Apple Watch SE 3 vs Apple Watch Ultra 3 comparison

Show Only Differences Highlight Differences	Apple Watch SE 3	Apple Watch Ultra 3
key specs
Display Size	40mm	49mm
Compatible OS	iOS 26	iOS 26
Dial Shape	Square	Square
Display Type	OLED Retina	OLED Retina
Ideal For	Unisex	Unisex
general
Brand	Apple	Apple
Model	Watch SE 3	Watch Ultra 3
Release date	September 9, 2025	September 9, 2025
Model Name	Watch SE 3	Watch Ultra 3
Dial Colour	Starlight, Midnight	Natural, Black
Dial Shape	Square	Square
Size	Regular	Large
Touchscreen	Yes	Yes
Interchangeable Strap	Yes	Yes
Water Resistant	WR50	WR100
Water Resistance Depth	50	100
Dial Material	Aluminum	Titanium
Ideal For	Unisex	Unisex
dimensions
Width	34	44
Height	40	49
Thickness	10.7	12
Weight (g)	26.30	61.60
product details
Compatible Device	iPhone 11 and above	iPhone 11 and above
Battery Life	Up to 24 hours	Up to 24 hours
Charger Type	Wireless	Wireless
connectivity features
Call Function	Yes	Yes
Bluetooth	Yes	Yes
Bluetooth Version	5.4	5.3
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Messaging Support	Yes	Yes
Other Connectivity Features	-	Satellite Emergency SoS
platform and storage features
Operating System	watchOS 26	watchOS 26
Compatible Operating System	iOS 26	iOS 26
Processor Name	Apple S10	Apple S11
Internal Memory	64GB	64GB
camera and display features
Display Size	40mm	49mm
Display Type	OLED Retina	OLED Retina
Other Display Features	-	Always-On Display
fitness and watch functions
Step Count	Yes	Yes
Calorie Count	Yes	Yes
Compass	Yes	Yes
Calendar	Yes	Yes
Alarm Clock	Yes	Yes
Date & Time Display	Yes	Yes
Heart Rate Monitor	-	Yes
Number of Buttons	-	3
audio and video features
Speaker	Yes	Yes
Gesture Control	Yes	Yes
Microphone	Yes	Yes
Voice Control	Yes	Yes

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