Apple Watch Ultra 4 vs Apple Watch Series 12: Every Difference Detailed!

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1. 1h ago

   Apple Watch Ultra 4 and Series 12 Details Compared

   Reviewers have released detailed comparisons and performance evaluations for the newly launched Apple Watch Ultra 4 and Apple Watch Series 12. Publications including DC Rainmaker, CNET, and AppleInsider published comprehensive breakdowns contrasting the two models. Tests from Lifehacker and Outside Magazine evaluated the Ultra 4 against competing devices like Garmin, examining its new heart rate sensor, readiness score, and battery life. Additional guides from MacRumors offer upgrade advice for owners of older Ultra iterations. Separately, Gear Patrol reported on a hidden new setting within the Apple Watch software.

   Why it matters

   The release of the Apple Watch Ultra 4 and Apple Watch Series 12 introduces updated hardware and health monitoring software to Apple's smartwatch lineup. Reviewers are evaluating whether these upgrades justify the transition from older generations like the Ultra 2. Independent testing of features such as heart rate sensors and readiness scores provides buyers with comparative metrics against established fitness brands.

   What is confirmed

   • DC Rainmaker and AppleInsider published detailed breakdowns and reviews covering the Apple Watch Ultra 4 and Apple Watch Series 12.
   • Lifehacker and Outside Magazine tested the Apple Watch Ultra 4 hardware features, including its new heart rate sensor, readiness score, and battery life.
   • MacRumors published a buyer guide comparing the Apple Watch Ultra 2 and the Ultra 4.
   • Gear Patrol reported on a hidden new setting available on Apple Watch devices.

   Still unconfirmed

   • Performance of the new Apple Watch heart rate sensor definitively surpasses Garmin sensors in all conditions.

   What to watch next

   • Long-term battery degradation tests for the Apple Watch Ultra 4 under harsh outdoor conditions.
   • Further independent diagnostic reports on the accuracy of the new heart rate sensor relative to dedicated chest strap monitors.
   • Official software updates addressing any newly discovered hidden settings or bugs.
   Sources used for this update (8)

   1. DC Rainmaker — Apple Watch Ultra 4 vs Apple Watch Series 12: Every Difference Detailed!
   2. CNET — Apple Watch Ultra 4 Review: It Just Keeps Getting Better
   3. Lifehacker — I Tested the Apple Watch's New Heart Rate Sensor to See If It's Really Better Than Garmin's
   4. MacRumors — Apple Watch Ultra 2 vs. Ultra 4 Buyer's Guide: Should You Upgrade?
   5. Gear Patrol — The Apple Watch Has a Hidden New Setting You Probably Didn’t Know About
   6. AppleInsider — Apple Watch Ultra 4 review: An end-to-end health ecosystem
   7. SlashGear — Aluminum Vs. Ceramic Vs. Titanium Apple Watch: What's The Difference?
   8. Outside Magazine — I Tested the New Apple Ultra 4’s Readiness Score and Battery Life. Here’s Why It's Worth the Upgrade.
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