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| Phone | Samsung SGH-X640 | Nokia G400 5G | ZTE Citrine |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
6.6" diag. 20 : 9 |
4" diag. 5 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
1080 x 2408 pixels (~401 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 120 Hz | 60 Hz |
| Battery | 800 mAh | 5,000 mAh | 1,650 mAh |
| Processor | ? | Snapdragon 480+ | ? |
| RAM | ? | 4 GB | 1 GB |
| Storage | ? raw hardware | 64 GB | 8 GB |
| Main Camera | Yes | 48 megapixel | 5 megapixel |
| Wide Camera | - | 5 megapixel | - |
| Tele Camera | - | - | - |
| Video Capture | - | 1080p HD | ? |
| Front Camera | - | 16 megapixel | Yes |
| Weight |
3 oz (85g) |
6.98 oz (198g) |
4.82 oz (137g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
6.55" x 3.02" x 0.35" (166 x 77 x 8.8 mm) |
4.92" x 2.56" x 0.41" (125 x 65 x 10.4 mm) |
| Form Factor | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
5G: 2, 5, 25, 41, 66, 71, 77-C 4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 38, 39, 40, 41, 66, 71 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | GPRS | NR (5G) | LTE (Cat 3) |
| Features | |||
| Barometer | - | Yes | - |
| Fingerprint Reader | - |
Yes stand-alone |
- |
| Flashlight | - | Yes | Yes |
| GPS / Location | - | n/a | n/a |
| Accessibility | |||
| Adjustable Text Size | - | n/a | n/a |
| Hearing Aid Compatible | - |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | - | Yes |
| Connectivity | |||
| Bluetooth | - | Yes | Yes |
| NFC | - | Yes | - |
| USB | - |
Yes USB Type C |
Yes Micro-USB |
| Wi-Fi | - |
Yes 5 (802.11 ac,b,g,n) |
Yes 4 (802.11 b,g,n) |
| Contacts | |||
| Picture ID | Yes | n/a | n/a |
| Ringer ID | Yes | n/a | n/a |
| Voice Dialing | - | n/a | n/a |
| Customization | |||
| Custom Graphics | Yes | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a |
| Real-Music Ringers | - | n/a | n/a |
| Data & Network | |||
| WAP / Web Browser | Yes | n/a | n/a |
| Input | |||
| Predictive Text Entry | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
Yes |
| Memory | |||
| Memory Card Slot | - | Yes | Yes |
| Messaging | |||
| Email Client | - | n/a | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a |
| Instant Messaging | - | n/a | n/a |
| MMS | Yes | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a |
| Music | |||
| FM Radio | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | Yes |
| Music Player | - | n/a | n/a |
| Power | |||
| Fast Charging | - | Yes | - |
| Productivity | |||
| Alarm | Yes | n/a | n/a |
| Calculator | Yes | n/a | n/a |
| Calendar | Yes | n/a | n/a |
| To-Do List | Yes | n/a | n/a |
| Voice Memo | Yes | n/a | n/a |
| Software | |||
| Games | Yes | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a |
| Voice | |||
| HD Voice | - | Yes | - |
| Headset Jack (2.5 mm) | Yes | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes |
| Samsung SGH-X640 | Nokia G400 5G | ZTE Citrine | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Nokia G400 5G | ZTE Citrine |
