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| Phone | Cricket Debut S2 / AT&T Calypso 4 | ZTE Blade Z Max | Samsung SGH-X640 | ZTE Blade Max 2s |
| Current U.S. Carriers | AT&T | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
6.1" diag. 19.5 : 9 |
6" diag. 16 : 9 |
? |
6" diag. 18 : 9 |
| Display Resolution & Type |
720 x 1560 pixels (~282 ppi) LCD (TFT/TFD) |
1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
1080 x 2160 pixels (~402 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | 60 Hz | ? | 60 Hz |
| Battery | 3,000 mAh | 4,080 mAh | 800 mAh | 4,000 mAh |
| Processor | 2 GHz MediaTek Helio A22 (MT6761WB) | 1.4 GHz Qualcomm Snapdragon 435 (MSM8940) | ? | 1.4 GHz Qualcomm Snapdragon 435 (MSM8940) |
| RAM | 3 GB | 2 GB | ? | 2 GB |
| Storage | 64 GB | 32 GB | ? raw hardware | 32 GB |
| Main Camera | 8 megapixel | 16 megapixel | Yes | 13 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | 1080p HD | - | 1080p HD |
| Front Camera | 5 megapixel | 8 megapixel | - | 5 megapixel |
| Weight |
5.64 oz (160g) |
6.58 oz (186g) |
3 oz (85g) |
6.35 oz (180g) |
| Dimensions |
6.11" x 2.87" x 0.34" (155 x 73 x 8.6 mm) |
6.51" x 3.28" x 0.33" (165 x 83 x 8.3 mm) |
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) |
| Form Factor | Slab | Slab | Clamshell | Slab |
| Platform / OS | Android | Android | (proprietary) | Android |
| Network Bands |
4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66 WCDMA: 1, 2, 4, 5, 8 |
4G LTE: 2, 4, 5, 12, 66 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
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 |
| Data Technology | LTE (Cat 4) | LTE (Cat 6) | GPRS | LTE (Cat 6) |
| 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, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | n/a | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | - | Yes |
| USB |
Yes USB Type C |
Yes USB Type C |
- |
Yes USB Type C |
| Wi-Fi |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 4 (802.11 b,g,n) |
- |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | ||||
| Picture ID | n/a | n/a | Yes | n/a |
| Ringer ID | n/a | n/a | Yes | n/a |
| Customization | ||||
| Custom Graphics | n/a | n/a | Yes | n/a |
| Custom Ringtones | n/a | n/a | Yes | n/a |
| Data & Network | ||||
| WAP / Web Browser | n/a | n/a | Yes | n/a |
| Input | ||||
| Predictive Text Entry | n/a | n/a | Yes | n/a |
| Side Keys | 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 | n/a | Yes | n/a |
| MMS | n/a | n/a | Yes | n/a |
| Text Messaging Templates | n/a | n/a | Yes | n/a |
| Music | ||||
| FM Radio | - | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | Yes | - | Yes |
| Power | ||||
| Fast Charging | Yes | Yes | - | Yes |
| Productivity | ||||
| Alarm | n/a | n/a | Yes | n/a |
| Calculator | n/a | n/a | Yes | n/a |
| Calendar | n/a | n/a | Yes | n/a |
| To-Do List | n/a | n/a | Yes | n/a |
| Voice Memo | n/a | n/a | Yes | n/a |
| Software | ||||
| Games | n/a | n/a | Yes | n/a |
| Java (J2ME) | n/a | n/a | Yes | n/a |
| Voice | ||||
| HD Voice | Yes | Yes | - | Yes |
| Headset Jack (2.5 mm) | n/a | n/a | Yes | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Cricket Debut S2 / AT&T Calypso 4 | ZTE Blade Z Max | Samsung SGH-X640 | ZTE Blade Max 2s | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Cricket Debut S2 / AT&T Calypso 4 | ZTE Blade Z Max | Samsung SGH-X640 | ZTE Blade Max 2s |
