Anker is offering select iPhone X cases for just $3.99 when you enter promo code CASE9399 during checkout. That'll save you up to $4 off the price of the cases available. There are even some iPhone 8 and 8 Plus cases you could grab for this price with a separate code.

The following iPhone X cases drop to $4 with the promo code:

Meanwhile, if you're sporting an iPhone 8 or an iPhone 8 Plus, you'll want to use the alternate promo code CASE8399 on the cases below:

There's no telling how long these codes will remain active, and occasionally during these discounts the cases have gone out of stock too, so make sure to head to Amazon and make your purchase while the deal's still good!

See at Amazon

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