The Complete Guide to Samsung 55-inch TV Dimensions in CM

Hi there! As a home theater enthusiast, let me walk you through everything you need to know about the size, picture quality, placement, and viewing experience of Samsung‘s popular 55-inch TVs. I‘ll compare the different display types like QLED vs OLED, optimal viewing angles and distance, gaming performance, audio quality, and plenty more technical but important factors. My goal is to help you make the most informed decision and set up your new Samsung TV perfectly. Let‘s dive in!

Samsung 55-Inch TV Dimensions in CM – How Big is the Screen?

The most common measurement for TV screens is the diagonal length from corner to corner. For a 55-inch Samsung TV, this diagonal dimension is around 140 cm.

But the width and height are just as crucial for ensuring your new TV fits into your intended space. Without the outer bezel, a Samsung 55-inch screen measures:

• Width: Around 121 cm
• Height: Around 71 cm

If you‘re placing your TV into an existing entertainment unit, be sure to measure the inner width and height dimensions to ensure the 55-inch TV can fit.

The bezel or outer frame around the edges adds a bit more width and height. Expect up to 5 cm extra width and height depending on the model.

Measuring the diagonal TV screen size from corner to corner. Image Credit: RTings

Below are some other common diagonal dimensions for popular TV sizes:

So if upgrading from an old 32-inch screen to a new 55-inch Samsung TV, double check that your existing TV stand or wall mount can accommodate the larger size.

Comparing Samsung QLED vs. OLED TV Dimensions

Two premium TV technologies to consider from Samsung and LG are:

• QLED – Samsung‘s proprietary quantum dot LED backlit displays

• OLED – LG‘s self-emitting organic LED pixel panels

Here are the dimensions of LG‘s highly rated 55-inch C9 OLED TV:

• Width: 122.7 cm
• Height: 70.6 cm
• Depth: 4.57 cm

As you can see, very similar dimensions to Samsung‘s QLED TVs! But with the slim profile and stunning image quality of OLED.

However, Samsung‘s QLED models can achieve higher peak brightness levels, minimized risk of burn-in, and excellent black levels. So both are excellent options worthy of consideration.

Factors That Enhance Picture Quality

Beyond just the panel type, here are some extra features and specs to look for:

• Resolution – Look for 4K (3840 x 2160 pixels) or 8K models for the best clarity.

• High Dynamic Range (HDR) – HDR10 and Dolby Vision HDR produces brighter highlights and deeper blacks.

• Refresh Rate – 120Hz provides smoother motion clarity for sports, movies and gaming.

• Backlighting – Full array local dimming (FALD) gives finer control over backlight zones.

• Peak Brightness – Brighter displays with 1100+ nits handle daytime and HDR content better.

• Wide Color Gamut – Quantum dot and OLED TVs produce over a billion realistic colors.

• Smart Platform – WebOS, Tizen, Fire TV offer solid app/streaming selection and voice control.

Prioritize the performance metrics that matter most to you, whether it‘s sports handling, HDR performance, or deep black levels.

Wall Mount Recommendations and VESA Compatibility

When wall mounting a 55-inch Samsung TV, you‘ll need a mount compatible with VESA 400×400 hole patterns.

Look for mounts offering:

• Compatibility: VESA / hole patterns between 200×200 to 400×400 mm
• Weight support: 45-60 lbs minimum
• Range of motion: Full articulating arm for flexible swivel and tilt
• Profile: Low-profile 2" – 3” depth to hug wall

I recommend mounts with articulating arms for optimal viewing angle flexibility. Fixed mounts can angle the TV down but lack side-to-side swivel.

Here are top-rated articulating wall mounts for 55-inch Samsung TVs:

• MountIt Full Motion Articulating TV Mount – VESA 600×400, 66 lb capacity
• PERLESMITH Universal TV Mount – VESA 400×400, 44-88 lbs
• Wali Articulating Dual Arm TV Mount – VESA 400×400, 66 lbs

Be sure to match the exact VESA dimensions and weight capacity for your model. Then use a mount with at least 10° of tilt to angle the screen down slightly towards the viewer.

Ideal Viewing Distance for a 55-inch 4K TV

Bigger doesn‘t always mean better when it comes to TV size. Make sure to choose a screen that fits both your room and typical viewing distance.

As a general rule of thumb:

• 720p HD – 1 to 1.5 times the screen size
• 1080p Full HD – 1.5 to 2.5 times the screen size
• 4K UHD – 2 to 3 times the screen size

So for a 55-inch 4K Samsung TV, the ideal viewing range is:

• Minimum: 2 x 55-inch = 110 inches or 2.8 meters
• Maximum: 3 x 55-inch = 165 inches or 4 meters

THX recommends a viewing angle around 40 degrees for best immersion:

THX recommended viewing angle for optimal immersion. Credit: Crutchfield

Follow their formula: Viewing distance x 0.835 = Ideal screen size

So at 3 meters away:

• 3 meters x 0.835 = 150 inches or around 140 cm.

This matches the 55-inch Samsung diagonal size.

Mounting Height for Proper Viewing Angle

Place the center of your new Samsung TV approximately at eye level when seated for optimal long-term viewing comfort.

For a 55-inch screen, the recommended mounting height is:

• 55-inch TV: 61 inches or 155 cm from floor to center of screen.

Of course this varies based on the seat height and your height when seated. Measure and mark the wall where your eyes hit to find the optimal center point.

Tilting the TV screen slightly down towards the viewers also improves the angle. Most wall mounts allow at least 10° of tilt.

Curved vs. Flat Screens – Which looks bigger?

With all else equal, a curved TV provides a more immersive viewing experience and appears larger than a flat TV:

• A 55-inch curved TV looks bigger than a 55-inch flat TV from the same distance.

The curved design creates a more cinema-like viewing experience for the viewer. However, flat screens work better for wide seating areas with multiple viewers across the room.

In small, narrow rooms, a curved display can provide a more engaging field of view. But flat panels are better suited for wide open living rooms.

Gaming Considerations for New Samsung TVs

For the smoothest 4K high FPS gaming, look for these helpful features:

• HDMI 2.1 ports: Enables 4K 120Hz gaming and Variable Refresh Rate.

• Variable Refresh Rate (VRR): Smooths out frame rate fluctuations.

• Auto Low Latency Mode: Minimizes input lag for responsive gaming.

• Black Frame Insertion (BFI): Reduces motion blur in fast action scenes.

Connect your PC or console directly to the TV‘s HDMI port. Game mode further minimizes input lag for a more responsive feel.

Optimal input lag for a great gaming experience is 15ms or less. Samsung‘s top models achieve impressively low input lag around 5 – 10ms.

Choosing the Right Sound System

While TV speakers have improved, I always recommend pairing your Samsung TV with an external sound system for the best audio experience.

For powerful, immersive surround sound, look for models with:

• Dolby Atmos – Creates life-like 3D audio stages

• Dedicated center channel – Anchor voices to the screen

• Multiple drivers – Deliver clean mids/highs and deep bass

• Wireless subwoofer – Provides punchy, floor-shaking bass

• HDMI ARC connection – Simplifies setup through one cable

Soundbars like Samsung‘s HW-Q800B with Dolby Atmos provide stunning audio upgrade over TV speakers. And higher end systems take it to the next level.

If wall mounting, a soundbar also performs better than rear speakers placed behind the viewer. So factor that into the audio plan.

Pro Tips for Setup and Placement

Here are a few last recommendations for showcasing your new Samsung TV:

• Position the TV between 1.5 to 2.5 times the screen height from viewing seats. This prevents straining your eyes and provides proper immersion.

• Reduce glare by keeping light sources like lamps or windows to the side of the TV instead of directly opposite.

• Angle the TV down slightly and tilt your eyes up for ideal viewing angle.

• Manage cords by running cables through the wall or using low-profile raceways. This keeps the focus on the beautiful display.

• Professionally calibrate the TV to optimize the picture based on room conditions and your preferences.

• Enable CEC device control to easily control soundbar volume and streaming devices with the TV remote.

With the right 55-inch size, optimal viewing position, and immersive sound system, your Samsung TV will provide countless hours of mesmerizing entertainment. Let me know if you have any other questions! I‘m always happy to help a fellow home theater fan get the most enjoyment from their TV.