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| Phone | ZTE Z998 / Unico LTE | Sony Ericsson K850 | Siemens SL65 | HTC EVO 4G | Ericsson R278d |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
4.5" diag. 16 : 9 |
2.2" diag. 4 : 3 |
? |
4.3" diag. 5 : 3 |
? |
| Display Resolution & Type |
540 x 960 pixels (~245 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
130 x 130 pixels LCD (TFT/TFD) |
480 x 800 pixels (~217 ppi) LCD (TFT/TFD) |
101 x 40 pixels |
| Display Refresh | 60 Hz | ? | ? | 60 Hz | ? |
| Battery | 2,070 mAh | ? | 700 mAh | 1,500 mAh | ? |
| Processor | 1.2 GHz Qualcomm Snapdragon 400 MSM8930 | ? | ? | 1 GHz Qualcomm Snapdragon S1 QSD8650 | ? |
| RAM | 1 GB | ? | ? | ? | ? |
| Storage | 4 GB | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 5 megapixel | 5 megapixel | - | 8 megapixel | - |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | 720p HD | ? | ? | 720p HD | - |
| Front Camera | 1 megapixel | - | - | Yes | - |
| Weight |
4.8 oz (136g) |
4.2 oz (119g) |
3.49 oz (99g) |
6 oz (170g) |
9.28 oz (263g) |
| Dimensions |
5.2" x 2.6" x 0.4" (132 x 66 x 10.2 mm) |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
3.55" x 1.87" x 0.82" (90 x 47 x 20.8 mm) |
4.8" x 2.6" x 0.5" (122 x 66 x 12.7 mm) |
5.1" x 2" x 1" (130 x 51 x 25.4 mm) |
| Form Factor | Slab | Slab | Slide | Slab | Slab |
| Platform / OS | Android | (proprietary) | (proprietary) | Android | (proprietary) |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
4G WiMAX: 41 CDMA: 850, 1900 |
TDMA: 850, 1900 AMPS: 850 |
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| Data Technology | LTE (Cat 3) | HSDPA 3.6 | GPRS | WiMAX | - |
| Features | |||||
| GPS / Location | n/a | - | - | n/a | - |
| Accessibility | |||||
| Adjustable Text Size | n/a | - | - | n/a | - |
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
- | - | Yes | - |
| Multiple Languages | n/a | Yes | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | - | Yes | - |
| Alerts | |||||
| Ringer Profiles | - | Yes | Yes | - | Yes |
| Connectivity | |||||
| Bluetooth | Yes | Yes | - | Yes | - |
| Infrared (IR) | - | - | Yes | - | - |
| Mobile Hotspot | n/a | - | - | n/a | - |
| USB |
Yes Micro-USB |
Yes | Yes | Yes | - |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- | - |
Yes 802.11 b,g |
- |
| Contacts | |||||
| Picture ID | n/a | Yes | Yes | n/a | - |
| Ringer ID | n/a | Yes | Yes | n/a | - |
| Voice Dialing | n/a | Yes | - | n/a | - |
| Customization | |||||
| Custom Graphics | n/a | Yes | Yes | n/a | - |
| Custom Ringtones | n/a | Yes | Yes | n/a | Yes |
| Real-Music Ringers | n/a | Yes | - | n/a | - |
| Data & Network | |||||
| Data Tethering | n/a | Yes | Yes | n/a | Yes |
| WAP / Web Browser | n/a | Yes | Yes | n/a | Yes |
| Input | |||||
| Predictive Text Entry | n/a | Yes | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- | - |
Yes Capacitive |
- |
| Memory | |||||
| Memory Card Slot | Yes | Yes | - | Yes | - |
| Messaging | |||||
| Email Client | n/a | Yes | Yes | n/a | - |
| EMS / Picture Messaging | n/a | - | Yes | n/a | - |
| Instant Messaging | n/a | - | - | n/a | - |
| MMS | n/a | Yes | Yes | n/a | - |
| Text Messaging Templates | n/a | Yes | Yes | n/a | - |
| Music | |||||
| FM Radio | - | Yes | - | Yes | - |
| Headphone Jack (3.5mm) | Yes | - | - | Yes | - |
| Music Player | n/a | Yes | - | n/a | - |
| Photo & Video | |||||
| TV Output | - | - | - | Yes | - |
| Video Calling | n/a | Yes * | - | n/a | - |
| Productivity | |||||
| Alarm | n/a | Yes | Yes | n/a | Yes |
| Calculator | n/a | Yes | Yes | n/a | - |
| Calendar | n/a | Yes | Yes | n/a | - |
| To-Do List | n/a | Yes | Yes | n/a | - |
| Voice Memo | n/a | Yes | Yes | n/a | - |
| Software | |||||
| Games | n/a | Yes | Yes | n/a | - |
| Java (J2ME) | n/a | Yes | Yes | n/a | - |
| Voice | |||||
| Speaker Phone | Yes | Yes | Yes | Yes | - |
| * Some versions only | |||||
| ZTE Z998 / Unico LTE | Sony Ericsson K850 | Siemens SL65 | HTC EVO 4G | Ericsson R278d | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | ZTE Z998 / Unico LTE | Sony Ericsson K850 | Siemens SL65 | HTC EVO 4G | Ericsson R278d |
