Apple Watch Series 4 40mm Buyer's Guide
Swappasaurus says...
Apple released the Apple Watch Series 4 on September 21, 2018. The Apple Watch Series 4 serves as the follow-up to the Series 3 model that was released in September 2017. The Apple Watch Series 4 features an aluminum or stainless steel case design, is available with a 40mm or 44mm case size, and ships in a GPS and a GPS + Cellular model.
Watch Series 4 40mm Price
Watch Series 4 40mm Colors
Swappasaurus says...
The aluminum Apple Watch Series 4 is available in Space Gray, Silver, and Gold. The stainless steel Series 4 is available in Space Black, Silver, and Gold.
Color Popularity
Black
Black is a unique Watch Series 4 40mm color choice, a classic available on the previous generation Watch Series 3 38mm, and others in the Apple Watch family.
Shop Black Watch Series 4 40mmGold
Gold is a popular Watch Series 4 40mm color preference, an old favorite, also found on the previous generation Watch Series 3 38mm.
Shop Gold Watch Series 4 40mmGray
Gray is the most popular Watch Series 4 40mm color choice, a classic available on the previous generation Watch Series 3 38mm, and others in the Apple Watch family.
Shop Gray Watch Series 4 40mmSilver
Silver is a popular Watch Series 4 40mm color preference, a classic available on the previous generation Watch Series 3 38mm, and others in the Apple Watch family.
Shop Silver Watch Series 4 40mmImage Gallery
Swappasaurus says...
Device colors may appear to change under different lighting conditions.
Here are real images taken from active Swappa listing under a variety of lighting conditions,
so you can figure out which Watch Series 4 40mm color is best for you.
Apple Watch Comparisons
Watch Series 4 40mm Family
FAQ
The most popular Watch Series 4 40mm storage option is ?, chosen by % of buyers on Swappa.
More storage generally means a higher price for the Watch Series 4 40mm. In June 2025, the average sale price for the Sale Price Avg option was $93.
The most popular Watch Series 4 40mm color is Gray, favored by 47% of buyers.
In general, Watch Series 4 40mm color doesn't affect price, resale value, or depreciation much on Swappa; so go with the color you like best. Other factors, such as condition, and storage size have a larger influence on Watch Series 4 40mm prices.
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