How to Compare Screen Sizes Online: The Visual Comparison Tool Guide

Trying to compare screen sizes before buying a new TV, monitor, or phone? You're not alone — screen size is the single most important spec when choosing any display. But comparing numbers on a spec sheet doesn't tell you how two screens will actually look side by side. That's where an online screen size comparison tool comes in. In this guide, we'll walk you through exactly how to visually compare any two screens, understand real dimensions, and make the right buying decision.

The fastest way to see the difference? Use the Easy Compare screen comparison tool — it renders any two screens at true scale so you can see exactly how they stack up.

Why Screen Size Comparison Matters More Than You Think

A screen's diagonal measurement (like 55" or 27") only tells part of the story. Two screens with the same diagonal can have very different widths and heights depending on the aspect ratio. For example, a 27-inch ultrawide monitor (21:9) is significantly wider but shorter than a standard 27-inch monitor (16:9). When you compare screen sizes visually, you account for these differences and get a true sense of how much space you're actually getting.

Here's why visual screen comparison is essential:

• Area matters more than diagonal: A 65" TV has 40% more screen area than a 55" TV, even though the diagonal is only 18% larger
• Aspect ratio changes everything: 16:9, 21:9, and 4:3 screens with the same diagonal look completely different
• Real-world fit: Seeing the actual width and height helps you know if a TV fits your wall or a monitor fits your desk
• Phone ergonomics: A 0.2" screen difference on a phone can change how it feels in your hand

How to Use an Online Screen Size Comparison Tool

Using a screen comparison tool is straightforward. Here's how to get the most accurate results:

Step 1: Select Your Device Type

Choose whether you're comparing TVs, monitors, phones, or tablets. Each category has common sizes pre-loaded so you can quickly pick from popular options like "65-inch TV" or "27-inch monitor" without typing dimensions manually.

Step 2: Pick Two Screens to Compare

Select or enter the diagonal size and aspect ratio for each screen. For example, compare a 55-inch TV (16:9) against a 65-inch TV (16:9) to see the exact size difference rendered at scale on your screen.

Step 3: View the Overlaid Comparison

The tool renders both screens as rectangles, overlaid on top of each other. You'll immediately see how much larger one is than the other in every dimension. Tools like Easy Compare also show you the exact width, height, and area calculations.

Step 4: Check the Specs Table

Beyond just visuals, a good comparison tool gives you a detailed spec breakdown — width, height, screen area, pixels per inch (PPI), and total pixel count. This helps you understand not just how big a screen is, but how sharp the image will be.

Common Screen Size Comparisons: The Numbers

Here are the real dimensions for the most popular screen size comparisons people search for:

As you can see, moving from a 55" to a 65" TV gives you over 500 additional square inches of screen area — that's a massive upgrade. Use Easy Compare's screen comparison tool to see this difference visually.

Screen Size Comparison for TVs: What You Need to Know

TVs are the most common screen comparison because the size difference between models is dramatic. Here are the key comparisons people make:

55 vs 65 Inch TV

The most popular TV comparison in 2025. The 65" gives you 40% more screen area than the 55". If your viewing distance is 7–9 feet, the 65" is the better choice. At 6 feet or less, the 55" works well. See our detailed 55 vs 65 inch TV comparison for the full breakdown.

65 vs 75 Inch TV

Jumping from 65" to 75" adds about 33% more screen area. This is the upgrade path for larger living rooms (12+ feet viewing distance). The 75" is noticeably more immersive for movies and sports but requires a larger wall or TV stand.

Small Room TVs: 43 vs 50 Inch

For bedrooms, kitchens, and apartments, the 43" vs 50" decision comes down to room size. A 50" TV is about 35% larger than a 43" — if you sit more than 6 feet away, go 50". Check our TV size for small rooms guide for more.

Screen Size Comparison for Monitors

Monitor comparisons are trickier because aspect ratios vary more. Here's what to keep in mind:

For a detailed breakdown, read our 27 vs 32 inch monitor guide and our ultrawide vs dual monitor comparison.

Phone Screen Size Comparison: The Compact Debate

Phone screen comparisons are increasingly popular as phones get larger. The key sizes to know in 2025:

The jump from 6.1" to 6.7" is significant — it adds about 20% more screen area, which makes a real difference for reading, gaming, and media. The jump from 6.7" to 6.9" is smaller (~6% more area) but still noticeable. Compare any two phones side by side using Easy Compare's phone screen comparison.

Understanding Aspect Ratios in Screen Comparison

Aspect ratio is the relationship between a screen's width and height. It dramatically affects how a screen size comparison looks in practice:

• 16:9 — Standard for TVs and most monitors. Widescreen format, great for movies and games
• 21:9 — Ultrawide monitors. Much wider than 16:9 at the same diagonal, perfect for multitasking
• 32:9 — Super ultrawide. Essentially two 16:9 monitors side by side in one panel
• 20:9 — Modern phone standard. Tall and narrow for comfortable one-handed scrolling
• 4:3 — Classic TV/tablet format. More square, less common in 2025

When you compare screen sizes, always check the aspect ratio. A 34" ultrawide (21:9) has a very different shape than a 34" TV (16:9 would not exist at 34", but this illustrates the point). The diagonal measurement alone doesn't tell you how wide or tall the display actually is.

Screen Size Comparison Tips for Smart Shopping

Before you buy any display, follow this screen comparison checklist:

1. Measure your space first — Know the maximum width and height available on your wall, desk, or entertainment center
2. Compare at true scale — Use Easy Compare to see both screens rendered at their real proportions
3. Factor in bezels — The screen size is just the display area. The actual device will be slightly larger due to bezels and the frame
4. Consider viewing distance — Bigger isn't always better if you sit too close. Use our viewing distance guides to find your ideal size
5. Check resolution vs size — A 32" monitor at 1080p looks blurry. The same size at 4K is razor sharp. Consider PPI (pixels per inch) alongside physical size

Frequently Asked Questions