How our part codes work, and where the data comes from
What a code like TG-13 means, why some phones return two answers, and how to read the compatibility data honestly.
3 min read
Every tempered glass entry on this site carries a code like TG-13. This page explains what those codes are, what they aren't, and how far you should trust them.
What a code represents
TG means tempered glass. The number identifies a compatibility group: a set of phone models that take the same physical part.
Groups vary enormously in size. TG-13 covers 154 models. TG-10 covers two. That's not inconsistency — it reflects how panel designs are actually reused. A popular front-face shape gets shared across whole product lines and across brands, because several manufacturers buy panels from the same upstream suppliers.
What a code is not
It is not a supplier's part number. No standard numbering exists across the industry. Your supplier has their own code, a second supplier has a different one, and neither matches ours.
That's why every part carries an optional supplier code field. Once you've established that a group corresponds to your supplier's number, record it, and reordering stops depending on anyone's memory.
It is not a product. We don't sell anything. These pages are a reference, not a catalogue.
Where the data comes from
The underlying compatibility data is a working spreadsheet maintained by people who fit these parts — built up from supplier catalogues, physical fitting, and accumulated bench experience.
That origin is worth being upfront about, because it shapes what the data is good at and where it's weak:
Strong, because every entry reflects a part someone actually handled. It isn't scraped from marketplace listings, which are full of optimistic "fits all" claims.
Limited, because it covers the models that come through a particular set of shops. A phone absent from the site isn't incompatible with everything — it simply isn't recorded yet.
Why some phones return two answers
Four models currently appear under two different groups. When you look one of those up, you get both, side by side, with neither presented as the answer.
That's deliberate, and it's the most important design decision on the site.
The source data records that two parts both list the model. It does not record which is correct for a given handset — variants of the same model can ship slightly different panels, and suppliers group them differently. We don't know which applies to the phone on your bench, and neither does anyone else without looking at it.
So rather than picking the more common option and presenting it confidently, we show both and tell you how to tell them apart: measure the screen, compare the cutouts, dry-fit before peeling, quote both codes to your supplier.
A confident wrong answer here costs a wasted trip to the supplier and a customer sent away twice. An honest "check this one" costs thirty seconds.
Screen size is a check, not a key
Each group lists a screen size, and some list a range like 6.44" / 6.4" because manufacturers round inconsistently.
Use it to sanity-check a part you're holding. Don't use it to choose one — two of our groups are both 6.4 inches and are not interchangeable. There's a whole guide on why.
Corrections
Data like this is never finished. Models get added, variants get discovered, and occasionally an entry is simply wrong.
If you fit a part and find the listing doesn't match reality, that's worth reporting rather than working around. A correction helps every shop that looks the model up afterwards; a workaround in your head helps only you, and only until you forget it.
Using the site
- Search a model to get the part code that fits it.
- Open a part code to see every model it covers, filtered by brand.
- Open a brand to see all its models grouped by the part they take.
All three views read from the same data, so they can't disagree with each other.