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| Phone | Cricket Debut S2 / AT&T Calypso 4 | Samsung SGH-X640 | ZTE Blade Z Max | Coolpad Conjr | Samsung SGH-X400 |
| Current U.S. Carriers | AT&T | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
6.1" diag. 19.5 : 9 |
? |
6" diag. 16 : 9 |
5" diag. 16 : 9 |
? |
| Display Resolution & Type |
720 x 1560 pixels (~282 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz | 60 Hz | ? |
| Battery | 3,000 mAh | 800 mAh | 4,080 mAh | 2,500 mAh | 620 mAh |
| Processor | 2 GHz MediaTek Helio A22 (MT6761WB) | ? | 1.4 GHz Qualcomm Snapdragon 435 (MSM8940) | 1 GHz MediaTek MT6735 | ? |
| RAM | 3 GB | ? | 2 GB | 3 GB | ? |
| Storage | 64 GB | ? raw hardware | 32 GB | 16 GB | ? raw hardware |
| Main Camera | 8 megapixel | Yes | 16 megapixel | 13 megapixel | - |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | ? | - | 1080p HD | 1080p HD | - |
| Front Camera | 5 megapixel | - | 8 megapixel | 8 megapixel | - |
| Weight |
5.64 oz (160g) |
3 oz (85g) |
6.58 oz (186g) |
5.14 oz (146g) |
3.17 oz (90g) |
| Dimensions |
6.11" x 2.87" x 0.34" (155 x 73 x 8.6 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
6.51" x 3.28" x 0.33" (165 x 83 x 8.3 mm) |
5.72" x 2.86" x 0.35" (145 x 73 x 8.8 mm) |
3.39" x 1.81" x 0.8" (86 x 46 x 20.3 mm) |
| Form Factor | Slab | Clamshell | Slab | Slab | Clamshell |
| Platform / OS | Android | (proprietary) | Android | Android | (proprietary) |
| Network Bands |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66 WCDMA: 1, 2, 4, 5, 8 |
GSM: 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 66 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 7, 12 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | LTE (Cat 4) | GPRS | LTE (Cat 6) | LTE (Cat 4) | GPRS |
| Features | |||||
| Fingerprint Reader | - | - |
Yes stand-alone |
Yes stand-alone |
- |
| Flashlight | Yes | - | Yes | Yes | - |
| Accessibility | |||||
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
- |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
- |
| Multiple Languages | n/a | Yes | n/a | n/a | Yes |
| TTY/TDD (Digital) | - | - | Yes | Yes | - |
| Alerts | |||||
| Extra Display | - | - | - | - | Yes |
| Connectivity | |||||
| Bluetooth | Yes | - | Yes | Yes | - |
| Infrared (IR) | - | - | - | - | Yes |
| USB |
Yes USB Type C |
- |
Yes USB Type C |
Yes Micro-USB |
- |
| Wi-Fi |
Yes 5 (802.11 a,ac,b,g,n) |
- |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | |||||
| Picture ID | n/a | Yes | n/a | n/a | Yes |
| Ringer ID | n/a | Yes | n/a | n/a | Yes |
| Customization | |||||
| Custom Graphics | n/a | Yes | n/a | n/a | Yes |
| Custom Ringtones | n/a | Yes | n/a | n/a | Yes |
| Data & Network | |||||
| Dual-SIM | - | - | - | Yes | - |
| WAP / Web Browser | n/a | Yes | n/a | n/a | Yes |
| Input | |||||
| Predictive Text Entry | n/a | Yes | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
Yes Capacitive |
- |
| Memory | |||||
| Memory Card Slot | Yes | - | Yes | Yes | - |
| Messaging | |||||
| EMS / Picture Messaging | n/a | Yes | n/a | n/a | Yes |
| MMS | n/a | Yes | n/a | n/a | - |
| Text Messaging Templates | n/a | Yes | n/a | n/a | Yes |
| Music | |||||
| FM Radio | - | - | Yes | - | Yes |
| Headphone Jack (3.5mm) | Yes | - | Yes | Yes | - |
| Power | |||||
| Fast Charging | Yes | - | Yes | - | - |
| Productivity | |||||
| Alarm | n/a | Yes | n/a | n/a | Yes |
| Calculator | n/a | Yes | n/a | n/a | Yes |
| Calendar | n/a | Yes | n/a | n/a | Yes |
| To-Do List | n/a | Yes | n/a | n/a | Yes |
| Voice Memo | n/a | Yes | n/a | n/a | - |
| Software | |||||
| Games | n/a | Yes | n/a | n/a | Yes |
| Java (J2ME) | n/a | Yes | n/a | n/a | Yes |
| Voice | |||||
| HD Voice | Yes | - | Yes | - | - |
| Headset Jack (2.5 mm) | n/a | Yes | n/a | n/a | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes | - |
| Cricket Debut S2 / AT&T Calypso 4 | Samsung SGH-X640 | ZTE Blade Z Max | Coolpad Conjr | Samsung SGH-X400 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Cricket Debut S2 / AT&T Calypso 4 | Samsung SGH-X640 | ZTE Blade Z Max | Coolpad Conjr | Samsung SGH-X400 |
