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| Phone | Samsung SGH-X640 | ZTE Blade Max 2s | Cricket Debut S2 / AT&T Calypso 4 | UTStarcom PPC-6700 / XV-6700 / HTC Apache | HTC EVO 4G LTE |
| Current U.S. Carriers | (none) | (none) | AT&T | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
6" diag. 18 : 9 |
6.1" diag. 19.5 : 9 |
? |
4.7" diag. 16 : 9 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
1080 x 2160 pixels (~402 ppi) LCD (TFT/TFD) |
720 x 1560 pixels (~282 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
720 x 1280 pixels (~312 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | ? | 60 Hz |
| Battery | 800 mAh | 4,000 mAh | 3,000 mAh | 1,350 mAh | 2,000 mAh |
| Processor | ? | 1.4 GHz Qualcomm Snapdragon 435 (MSM8940) | 2 GHz MediaTek Helio A22 (MT6761WB) | 416 MHz Intel | 1.5 GHz Qualcomm Snapdragon S4 |
| RAM | ? | 2 GB | 3 GB | ? | 1 GB |
| Storage | ? raw hardware | 32 GB | 64 GB | ? raw hardware | 16 GB |
| Main Camera | Yes | 13 megapixel | 8 megapixel | 1 megapixel | 8 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | 1080p HD | ? | ? | 1080p HD |
| Front Camera | - | 5 megapixel | 5 megapixel | - | 1 megapixel |
| Weight |
3 oz (85g) |
6.35 oz (180g) |
5.64 oz (160g) |
6.07 oz (172g) |
5.05 oz (143g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
6.26" x 2.96" x 0.32" (159 x 75 x 8.1 mm) |
6.11" x 2.87" x 0.34" (155 x 73 x 8.6 mm) |
4.25" x 2.32" x 0.93" (108 x 59 x 23.6 mm) |
5.3" x 2.7" x 0.35" (135 x 69 x 8.9 mm) |
| Form Factor | Clamshell | Slab | Slab | Slide | Slab |
| Platform / OS | (proprietary) | Android | Android | Windows Mobile Professional | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 13, 25, 26, 41 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66 WCDMA: 1, 2, 4, 5, 8 |
CDMA: 850, 1900 |
4G LTE: 25 CDMA: 800, 850, 1900 |
| Data Technology | GPRS | LTE (Cat 6) | LTE (Cat 4) | EVDO r0 | LTE (Cat 3) |
| Features | |||||
| Fingerprint Reader | - |
Yes stand-alone |
- | - | - |
| Flashlight | - | Yes | Yes | - | - |
| GPS / Location | - | n/a | n/a | n/a | n/a |
| Accessibility | |||||
| Hearing Aid Compatible | - |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
- |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | Yes | - | Yes | Yes |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| Infrared (IR) | - | - | - | Yes | - |
| Mobile Hotspot | - | n/a | n/a | n/a | n/a |
| NFC | - | - | - | - | Yes |
| USB | - |
Yes USB Type C |
Yes USB Type C |
Yes Mini-USB |
Yes Micro-USB |
| Wi-Fi | - |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
Yes |
Yes 4 (802.11 a,b,g,n) |
| Contacts | |||||
| Picture ID | Yes | n/a | n/a | n/a | n/a |
| Ringer ID | Yes | n/a | n/a | n/a | n/a |
| Voice Dialing | - | n/a | n/a | n/a | n/a |
| Customization | |||||
| Custom Graphics | Yes | n/a | n/a | n/a | n/a |
| Custom Ringtones | Yes | n/a | n/a | n/a | n/a |
| Real-Music Ringers | - | n/a | n/a | n/a | n/a |
| Data & Network | |||||
| Data Tethering | - | n/a | n/a | n/a | n/a |
| WAP / Web Browser | Yes | n/a | n/a | n/a | n/a |
| Input | |||||
| Predictive Text Entry | Yes | n/a | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes | - |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
Yes |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | n/a | n/a | n/a |
| EMS / Picture Messaging | Yes | n/a | n/a | n/a | n/a |
| Instant Messaging | - | n/a | n/a | n/a | n/a |
| MMS | Yes | n/a | n/a | n/a | n/a |
| Text Messaging Templates | Yes | n/a | n/a | n/a | n/a |
| Music | |||||
| Headphone Jack (3.5mm) | - | Yes | Yes | - | Yes |
| Music Player | - | n/a | n/a | n/a | n/a |
| Photo & Video | |||||
| DLNA | - | - | - | - | Yes |
| Power | |||||
| Fast Charging | - | Yes | Yes | - | - |
| Productivity | |||||
| Alarm | Yes | n/a | n/a | n/a | n/a |
| Calculator | Yes | n/a | n/a | n/a | n/a |
| Calendar | Yes | n/a | n/a | n/a | n/a |
| To-Do List | Yes | n/a | n/a | n/a | n/a |
| Voice Memo | Yes | n/a | n/a | n/a | n/a |
| Software | |||||
| Games | Yes | n/a | n/a | n/a | n/a |
| Java (J2ME) | Yes | n/a | n/a | n/a | n/a |
| Voice | |||||
| HD Voice | - | Yes | Yes | - | Yes |
| Headset Jack (2.5 mm) | Yes | n/a | n/a | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | ZTE Blade Max 2s | Cricket Debut S2 / AT&T Calypso 4 | UTStarcom PPC-6700 / XV-6700 / HTC Apache | HTC EVO 4G LTE | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | ZTE Blade Max 2s | Cricket Debut S2 / AT&T Calypso 4 | UTStarcom PPC-6700 / XV-6700 / HTC Apache | HTC EVO 4G LTE |
