Watch Series 6 40mm vs Watch Series 8 45mm

Swappasaurus says...
Apple released the Watch Series 6 on September 18, 2020, and released the Watch Series 7 was released on September 16, 2022.
The Apple Watch Series 6 is available in 40mm and 44mm case sizes and is powered by an S6 SiP with a 64-bit dual-core processor. The Apple Watch Series 8 is available in 41mm and 45mm case sizes and is powered by an S8 SiP with a 64-bit dual-core processor. Both models feature a W3 wireless chip, and a U1 ultra-wideband chip, and have 32GB of storage.
The Series 8 arrived with a few new features, such as a temperature sensor, crash detection, an IP6X rating for dust resistance, and fast charging.
Price Comparison
Watch Series 6 40mm vs Watch Series 8 45mm Pricing
Specs Comparison
The Apple Watch Series 6 and Series 8 share many of the same features and specs, but the Series 8 adds a few standout features.
The Apple Watch Series 6 spec list includes an S6 SiP with a 64-bit dual-core processor, Bluetooth 5.0, and options for a 40mm or 44mm case size.
In comparison, the Apple Watch Series 8 spec list includes an S8 SiP with a 64-bit dual-core processor, a temperature sensor, crash detection, an IP6X rating for dust-resistance, Bluetooth 5.3, fast charging, and options for a 41mm or 45mm case size.
Common specs found on the Series 6 and Series 8 Apple watches include an always-on Retina display, a W3 wireless chip, a U1 ultra-wideband chip, 32GB of storage space, and a Digital Crown with haptic feedback.
Additional shared specs and features include a blood oxygen sensor, an electrical heart sensor, a third-generation optical heart sensor, high and low heart rate notifications, irregular rhythm notification, an ECG app, International emergency calling, Emergency SOS, Fall Detection, water-resistance to 50 meters, GPS/GNSS, a compass, an always-on altimeter, a built-in speaker and microphone, and WiFi (802.11b/g/n).
The 40mm Apple Watch Series 6 measures 40mm (H) x 34mm (W) x 10.7mm (D), and the 45mm Apple Watch Series 8 measures 45mm (H) x 38mm (W) x 10.7mm (D).
The Series 6 and Series 8 weights vary based on the case material.
The weights of the 40mm Series 6 are as follows: the stainless steel model weighs 39.7 grams, the aluminum model weighs 30.5 grams, and the titanium model weighs 34.6 grams.
In comparison, the weights of the 45mm Apple Watch Series 8 are as follows: the stainless steel model weighs 51.5 grams, and the GPS-only aluminum model weighs 38.8 grams. The GPS + Cellular aluminum Series 8 weighs 39.1 grams.
Color Choices
Watch Series 6 40mm
Available in 8 colors:
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Black
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Blue
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Gold
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Graphite
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Gray
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Red
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Silver
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Titanium
Watch Series 8 45mm
Available in 7 colors:
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Black
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Gold
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Graphite
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Midnight
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Red
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Silver
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Starlight
Watch Series 6 40mm vs Watch Series 8 45mm Colors

The Apple Watch Series 6 and the Series 8 are available in aluminum and stainless steel. The Series 6 is also available in titanium. The available colors for the Apple Watch Series 6 and Series 8 vary based on the case material.
The aluminum Series 6 is available in Silver, Space Gray, Gold, Blue, and PRODUCT(RED), the stainless steel Series 6 is available in Silver, Graphite, and Gold, and the titanium Series 6 is available in Titanium (Natural) and Space Black (DLC).
To compare, the aluminum Series 8 is available in Midnight, Starlight, Silver, and PRODUCT(RED), and the stainless steel Series 8 is available in Graphite (PVD), Silver, and Gold (PVD).
Storage Options
Watch Series 8 45mm
Choose from 0 storage options:
Watch Series 6 40mm vs Watch Series 8 45mm Storage

The Apple Watch Series 6 and the Apple Watch Series 8 feature 32GB of storage space.
Watch Series 6 40mm vs Watch Series 8 45mm Reviews
More Comparisons
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