Buyer guide
iPhone Grading Explained: Grade A vs AB vs B, Asis and CPO
Last updated: 2 September 2026 · by Voltaxion Trade Team · 9 min read
Two wholesalers can both quote you a “Grade A iPhone 13” and ship stock that looks a full tier apart. That is not necessarily fraud — it is the structural problem of a trade with no shared rulebook. This guide explains what each condition tier should mean physically, how battery health and activation status change the value of otherwise identical units, and how to audit a grading claim the day a pallet lands. It pairs with our formal grading specification, which is the controlling document behind every Voltaxion quote, and with the broader guide to buying wholesale iPhones.
Why there is no universal grading standard — and what that costs you
There is no ISO norm, no industry body, no legal definition for the cosmetic condition of a used phone. Every trading house maintains its own private vocabulary. One seller's “Grade A” is another's “A/B”, a third's “Excellent”, a fourth's “Like new”. Marketplaces that run refurbished programs layer their own condition definitions on top, and those definitions do not automatically align with any wholesaler's grades. The words travel; the meaning does not.
The cost of that ambiguity is concrete and lands on the buyer:
- Return-rate erosion. If you list a wholesale “Grade A” as “excellent” on a marketplace whose customers expect flawless glass, every hairline scratch becomes a return, and returns eat margin faster than a worse buy price ever would.
- Blended lots. The oldest trick in the trade is topping a lot with genuine Grade A and filling the middle of the carton with the seller's real average. Without a sampling protocol you discover this after you have paid.
- Unwinnable disputes. If the grade was never defined in writing, a dispute becomes your adjective against theirs. No written spec, no leverage.
The working rule: a grade means exactly what the seller's written specification says it means — nothing more. Before the first order, read the spec, keep a copy, and make sure the quote references it. Ours is public at voltaxion.com/grading precisely so a dispute never turns into a vocabulary debate.
The tiers, one by one: what to expect in hand
Voltaxion's catalog uses a fixed vocabulary — Brand new, CPO, Refurbished Grade A, AB and B, Asis+ and Asis — across every listing on iPhone and the wider Apple range. Here is what each tier should mean physically when you open the carton.
Brand new
Factory-sealed retail unit, never powered on, in the original manufacturer box with the accessories that ship for that SKU and region. The seal is intact and the manufacturer warranty has not started ticking. Region matters here: a sealed unit is still a specific regional SKU, with the charger, eSIM/physical-SIM configuration and model number of its market. Verify the part number suits your destination before you buy, not after.
CPO
Apple Certified Refurbished: original components, professionally refurbished to a premium cosmetic standard, presented in Apple's certified refurbishment packaging or equivalent, carrying Apple warranty. CPO is the tier for buyers who need a warranty story as strong as new but at refurbished economics. It is not the same thing as a wholesaler's own “premium refurb” — the certification and the warranty source are the point.
Refurbished Grade A
The practical test is simple: no visible scratches in normal indoor light at roughly 30 cm viewing distance. Ports, buttons and lenses clean; minimal or no signs of use. Held at arm's length under office lighting, the unit reads as new. This is retail-shelf and premium-listing stock. Anything you can see face-on at 30 cm disqualifies the unit from Grade A, full stop.
Refurbished Grade AB
The in-between tier that many catalogs collapse away and buyers then overpay to rediscover. Grade AB shows light wear only on close handling or at an angle under direct light: faint hairlines on the frame, micro-scuffs on the back glass, a screen that is clean when viewed straight on. Your end customer will not notice in a listing photo; a trained receiver will notice in hand. Priced and sold honestly, AB is often the best margin-per-complaint tier in the range.
Refurbished Grade B
Wear you see immediately on handling: clear scratches on the housing, visible marks near the screen edges or corners, honest signs of a device that was used daily. What Grade B must never mean is functional compromise — a graded refurbished unit still passes the same underlying QC as Grade A: functional test passed, IMEI clean, factory reset complete, activation lock removed. B describes the surface, not the electronics.
Asis+
Frequently misread, and worth learning: Asis+ is typically brand-new quality supplied without the retail box, in neutral or bulk packaging. It is not a worn refurb tier. Buyers use it when retail presentation is irrelevant — insurance replacement, corporate fleet deployment, repair-network swap stock — and paying for a sealed box would be paying for cardboard.
Asis
Functionality first, cosmetics second. An Asis unit must power on, charge, pass the agreed core tests and arrive free of activation lock — but there is no cosmetic-grade promise attached. Asis is not “broken” and it is not “for parts”; it is stock for operators who prioritise landed cost over cosmetic uniformity and either regrade it themselves or sell into channels where appearance is not the promise.
Battery health conventions
Battery health is where grading vocabularies are quietly weakest, because it is invisible in photos and expensive to fix. The conventions that matter:
- 80% is the common industry floor for graded refurbished stock — it mirrors the threshold Apple itself uses for battery service. A quote that is silent on battery health is implicitly promising nothing; get the floor in writing.
- “100% battery” usually means a replaced cell. That is not a red flag by itself, but it forces the next question: genuine or aftermarket? iOS flags non-genuine parts with a message in Settings, and some marketplace refurbished programs will reject units that show it.
- Ask three questions on every graded quote: what minimum percentage is guaranteed, is the battery original or replaced, and if replaced, does the unit display a parts message. Three lines in an email that prevent an entire class of dispute.
- Cycle count is becoming checkable. Recent iPhones expose battery cycle count in software, so receivers can increasingly verify battery claims on arrival rather than taking them on faith. Build it into your inspection sheet.
A lot of “cheap Grade A” on the open market is cosmetically honest and battery-dishonest. If a price looks a tier too good, the battery column is the first place to look.
Sealed vs Activated: why first activation matters
Alongside the condition tier, serious catalogs carry an activation field. In supplier data this appears as Not Activate or Active; on Voltaxion product pages it is translated to Sealed or Activated. The distinction is commercial, not cosmetic:
- Warranty clock. Apple's warranty runs from first activation. A Sealed unit hands your end customer the full term; an Activated unit may already have months on the meter. Coverage can be checked against the serial number, and professional buyers spot-check it on receipt.
- The legal word “new”. In most jurisdictions a device that has been activated can no longer be retailed as new. If your channel sells “new sealed”, Activated stock is simply not eligible inventory for it, whatever the cosmetic state.
- Region binding. Activated units are often region-bound or carrier-configured from their first power-on market. Sealed stock gives you control of first activation in your destination market.
- Price logic. Activated stock trades cheaper for all the reasons above. For operators whose channel does not require first-activation status — corporate deployment, open-market resale disclosed as such — that discount is real margin, not a defect.
The mistake to avoid is paying Sealed money for Activated stock, or building a “new” retail program on inventory that legally is not. The field exists on the listing; read it.
Mapping grades to end-customer channels
Grades only matter because channels have expectations. The practical mapping most distributors converge on:
- Brand new / CPO → retail shelf and warranty-sensitive B2B. Where the buyer needs a manufacturer or Apple warranty story and pristine presentation.
- Grade A → retail shelf and premium marketplace listings. “Like new” positioning survives customer scrutiny at 30 cm; returns stay structural, not cosmetic.
- Grade AB → mainstream marketplace “very good” listings. The photo looks clean, the price undercuts Grade A, and honest description keeps return rates sane.
- Grade B → value listings, trade counters and export markets where price-per-unit beats presentation, and the wear is disclosed rather than discovered.
- Asis+ → insurance replacement, corporate fleets, repair-network swap stock — channels that need new-quality hardware and could not care less about a retail box.
- Asis → cost-first export and professional refurbishers who regrade, re-kit and re-channel the stock themselves.
Note what is absent: a parts channel. None of these tiers are parts-grade; a unit with functional faults belongs in a different trade with different paperwork. If you run multiple channels, the discipline is to buy the tier for the channel — not to buy cheap and hope the channel forgives. Buyers routing stock programmatically can pull the condition and activation fields through our API and feed integrations and let their channel rules do the sorting automatically.
Crosswalk: tier → packaging → warranty
The table below is the Voltaxion crosswalk. Warranty terms are summarised from the warranty policy, which is the controlling document.
| Tier | Packaging | Warranty | Typical destination |
|---|---|---|---|
| Brand new | Original sealed retail box, manufacturer accessories | Manufacturer warranty | Retail shelf, warranty-sensitive B2B |
| CPO | Apple-certified refurbishment packaging | Apple warranty | Retail, premium refurb programs |
| Refurbished Grade A | Neutral box; accessories per quote | Voltaxion 30-day functional | Retail shelf, premium marketplace |
| Refurbished Grade AB | Neutral box; accessories per quote | Voltaxion 30-day functional | Mainstream marketplace |
| Refurbished Grade B | Neutral box; accessories per quote | Voltaxion 14-day functional | Value listings, export |
| Asis+ | Neutral or bulk, no retail box | Voltaxion 30-day functional guarantee | Insurance, fleet, repair networks |
| Asis | Bulk, tray or protective sleeve | Voltaxion 30-day functional guarantee | Cost-first export, refurbishers |
Across all tiers, the DOA window is 48 hours from proof of delivery, and disputes run through the portal under a VX-DSP reference — which is why the arrival audit below has a clock on it.
How to audit a grading claim on arrival
A grading claim is only as good as your receiving discipline. The protocol below is standard practice among professional distributors and fits inside a 48-hour window:
- Film the opening. Continuous video from sealed carton to first unit out. It costs nothing and it is the single strongest piece of evidence in any carrier or seller dispute.
- Reconcile IMEIs at 100%. Scan every unit against the packing list. Quantity and identity first; condition second. A missing or swapped IMEI is a bigger problem than a scratch.
- Sample for cosmetics. Full cosmetic inspection of every unit rarely pays on large lots. Use an AQL-style sample: pull units at random from different cartons — never just the top layer, which is exactly where a blended lot hides its best pieces. On small lots, inspect everything.
- Check locks and status. Confirm activation lock is off, the unit reaches the setup screen, and the IMEI reports clean. Spot-check activation and coverage status by serial against the Sealed/Activated claim on the order line.
- Record battery health. Read and log battery health (and cycle count where the model exposes it) on every sampled unit. Numbers logged on day one are evidence; numbers remembered on day ten are anecdotes.
- Grade under the spec's own convention. Cosmetic checks happen at the distance and lighting the specification defines — for our grades, normal indoor light at roughly 30 cm. Judging Grade A under a workshop lamp at 10 cm manufactures disputes that the spec will not support.
- Escalate inside the window. Photograph any unit that misses its tier, note the IMEI, and open the dispute through the portal before the 48-hour DOA window closes. Unit-level evidence filed on time gets resolved; carton-level complaints filed late get sympathy.
This protocol also happens to be your best defence against the supply-side games covered in our guide on avoiding wholesale scams — most of which survive only against buyers who receive stock without checking it.
Frequently asked questions
What is the difference between a Grade A and a Grade AB iPhone?
Grade A should show no visible scratches in normal indoor light at roughly 30 cm — clean enough for a retail shelf or a premium marketplace listing. Grade AB shows light wear only on close handling or at an angle under direct light: faint hairlines on the frame or back, with the screen clean face-on. Both are fully functional; the difference is purely cosmetic and it decides which sales channel the unit can carry without triggering returns.
Does Grade B mean the iPhone has functional problems?
No. Grade B is a cosmetic tier, not a functional one. A Grade B unit must still pass the same functional QC as Grade A: powered test, clean IMEI, factory reset, activation lock removed. What you accept is visible wear — scratches on the housing or screen you can see immediately on handling. Anything with functional faults does not belong in a graded refurbished tier at all.
What battery health should I expect on refurbished iPhone grades?
The common industry floor for graded refurbished stock is 80% battery health, which mirrors Apple's own service threshold. Serious sellers state the floor in writing on the quote. Always ask three questions: what minimum percentage is guaranteed, whether the battery is original or replaced, and if replaced, whether the cell is genuine — a non-genuine replacement can show a parts message in iOS settings, which matters for marketplace channels.
What is the difference between Sealed and Activated iPhones?
Sealed means factory sealed and never powered on, so the manufacturer warranty clock has not started and your end customer gets the first-activation experience. Activated means the device has been powered on at least once: the warranty clock may already be running, the unit is often region-bound, and in most jurisdictions it can no longer be sold as new. Activated stock is usually cheaper and suits operators who do not need first-activation status.
What should I do if a delivered lot does not match the graded claim?
Document first, argue second. Photograph the units under the same lighting convention the grade was defined against, record IMEIs of the disputed pieces, and raise the claim inside the seller's dispute window — at Voltaxion the DOA window is 48 hours from proof of delivery and disputes run through the portal with a VX-DSP reference. A claim filed late or without unit-level evidence is a weak claim, however right you are.
Source it from live inventory
Every listing in the Voltaxion catalog carries this exact vocabulary — tier, grade, activation status — on roughly 1,000 SKUs refreshed every 30 minutes, from iPhone 12 through 17 Pro Max. MOQ is 5 pieces per SKU and 50 per order, mixed SKUs allowed, with a 24-hour price lock on portal quotes. Verified buyers see live USD pricing after KYC onboarding: apply for access and put the grading spec to work on real stock.