Apple Watch Series 11, SE 3 & Ultra 3 — Which One’s Right for You? (Sept 2025)
Apple introduced a completely refreshed Apple Watch lineup in September 2025: the flagship Apple Watch Series 11, the revamped budget model Apple Watch SE 3, and the premium outdoor-focused Apple Watch Ultra 3. Below is a concise guide to help you pick the best model for your needs.
Quick highlights
- Series 11: Best for most users — brighter LTPO3 OLED, new hypertension detection, ECG/blood oxygen, S10 SiP.
- SE 3: Entry-level option with core sensors and features at the lowest price point.
- Ultra 3: Biggest battery (claimed ~42 hours), titanium case, water depth gauge, satellite SOS & messaging.
Key specs at a glance
- Chip: All three use the S10 SiP with on-device Siri and AI features.
- Displays: Always-on OLED — Series 11 (up to 2,000 nits), SE 3 (1,000 nits), Ultra 3 (3,000 nits + night mode).
- Battery: Ultra 3 ~42h (72h low-power), Series 11 ~24h (38h low-power), SE 3 ~18h (32h low-power).
- Sensors: Series 11 & Ultra 3 include ECG, blood oxygen, advanced heart monitor (hypertension detection); SE 3 has core optical sensors.
- Water resistance: Series 11 & SE 3 — 50m; Ultra 3 — 100m with depth gauge.
- Price (starting): SE 3 $249, Series 11 $399, Ultra 3 $799.
Who should buy which?
- Buy Series 11 if you want the best balance of health features, screen brightness and price for everyday use.
- Buy SE 3 if you want an Apple Watch experience at the lowest price and don’t need advanced sensors.
- Buy Ultra 3 if you need rugged durability, the longest battery life and advanced outdoor features (diving, satellite SOS).
Where to learn more / shop
- Official Apple product page (Series 11 & general watch info): https://www.apple.com/apple-watch-series-11/
- Amazon (search/affiliate links):
- Series 11: https://www.amazon.com/s?k=Apple+Watch+Series+11&tag=f1rede-20
- Ultra 3: https://www.amazon.com/s?k=Apple+Watch+Ultra+3&tag=f1rede-20
- SE 3: https://www.amazon.com/s?k=Apple+Watch+SE+3&tag=f1rede-20
Notes
All three watches require an iPhone to set up and use. Cellular models add network independence (5G on Series 11 & SE 3 cellular versions; Ultra 3 includes cellular as standard). Always check retailers for availability and exact pricing by case size and band options.
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Posted: September 2025 — product announcements and pre-order details from Apple.