How do you test for dead or stuck pixels on a retro handheld?

Open this test suite in your handheld's browser and tap the full-screen color swatches (Pure Red, Green, Blue, White, and Black). Inspect the display carefully: a dead pixel will appear as a permanent dark black spot on bright colors, while a stuck subpixel will glow permanently red, green, or blue on a black background.

Why do dark retro games look washed out or crushed on my handheld?

Incorrect gamma and black level clipping cause shadow details to blend into pitch black. Use our 16-step Grayscale Ramp to adjust brightness and contrast until step 1 (the darkest gray, value 16) is faintly distinguishable from step 0 (pure black, value 0).

How do you fix motion ghosting and smearing on IPS handheld displays?

Budget handheld displays (such as older TFT and lower-grade IPS panels in sub-$60 devices) have high pixel response times (15-25ms). While hardware response time cannot be physically changed, disabling heavy post-processing shaders and enabling RetroArch 'Black Frame Insertion' (BFI) on 120Hz displays (like Odin 2 Portal or RP5) significantly sharpens motion clarity.

Which retro handhelds feature OLED displays?

Handhelds with genuine OLED displays include the Retroid Pocket 5 (5.5-inch 1080p AMOLED), Retroid Pocket Mini (3.7-inch 960p 4:3 OLED), Anbernic RG556 (5.48-inch 1080p AMOLED), Anbernic RG406V / RG406H, AYN Odin 2 Portal (7-inch 120Hz OLED), and Steam Deck OLED (7.4-inch 90Hz HDR OLED).

🖥️ BROWSER-BASED HARDWARE DISPLAY TEST SUITEDead Pixel • Grayscale • Ghosting UFO • Black Clipping

Handheld Display Calibration & Motion Tester

Open this page directly on your Retroid Pocket 5, AYN Odin 2, Anbernic RG35XX, or Steam Deck. Test for dead pixels, motion blur ghosting, black level crush, and calibrate your screen with zero app installations.

Test 01

Fullscreen Dead & Stuck Pixel Checker

Tap any color below to enter full-screen mode. Tap or click anywhere on the screen to cycle through colors, or press ESC / Back to exit.

Test 02

16-Step Grayscale & Black Level Clipping

Adjust your handheld display's brightness until you can barely distinguish Step 1 from Step 0 (pure black) without blowing out Step 15 (pure white).

Black Crush Detected?If steps 0, 1, 2, and 3 appear identical, your screen is crushing shadows. In dark retro games (e.g., Castlevania SOTN, Metroid Fusion), doors and corridors will turn pitch black. Raise display gamma or brightness by 5-10%.

White Clipping Detected?If steps 13, 14, and 15 merge into a single solid white block, contrast is clipped. In bright games (Zelda Wind Waker, Mario Sunshine), sky clouds and highlights will lose all texture.

Test 03

UFO Motion Ghosting & Smear Test

Watch the moving UFOs across the canvas. A fast panel will keep the alien eyes sharp. A slow IPS panel will leave a visible dark trail.

Speed:

OLED Panels (<1ms)Zero Smear / Crisp

Retroid Pocket 5, RG556, Steam Deck OLED show instant pixel transitions.

High-Grade IPS (5-8ms)Minimal Ghosting

AYN Odin 2, RG Cube, Miyoo Mini Plus have responsive liquid crystals.

Budget TFT/IPS (15-25ms)Noticeable Trailing

Sub-$40 clones and early RG35XX SP batches exhibit visible dark smearing in high-contrast scenes.

Retro Handheld Display Specifications & Panel Types

Audit of screen technology, aspect ratios, native resolutions, and color tuning capabilities across 24 devices.

Handheld	Screen Size	Panel Tech	Aspect Ratio	Resolution	Ideal Calibration Profile
Retroid Pocket 5	5.5" 1080p AMOLED	AMOLED / OLED	16:9	Native	sRGB Natural (Prevents neon oversaturation)
Retroid Pocket 4 Pro	4.7" 750x1334 IPS Touch	IPS LCD	16:9	Native	Standard D65 (6500K)
Anbernic RG556	5.48" 1080p AMOLED	AMOLED / OLED	16:9	1080p FHD	sRGB Natural (Prevents neon oversaturation)
Anbernic RG Cube / RG406V	3.95" 720x720 IPS	IPS LCD	1:1 (and 4:3 on RG406V)	Native	Standard D65 (6500K)
AYN Odin 2 Pro	6.0" 1080p IPS Touch	IPS LCD	16:9	Native	Standard D65 (6500K)
Anbernic RG35XX SP	3.5" 640x480 IPS OCA Laminated	IPS LCD	4:3	480p VGA	Standard D65 (6500K)
Anbernic RG40XX H	4.0" 640x480 IPS Ultra-Thin Bezel	IPS LCD	4:3	480p VGA	Standard D65 (6500K)
Miyoo Mini Plus	3.5" 640x480 IPS Laminated	IPS LCD	4:3	480p VGA	Standard D65 (6500K)
TrimUI Smart Pro	4.96" 1280x720 IPS Widescreen	IPS LCD	16:9	720p HD	Standard D65 (6500K)
Powkiddy RGB30	4.0" 720x720 LTPS IPS	IPS LCD	1:1	Native	Standard D65 (6500K)
iPhone 15 Pro / 16 (Delta & PPSSPP iOS)	6.1" - 6.9" Super Retina XDR OLED	AMOLED / OLED	19.5:9	Native	sRGB Natural (Prevents neon oversaturation)
Steam Deck OLED	7.4" 1280x800 HDR OLED	AMOLED / OLED	16:10	Native	sRGB Natural (Prevents neon oversaturation)
Retroid Pocket Mini	3.7" 1280x960 4:3 OLED	AMOLED / OLED	4:3	Native	sRGB Natural (Prevents neon oversaturation)
Anbernic RG406V	4.0" 960x720 IPS Touch	IPS LCD	4:3	Native	Standard D65 (6500K)
Anbernic RG405M	4.0" 640x480 IPS Touch	IPS LCD	4:3	480p VGA	Standard D65 (6500K)
AYN Odin 2 Mini	5.0" 1080p Mini-LED	IPS LCD	16:9	Native	Standard D65 (6500K)
TrimUI Brick	3.2" 1024x768 4:3 Ultra-High-DPI IPS	IPS LCD	4:3	Native	Standard D65 (6500K)
Powkiddy X55	5.5" 1280x720 IPS Widescreen	IPS LCD	16:9	720p HD	Standard D65 (6500K)
AYN Odin 2 Portal	7.0" 1080p 120Hz OLED	AMOLED / OLED	16:9	Native	sRGB Natural (Prevents neon oversaturation)
Retroid Pocket 2S	3.5" 640x480 4:3 IPS Touch	IPS LCD	4:3	480p VGA	Standard D65 (6500K)
Powkiddy V10	3.5" 480x320 3:2 IPS	IPS LCD	3:2	Native	Standard D65 (6500K)
Anbernic RG ARC-D	4.0" 640x480 4:3 IPS Touch	IPS LCD	4:3	480p VGA	Standard D65 (6500K)
Anbernic RG406H	4.0" 960x720 4:3 IPS Touch	IPS LCD	4:3	Native	Standard D65 (6500K)
Miyoo A30	2.8" 640x480 4:3 IPS OCA	IPS LCD	4:3	480p VGA	Standard D65 (6500K)

Display Tool →

Handheld Display Calibration & Motion Tester

Fullscreen Dead & Stuck Pixel Checker

16-Step Grayscale & Black Level Clipping

UFO Motion Ghosting & Smear Test

Retro Handheld Display Specifications & Panel Types

Integer Scaling Calculator

RetroArch Shaders Guide

Screen Aspect Ratio Visualizer