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| Phone | Samsung SGH-X640 | ZTE Flash | Bold N2 | Sharp Sidekick LX 2009 | Asus PadFone X mini |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
4.5" diag. 16 : 9 |
6.6" diag. 19.5 : 9 |
3.2" diag. 16 : 9 |
4.5" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
720 x 1280 pixels (~326 ppi) LCD (TFT/TFD) |
1080 x 2340 pixels (~390 ppi) AMOLED |
854 x 480 pixels (~306 ppi) LCD (TFT/TFD) |
480 x 854 pixels (~218 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | ? | 60 Hz |
| Battery | 800 mAh | 1,780 mAh | 4,200 mAh | 1,250 mAh | 2,060 mAh |
| Processor | ? | 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 | 2.4 GHz MediaTek Dimensity 810 | ? | 1.6 GHz Intel Atom Z2560 |
| RAM | ? | 1 GB | 8 GB | ? | 1 GB |
| Storage | ? raw hardware | 8 GB | 256 GB | ? raw hardware | 8 GB |
| Main Camera | Yes | 12 megapixel | 64 megapixel | 3 megapixel | 5 megapixel |
| Wide Camera | - | - | 5 megapixel | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 1080p HD | 2K / Quad HD | QVGA (320 x 240) | 1080p HD |
| Front Camera | - | 1 megapixel | 16 megapixel | - | 2 megapixel |
| Weight |
3 oz (85g) |
5.2 oz (147g) |
7.2 oz (204g) |
5.78 oz (164g) |
5.26 oz (149g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
5.27" x 2.56" x 0.38" (134 x 65 x 9.7 mm) |
6.64" x 3.02" x 0.35" (169 x 77 x 8.9 mm) |
5.12" x 2.36" x 0.63" (130 x 60 x 16 mm) |
5.2" x 2.61" x 0.5" (132 x 66 x 12.6 mm) |
| Form Factor | Clamshell | Slab | Slab | Swivel | Slab |
| Platform / OS | (proprietary) | Android | Android | (proprietary) | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
4G LTE: 25 CDMA: 800, 850, 1900 |
5G: 2, 5, 25, 41, 66, 71, 77-C 4G LTE: 2, 4, 5, 12, 13, 25, 26, 41, 66, 71 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | LTE (Cat 3) | NR (5G) | HSPA 7.2 | LTE (Cat 3) |
| Features | |||||
| Fingerprint Reader | - | - |
Yes in-display (optical) |
- | - |
| Flashlight | - | - | Yes | - | Yes |
| GPS / Location | - | n/a | n/a | Yes | n/a |
| Accessibility | |||||
| Adjustable Text Size | - | n/a | n/a | Yes | n/a |
| Hearing Aid Compatible | - | Yes | - | Yes | Yes |
| Multiple Languages | Yes | n/a | n/a | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | - | - | Yes |
| Alerts | |||||
| Ringer Profiles | - | - | - | Yes | - |
| Connectivity | |||||
| Bluetooth | - |
Yes Classic Audio |
Yes |
Yes Classic Audio |
Yes Classic Audio |
| Mobile Hotspot | - | n/a | n/a | - | n/a |
| NFC | - | Yes | - | - | - |
| USB | - |
Yes Micro-USB |
Yes USB Type C |
Yes |
Yes Micro-USB |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes 5 (802.11 ac,b,g,n) |
- |
Yes 4 (802.11 b,g,n) |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | Yes | n/a |
| Ringer ID | Yes | n/a | n/a | Yes | n/a |
| Voice Dialing | - | n/a | n/a | - | n/a |
| Customization | |||||
| Custom Graphics | Yes | n/a | n/a | Yes | n/a |
| Custom Ringtones | Yes | n/a | n/a | Yes | n/a |
| Real-Music Ringers | - | n/a | n/a | Yes | n/a |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | - | n/a |
| WAP / Web Browser | Yes | n/a | n/a | Yes | n/a |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | - | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes | - |
| Touch Screen | - | Yes | Yes | - | Yes |
| Memory | |||||
| Memory Card Slot | - | Yes | - | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | n/a | Yes | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a | - | n/a |
| Instant Messaging | - | n/a | n/a | Yes | n/a |
| MMS | Yes | n/a | n/a | Yes | n/a |
| Text Messaging Templates | Yes | n/a | n/a | Yes | n/a |
| Music | |||||
| Headphone Jack (3.5mm) | - | Yes | - | Yes | Yes |
| Music Player | - | n/a | n/a | Yes | n/a |
| Power | |||||
| Fast Charging | - | - | Yes | - | - |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | Yes | n/a |
| Calculator | Yes | n/a | n/a | - | n/a |
| Calendar | Yes | n/a | n/a | Yes | n/a |
| To-Do List | Yes | n/a | n/a | Yes | n/a |
| Voice Memo | Yes | n/a | n/a | - | n/a |
| Software | |||||
| Games | Yes | n/a | n/a | Yes | n/a |
| Java (J2ME) | Yes | n/a | n/a | Yes | n/a |
| Voice | |||||
| HD Voice | - | Yes | Yes | - | - |
| Headset Jack (2.5 mm) | Yes | n/a | n/a | - | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| Samsung SGH-X640 | ZTE Flash | Bold N2 | Sharp Sidekick LX 2009 | Asus PadFone X mini | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | ZTE Flash | Bold N2 | Sharp Sidekick LX 2009 | Asus PadFone X mini |
