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| Phone | ZTE Blade X Max | Ericsson R520 | Ericsson T66 | Samsung SGH-X640 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
6" diag. 16 : 9 |
? | ? | ? |
| Display Resolution & Type |
1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD) |
? | ? |
128 x 160 pixels LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | ? | ? |
| Battery | 3,400 mAh | ? | ? | 800 mAh |
| Processor | 1.4 GHz Qualcomm Snapdragon 435 (MSM8940) | ? | ? | ? |
| RAM | 2 GB | ? | ? | ? |
| Storage | 32 GB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 13 megapixel | - | - | Yes |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 1080p HD | - | - | - |
| Front Camera | 5 megapixel | - | - | - |
| Weight |
6.93 oz (196g) |
4.23 oz (120g) |
2.08 oz (59g) |
3 oz (85g) |
| Dimensions |
6.5" x 3.27" x 0.37" (165 x 83 x 9.4 mm) |
5.12" x 1.97" x 0.63" (130 x 50 x 16 mm) |
3.62" x 1.61" x 0.69" (92 x 41 x 17.5 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
| Form Factor | Slab | Slab | Slab | Clamshell |
| Platform / OS | Android | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
4G LTE: 2, 4, 5, 12 WCDMA: 1, 2, 4, 5 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | LTE (Cat 4) | GPRS | - | GPRS |
| Features | ||||
| Fingerprint Reader |
Yes stand-alone |
- | - | - |
| Flashlight | Yes | - | - | - |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M4, T3 (mostly tele-coil compatible) |
- | - | - |
| Multiple Languages | n/a | Yes | Yes | Yes |
| TTY/TDD (Digital) | Yes | - | - | - |
| Alerts | ||||
| Ringer Profiles | - | Yes | Yes | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | - | - |
| Infrared (IR) | - | Yes | - | - |
| USB |
Yes USB Type C |
- | - | - |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- | - | - |
| Contacts | ||||
| Picture ID | n/a | - | - | Yes |
| Ringer ID | n/a | - | - | Yes |
| Voice Dialing | n/a | Yes | - | - |
| Customization | ||||
| Custom Graphics | n/a | - | Yes | Yes |
| Custom Ringtones | n/a | Yes | Yes | Yes |
| Data & Network | ||||
| Data Tethering | n/a | Yes | - | - |
| WAP / Web Browser | n/a | Yes | Yes | Yes |
| Input | ||||
| Predictive Text Entry | n/a | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- | - | - |
| Memory | ||||
| Memory Card Slot | Yes | - | - | - |
| Messaging | ||||
| EMS / Picture Messaging | n/a | - | Yes | Yes |
| MMS | n/a | - | - | Yes |
| Text Messaging Templates | n/a | Yes | Yes | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | - | - | - |
| Power | ||||
| Fast Charging | Yes | - | - | - |
| Productivity | ||||
| Alarm | n/a | Yes | Yes | Yes |
| Calculator | n/a | Yes | Yes | Yes |
| Calendar | n/a | Yes | Yes | Yes |
| To-Do List | n/a | - | Yes | Yes |
| Voice Memo | n/a | Yes | - | Yes |
| Software | ||||
| Games | n/a | Yes | Yes | Yes |
| Java (J2ME) | n/a | - | - | Yes |
| Voice | ||||
| Headset Jack (2.5 mm) | n/a | - | - | Yes |
| Speaker Phone | Yes | Yes | - | Yes |
| ZTE Blade X Max | Ericsson R520 | Ericsson T66 | Samsung SGH-X640 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Blade X Max | Ericsson R520 | Ericsson T66 | Samsung SGH-X640 |
