| Functions | GAP | Compatible |
| SMS | no |
| SMS Log | no |
| Multiple Handsets | 6 |
| Clear Sound | Yes |
| One Touch Eco Mode | Yes |
| Handset | Voice Enhancer | yes |
| Navigation Key | yes |
| Joystick | no |
| Illuminated Keypad | Yes |
| Speakerphone | Yes |
| Headset Jack | no |
| Ringer LED | yes |
| Redial | Redial Memory | 10(Name & Number) |
| Auto Redial | no |
| Mute | Yes |
| Private Ringing | no |
| Caller ID | Caller ID Compatibility | yes |
| Caller ID Log | yes |
| Audible Caller ID | no |
| Phonebook | Number of Entries | 120 Stations (Name & Number) |
| Phonebook Copy | no |
| Ringer | Recordable Customised Ringer | no |
| Number of Melodies | 30 |
| Number of Tones (Pre-installed) | 10 |
| Download of Ringer Melodies | no |
| Ringer Volume (6 steps + off) | yes |
| Step-up Ringer | yes |
| Ringer Volume Steps | 6 steps + off |
| LCD | LCD Type | 1.8 inch FullDot Monochrome 103×65 pixels |
| LCD Backlight | White |
| Clock | Time & Date (Clock) | yes |
| Alarm | yes |
| Call Bar | no |
| Call Restriction | yes |
| Conference Call | yes |
| Key Lock | yes |
| Any Key Answer | yes |
| Multiple Language Display | yes (14) |
| Night Mode | yes |
| Walkie Talkie | no |
| SMS Text Entry Method | no |
| Voice Search for Phonebook | no |
| Ear Receiver Volume | 4 steps |
| Baby Monitor | no |
| PC Connection | no |
| Infrared | no |
| Battery | Battery Type | Rechargeable Ni-MH (AAA x 2) |
| Charge Time | 7Hours |
| Standby Time | Up To 170-Hour Standby |
| Talk Time | Up To 15-Hour Talk Time |
| Optional Handset | KX-TGA681 |
| Base Unit | Keypad | no |
| Navigation key | no |
| Phonebook | no |
| Wall Mount | no |
| Redial / Auto Redial | no |
| Caller ID | Caller ID Compatibility | no |
| Caller ID Log | no |
| Pause | no |
| Locator or Paging | yes |
| Dimensions | Base Unit (mm) | Width | 107.0 |
| Height | 77.0 |
| Depth | 86.0 |
| Handset (mm) | Width | 48.0 |
| Height | 164.0 |
| Depth | 29.0 |
| Charger (mm) | Width | 70.0 |
| Height | 39.0 |
| Depth | 70.0 |
| Weight | Base Unit (g) | 98.0 |
| Handset (g) | 129.0 |
| Charger (g) | 39. |