Smartwatches / Apple
Apple Watch Series 11 (42mm, GPS, Aluminum)
The most complete smartwatch you can buy — if you will never own anything but an iPhone.
Overall score 7.5/10
Pros
- + Hypertension notifications and sleep apnea notifications are both FDA-cleared and switched on in the US, which is rarer than the marketing implies
- + Native watchOS App Store dwarfs every Wear OS and proprietary rival here
- + Every health metric is free — no Fitbit Premium / Zepp Aura / Connect+ equivalent
- + Flat $99 battery service from Apple, versus makers who will not replace a battery at all
Cons
- − iPhone-only, permanently: switch to Android and the watch becomes unusable and unsellable to Android buyers
- − 24 hours is still last place among everything here except the SE — overnight sleep tracking forces a second daily charge
- − Blood Oxygen is still the post-litigation workaround: the watch collects, the iPhone computes
- − Cellular is a $100 pricier SKU plus a monthly carrier line, and the ASIN is different
Apple Watch Series 11 (42mm, GPS, Aluminum) review: what the specs say
The most complete smartwatch you can buy — if you will never own anything but an iPhone. At $399, Apple's 2025 model sits in the middle of the range — the smartwatches we compare run from $79.99 to $799. It scores 7.5/10 overall, calculated from published specifications across 8 categories rather than from a subjective impression.
Its strongest showing is App Ecosystem at 10.0/10 — whether there is a real third-party app store on the wrist or a handful of proprietary mini-apps. The weakest is Ecosystem Freedom at 1.0/10, which is the trade-off to weigh before buying: if that is the specification you care about most, one of the alternatives below will serve you better.
Worth knowing before you buy: iPhone-only, permanently: switch to Android and the watch becomes unusable and unsellable to Android buyers; and 24 hours is still last place among everything here except the SE — overnight sleep tracking forces a second daily charge. Every specification on this page comes from Apple's own documentation or a verified retail listing — where a figure is not published, the table says so rather than estimating it.
Specifications and price last verified . Report an error
Full Specifications
| Phone Compatibility | iPhone only. Requires iPhone 11 or later running iOS 26 or later. There is no Android support and never has been — an Apple Watch is permanently bricked as a smartwatch if you switch to Android. |
| Claimed Battery Life | 24 hrs |
| What the Battery Claim Assumes | Apple's 24 h figure is measured with the always-on display active, 90 time checks, 90 notifications, 15 min of app use and one 60-minute workout with music played from the watch. It does NOT include LTE use or overnight sleep tracking; sleep tracking means you must find a second charging window in your day. |
| Case Size | 42 mm |
| Display | LTPO3 wide-angle OLED, always-on, up to 2000 nits |
| Operating System | watchOS 26 |
| Third-Party Apps | Full on-device App Store with native watchOS apps — by far the deepest third-party catalogue in this category |
| Health Features Enabled in the US | Live in the US: ECG, irregular rhythm notifications, high/low heart rate alerts, sleep apnea notifications and hypertension notifications (all FDA-cleared). Blood Oxygen works but, following the Masimo patent case, the redesigned US version collects data on the watch and calculates the reading on the paired iPhone; the ITC closed the import-ban case in Apple's favour on 17 April 2026. |
| Subscription Wall | No subscription is required for any health or fitness metric. Apple Fitness+ ($9.99/mo) is optional and only adds guided workout classes. |
| LTE Option | Separate SKU: GPS + Cellular starts at $499, a $100 upcharge, and needs its own carrier line (typically $10/mo). |
| Water & Dust Rating | 50 m water resistant (WR50), IP6X dust resistant |
| Battery Replacement | Apple out-of-warranty battery service is a flat $99. AppleCare+ only covers the battery once capacity has fallen below 80%. |
| Connectivity | Bluetooth, Wi-Fi, NFC, Optional 5G cellular (separate SKU) |
| Material | 100% recycled aluminum case with Ion-X strengthened front glass |
| Warranty | 12 months |
Compare Apple Watch Series 11 (42mm, GPS, Aluminum) With
Cheaper Alternative
Apple Watch SE 3 (40mm, GPS, Aluminum) — $249.00
Premium Alternative
Google Pixel Watch 5 (41mm, Wi-Fi) — $399.99