According to the survey, millions of used mobile phones are generated every year all over the world. When the mobile phone market is approaching saturation, used mobile phones start to become popular. It almost has the same performance as a new one but at a cheap price. However, it’s difficult to make a good choice for most people.

As a professional used mobile phone supplier, we have established strict grading standards in the industry. As known to us all, a phone includes three aspects: surface, function, and battery.

First of all, There’s a precondition in terms of function and battery. All of our phones are fully functional after hardware test-software test-battery test to ensure the use and battery health. We also use the phone-check to measure.

As to surface, a phone has 6 sides in total. Defects include not limited to scratch, oxidation, depression, decolorization. No matter how many defects found on one side, we define one side defect according to the standards. We divide the used phone into the following grade according to side defect difference:

Refurbished Grade: no side defect. Parts are refurbished or changed. Fully functional with a healthy battery.

Perfect Grade: One defect side at most. No part changed. Fully functional with a healthy battery.

Master Grade: three defect sides at most. No part changed. Fully functional with a healthy battery.

High Grade: five defect sides at most. No part changed. Fully functional with a healthy battery.

This is the way we grade used mobile phone.

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