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Apple Watch Ultra 3 vs Apple Watch Series 1 Smartwatch

Apple Watch Ultra 3 vs Apple Watch Series 1 Smartwatch comparison

Show Only Differences Highlight Differences	Apple Watch Ultra 3	Apple Watch Series 1 Smartwatch
key specs
Display Size	49mm	42mm
Compatible OS	iOS 26	-
Dial Shape	Square	Rectangle
Display Type	OLED Retina	OLED Retina
Ideal For	Unisex	Unisex
Strap Colour	-	White
Strap Material	-	Rubber
general
Brand	Apple	Apple
Model	Watch Ultra 3	Watch Series 1 Smartwatch
Release date	September 9, 2025	-
Model Name	Watch Ultra 3	Watch Series 1
Dial Colour	Natural, Black	Black
Dial Shape	Square	Rectangle
Size	Large	Regular
Touchscreen	Yes	Yes
Interchangeable Strap	Yes	-
Water Resistant	WR100	Yes
Water Resistance Depth	100	-
Dial Material	Titanium	Aluminum
Ideal For	Unisex	Unisex
Model Number	-	MNNL2HN/A
Strap Material	-	Rubber
Usage	-	Notifier
Strap Colour	-	White
dimensions
Width	44	-
Height	49	-
Thickness	12	-
Weight (g)	61.60	-
product details
Compatible Device	iPhone 11 and above	Iphone 5, 5C, 5S, Se, 6, 6 Plus, 6S, 6S Plus, 7 Or 7 Plus And Ios 10 Or Later
Battery Life	Up to 24 hours	18 hours
Charger Type	Wireless	-
Sensor	-	Heart Rate Sensor, Accelerometer, Gyrometer
Charge Time	-	90 min
Rechargeable Battery	-	Yes
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 Function	Yes	Yes
Bluetooth	Yes	Yes
Bluetooth Version	5.3	v4.0
Wi-Fi	Yes	Yes
GPS	Yes	No
Messaging Support	Yes	-
Other Connectivity Features	Satellite Emergency SoS	Wi-Fi (802.11B/G/N)
platform and storage features
Operating System	watchOS 26	3
Compatible Operating System	iOS 26	-
Processor Name	Apple S11	S1P
Internal Memory	64GB	-
camera and display features
Display Size	49mm	42mm
Display Type	OLED Retina	OLED Retina
Other Display Features	Always-On Display	Oled Retina Display With Force Touch (450 Nits)
Display Resolution	-	312 x 390 Pixels
fitness and watch functions
Step Count	Yes	-
Calorie Count	Yes	Yes
Heart Rate Monitor	Yes	Yes
Compass	Yes	-
Calendar	Yes	Yes
Alarm Clock	Yes	Yes
Date & Time Display	Yes	Date & Time
Number of Buttons	3	-
audio and video features
Speaker	Yes	-
Gesture Control	Yes	-
Microphone	Yes	-
Voice Control	Yes	-

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