New to either brand? Start with our full RJ iPhone screens guide for grades, model coverage, and factory-direct pricing.
Sooner or later, both names land on your sourcing list — and most "comparisons" online are written by people who have never shipped either one. We're not. We work directly with the RJ factory and supply both RJ and JK to repair shops and distributors worldwide, so what follows is first-hand: where these two brands are genuinely the same, the one practical difference that should decide it for your shop, and how to get whichever you pick at factory-direct pricing.
Here's the honest headline most sellers won't give you: RJ and JK are the same tier. Both are top-grade aftermarket manufacturers, both run the full lineup — Incell FHD, Hard OLED, Soft OLED1 — and on a bench, side by side, a customer won't tell you which is which. So stop asking "which brand is better." It's the wrong question. The right one is which fits how you sell2 — and that comes down to two concrete things, not vague quality talk.
The Quick Answer
Same tier, two real differences. First, RJ is the one that's truly no-logo — there's no brand mark on the screen, so your source stays yours. JK screens you'll mostly come across are branded. Second, at the same Soft OLED grade, RJ's panel is built tougher and takes a drop better. Against that, JK has the single biggest advantage in this market: it's the most recognised name, so it's the easiest screen you'll ever sell.
That's the whole decision. If your edge is margin and white-label, lean RJ. If your edge is a name your buyers already trust, lean JK. Most serious shops stock both — and we can quote you both from one place. Send us your model list and we'll price out either or both.
Who Are RJ and JK?
Both are established Chinese manufacturers that make iPhone replacement screens across all three grades — Incell FHD, Hard OLED, and Soft OLED — and both belong in the top tier of the aftermarket.
JK is the most recognised name in the category. It was an early force in aftermarket Incell and has spent years building a reputation for consistent, dependable screens across a wide model range. When a buyer asks for a brand they already know, JK is usually the name they say.
RJ sits at the same level on quality, but keeps a lower profile — which is exactly why fewer buyers know it, and why so little honest information about it exists. We work directly with the RJ factory, so the specifics below are first-hand, not copied off a spec sheet. If you want the full background, see what RJ stands for and who makes it.
RJ vs JK: Side by Side
| RJ | JK | |
|---|---|---|
| Tier | Top-grade aftermarket | Top-grade aftermarket |
| Grades offered | Incell FHD · Hard OLED · Soft OLED | Incell FHD · Hard OLED · Soft OLED |
| Soft OLED | Strong — 1:1 viewport, Demura3, true 120Hz4 | Strong |
| Colour / brightness | Excellent | Excellent |
| Soft OLED drop resistance | Built tougher — takes a drop better | Good |
| No-visible-logo screen | Yes — the only true no-logo here | Mostly branded |
| Market recognition | Lower (rising) | Highest in class |
| Price tier | Mid | Mid |
| Easiest to sell on name | — | Yes |
Read the table the right way: most rows are a tie, because they genuinely are. The two brands match on grades, on colour, on price. What actually separates them is the bottom half — no-logo, drop resistance, and recognition. Everything else is noise.
The Two Differences That Actually Decide It
1. No-logo — RJ keeps your source invisible. RJ screens carry no brand mark on the glass. Your customer can't read it, your competitor can't trace it, and nobody undercuts you by sourcing the same brand off your invoice. JK screens you'll mostly handle are branded, so the name travels with the part. For a distributor, that's not cosmetic — it's margin protection and customer retention5, built into the screen. This is the one lever RJ gives you that JK does not.
2. Drop resistance — RJ's Soft OLED is built tougher. At the same Soft OLED grade, RJ's panel is structurally sturdier and holds up to impact better than JK's. JK makes a good screen — this isn't a knock on it — but in day-to-day repairs, a panel that survives the knocks means fewer impact-related failures coming back to your counter. On a large order, that difference is real money.
Those are the two things we can stand behind first-hand. We're not going to tell you RJ "looks better" or "runs better" — at this tier, that's marketing, and you'd catch us on it. The honest RJ edge is exactly these two: invisible sourcing, and a tougher Soft OLED.
Not sure which way your customers lean? That's the easiest thing to settle — ask us for samples of both. Put them on the bench, drop-test them, show them to your best customer, and decide with the screens in hand. We'll send both.
Where JK Is the Better Call
To be fair to JK — and we sell it, so this is straight: its recognition is a genuine commercial advantage. If your buyers ask for screens by name, JK closes the sale for you. New to a market, or selling to shops that want a brand they already trust? JK is the lower-friction pick, and "it's JK" ends a lot of conversations that "it's RJ" can't — yet. That's worth real money too, and it's why plenty of our customers stock JK right alongside RJ.
Which Should You Stock?
Skip the "best brand" debate. Match the brand to how you sell:
- You sell on a recognised name your buyers already trust → JK.
- You protect your margin with white-label, no-logo screens → RJ.
- Your Soft OLED returns are mostly impact damage → RJ.
- You run a broad inventory → stock both, and split by customer: JK for the name-brand buyers, RJ for white-label and the toughest Soft OLED.
Whatever the split, the practical move is the same: get both from one factory-direct source so you're not juggling suppliers or paying a middleman on either one.
Why Buy Either One From Us
This is what we do all day. We work directly with the RJ factory, we supply both RJ and JK wholesale, and we QC-test every batch before it ships — so you get a straight answer on which brand fits your business, and the screens to back it up, from one place:
- First-hand, not resold. Direct factory relationship on RJ and a steady supply line on both — so pricing is factory-direct, not marked up through a chain.
- Mix and match in one order. RJ and JK, multiple grades, multiple models, one shipment, one invoice.
- Every batch QC-tested before it leaves us, with DOA cover — so a brand decision doesn't turn into a returns problem.
- Samples on request. Compare both on your own bench before you commit to volume.
Send us your model list and grade preference for a current quote, or message us on WhatsApp — tell us how you sell and we'll tell you, honestly, which one (or both) to stock.
The Bottom Line
RJ vs JK isn't a quality contest — they're the same tier, and both are screens we're happy to put our name behind. It comes down to how you sell: JK for the recognised name that sells itself, RJ for the true no-logo and the tougher Soft OLED. Most shops end up stocking both. Either way, the easiest next step is to get samples and a factory-direct quote and decide with the screens in your hands.
See our complete RJ iPhone screens guide for grades, model coverage, and pricing — or send us your list for a current quote.
FAQ
Is RJ better than JK for iPhone screens? Neither is better — they're the same tier. Both are top-grade manufacturers covering Incell FHD, Hard OLED, and Soft OLED, and they match on colour, quality, and price. The two real differences: RJ is the only one here with a true no-visible-logo screen, and its Soft OLED is built tougher and takes a drop better; JK has the highest brand recognition, so it's the easiest to sell on name. Pick by how you sell, not by "which is better."
What's the actual difference between RJ and JK screens? At this tier, image quality is a wash. The practical differences are two: (1) RJ screens are truly no-logo, so your source stays private, while JK screens are mostly branded; and (2) at the same Soft OLED grade, RJ's panel is structurally sturdier and more drop-resistant. JK's advantage is recognition — buyers know the name.
Do both RJ and JK make Soft OLED iPhone screens? Yes — both make strong Soft OLED across the iPhone lineup, and at this tier they're well matched on image quality. The one edge worth knowing is durability: RJ's Soft OLED is built to take a drop a bit better, which can mean fewer impact-related returns on large orders.
Can I buy both RJ and JK screens from one supplier? Yes. We supply both RJ and JK wholesale, factory-direct, and you can mix grades and models across both brands in a single order. Send your model list and grade preference for a current quote, or ask for samples of both to compare on your bench.
"Flexible OLEDs: introduction and market status", https://www.oled-info.com/flexible-oled. A source can explain that Incell LCDs are a cost-effective replacement option, while OLEDs offer superior contrast and color. Within OLEDs, Hard OLEDs use a rigid glass substrate, whereas Soft (or flexible) OLEDs use a more durable plastic substrate, similar to original Apple screens, which often results in better drop resistance and thinner bezels. Evidence role: definition; source type: other. Supports: The source should define and compare Incell (a type of LCD), Hard OLED (using a rigid glass substrate), and Soft OLED (using a flexible plastic substrate) technologies in the context of replacement phone screens.. ↩
"Unique Value Proposition - Institute For Strategy And Competitiveness", https://www.isc.hbs.edu/strategy/creating-a-successful-strategy/Pages/unique-value-proposition.aspx. Business management principles emphasize that procurement should be a strategic function aligned with the company's overall business model. The choice of supplier or product type should support the company's specific value proposition, whether that is based on brand trust, price leadership, or customized service. Evidence role: general_support; source type: education. Supports: The source should explain that effective sourcing strategy involves more than just comparing product quality; it requires selecting suppliers and products that align with the business's market position, such as selling on brand recognition versus offering a white-label solution.. ↩
"The OLED's biggest flaw: Mura : r/SteamDeck - Reddit", https://www.reddit.com/r/SteamDeck/comments/1eycfgp/the_oleds_biggest_flaw_mura/. Display technology resources explain that the 'Mura' effect refers to irregular brightness or color variations on OLED screens. 'Demura' is a calibration process that measures these inconsistencies and applies corrections to create a more uniform image. Evidence role: definition; source type: education. Supports: The source should define the Mura effect as a non-uniformity or cloudiness in display brightness and explain that Demura is a compensation process used during manufacturing to improve the visual uniformity of OLED screens.. ↩
"Variable refresh rate", https://en.wikipedia.org/wiki/Variable_refresh_rate. Technical sources note that displays with a 120Hz refresh rate update the image 120 times per second, double the standard 60Hz. This results in noticeably smoother animations and user interface interactions, a feature Apple markets as ProMotion on its higher-end iPhone models. Evidence role: definition; source type: encyclopedia. Supports: The source should explain that a 120Hz refresh rate, as seen in Apple's ProMotion displays, allows for smoother scrolling, more responsive touch input, and improved motion clarity compared to standard 60Hz screens.. Scope note: The source would explain the technology but would not verify if this specific aftermarket part successfully replicates the feature. ↩
"Margin Protection - USDA Risk Management Agency", https://rma.usda.gov/policy-procedure/general-policies/margin-protection. Business strategy resources explain that white-labeling allows a company to sell a product under its own brand, obscuring the original manufacturer. This prevents customers from price-shopping the original branded item elsewhere, thereby protecting the reseller's margins and fostering customer loyalty to the reseller's brand rather than the supplier's. Evidence role: general_support; source type: education. Supports: The source should explain that a white-label strategy allows a reseller to build their own brand identity around a product. By obscuring the original manufacturer, it prevents customers from sourcing the same item directly or from a competitor, thus protecting the reseller's pricing power and customer relationships.. ↩
