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UGP v1.0 is a public comment draft. Comments close November 23, 2026. The A–D defect counts are provisional.Public comment draft · until November 23, 2026Comment on this draftComment →
UGPUniversal Grading Protocol
The grades

Good

PDF

UGP grade C, Good: clear scratches or small dents you can feel on the body, screen marks invisible when it's on.

On a listingGoodC

Clear scratches or small dents you can feel on the body. Screen marks invisible when it's on.

45 cm (18 in)clear
Touchbody felt

The test

CheckWhat you find
At arm's length, about 45 cm (18 in)Clear scratches or small dents on the body.
TouchA fingernail catches on a few scratches on the body, without stopping.
Screen onScreen marks are invisible.

Zone tolerances

AAAAABCfrontback
Figure 1 · Phone surface zones (front · back)AADisplay + camera lensesAFront housingBBack, sides, buttonsCConnectors

The table shows the most Good allows in each zone, beside Very Good for comparison.

  • AADisplay + camera lenses
    S1 ≤ 6S2 ≤ 3
  • AFront housing
    S2 ≤ 5S3 ≤ 1CH1 ≤ 1
  • BBack, sides, buttons
    S2 anyS3 ≤ 3DN2 ≤ 2CH1 ≤ 2X minor
  • CConnectors
    any; contacts undamaged

Exceeds any zone? It drops to Acceptable.

ZoneGood · max per zoneVery Good, for comparison
AAdisplay + lensesS1 ≤ 6 · S2 ≤ 3S1 ≤ 4 · S2 ≤ 1
Afront housingS2 ≤ 5 · S3 ≤ 1 · CH1 ≤ 1S2 ≤ 5
Bback / sidesS2 any · S3 ≤ 3 · DN2 ≤ 2 · CH1 ≤ 2 · X minorS2 ≤ 10 · DN1 ≤ 2 · CH1 ≤ 1
Cconnectorsany; contacts undamagedS2 ≤ 3
Provisional

The counts are provisional in the public comment draft and open for comment with inspection data. Records carry tolerance_table: "phone-1.0-provisional"; raw defects are stored, so grades recompute without re-inspection. On a tablet, every count is × 1.5, rounded down. §5.5

S3 is a scratch a fingernail catches on but does not stop; DN2 is a dent of 3 mm or less; X is coating or paint wear, minor in this grade. §5.1 · §5.2

Guarantees and disclosures

Every Good device:

  • is fully functional (FF);
  • has no cracks and no triggered liquid indicator;
  • holds at least 80% battery health, measured or declared;
  • has no account or management lock;
  • has had its data sanitised;
  • is not reported lost or stolen, by a lost/stolen check or the seller's declaration.

§11.3

Shown with the grade when they apply: a carrier lock with the carrier's name, each non-genuine part by name, a kit that is not full, and the battery basis (a measured percentage or "declared"). §11.4

Maps to

SystemGood maps toNote
CTIA v5.1 cosmeticB
CTIA v5.1 primaryB+The primary grade assumes CTIA functional class 1, battery type 1 and customer and enterprise locks clear, all of which every UGP grade guarantees.
CTIA v5.1 consumer tierTier 4
R2 RECC4 / F5
Back MarketFair
Amazon RenewedAcceptable
SwappaFair
eBay condition3000 (2030)
Google Merchantused
Source: Annex D (informative)

"Good" on UGP is the third used grade. On several marketplaces, "Good" names a better condition; the table shows where each one lands. Annex D

Maps to, not endorsed. UGP is not CTIA, and no marketplace has endorsed this mapping. Source: Annex D (informative).