Coolblue's Choice BlueBuilt phone cases
64 phone cases
Our choice for a back cover with MagSafe for your iPhone 16 Pro Max
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Back cover
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Size average
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Color transparent
- Thanks to the MagSafe magnet in this cover, you can firmly attach MagSafe accessories.
- This sturdy case protects your iPhone 16 Pro Max from damage in the case of a fall from up to 3m.
- The BlueBuilt back cover is the best choice for you if you want to protect your iPhone.
Our choice for a back cover with magnet for your Samsung Galaxy S25 Ultra
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Back cover
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Size average
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Color transparent
- Thanks to the magnet in this cover, you can firmly attach magnetic accessories.
- Thanks to this transparent case, you can still see the original design and the color of your S25 Ultra.
- The BlueBuilt back cover is the best choice for you if you want to protect your smartphone.
Our choice for a standard back cover for your iPhone 16
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Back cover
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Size average
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Color transparent
- Your screen remains free, so you can quickly see the notifications and the time.
- Thanks to this transparent iPhone case, you can still see the original design of your iPhone 16.
- This BlueBuilt back cover is the best choice for you if you want to protect your iPhone.
Our choice for a back cover with fall protection for your iPhone 16 Plus
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Back cover
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Size average
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Color transparent
- This sturdy case protects your iPhone from damage in the case of a fall from up to 3m.
- Thanks to this transparent case, you can still see the original design of your iPhone 16 Plus.
- This BlueBuilt back cover is the best choice for you if you want to protect your iPhone.
Our choice for a standard back cover for your Samsung Galaxy S26 Ultra
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Back cover
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Size average
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Color black
- The back cover protects your smartphone from damage.
- Your screen remains free, so you can quickly see the notifications and the time.
Our choice for a standard back cover for your Samsung Galaxy S26 Plus
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Back cover
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Size average
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Color black
- The back cover protects your smartphone from damage.
- Your screen remains free, so you can quickly see the notifications and the time.
Our choice for a standard back cover for the iPhone 11
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Back cover
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Protection quality standard
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Size average
- Your screen remains free, so you can quickly see the notifications and the time.
- With this thin case, your smartphone still fits in your bag or pocket.
- The BlueBuilt back cover is the best choice for you if you want to protect your smartphone.
Our choice for a standard back cover for your iPhone 16 Pro
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Back cover
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Size average
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Color transparent
- Your screen remains free, so you can quickly see the notifications and the time.
- Thanks to this transparent case, you can still see the original design of your iPhone 16 Pro.
- This BlueBuilt back cover is the best choice for you if you want to protect your iPhone.
Our choice for a standard back cover for the iPhone 12 Mini
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Back cover
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Protection quality standard
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Size average
- Thanks to the combination of the above properties, this BlueBuilt Back Cover is Coolblue's Choice.
- The case is transparent, so you can see the original design of your iPhone.
- The BlueBuilt back cover is the best choice for you if you want to protect your smartphone.
Our choice for a back cover with fall protection for the Samsung Galaxy A55
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Back cover
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Size average
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Color transparent
- This sturdy case prevents fall damage in the case of a fall from up to 3m.
- Your screen remains free, so you can quickly see the notifications and the time.
- This BlueBuilt back cover is the best choice for you if you want to protect your smartphone.
Our choice for a book case for your Samsung Galaxy S25
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Book case
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Size large
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Color black
- This book case protects both the front and back of your smartphone.
- You can easily take cards or cash with you in the book case.
- The BlueBuilt book case is the best choice for you if you want to protect your smartphone.
Our choice for a book case for your Samsung Galaxy S25 Ultra
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Book case
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Size large
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Color black
- This book case protects both the front and back of your smartphone.
- You can easily take cards or cash with you in the book case.
- The BlueBuilt book case is the best choice for you if you want to protect your smartphone.
Our choice for a back cover with magnet for your Samsung Galaxy S26 Plus
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Back cover
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Size average
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Color transparent
- Thanks to the magnet in this cover, you can firmly attach magnetic accessories.
- Thanks to this transparent case, you can still see the original design and the color of your S26 Plus.
- The case protects your smartphone from damage.
Our choice for a standard back cover for your Samsung Galaxy S25 Ultra
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Back cover
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Size average
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Color black
- Your screen remains free, so you can quickly see the notifications and the time.
- The case is flexible, which makes it easy to put around your smartphone.
- The BlueBuilt back cover is the best choice for you if you want to protect your smartphone.
Our choice for a back cover with fall protection for your Samsung Galaxy S25 Ultra
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Back cover
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Size average
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Color transparent
- This sturdy case prevents fall damage in the case of a fall from up to 3m.
- Your screen remains free, so you can quickly see the notifications and the time.
- The BlueBuilt back cover is the best choice for you if you want to protect your smartphone.
Our choice for a back cover with fall protection for the Apple iPhone 15 Plus
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Back cover
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Size average
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Color transparent
- This sturdy case protects your iPhone from damage in the case of a fall from up to 3m.
- Thanks to this transparent case, you can still see the original design and the color of your iPhone 15 Plus.
- The BlueBuilt back cover is the best choice for you if you want to protect your iPhone.
Our choice for a standard back cover for the Samsung Galaxy A54
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Back cover
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Size average
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Color transparent
- Your screen remains free, so you can quickly see the notifications and the time.
- Thanks to this transparent smartphone case, you can still see the original design of your smartphone.
- The BlueBuilt back cover is the best choice for you if you want to protect your smartphone.
Our choice for a standard back cover for the iPhone SE 2022 / SE 2020 / 8 / 7
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Back cover
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Protection quality standard
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Size average
- Thanks to the combination of the above properties, this BlueBuilt Back Cover is Coolblue's Choice.
- Thanks to this transparent case, you can still see the original design and the color of your iPhone.
- The BlueBuilt back cover is the best choice for you if you want to protect your smartphone.
Our choice for a back cover with magnet for your Samsung Galaxy S25 Plus
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Back cover
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Size average
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Color transparent
- Thanks to the magnet in this cover, you can firmly attach magnetic accessories.
- Thanks to this transparent case, you can still see the original design and the color of your S25 Plus.
- The BlueBuilt back cover is the best choice for you if you want to protect your smartphone.
Our choice for a standard back cover for the iPhone 13 Pro Max
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Back cover
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Protection quality standard
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Size average
- Your screen remains free, so you can quickly see the notifications and the time.
- With this thin case, your smartphone still fits in your bag or pocket.
- The BlueBuilt back cover is the best choice for you if you want to protect your smartphone.
Our choice for a standard back cover for the iPhone 11 Pro
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Back cover
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Protection quality standard
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Size average
- Your screen remains free, so you can quickly see the notifications and the time.
- With this thin case, your smartphone still fits in your bag or pocket.
- The BlueBuilt back cover is the best choice for you if you want to protect your smartphone.
Our choice for a back cover with MagSafe for your iPhone 16 Plus
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Back cover
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Size average
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Color transparent
- Thanks to the MagSafe magnet in this cover, you can firmly attach MagSafe accessories.
- This sturdy case protects your iPhone from damage in the case of a fall from up to 3m.
- This BlueBuilt back cover is the best choice for you if you want to protect your iPhone 16 Plus well.
Our choice for a book case for the Samsung Galaxy A55
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Book case
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Size average
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Color black
- This case protects the front and back of your smartphone.
- You can easily take cards or cash with you in the book case.
- This BlueBuilt book case is the best choice for you if you want to protect your smartphone.
