When buying a Samsung Galaxy A-series replacement screen, the choice comes down to three grades — incell LCD, OLED and original — and the single most important factor is whether your model has an in-display fingerprint sensor, because budget incell/TFT screens don't support it. This guide explains the differences in plain English so you buy the right screen the first time.
The three Samsung screen grades explained
- Incell / TFT LCD — the cheapest grade. A bright, sharp, fully working LCD panel. Blacks are greyer and viewing angles weaker than AMOLED, and crucially it does not support in-display fingerprint sensors. Great value on models with a side-mounted fingerprint or where fingerprint isn't needed.
- OLED / AMOLED — matches the original display on Samsung's AMOLED models: deep blacks, vivid colour, and it supports the in-display fingerprint sensor. The best all-round value for most AMOLED A-series repairs.
- Original / service-pack — original-manufacturer grade, the closest to factory quality for brightness, colour and feel. Costs the most; best for nearly-new phones or resale.
The catch that catches everyone: the fingerprint sensor
Direct answer: the mistake buyers make most is fitting a cheap incell/TFT screen to a phone with an in-display fingerprint sensor — after which fingerprint unlock stops working. Here's the rule:
- Side-mounted fingerprint (in the power button) — common on budget models like the A05, A06, A16 and A17. Any grade works, so incell is great value.
- In-display fingerprint — common on AMOLED models like the A15, A24, A25, A34, A54 and A55. You need OLED (or original) to keep fingerprint unlock.
If you're not sure which your model has, check whether you unlock by touching the screen (in-display) or the side power button (side-mounted).
Which grade should you buy? A quick decision guide
| Your situation | Buy this grade |
|---|---|
| Budget model, side fingerprint, lowest cost | Incell / TFT |
| AMOLED model with in-display fingerprint | OLED |
| Want the original look and brightness | OLED or original |
| Nearly-new phone or reselling it | Original / service-pack |
| High-volume repair shop, cost-sensitive | Incell where fingerprint allows, else OLED |
With frame vs without frame
Whatever grade you choose, a with-frame assembly is easier to fit (transfer your parts into a ready-mounted screen), while a bare panel is cheaper but needs heat and adhesive to bond into your old frame. For most people the framed version is worth the small extra.
Model-specific buying guides
Why buy from Supreme Phone Parts?
- UK stock, dispatched from the UK — no long overseas waits.
- eBay Top Rated seller — trusted by UK repairers and repair shops.
- Every grade in stock — incell, OLED and original, so you can match the screen to the job.
- Trade & bulk pricing available for repair businesses.
Frequently asked questions
What's the difference between incell and OLED Samsung screens?
Incell is a cheaper LCD grade with greyer blacks that doesn't support in-display fingerprint sensors. OLED matches Samsung's original AMOLED displays and supports in-display fingerprint. Original grade is the closest to factory quality.
Will a cheap incell screen break my fingerprint sensor?
Only on models with an in-display fingerprint sensor — there, incell won't support it and you should buy OLED. On side-mounted-fingerprint models, incell is fine.
Which Samsung screen grade is best value?
OLED with frame is the best all-round value for AMOLED models; incell is the best value for budget models with a side-mounted fingerprint.
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