The Apple Watch Series 6 (released 2020) features an S6 SiP chip (20% faster than Series 5), a blood oxygen (SpO2) sensor, ECG app, and an always-on altimeter. It offers a 2.5x brighter outdoor Always-On Retina display40mm or 44mm sizes, and up to 18 hours of battery life.
Key Features & Details
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- Health & Fitness: Includes Blood Oxygen sensor, Electrical heart sensor (ECG), and third-generation optical heart sensor.
- Display: Always-On Retina LTPO OLED display with up to 1000 nits brightness.
- Performance: S6 64-bit dual-core processor, 5GHz Wi-Fi, and U1 Ultra Wideband chip.
- Design: Available in 40mm (324×394 pixels) or 44mm (368×448 pixels) cases, swim-proof, with diverse finishes.
- Battery: Approximately 18 hours, with faster charging than previous models, though slower than Series 7.
Considerations in 2026
- Support: It may be in its final year of receiving software updates,
- Missing Features: Lacks newer, advanced sensors like temperature sensing or hypertension alerts found on newer models.
- Value: Often available as a budget-friendly refurbished option, sometimes around $150–$170








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