| Composition | KENWOOD KDC-4021 | JVC KD-R426 |
| Tuner | has a digital | has a digital |
| CD players | yes | yes |
| MP3-players | no | yes |
| DVD-player | | no |
| Blu-ray player | no | no |
| Amplifier | yes | yes |
| Equalizer | yes | yes |
| Navigator | no | no |
| TV tuner | | no |
| General characteristics | KENWOOD KDC-4021 | JVC KD-R426 |
| Frequency range | 10-20000 Hz | |
| Maximum power | 4x50 W | 4x50 W |
| Management changer | CD, MD | |
| Size | | 1 DIN |
| CD-changer interface is | custom | no |
| Color | | black |
| Supported carriers and formats | KENWOOD KDC-4021 | JVC KD-R426 |
| Formats | CD-Audio | CD Audio, MP3, WMA |
| Media | | CD-R, CD-RW |
| Display | KENWOOD KDC-4021 | JVC KD-R426 |
| Display type | bicolor | monochrome |
| Management | KENWOOD KDC-4021 | JVC KD-R426 |
| Pause when speaking on the phone | yes | |
| Infrared remote | | yes |
| Joystick on the steering wheel | no | no |
| Search for a folder/file | | yes |
| Auto plants | | yes |
| Interfaces | KENWOOD KDC-4021 | JVC KD-R426 |
| Connecting the ISO | yes | |
| Gold-plated connectors | yes | |
| Inputs | audio | USB |
| Audio input on the front panel | | yes |
| Outputs | audio | Subwoofer PreAmp |
| Bluetooth Support | | no |
| Protection | KENWOOD KDC-4021 | JVC KD-R426 |
| Detachable panel | yes | yes |
| Tuner | KENWOOD KDC-4021 | JVC KD-R426 |
| RDS | RDS RDS/EON | |
| Support band | FM, MW, LW | FM, MW |
| Tuner with long reception | | yes |
| Number of preset FM/AM | | 18 / 6 |
| Additional information | KENWOOD KDC-4021 | JVC KD-R426 |
| Signal/noise ratio | 96 dB | |
| Features | The system of coordinated management 3-band playback. Get a discount. Sleep timer (20/40/60 min). Possibility to change the button illumination. | |
| Adjusting the voice | | yes |
| The number of bit DAC | | 24 |
| ID3 tag support | | yes |
| CD-text | yes | yes |
| Tone compensation | yes | yes |
| Dimensions (WxHxD) | 180x50x150 mm | 182x52x160 mm |
