Callisto is a global B2B marketplace for wholesale used electronics.
Callisto is a global B2B marketplace for wholesale used electronics. Buy used, refurbished and damaged smartphones through our secure, trusted online marketplace designed for wholesale buyers trading at volume.
Every smartphone is sourced directly from OEMs, carriers, and retailers, then tested, graded and listed with clear condition detail, so you can see exactly what you’re buying before you commit.
Buy through instant catalogue listings, bulk offers or live and silent auctions, with clear pricing and consistent grading – all in one platform.
Source high-demand smartphones across a wide range of grades and models through a dedicated wholesale used electronics marketplace built for secondary tech trade.
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iPhone 14 Pro Max
A consistently traded model with mixed-grade availability to support different pricing strategies.
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iPhone 15
Recent Apple models available across multiple grades and generations to support resale and refurbishment.
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Samsung Galaxy S23
Available across multiple grades to support Android demand across global markets.
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iPhone 12
A high-volume legacy model with broad grade coverage, widely used across resale, repair and parts programs.
iPhone 14 Pro Max
A consistently traded model with mixed-grade availability to support different pricing strategies.
iPhone 15
Recent Apple models available across multiple grades and generations to support resale and refurbishment.
Samsung Galaxy S23
Available across multiple grades to support Android demand across global markets.
iPhone 12
A high-volume legacy model with broad grade coverage, widely used across resale, repair and parts programs.
Use Callisto when you need to source used, refurbished or damaged devices.
3,500+
wholesale buyers registered globally
2m+
devices traded each year
60+
markets reached worldwide
This scale supports steady supply and consistent demand across major smartphone models. Whether you’re sourcing current-generation devices, legacy models or mixed grades reach and volume are built into the platform.
You trade directly on a secure B2B electronic marketplace with full KYC compliance, Escrow-secured payments, and clear grading across every listing.
How to buy wholesale smartphones with Callisto
We bring multiple buying routes together inside one B2B electronic marketplace. You decide how to buy based on volume, grade mix, and pricing approach.
Catalogue listings
Buy wholesale smartphones instantly through fixed-price catalogue listings
Electronics auctions
Participate in live auctions with real-time bidding or silent auctions where bids remain hidden
Make an offer
Submit offers on bulk lots and negotiate pricing directly through the platform
Your questions answered
Discover how Callisto can simplify and enhance your wholesale trading experience.
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Yes, every device is securely data wiped and tested before being graded and listed.
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You get access to wholesale smartphones through one B2B electronic marketplace with consistent grading, flexible buying options and global supply.
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Inventory ships from global locations across Europe, UK, Americas, MEA and JAPAC.
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You’ll be trading alongside other wholesalers, refurbishers, resellers, retailers, repair specialists, and enterprise buyers operating at scale.
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Yes. You can source latest and legacy models, mixed grades, bulk lots, and repeat SKUs depending on how you trade.
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If you are not satisfied with your purchase, you can raise a claim by sharing relevant details and supporting information. We will review the claim in line with our grading criteria and the agreed specifications.
Ready to learn how to trade with Callisto?
Book a demo to explore our platform and experience the benefits of smart trading.