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| Phone | Samsung SGH-X640 | Samsung SPH-A520 | Motorola KRZR K1m | HTC G2 | Motorola Moto Z2 Force |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? | ? |
3.7" diag. 5 : 3 |
5.5" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
? LCD (STN) |
176 x 220 pixels LCD (TFT/TFD) |
480 x 800 pixels (~252 ppi) LCD (TFT/TFD) |
1440 x 2560 pixels (~534 ppi) AMOLED |
| Display Refresh | ? | ? | ? | 60 Hz | 60 Hz |
| Battery | 800 mAh | ? | 880 mAh | 1,300 mAh | 2,730 mAh |
| Processor | ? | ? | ? | 800 MHz Qualcomm S2 MSM7230 | 2.4 GHz Qualcomm Snapdragon 835 (MSM8998) |
| RAM | ? | ? | ? | ? | 4 GB |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware | 64 GB |
| Main Camera | Yes | - | 1 megapixel | 5 megapixel | 12 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | - | ? | 720p HD | 4K UHD |
| Front Camera | - | - | - | - | 5 megapixel |
| Weight |
3 oz (85g) |
3.6 oz (102g) |
3.63 oz (103g) |
6.5 oz (184g) |
5.04 oz (143g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
3.46" x 1.83" x 0.91" (88 x 46 x 23.1 mm) |
4.06" x 1.73" x 0.67" (103 x 44 x 17 mm) |
4.68" x 2.37" x 0.55" (119 x 60 x 14 mm) |
6.13" x 2.99" x 0.24" (156 x 76 x 6.1 mm) |
| Form Factor | Clamshell | Clamshell | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | Android | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
CDMA: 850, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 41, 66 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | 1xRTT | EVDO r0 | HSPA 14.4 | LTE (Cat 16) |
| Features | |||||
| Barometer | - | - | - | - | Yes |
| Fingerprint Reader | - | - | - | - |
Yes stand-alone |
| Flashlight | - | - | - | - | Yes |
| GPS / Location | - | Yes | Yes | n/a | n/a |
| VR-ready | - | - | - | - | Yes |
| Water-Resistant | - | - | - | - | Yes |
| Accessibility | |||||
| Hearing Aid Compatible | - | - |
Yes M3 (mostly compatible) |
Yes M3 (mostly compatible) |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | Yes | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | - | Yes | - | Yes |
| Alerts | |||||
| Extra Display | - | Yes | Yes | - | - |
| Ringer Profiles | - | - | Yes | - | - |
| Connectivity | |||||
| Bluetooth | - | - | Yes | Yes | Yes |
| Mobile Hotspot | - | - | - | n/a | n/a |
| NFC | - | - | - | - | Yes |
| USB | - | - |
Yes Mini-USB |
Yes |
Yes USB Type C |
| Wi-Fi | - | - | - |
Yes 4 (802.11 b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | |||||
| Picture ID | Yes | Yes | Yes | n/a | n/a |
| Ringer ID | Yes | Yes | Yes | n/a | n/a |
| Voice Dialing | - | Yes | Yes | n/a | n/a |
| Customization | |||||
| Custom Graphics | Yes | Yes | Yes | n/a | n/a |
| Custom Ringtones | Yes | Yes | Yes | n/a | n/a |
| Real-Music Ringers | - | - | - | n/a | n/a |
| Data & Network | |||||
| Data Tethering | - | Yes | Yes | n/a | n/a |
| Dual-SIM | - | - | - | - | Yes * |
| WAP / Web Browser | Yes | Yes | Yes | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | Yes | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes | - |
| Touch Screen | - | - | - |
Yes Capacitive |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | - | - | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | - | - | n/a | n/a |
| EMS / Picture Messaging | Yes | - | Yes | n/a | n/a |
| Instant Messaging | - | - | Yes * | n/a | n/a |
| MMS | Yes | - | Yes | n/a | n/a |
| Text Messaging Templates | Yes | - | Yes | n/a | n/a |
| Music | |||||
| Headphone Jack (3.5mm) | - | - | - | Yes | - |
| Music Player | - | - | Yes | n/a | n/a |
| Power | |||||
| Fast Charging | - | - | - | - | Yes |
| Productivity | |||||
| Alarm | Yes | Yes | Yes | n/a | n/a |
| Calculator | Yes | Yes | Yes | n/a | n/a |
| Calendar | Yes | Yes | Yes | n/a | n/a |
| To-Do List | Yes | Yes | - | n/a | n/a |
| Voice Memo | Yes | Yes | Yes | n/a | n/a |
| Software | |||||
| BREW | - | - | Yes * | n/a | n/a |
| Games | Yes | Yes | Yes | n/a | n/a |
| Java (J2ME) | Yes | - | Yes * | n/a | n/a |
| Voice | |||||
| HD Voice | - | - | - | - | Yes |
| Headset Jack (2.5 mm) | Yes | Yes | - | n/a | n/a |
| Speaker Phone | Yes | - | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | Samsung SPH-A520 | Motorola KRZR K1m | HTC G2 | Motorola Moto Z2 Force | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Samsung SPH-A520 | Motorola KRZR K1m | HTC G2 | Motorola Moto Z2 Force |
