iPhone Grading Standards: What Grade A, A/B and B/C Really Mean

Unlike battery health, which Apple reports as a single percentage, cosmetic grading has no reference definition that all traders share. „Grade A“, „Grade A+“, „Grade AB“, „refurbished“, „mint“, „like new“ — the words carry whatever meaning each supplier assigns to them. Two suppliers can label the exact same device differently, and a device sold as Grade A in one warehouse would be Grade B in another.

That is not necessarily dishonesty; it is the absence of a common yardstick. But it is exactly why a grade you cannot pin to a written definition is worthless as a purchasing basis. The professional move is to treat the letter as shorthand and demand the definition behind it — in writing, per grade, before the first order.

The most common — and most expensive — misunderstanding is treating a cosmetic grade as an all-in quality score. A grade describes the visible condition of the housing and screen. It does not, by itself, tell you whether the battery is healthy, whether the device is network-clean, or whether every function works.

A serious operation keeps these dimensions separate and documents each one:

• Cosmetics: the letter grade — scratches, dents, screen marks, corner wear. This is what the grade covers.
• Function: every unit at TR Vertriebs GmbH passes a 52-step functional and cosmetic diagnostic (NSYS, PhoneCheck, Blancco) with an individual test report per device.
• Battery health: guaranteed above 80% on every grade — including Grade B/C — tested under full load, not just read out, and documented per device. See the battery health guide.
• Network & lock status: IMEI checked and, where relevant, unlock status stated — a cosmetic grade never covers this. See carrier-locked vs. unlocked.

We grade every used iPhone — across the full range from iPhone 11 to iPhone 17 Pro Max — on a deliberately simple three-tier scale. Simple, because the more grades a scale has, the more room there is for interpretation to drift. Battery health is guaranteed above 80% on all three tiers; the tiers describe cosmetic condition only.

• Grade A (pristine): near-flawless, only minor blemishes near the ports, corners or the Apple logo. The closest to new in a used batch.
• Grade A/B (premium — the most-ordered wholesale mix): light, honest signs of use, no defect that affects handling or resale. The workhorse grade for most retailers.
• Grade B/C (economy): clearly used, with deeper scratches or small cracked corners that do not affect function. Priced for buyers who lead on value or refurbish further.

A grade is only as good as the discipline behind it. The failure mode buyers fear is the „surprise downgrade“ — you order Grade A, a share of the batch arrives as B, and the margin you priced in evaporates. We grade to a fixed standard and never ship what we cannot fulfill; if we cannot supply a grade, we say so rather than quietly filling it with a lower one. Every unit ships with a 30-day warranty, and if a device does not match its stated grade on arrival, it is a warranty case, not a negotiation.

This is also why grading and lot composition are separate questions. A mixed-grade lot is a deliberate blend of grades at a blended price — not a single grade diluted with worse stock. The wholesale manifest guide shows how a per-IMEI packing list makes the difference visible.

Because the letter carries no fixed meaning, your due diligence is to pin it down. Ask for the written grade definitions, per grade. Ask whether battery health is guaranteed and at what threshold on every grade. Ask whether each unit is tested and whether you receive a per-device report. Ask what happens on arrival if a device is below grade — is there a warranty, and how long. A supplier that can answer all four in writing is one you can hold accountable; one that cannot is asking you to buy on a word with no definition.

The supplier evaluation checklist walks through these questions in full, and used vs. refurbished explains where graded used stock sits relative to refurbished. TR Vertriebs GmbH has graded and shipped used iPhones from Horn-Bad Meinberg since 2011; orders paid by 5 p.m. German time ship the same day, delivered across the EU the next business day, fully insured.