1.81 in 4.76 in  | 2.01 in 5.12 in  | |
| Available colors | ||
| User rating |
 Gigaset SL400A |  Gigaset SL450 | |
|---|---|---|
| Type | DECT telephone | Analog/DECT telephone |
| Intercall | yes | yes |
| Max number of earpieces | 6 | 6 |
| Max number of handsets | 6 | 6 |
| Phonebook | yes | yes |
| Number of phonebook entries | 500 | 500 |
| Range indoor | 50 | 50 |
| Range outdoor | 300 | 300 |
| SMS | yes | yes |
| Eco Dect | yes | yes |
| Gigaset SL400A | Gigaset SL450 | |
|---|---|---|
| Built-in display | yes | yes |
| Display resolution |
|
|
| Display diagonal | 1.8 in | 2.4 in |
| Display type | TFT | TFT |
| Screen resolution | 128 x 160 px | 240 x 320 px |
| Gigaset SL400A | Gigaset SL450 | |
|---|---|---|
| Width | 1.81 in | 2.01 in |
| Height | 4.76 in | 5.12 in |
| Depth | 0.63 in | 0.75 in |
| Gigaset SL400A | Gigaset SL450 | |
|---|---|---|
| Colour of product | Black,Silver |
|
| Mounting type | Desk | Desk |
| Volume control type | Digital | Digital |
| Backlit display | yes | yes |
| Backlit keypad | yes | yes |
| Gigaset SL400A | Gigaset SL450 | |
|---|---|---|
| Bluetooth | yes | yes |
| GAP-compatible | yes | yes |
| VoIP | no | no |
| Gigaset SL400A | Gigaset SL450 | |
|---|---|---|
| Battery capacity | 750.0 mAh | 200.0 mAh |
| Battery technology | Lithium-Ion | Lithium-Ion |
| Talk time | 14.0 h | 12.0 h |
| Stand by time | 230.0 h | 200.0 h |
| Gigaset SL400A | Gigaset SL450 | |
|---|---|---|
| Baby monitor function | yes | yes |
| Answering machine | yes | no |
| Speaker function | no | yes |
| Alarm clock | yes | yes |
| Wireless connection | yes | yes |
| Number of melodies | 23 | 22 |
| Caller ID | yes | yes |
| Vibration | yes | yes |
| Pros | ||
|---|---|---|
| Cons |
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