Overview
- IMTEST’s test for Berliner Morgenpost gives the Series 11 a 1.90 (good) rating and notes minimal changes from the prior model.
- In practical use the battery lasted about 25 hours, which is an improvement over the Series 10 but well short of multi‑day rivals.
- The aluminum version adds tougher Ion‑X glass, the display remains bright and readable outdoors, and the watch is comfortable for day and night wear.
- Health features include heart-rate and blood-oxygen tracking, sleep and temperature data, ECG, and alerts that can flag signs of chronic high blood pressure.
- Navigation accuracy was strong in testing, and buyers can choose between GPS-only and GPS plus Cellular models for standalone calling and messaging.