Location: San Ramon, CA

Circuitcastle Technologies aims to provide you with a one-stop shop for pre-owned or new, high-end smartphones at a great price for yourself or your loved ones!
All Smartphones sold by us are checked for full functionality. Carrier Service/data plan needed for voice call and/or mobile data are not included with the product. The buyer has to purchase them at his/her own risk/responsibility.
Each and every phone is inspected for IMEI/ESN and listed only when the IMEI/ESN is found clean. We do not sell any smartphones with bad or blacklisted IMEI/ESN.
All pre-owned smartphones are inspected and graded according to their cosmetic condition to meet Swappa's requirements for Mint, Good and Fair category. All phones sold by us are fully functional. There are no hidden labels or comments for any functional defects. So you can shop worry free from us!
The Phones sold on this website are guaranteed not to be under any contract and the phones listed as GSM Unlocked will work with majority of the GSM carriers worldwide. The phones sold by us does not come with any warranty including but not limited to water proof feature advertised by manufacturer.
Your satisfaction is our priority. We provide hassle-free returns within 15 days of receiving the product if the buyer is dissatisfied with the purchase. The device has to be packed and shipped back in its original packaging and in the exact same condition as received in order to be eligible for return. Please check our return policy for more details on Returns.
All smartphones come with Free Shipping and Free Returns within United States unless otherwise specified. We do not sell or ship internationally.

Popular Listings


Only 3 left


Apple iPhone 7 (AT&T) [A1778]

Rose Gold
256 GB

iPhone 7 256GB Rose Gold Mint || AT&T Unlocked Phone || 15 Days Free Returns


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Apple iPhone 7 (Unlocked) [A1660]

Rose Gold
128 GB

iPhone 7 128GB Rose Gold Near Mint || Unlocked phone || 15 Days Free Returns


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Apple iPhone 7 (Verizon) [A1660]

32 GB

iphone 7 32GB GB Black Mint || Verizon/GSM Unlocked phone || 15 Days Free Returns

Latest Ratings
  • Rating Summary  2392   59   0
  • +1 rating by Russell Smith on Sep 25, 2021:

    Thank you for a good phone and rapid completion of my order.

  • +1 rating by Robert D. on Sep 23, 2021:

    Phone came as described. I will do business with them again.

  • +1 rating by Richard A. on Sep 23, 2021:


  • +1 rating by Michele B. on Sep 23, 2021:

    Just as described. Phone was delivered in great condition and had no issues with carrier.

  • +1 rating by Ryan L. on Sep 23, 2021:

    Awesome service.

Shipping Policies

The device ships free of cost by USPS First Class Mail usually on the same business day when purchased before 1PM Pacific time. Due to Covid-19 and shortage of staff, packages are getting occasionally delayed. We offer USPS Priority Mail Shipping for extra charge of $10. To get this option, buyer needs to inform us as soon as the purchase is made via a comment on the sale page. We will send invoice for $10 via Paypal to the buyers email address. Once the invoice is paid, device will ship by USPS Priority mail. Please note, USPS no longer guarantees Priority mail delivery in 2 to 3 business days and occasionally Priority Mail packages are also delayed. We are not responsible for delays caused by USPS and Priority shipping charge will not be refunded for delayed packages.

Return & Refund Policies

Hassle Free Returns accepted within 15 days if the buyer finds some functional issue with the device or is dissatisfied with the purchase for any reason. We pay return shipping cost. Device needs to be returned in exact same condition as received and has to be free from passwords/ Google account locks/ Apple ID locks in order to be eligible for return. If the device is returned in broken/damaged or non functional condition including but not limited to water damage it will not be eligible for returns. Once the return is initiated, the device needs to be sent back within 3 to 4 business days. If the device is not received back within 10 days of initiating the return, the return will be closed.

Disclosure: This site contains affiliate links to other sites. We may receive commissions for purchases made through these links.

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