At the Apple event on 9 September 2026 (midnight on 10 September 2026 Thailand time), Apple unveiled the latest smartwatches: Apple Watch Series 12 and Apple Watch Ultra 4. These models go beyond being mere fitness watches, evolving into personal health assistants focused fully on longevity.
The key highlight of this upgrade is the new Health Sensing System paired with the S11 chip, enabling the heart rate sensor to deliver the highest accuracy. It collects live heart rate data every 5 seconds throughout the day. Additionally, it increases the measurement frequency of heart rate variability (HRV in vitals) to every 5 minutes. All this detailed data is processed into the Readiness Score feature to evaluate daily physical readiness on a 0–10 scale, providing real-time advice on whether to push forward or rest.
Moreover, the Health app on iPhone has been revamped to include a Longevity tab, featuring Health Age to compare biological age with actual age, plus assessments of muscle strength, balance and flexibility, on-demand VO2 max tests, and integration of Lab biomarkers data for precise in-depth health evaluations.
Beyond health features, the S11 chip in the new Apple Watch also powers Audio Intelligence to simplify daily life. This includes Sound Recognition for detecting alert sounds, Live Rewind to instantly replay the last 15 seconds of transcribed conversations, and Siri Recap for smart conversation summaries via Siri AI, all running on watchOS 27.
Another notable upgrade is improved durability with Ceramic Shield 2 screen glass and a new watch face displaying step count for easier goal tracking.
Although both Apple Watch Series 12 and Ultra 4 pack the powerful S11 chip and top-tier health features, Apple designed them to suit distinctly different lifestyles.
For those prioritizing daily wear, Apple Watch Series 12 offers a slim, elegant design with 42mm and 46mm case sizes, available in various materials from aluminum and titanium to premium ceramic, with a battery life of 24 hours.
Meanwhile, Apple Watch Ultra 4 targets adventurers, extreme sports enthusiasts, and endurance athletes seeking ultimate durability. It features a robust titanium case in Natural and Black colors, the most accurate GPS among sport watches, and a breakthrough battery lasting up to 50 hours under normal use and extending to 84 hours in power-saving mode. Both models support fast charging and have been officially launched.
In Thailand, the Apple Watch Series 12 GPS model starts at 14,900 baht for the 42mm size, and 15,900 to 16,900 baht for the 46mm size (US launch price $399). The Apple Watch Ultra 4 starts at 29,900 baht (US launch price $799). Sales begin on 18 September 2026. Thai fans can prepare to own these soon as Apple confirms the watches will be available in Thailand shortly.
Information and images: Apple