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| Phone | Asus ZenFone 4 | Ericsson R520 | Samsung SCH-A610 | Palm Treo 600 (CDMA) |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
5.5" diag. 16 : 9 |
? | ? | ? |
| Display Resolution & Type |
1080 x 1920 pixels (~401 ppi) LCD (TFT/TFD) |
? |
128 x 160 pixels LCD (TFT/TFD) |
160 x 160 pixels LCD (Color) |
| Display Refresh | 60 Hz | ? | ? | ? |
| Battery | 3,300 mAh | ? | 1,300 mAh | ? |
| Processor | 2.2 GHz Qualcomm Snapdragon 630 | ? | ? | ? |
| RAM | 4 GB | ? | ? | ? |
| Storage | 64 GB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 12 megapixel | - | Yes | Yes |
| Wide Camera | Yes | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 4K UHD | - | - | - |
| Front Camera | 8 megapixel | - | - | - |
| Weight |
5.47 oz (155g) |
4.23 oz (120g) |
4.23 oz (120g) |
6.2 oz (176g) |
| Dimensions |
6.12" x 2.96" x 0.3" (155 x 75 x 7.7 mm) |
5.12" x 1.97" x 0.63" (130 x 50 x 16 mm) |
3.5" x 1.9" x 0.9" (89 x 48 x 22.9 mm) |
4.41" x 2.36" x 0.87" (112 x 60 x 22.1 mm) |
| Form Factor | Slab | Slab | Clamshell | Slab |
| Platform / OS | Android | (proprietary) | (proprietary) | Palm OS |
| Network Bands |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 28 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
| Data Technology | LTE (Cat 12) | GPRS | 1xRTT | 1xRTT |
| Features | ||||
| Fingerprint Reader |
Yes stand-alone |
- | - | - |
| Flashlight | Yes | - | - | - |
| GPS / Location | n/a | - | Yes | n/a |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M4, T3 (mostly tele-coil compatible) |
- | - | - |
| Multiple Languages | n/a | Yes | Yes | n/a |
| TTY/TDD (Digital) | - | - | - | Yes |
| Alerts | ||||
| Ringer Profiles | - | Yes | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | - | - |
| Infrared (IR) | - | Yes | - | Yes |
| NFC | Yes | - | - | - |
| USB |
Yes USB Type C |
- | - | Yes |
| Wi-Fi |
Yes 5 (802.11 a,ac,b,g,n) |
- | - | - |
| Contacts | ||||
| Picture ID | n/a | - | Yes | n/a |
| Ringer ID | n/a | - | Yes | n/a |
| Voice Dialing | n/a | Yes | Yes | n/a |
| Customization | ||||
| Custom Graphics | n/a | - | Yes | n/a |
| Custom Ringtones | n/a | Yes | Yes | n/a |
| Data & Network | ||||
| Data Tethering | n/a | Yes | Yes | n/a |
| Dual-SIM | Yes | - | - | - |
| WAP / Web Browser | n/a | Yes | Yes | n/a |
| Input | ||||
| Predictive Text Entry | n/a | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen |
Yes Capacitive |
- | - | Yes |
| Memory | ||||
| Memory Card Slot | Yes | - | - | Yes |
| Messaging | ||||
| Email Client | n/a | - | - | n/a |
| EMS / Picture Messaging | n/a | - | Yes | n/a |
| MMS | n/a | - | Yes | n/a |
| Text Messaging Templates | n/a | Yes | Yes | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | - | - | - |
| Photo & Video | ||||
| Miracast | Yes | - | - | - |
| Power | ||||
| Fast Charging | Yes | - | - | - |
| Productivity | ||||
| Alarm | n/a | Yes | Yes | n/a |
| Calculator | n/a | Yes | Yes | n/a |
| Calendar | n/a | Yes | Yes | n/a |
| To-Do List | n/a | - | Yes | n/a |
| Voice Memo | n/a | Yes | Yes | n/a |
| Software | ||||
| BREW | n/a | - | Yes | n/a |
| Games | n/a | Yes | Yes | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | n/a | - | Yes | n/a |
| Speaker Phone | Yes | Yes | - | Yes |
| Asus ZenFone 4 | Ericsson R520 | Samsung SCH-A610 | Palm Treo 600 (CDMA) | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Asus ZenFone 4 | Ericsson R520 | Samsung SCH-A610 | Palm Treo 600 (CDMA) |
