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TCL S45H 2.0 Sound Bar for Smart TV | Dolby Atmos vs TCL S55H 2.1 Sound Bar with Wireless Subwoofer for

Updated July 2026 — TCL S55H 2.1 Sound Bar with Wireless Subwoofer for leads on subwoofer height and subwoofer width.

The TCL S55H offers superior audio performance with a wireless subwoofer, making it the better choice for immersive sound. However, the TCL S45H is a more budget-friendly option.

Why TCL S45H 2.0 Sound Bar for Smart TV | Dolby Atmos is better

Price

S45H is $79.99, cheaper than S55H at $129.99.

Size

Both soundbars have the same dimensions.

Setup

Both models offer easy plug-and-play setup.

Why TCL S55H 2.1 Sound Bar with Wireless Subwoofer for is better

Power

S55H has 220W power compared to S45H's 100W.

Bass

S55H includes a wireless subwoofer for deep bass.

Audio Quality

S55H provides a richer audio experience.

Overall score

TCL S45H 2.0 Sound Bar for Smart TV | Dolby Atmos
75
TCL S55H 2.1 Sound Bar with Wireless Subwoofer for
85

Specifications

SpecTCL S45H 2.0 Sound Bar for Smart TV | Dolby AtmosTCL S55H 2.1 Sound Bar with Wireless Subwoofer for
Total Power100W220W
Wireless SubwooferNoYes
Bluetooth Version5.25.2
Room CalibrationYesYes
Price$79.99$129.99

Dimension comparison

TCL S45H 2.0 Sound Bar for Smart TV | Dolby AtmosTCL S55H 2.1 Sound Bar with Wireless Subwoofer for

Design and Build Quality

Both the TCL S45H 2.0 Sound Bar and the TCL S55H 2.1 Sound Bar feature a sleek, low-profile design that fits neatly under your TV. However, the S55H includes a wireless subwoofer, enhancing its aesthetic appeal and sound quality. The S45H measures 31.89" W x 2.36" H x 3.86" D, designed to blend seamlessly into your home entertainment setup, while the S55H shares the same dimensions for the soundbar but adds a subwoofer that measures 7.68" W x 12.60" H x 7.68" D. Both models exhibit a premium feel, steering clear of the bulkiness often associated with lower-end alternatives.

Audio Performance

The primary distinction between the two soundbars lies in their audio performance. The S45H offers a total power output of 100 watts, delivering clear and dynamic sound ideal for small to medium rooms. In contrast, the S55H boasts a more robust 220 watts of power, thanks to its wireless subwoofer, which enhances the overall sound experience by providing deep, room-filling bass. This difference translates into a richer audio experience, particularly for those who appreciate cinematic sound in movies and games.

Connectivity Options

When it comes to connectivity, both soundbars exhibit versatility, supporting HDMI eARC/ARC, optical, Bluetooth, and AUX connections. This allows for seamless integration with any smart TV or audio device. Both models are equipped with Bluetooth 5.2 for wireless streaming, making it easy to connect to smartphones and tablets. The S45H and S55H both provide similar connectivity options, ensuring that users can enjoy their favorite media without hassle.

Smart Features

The AI Sonic Auto Room Calibration is a standout feature in both soundbars. This technology automatically adjusts audio settings based on the room's layout and listening position, ensuring an optimal sound experience. Users can easily set this up via the TCL app, which simplifies the initial installation process. As such, both the S45H and S55H provide an intelligent audio solution that enhances the user experience without requiring extensive technical knowledge.

Price Comparison

The TCL S45H is priced at $79.99, making it about 38% cheaper than the TCL S55H, which retails for $129.99. This price difference may influence buyers on a budget looking for quality audio without the extra cost associated with a subwoofer. While the S45H delivers excellent sound, the added price of the S55H reflects its superior performance and features, particularly for audiophiles seeking deep bass and increased power.

Sales Performance

In terms of market performance, both soundbars are popular choices among consumers, with the S45H holding a bestseller rank of 1824 and the S55H slightly higher at 1884. This indicates that both products are well-received, although the S45H's lower price point may contribute to its higher sales rank. Customers are drawn to the affordability and reliable performance of the S45H, while the S55H appeals to those willing to invest more for enhanced audio capabilities.

User Experience and Setup

Both soundbars are designed for easy setup, featuring plug-and-play capabilities and intuitive remote controls. Users can expect a straightforward installation process, regardless of which model they choose. The S45H includes an HDMI cable, power cord, and a remote with batteries, while the S55H offers the same, along with its wireless subwoofer. This ensures that users can quickly get their systems up and running without any technical hassle.

Which should you buy?

If you are looking for a budget-friendly option that still delivers quality sound, the TCL S45H 2.0 Sound Bar is a solid choice at $79.99. However, if you desire a more immersive audio experience with deep bass and higher power output, the TCL S55H 2.1 Sound Bar, priced at $129.99, is worth the investment. Ultimately, the decision will come down to your specific audio needs and budget.