Blaupunkt BT03 vs Unix XB-U55 Ultra Star – Specs, Price & Comparison (2026)

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Brand	Blaupunkt	Unix
Model No	BT03	XB-U55 Ultra Star
Wired / Wireless	Bluetooth Speaker Specification	Bluetooth Speaker Specification
Driver Type	Dynamic	Dynamic

Driver Diameter	52 mm	57 mm
Impedance	NA	4 Ohms
Sensitivity	NA	85dB
Frequency Response	20 Hz - 20000 Hz	50Hz - 10KHz
Maximum Power Input	DC 5V 1A	DC 5V 2A
Maximum Power Output	5 W ( RMS )	5 W ( RMS )
Signal to Noise Ratio	NA	80dB

Wireless Technology	Bluetooth	Bluetooth
Bluetooth Version	5.0	5.0
Compatible Profiles	All Bluetooth Devices	All Bluetooth Devices
Supported Codecs	A2DP	MP3, SBC
Battery Type	Lithium-Ion Batteries	Lithium-Ion Batteries
Bluetooth Range	10 Meters	10 Meters
Battery Life	16 Hours	Up To 5 Hours
Charging Time	3 Hours	3 Hours

Noise Cancelling	NA	NA
Aux Connectivity	Yes	Yes
Weight	200 Gram	250 GM
Dimensions	138 mm X 60 mm X 138 mm	105 mm X 105 mm X 83 mm
Available Colors	Black, Blue, Grey	Black, Blue, Red, Green
Accessories	Blaupunkt BT03 Bluetooth Speaker USB Type-C Charging Cable User Manual	Unix XB-U55 Ultra Star Bluetooth Speaker User Manual USB Type-C Charging Cable
Other Features	Compatibility: Bluetooth, FM Redio, USB ,AUX, TF & Micro SD Card. A precision made 52mm speaker driver produces 5W of optimized sound that is perfect for personal use. 2 in 1 Function: Bluetooth Speaker and the design of the mobile holder make it more convenient for you to use. HD Sound- Blaupunkt BT03 delivers stunning sound with enhanced bass and crystal clear highs without distortion at any volume. You get Bluetooth to connect with devices and when you need to you can slip in a cable into the AUX port. There is no stopping the music. Built-in 1200mAh rechargeable battery, it can be played continuously for upto 7-8 hours. The long playing time will allow you enjoy music indoor and outdoor activities with perfect immersive sound.	Long-lasting entertainment with a 1200mAh battery, providing up to 5 hours of playtime. Seamless wireless connectivity with Bluetooth 5.0 and a range of 10 meters for convenience. Enjoy a vibrant audio experience with a 5W speaker, equipped with a 57mm magnetic driver and vibration film. Experience an enhanced visual experience with the built-in RGB light, adding an attractive aesthetic to your music setup. Versatile support for various modes, including TF card, USB, FM, and Bluetooth, making it suitable for various audio sources. Compact and stylish design, measuring 105mm long, 83mm wide, and 105mm high, with color options in black, red, blue, and military green. Elevate your auditory experience with the Unix XB-U55 Ultra Star Wireless Speaker. Packed with powerful features and a sleek design, this speaker is designed to enhance your music and entertainment on the go.
	Compare Blaupunkt BT03 with: Unix India Mystic Zebronics Zeb-Delight boAt Stone 180 Unix UX-887 Buzz Beat Party Unix Discovery Bluetooth Speaker	Compare Unix XB-U55 Ultra Star with: Krisons Wonder Soundbar boAt Stone 149 boAt Stone 800 boAt Stone E 300 Unix India Mystic

Key Differences

Both systems aim to provide room-filling sound suitable for various entertainment needs. Blaupunkt BT03 and Unix XB-U55 Ultra Star are feature-rich speaker setups offering a combination of powerful sound, surround experience, and connectivity options. Both models offer multiple connectivity options for seamless integration with TVs and other devices. Variations in sound output and surround capabilities affect how immersive the audio experience feels. Advanced sound technologies play a major role in delivering a more immersive audio experience.

Verdict: Both speakers offer strong performance, and the better choice depends on your preference for power, surround sound, and features.

Top Differences

Bluetooth: na vs yes
Frequency Response: 20 Hz - 20000 Hz vs 50Hz - 10KHz
Subwoofer Size: 52 mm vs 57 mm

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Key Differences

Top Differences