boAt Rockerz 421 Wireless Headphones vs boAt Rockerz 550 Wireless Headphones
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General
| Brand | boAt | boAt |
| Model | Rockerz 421 | Rockerz 550 |
| Country of Origin | China | |
| Design | Headphone | Headphone |
| Type | Over the Ear | Over the Ear |
| Connectivity | Wireless, Wired | Wireless |
Design and Body
| Dimensions | 80 x 200 x 180 mm | |
| Weight | 200 g | 245 g |
| Cord Type | 3.5mm Jack | |
| Foldable | Yes |
Features
| Bluetooth | Yes, 5.4 | Yes, 5.0 |
| Bluetooth Range | 10 m | 10 m |
| USB | Yes | Yes |
| Microphone | Yes | Yes |
| Voice Assistant | Yes | Yes |
| Water Resistant | Yes | |
| Controls | Volume +/- | Volume Control |
| Music Controls | Pause/Play | Pause/Play |
| Switch between Call and Music | Yes | Yes |
| Additional Features | Adaptive Fit, 40ms Low Latency Beast Mode, Multipoint Connectivity, Type-C Charging, Easy Access Controls | IPX5 Rated, Multi Connectivity, Micro-USB Charging |
Sound Features
| Deep Bass | Yes | Yes |
| Impedance | 32 ohm | |
| Sensitivity | 90dB±3DB | |
| Frequency Response | 20 Hz (Min) - 20 kHz (Max) | 20 Hz (Min) - 20 kHz (Max) |
| Driver Unit | 40 mm | 50 mm |
| Driver Type | Dynamic | Dynamic Driver |
| Other Features | boAt Signature Sound |
Extra
| Sales Package | Headphones, Type-C Charging Cable, AUX Cable, User Manual, Warranty Card | 1 U Headphone, Charging Cable, AUX Cable, User Manual |
| Inline Remote | Yes | Yes |
Power Features
| Battery Capacity | 500 mAh | |
| Battery | Lithium Ion | Lithium-Ion |
| Battery Life | 40 hours | 20 hours |
| Charging Time | 2.5 hours | |
| Stand-by Time | 180 hours |
Warranty
| Warranty | 1 year, Manufacturer Warranty | 1 year |
| Warranty Type | Manufacturer | Manufacturer |
| Covered in Warranty | Manufacturing Defect | Manufacturing Defect |
| Not Covered in Warranty | Physical Damage | Physical Damage |
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