| Prices | Price (USD) | USD $10.00 USD |
|---|---|---|
| Network | Technology |
GSM
|
| Launch | Announced | 2004, Q2 |
| Status | Discontinued | |
| Body | Dimensions | 84 x 47 x 17 mm, 64 cc (3.31 x 1.85 x 0.67 in) |
| Weight | 84 g (2.96 oz) | |
| SIM | Mini-SIM | |
| Display | Type | TFT, 65K colors |
| Resolution | 128 x 128 pixels, 1:1 ratio | |
| Features | Incoming call LED with 7 colors Wallpapers, themes Downloadable logos | |
| Platform | OS | FeaturePhone |
| Chipset | Unisoc SC9832 (28 nm) | |
| CPU | Quad-core 1.4 GHz Cortex-A53 | |
| GPU | Mali-T820 MP1 | |
| Memory | Card slot | No |
| Phonebook | 300 x 5 fields, Photo call | |
| Call records | 10 dialed, 10 received, 10 missed calls | |
| Features | 300 short messages 1 MB for pictures and rigntones 700 KB for MMS | |
| Main Camera | Single | VGA |
| Features | LED flash | |
| Video | No | |
| Selfie camera | Single | 1.9MP, Primary Camera |
| Features | No | |
| Sound | Loudspeaker | No |
| 3.5mm jack | No | |
| Alert types | Vibration; Downloadable polyphonic ringtones | |
| Comms | WLAN | No |
| Bluetooth | No | |
| Positioning | No | |
| Radio | No | |
| Infrared port | Yes | |
| Features | Features | One push auto open Predictive text input Organizer Voice memo |
| Messaging | SMS, MMS | |
| Browser | WAP 2.0/xHTML | |
| Games | 1 - MobileGolf | |
| Java | Yes | |
| Battery | Type | Removable Li-Ion 600 mAh battery |
| Stand-by | Up to 210 h | |
| Talk time | Up to 4 h 30 min | |
| Misc | Colors | Black, Red, White |
Mini Review & Verdict
A smart summary of the Panasonic X400
Advantages
- Outstanding multi-day or week-long standby battery longevity between charges
- Tactile physical alphanumeric keypad providing positive-click dialing and messaging
- Tough, drop-resilient casing engineered to withstand everyday accidental drops
- Streamlined, distraction-free mobile experience dedicated strictly to core calling and SMS
Disadvantages
- Restricted to fundamental calling and text functions without modern app store ecosystems
- Compact non-touch display with modest resolution and limited viewing angles
- Rudimentary camera sensor designed only for basic snapshot documentation
Built with a steadfast commitment to straightforward utility and rugged durability, the Panasonic X400 stands as a dependable voice and text communicator. Featuring an ergonomic handheld footprint and a tactile physical alphanumeric keypad, the phone ensures swift, error-free dialing and messaging with positive physical key travel.
Operating without the bloated overhead of complex modern operating systems, the device delivers instant, lag-free responsiveness. Speaker acoustics are loud and punchy, ensuring clear voice call intelligibility even in bustling outdoor environments. A rudimentary camera sensor is included for quick, practical snapshots when documenting basic references.
Where this phone truly triumphs is power endurance: sustained by a 600mAh removable battery, it easily delivers multi-day or even week-long standby times between recharges. In summary, the Panasonic X400 is an unpretentious, rock-solid communication tool tailored for users seeking absolute reliability, simplicity, and unbeatable standby endurance.
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