 Smartwatch
Release dateSeptember 9, 2026-
Dial ShapeRectangleRectangle
UsageRegular, SportsNotifier
Ideal ForUnisexUnisex
Model Number-MNNL2HN/A
Model Name-Watch Series 1
Strap Material-Rubber
Size-Regular
Touchscreen-Yes
Water Resistant-Yes
Dial Material-Aluminum
Strap Colour-White
Dial Colour-Black
product details
SensorHealth Sensing System, optical and electrical heart sensors, blood oxygen sensor, temperature sensor, depth gauge, water temperature sensor, compass, always-on altimeter, high-g accelerometer, gyroscope, ambient light sensorHeart Rate Sensor, Accelerometer, Gyrometer
Battery TypeRechargeable lithium-ion-
Battery Lifeup to 50 hours18 hours
Charger TypeMagnetic charging port-
Rechargeable BatteryYesYes
Compatible Device-Iphone 5, 5C, 5S, Se, 6, 6 Plus, 6S, 6S Plus, 7 Or 7 Plus And Ios 10 Or Later
Charge Time-90 min
Other Features-Splash Resistant2 (Apple Watch Series 1 Has A Water Resistance Rating Of Ipx7 Under Iec Standard 60529. Apple Watch Series 1 Is Splash And Water Resistant, But Submerging Apple Watch Series 1 Is Not Recommended)
connectivity features
Call FunctionYesYes
BluetoothYesYes
Wi-FiYesYes
GPSYesNo
Bluetooth Version-v4.0
Other Connectivity Features-Wi-Fi (802.11B/G/N)
platform and storage features
Operating SystemwatchOS 273
Processor NameApple S11 chipS1P
Internal Memory64GB-
camera and display features
Display Resolution422 × 514312 x 390 Pixels
Display Size49mm42mm
Display TypeOLED RetinaOLED Retina
Scratch ResistantSapphire crystal-
Other Display Features3000 nits peak brightness, 1 nit minimum brightness, 1Hz refresh rate, 326ppi, Night ModeOled Retina Display With Force Touch (450 Nits)
fitness and watch functions
Step CountYes-
Calorie CountYesYes
Heart Rate MonitorYesYes
AltimeterYes-
CompassYes-
CalendarYesYes
Alarm ClockYesYes
ChronographYes-
Date & Time DisplayYesDate & Time
LanguageEnglish-
Number of Buttons3-
Other Fitness FeaturesReadiness score, HRV, heart rate zones, Training Load, Workout Effort, VO2 max, custom workouts, race route, Pacer, cadence, stride length, running power, multisport workouts, cycling metrics, swimming metrics, diving, depth gauge, water temperature, GPS, elevation tracking, Backtrack and offline maps-
audio and video features
SpeakerYes-
Gesture ControlYes-
MicrophoneYes-
Voice ControlSiri AI-

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