Samsung SGH-X400 vs Samsung SGH-X450
| Type | Clamshell | Clamshell |
| Dimensions | 86.00 x 46.00 x 20.20 mm | 83.00 x 46.50 x 21.10 mm |
| Weight | 90.00 g | 79.00 g |
| Display size | - | - |
| Display | Mono / TFT 64k colors 128 x 160 px | Color / UFB 64k colors 128 x 160 px |
| Display protection | ||
| Additional display | Color / LCD 96 x 64 px | |
| Protection of the secondary display | ||
| Talk time (max.) | 2G: 180 min. (3.0 h) | 2G: 210 min. (3.5 h) |
| Stand-by (max.) | 2G: 260 h. (10.8 days) | 2G: 250 h. (10.4 days) |
| Standard battery | Li-Ion 620 mAhBuy powerbank
| Li-Ion 720 mAhBuy powerbank
|
| Quick battery charging | ||
| Wireless battery charging | ||
| Phonebook memory | 500 places | 1000 places |
| Memory cards | ||
| Touchscreen | ||
| SAR (10g) | 0,98 W/kg | |
| DualSIM | ||
| Other names | - | - |
| GSM frequencies | 900 1800 1900 | 900 1800 1900 |
| UMTS | ||
| LTE standard | ||
| CDMA | ||
| Standard TD-SCDMA | ||
| UMA |

