
Apple
Apple Series 6 40mm Graphite Stainless Steel Watch
Premium graphite stainless steel smartwatch with blood oxygen monitoring, ECG, and cellular connectivity.
$145.61*
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*Price sourced from Amazon.com. Last updated:Oct 09, 2026.Price and availability are subject to change — details.
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Overview
Key Features
Blood Oxygen Monitoring: Built-in sensor measures blood oxygen levels to provide additional health and wellness insights.
Specifications
Model
Apple Watch Series 6 (GPS + Cellular)
Case Size
40mm
Case Material
Graphite Stainless Steel
Band
Black Sport Band
Display
Always-On Retina LTPO OLED
Connectivity
Cellular, GPS, Bluetooth 5.0
Operating System
watchOS
Health Sensors
Blood Oxygen (SpO2), ECG, Optical Heart Rate
Water Resistance
Up to 164 feet (50 meters)
Storage
32GB
Condition
Renewed (Tested and Certified)
Frequently Asked Questions
Does this Apple Watch Series 6 work without an iPhone nearby?
Yes, the GPS + Cellular model can make calls, send texts, and stream music independently when connected to a cellular plan, even without your iPhone nearby.
What is the case material on this model?
This model features a graphite stainless steel case, which is more durable and scratch-resistant than the standard aluminum version.
Is this a renewed product, and what does that mean?
Yes, this is a renewed (refurbished) Apple Watch that has been tested and certified to look and function like new, offering the same features at a lower price point.
Is the 40mm case size suitable for larger wrists?
The 40mm is the smaller of the two Series 6 sizes. It works well for slimmer wrists, but those with larger wrists may prefer the 44mm variant for better readability and comfort.
What health sensors are built into this watch?
It includes a blood oxygen (SpO2) sensor, an electrical heart sensor for ECG readings, and continuous optical heart rate monitoring.