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| Phone | Amazon Fire | Ericsson T28 World | Samsung Galaxy Core Prime (GSM) | ZTE Z221 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
4.7" diag. 16 : 9 |
? |
4.5" diag. 5 : 3 |
2" diag. 4 : 3 |
| Display Resolution & Type |
720 x 1280 pixels (~312 ppi) LCD (TFT/TFD) |
? |
480 x 800 pixels (~207 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | 2,400 mAh | 500 mAh | 2,000 mAh | 900 mAh |
| Processor | 2.2 GHz Qualcomm Snapdragon 800 | ? | 1.2 GHz Qualcomm Snapdragon 410 MSM8916 | ? |
| RAM | 2 GB | ? | 1 GB | ? |
| Storage | 32 GB * | ? raw hardware | 8 GB | 142 MB |
| Main Camera | 13 megapixel | - | 5 megapixel | Yes |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 1080p HD | - | 720p HD | QCIF (176 x 144) |
| Front Camera | 2 megapixel | - | 2 megapixel | - |
| Weight |
5.64 oz (160g) |
3.14 oz (89g) |
4.27 oz (121g) |
3.24 oz (92g) |
| Dimensions |
5.5" x 2.6" x 0.35" (140 x 66 x 8.9 mm) |
3.9" x 2" x 0.6" (99 x 51 x 15.2 mm) |
5.16" x 2.68" x 0.35" (131 x 68 x 8.9 mm) |
3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm) |
| Form Factor | Slab | Flip | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | Android | (proprietary) |
| Network Bands |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 17 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1900 |
4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | LTE (Cat 4) | - | LTE (Cat 3) | HSDPA 3.6 |
| Features | ||||
| Flashlight | Yes | - | Yes | - |
| GPS / Location | Yes | - | n/a | Yes |
| Accessibility | ||||
| Adjustable Text Size | - | - | n/a | - |
| Hearing Aid Compatible | Yes | - | Yes | Yes |
| Multiple Languages | Yes | - | n/a | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | - | Yes |
| Ringer Profiles | - | Yes | - | Yes |
| Connectivity | ||||
| Bluetooth |
Yes Classic Audio |
- |
Yes Classic Audio |
Yes Classic Audio |
| Mobile Hotspot | Yes | - | n/a | - |
| NFC | Yes | - | - | - |
| USB |
Yes Micro-USB |
- |
Yes Micro-USB |
Yes |
| Wi-Fi |
Yes 5 (802.11 a,ac,b,g,n) |
- |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | ||||
| Picture ID | Yes | - | n/a | - |
| Ringer ID | Yes | - | n/a | - |
| Voice Dialing | Yes | Yes | n/a | - |
| Customization | ||||
| Custom Graphics | - | - | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | Yes |
| Real-Music Ringers | - | - | n/a | Yes |
| Data & Network | ||||
| Data Tethering | Yes | Yes | n/a | - |
| WAP / Web Browser | Yes | - | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | - | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | Yes | - | Yes | - |
| Memory | ||||
| Memory Card Slot | - | - | Yes | - |
| Messaging | ||||
| Email Client | Yes | - | n/a | Yes |
| Instant Messaging | - | - | n/a | Yes |
| MMS | Yes | - | n/a | Yes |
| Text Messaging Templates | Yes | - | n/a | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | - | Yes | - |
| Music Player | Yes | - | n/a | - |
| Stereo Speakers | Yes | - | - | - |
| Photo & Video | ||||
| Miracast | Yes | - | - | - |
| TV Output | Yes | - | - | - |
| Power | ||||
| Fast Charging | - | - | Yes | - |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | Yes |
| Calculator | Yes | Yes | n/a | Yes |
| Calendar | Yes | - | n/a | Yes |
| Voice Memo | Yes | - | n/a | Yes |
| Software | ||||
| Games | Yes | Yes | n/a | Yes |
| Java (J2ME) | - | - | n/a | Yes |
| Voice | ||||
| HD Voice | Yes | - | Yes | - |
| Speaker Phone | Yes | - | Yes | Yes |
| Amazon Fire | Ericsson T28 World | Samsung Galaxy Core Prime (GSM) | ZTE Z221 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Amazon Fire | Ericsson T28 World | Samsung Galaxy Core Prime (GSM) | ZTE Z221 |
