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| Phone | ZTE Z998 / Unico LTE | Nokia E66 | Motorola i415 | Microsoft Lumia 550 | AT&T Calypso |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
4.5" diag. 16 : 9 |
2.4" diag. 4 : 3 |
? |
4.7" diag. 16 : 9 |
5.5" diag. 18 : 9 |
| Display Resolution & Type |
540 x 960 pixels (~245 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
130 x 130 pixels LCD (STN) |
720 x 1280 pixels (~312 ppi) LCD (TFT/TFD) |
480 x 960 pixels (~195 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | ? | ? | 60 Hz |
| Battery | 2,070 mAh | 1,000 mAh | ? | 2,100 mAh | 2,500 mAh |
| Processor | 1.2 GHz Qualcomm Snapdragon 400 MSM8930 | ? | ? | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | 1.5 GHz MediaTek MT6739 |
| RAM | 1 GB | ? | ? | 1 GB | 1 GB |
| Storage | 4 GB | ? raw hardware | ? raw hardware | 8 GB | 16 GB |
| Main Camera | 5 megapixel | 3 megapixel | - | 5 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | 720p HD | QVGA (320 x 240) | - | 720p HD | 1080p HD |
| Front Camera | 1 megapixel | - | - | 2 megapixel | 5 megapixel |
| Weight |
4.8 oz (136g) |
4.27 oz (121g) |
4.7 oz (133g) |
5.01 oz (142g) |
6 oz (170g) |
| Dimensions |
5.2" x 2.6" x 0.4" (132 x 66 x 10.2 mm) |
4.21" x 1.93" x 0.51" (107 x 49 x 13 mm) |
5.5" x 1.9" x 0.85" (140 x 48 x 21.6 mm) |
5.36" x 2.67" x 0.39" (136 x 68 x 9.9 mm) |
5.91" x 2.87" x 0.39" (150 x 73 x 9.9 mm) |
| Form Factor | Slab | Slide | Slab | Slab | Slab |
| Platform / OS | Android | S60 (Symbian) | (proprietary) | Windows | Android |
| Network Bands |
iDEN: 800 |
4G LTE: 2, 4, 5, 7, 12, 17 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 14, 30 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
||
| Data Technology | LTE (Cat 3) | HSDPA 3.6 | - | LTE (Cat 4) | LTE (Cat 4) |
| Features | |||||
| Flashlight | - | - | - | Yes | Yes |
| GPS / Location | n/a | n/a | Yes | n/a | n/a |
| Accessibility | |||||
| Adjustable Text Size | n/a | n/a | - | n/a | n/a |
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
- | - |
Yes M3, T4 (very tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | n/a | Yes | n/a | n/a |
| TTY/TDD (Digital) | Yes | - | Yes | Yes | Yes |
| Alerts | |||||
| Ringer Profiles | - | Yes | Yes | - | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | - | Yes | Yes |
| Infrared (IR) | - | Yes | - | - | - |
| Mobile Hotspot | n/a | n/a | - | n/a | n/a |
| USB |
Yes Micro-USB |
Yes Micro-USB |
Yes |
Yes Micro-USB |
Yes USB Type C |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
Yes 802.11 b,g |
- |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
| Contacts | |||||
| Picture ID | n/a | n/a | Yes | n/a | n/a |
| Ringer ID | n/a | n/a | Yes | n/a | n/a |
| Voice Dialing | n/a | n/a | Yes | n/a | n/a |
| Customization | |||||
| Custom Graphics | n/a | n/a | Yes | n/a | n/a |
| Custom Ringtones | n/a | n/a | Yes | n/a | n/a |
| Real-Music Ringers | n/a | n/a | Yes | n/a | n/a |
| Data & Network | |||||
| Data Tethering | n/a | n/a | Yes | n/a | n/a |
| WAP / Web Browser | n/a | n/a | Yes | n/a | n/a |
| Input | |||||
| Predictive Text Entry | n/a | n/a | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- | - |
Yes Capacitive |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | Yes | Yes | - | Yes | Yes |
| Messaging | |||||
| Email Client | n/a | n/a | - | n/a | n/a |
| Instant Messaging | n/a | n/a | - | n/a | n/a |
| MMS | n/a | n/a | Yes | n/a | n/a |
| Text Messaging Templates | n/a | n/a | Yes | n/a | n/a |
| Music | |||||
| FM Radio | - | Yes | - | Yes | - |
| Headphone Jack (3.5mm) | Yes | - | - | Yes | Yes |
| Music Player | n/a | n/a | - | n/a | n/a |
| Photo & Video | |||||
| Video Calling | n/a | n/a | - | n/a | n/a |
| Productivity | |||||
| Alarm | n/a | n/a | - | n/a | n/a |
| Calculator | n/a | n/a | - | n/a | n/a |
| Calendar | n/a | n/a | Yes | n/a | n/a |
| To-Do List | n/a | n/a | - | n/a | n/a |
| Voice Memo | n/a | n/a | Yes | n/a | n/a |
| Software | |||||
| Games | n/a | n/a | Yes | n/a | n/a |
| Java (J2ME) | n/a | n/a | Yes | n/a | n/a |
| Voice | |||||
| HD Voice | - | - | - | Yes | Yes |
| Headset Jack (2.5 mm) | n/a | n/a | Yes | n/a | n/a |
| Push-To-Talk | - | - | Yes | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| ZTE Z998 / Unico LTE | Nokia E66 | Motorola i415 | Microsoft Lumia 550 | AT&T Calypso | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z998 / Unico LTE | Nokia E66 | Motorola i415 | Microsoft Lumia 550 | AT&T Calypso |
