Apple Watch Series 12 vs Fitbit Ace LTE comparison

Show Only Differences Highlight Differences	Apple Watch Series 12	Fitbit Ace LTE
key specs
Display Size	46mm	-
Dial Shape	Rectangle	Rectangle
Display Type	OLED Retina	OLED
Ideal For	Unisex	Unisex
general
Brand	Apple	Fitbit
Model	Watch Series 12	Ace LTE
Release date	September 9, 2026	May 29, 2024
Dial Shape	Rectangle	Rectangle
Usage	Regular, Sports	Regular
Ideal For	Unisex	Unisex
Water Resistance Depth	-	50 m
product details
Sensor	New optical and electrical heart sensors, optical heart sensor	-
Compatible Device	iPhone 11 or later, or iPhone SE (2nd generation or later), with iOS 27 or later	-
Battery Life	24 hours	16 hours
Charger Type	Magnetic charging port	USB Type-C
Rechargeable Battery	Yes	-
Other Features	Readiness score, Siri AI	-
Battery Type	-	328mAh
connectivity features
Call Function	Yes	Yes
Bluetooth	Yes	Yes
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Bluetooth Version	-	5.0
platform and storage features
Operating System	watchOS 27	-
Processor Name	Apple S11 chip	-
camera and display features
Display Resolution	416 × 496	-
Display Size	46mm	-
Display Type	OLED Retina	OLED
Scratch Resistant	Ceramic Shield 2 on aluminium models	-
Other Display Features	Up to 2,000 nits brightness, LTPO3, Always-On display	Corning Gorilla Glass 3
fitness and watch functions
Step Count	Yes	Yes
Calorie Count	Yes	-
Heart Rate Monitor	Yes	Yes
Altimeter	Yes	-
Compass	Yes	-
Calendar	Yes	Yes
Alarm Clock	Yes	Yes
Chronograph	Yes	-
Date & Time Display	Yes	Yes
Language	English	English
Number of Buttons	2	-
Other Fitness Features	ECG, sleep tracking, sleep score, sleep apnoea notifications, heart rate notifications, HRV, readiness score, VO2 max, heart rate zones, Training Load, workout tracking, cycle tracking, step tracking, GPS, elevation tracking	-
audio and video features
Speaker	Yes	Yes
Gesture Control	Yes	-
Microphone	Yes	Yes
Voice Control	Siri AI	-
dimensions
Width	-	41.04
Height	-	13.35
Diameter	-	44.89
Weight (g)	-	28.03

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