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| Phone | ZTE Prelude / Avail 2 | Nokia N90 | Siemens A56 / A56i | Asus ZenFone 4 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
3.5" diag. 5 : 3 |
? | ? |
5.5" diag. 16 : 9 |
| Display Resolution & Type |
320 x 480 pixels (~165 ppi) LCD (TFT/TFD) |
352 x 416 pixels LCD (TFT/TFD) |
101 x 64 pixels |
1080 x 1920 pixels (~401 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | ? | 60 Hz |
| Battery | 1,500 mAh | 760 mAh | 700 mAh | 3,300 mAh |
| Processor | 1 GHz Qualcomm Snapdragon MSM7225A | ? | ? | 2.2 GHz Qualcomm Snapdragon 630 |
| RAM | 512 MB | ? | ? | 4 GB |
| Storage | 4 GB | ? raw hardware | ? raw hardware | 64 GB |
| Main Camera | 2 megapixel | 2 megapixel | - | 12 megapixel |
| Wide Camera | - | - | - | Yes |
| Tele Camera | - | - | - | - |
| Video Capture | VGA (640 x 480) | CIF (352 x 288) | - | 4K UHD |
| Front Camera | - | - | - | 8 megapixel |
| Weight |
4.4 oz (125g) |
6.1 oz (173g) |
3 oz (85g) |
5.47 oz (155g) |
| Dimensions |
4.6" x 2.44" x 0.45" (117 x 62 x 11.4 mm) |
4.41" x 2.01" x 0.94" (112 x 51 x 23.9 mm) |
4" x 1.7" x 0.8" (102 x 43 x 20.3 mm) |
6.12" x 2.96" x 0.3" (155 x 75 x 7.7 mm) |
| Form Factor | Slab | Clamshell | Slab | Slab |
| Platform / OS | Android | S60 (Symbian) | (proprietary) | Android |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 1900 |
WCDMA: 1 GSM: 900, 1800, 1900 |
GSM: 850, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 28 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSPA 7.2 | EDGE | - | LTE (Cat 12) |
| Features | ||||
| Fingerprint Reader | - | - | - |
Yes stand-alone |
| Flashlight | - | - | - | Yes |
| GPS / Location | n/a | n/a | Yes | n/a |
| Accessibility | ||||
| Adjustable Text Size | n/a | n/a | - | n/a |
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
- | - |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | n/a | - | n/a |
| TTY/TDD (Digital) | Yes | - | Yes | - |
| Alerts | ||||
| Extra Display | - | Yes | - | - |
| Ringer Profiles | - | Yes | Yes | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | - | Yes |
| NFC | - | - | - | Yes |
| USB | Yes | Yes | - |
Yes USB Type C |
| Wi-Fi |
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 |
| Voice Dialing | n/a | n/a | - | n/a |
| Customization | ||||
| Changeable Body Plates | - | - | Yes | - |
| Custom Graphics | n/a | n/a | Yes | n/a |
| Custom Ringtones | n/a | n/a | Yes | n/a |
| Real-Music Ringers | n/a | n/a | - | n/a |
| Data & Network | ||||
| Data Tethering | n/a | n/a | - | n/a |
| Dual-SIM | - | - | - | Yes |
| 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 |
| Touch Screen |
Yes Capacitive |
- | - |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | Yes | - | Yes |
| Messaging | ||||
| Email Client | n/a | n/a | - | n/a |
| EMS / Picture Messaging | n/a | n/a | Yes | n/a |
| Instant Messaging | n/a | n/a | - | n/a |
| MMS | n/a | n/a | - | n/a |
| Text Messaging Templates | n/a | n/a | - | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | - | - | Yes |
| Music Player | n/a | n/a | - | n/a |
| Photo & Video | ||||
| Miracast | - | - | - | Yes |
| Video Calling | n/a | n/a | - | n/a |
| Power | ||||
| Fast Charging | - | - | - | Yes |
| Productivity | ||||
| Alarm | n/a | n/a | Yes | n/a |
| Calculator | n/a | n/a | Yes | n/a |
| Calendar | n/a | n/a | - | n/a |
| To-Do List | n/a | n/a | - | n/a |
| Voice Memo | n/a | n/a | - | n/a |
| Software | ||||
| Games | n/a | n/a | Yes | n/a |
| Java (J2ME) | n/a | n/a | - | n/a |
| Voice | ||||
| Push-To-Talk | - | Yes | - | - |
| Speaker Phone | Yes | Yes | - | Yes |
| ZTE Prelude / Avail 2 | Nokia N90 | Siemens A56 / A56i | Asus ZenFone 4 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Prelude / Avail 2 | Nokia N90 | Siemens A56 / A56i | Asus ZenFone 4 |
