What Is PhoneCheck Certification? How We Test Every Device

Every used-device seller writes tested in their listings. But what does that actually mean? At remarket.ch the answer is measurable: every device goes through an 80-point diagnosis with PhoneCheck, independent testing software that is regarded worldwide as the industry standard for the second-hand market. Here is what really happens.

Why software instead of eyeballing?

A human can spot scratches and press buttons, but they can't look inside the battery, measure every sensor or detect a manipulated display. PhoneCheck connects directly to the device and tests systematically, point by point, incorruptible and documented. The result isn't a gut feeling, it's a test report.

What the 80-point diagnosis covers

• Display and touch: dead pixels, burn-in, touch precision across the entire surface.
• Battery: measured remaining capacity and charge cycles, exactly the value later shown on the product.
• Cameras and audio: all lenses, focus, image stabilisation, microphones, speakers, earpiece.
• Sensors and connectivity: Face ID or Touch ID, gyroscope, proximity sensor, Wi-Fi, Bluetooth, cellular, GPS, NFC.
• Origin and locks: IMEI check, SIM lock, iCloud and Google activation locks, no device with an unclear history ever goes on sale.

Certified data erasure

Before sale, all of the previous owner's data is erased with certification, following recognised standards and with an erasure log. That protects both sides: the previous owner knows their data has been securely removed, and you get a cleanly set-up device.

What happens to devices that fail?

If the diagnosis finds a fault, it is fixed in our own workshop, from the battery to the display, and the device is tested again. Only devices that pass every point receive a condition grade and make it into the shop. Devices that can't be repaired economically serve as parts donors instead of becoming a risk for customers.

What this means for you in practice

You're not buying on trust, you're buying on evidence: a documented technical inspection, the battery condition stated on the product, honest condition grades for the cosmetics, and if something does come up: a 1-year warranty and a 14-day return policy. Exactly this difference separates refurbished from an anonymous second-hand purchase.

Conclusion

PhoneCheck certified means: 80 measurable test points, certified data erasure and a documented condition, for every single device in the shop. For us, tested isn't an adjective, it's a protocol.