What you can trade

Join a marketplace trading 2 million devices annually, offering extensive categories and a wide range of brands and product conditions

comprehensive tech solutions

Discover our full range of tech solutions

features of Callisto

The ultimate secure tech trading platform

Sourced from leading global brands
Sourced from leading global brands

Trade confidently with a catalogue featuring products from top manufacturers and global brands, ensuring authenticity and quality for the best investment value.

Diverse product catalog
Diverse product catalogue

Explore a wide range of devices, from smartphones to refurbished home electronics. Our frequently updated catalogue offers plenty of options to suit your business needs.

Detailed product insights
Detailed product insights

Gain access to detailed product descriptions and grading information for every item in our catalogue. These insights ensure you know exactly what you're trading and the condition of each device.

Effortless trading experience
Effortless trading experience

Our intuitive platform makes catalogue browsing and trading seamless. Whether you’re bidding or making requests, our streamlined interface ensures a smooth, hassle-free experience.

product grading

Our grading system explained

Devices on our platform are graded based on consistent, pre-determined criteria, providing buyers and sellers with clarity and confidence.

Grade A
Grade A

Devices in excellent condition, showing no significant wear, fully functional, and offering strong battery performance.

Grade B
Grade B

Devices in very good condition, fully functional with good battery health. They may have slight scratches on the display, enclosure, or rear, but no dents or chips.

Grade z
Grade Z

Devices in good cosmetic condition, fully functional with a reliable battery. Minor scratches or small chips may be visible on the screen, rear, or enclosure.

Grade C
Grade C

Devices with functional performance and reduced battery health, showing visible wear such as scratches, dents, custom engravings, or non-original parts.

Grade Cx
Grade Cx

Similar to Grade C but may have additional cosmetic or functional issues, such as display wear, limited features, or other minor defects.

Grade w
Grade W

Devices in a mix of grades, undergoing essential checks for functionality and security, with guaranteed data wipes.

Grade D
Grade D

Devices with noticeable cosmetic or functional issues, such as display defects, damaged glass, or non-functional features. Battery health may vary.

Grade Dx
Grade Dx

Devices with major functional issues, such as non-working FaceID/TouchID, blank screens, or severe cosmetic damage like cracks. Parts may be missing.

about our products

The platform you can trust

  • We use proprietary grading technology and expert technicians to evaluate every device, ensuring the highest standards of reliability and performance. 

    Trustworthy grading system
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Ready to learn how to trade with Callisto?

Book a demo to explore our platform and experience the benefits of smart trading.

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