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| Phone | Samsung SCH-A990 | ZTE Savvy | ZTE ZMAX Pro | Samsung SGH-A657 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
4" diag. 5 : 3 |
6" diag. 16 : 9 |
? |
| Display Resolution & Type |
240 x 320 pixels LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | 60 Hz | ? |
| Battery | 1,000 mAh | 1,650 mAh | 3,400 mAh | 1,420 mAh |
| Processor | ? | 1 GHz Qualcomm MSM8625 | 1.5 GHz Qualcomm Snapdragon 617 (MSM8952) | ? |
| RAM | ? | 768 MB | 2 GB | ? |
| Storage | ? raw hardware | 4 GB | 32 GB | ? raw hardware |
| Main Camera | 3 megapixel | 5 megapixel | 13 megapixel | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | WVGA / 480p | 1080p HD | - |
| Front Camera | - | - | 5 megapixel | - |
| Weight |
4.4 oz (125g) |
4.43 oz (126g) |
6.17 oz (175g) |
4.34 oz (123g) |
| Dimensions |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
4.96" x 2.55" x 0.42" (126 x 65 x 10.7 mm) |
6.5" x 3.3" x 0.35" (165 x 84 x 8.9 mm) |
4.53" x 2.05" x 0.77" (115 x 52 x 19.6 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Android | Android | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
4G LTE: 2, 4, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | EVDO r0 | EVDO rA | LTE (Cat 4) | HSDPA 3.6 |
| Features | ||||
| Fingerprint Reader | - | - | Yes | - |
| Flashlight | Yes | Yes | Yes | Yes |
| GPS / Location | Yes | n/a | n/a | Yes |
| Ruggedized | - | - | - | Yes |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | n/a | - |
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
- |
| Multiple Languages | Yes | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | n/a | - |
| USB | Yes |
Yes Micro-USB |
Yes USB Type C |
Yes |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | ||||
| Picture ID | Yes | n/a | n/a | Yes |
| Ringer ID | Yes | n/a | n/a | Yes |
| Voice Dialing | Yes | n/a | n/a | - |
| Customization | ||||
| Custom Graphics | Yes | n/a | n/a | Yes |
| Custom Ringtones | Yes | n/a | n/a | Yes |
| Real-Music Ringers | Yes | n/a | n/a | Yes |
| Data & Network | ||||
| Data Tethering | Yes | n/a | n/a | Yes |
| WAP / Web Browser | Yes | n/a | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen | - |
Yes Capacitive |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | - | n/a | n/a | Yes |
| EMS / Picture Messaging | Yes | n/a | n/a | - |
| Instant Messaging | - | n/a | n/a | Yes |
| MMS | Yes | n/a | n/a | Yes |
| Text Messaging Templates | Yes | n/a | n/a | Yes |
| Music | ||||
| FM Radio | - | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | Yes | - |
| Music Player | Yes | n/a | n/a | Yes |
| Stereo Speakers | Yes | - | - | - |
| Photo & Video | ||||
| DLNA | - | Yes | - | - |
| Miracast | - | - | Yes | - |
| TV Output | Yes | - | - | - |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | Yes |
| Calculator | Yes | n/a | n/a | Yes |
| Calendar | Yes | n/a | n/a | Yes |
| To-Do List | - | n/a | n/a | Yes |
| Voice Memo | Yes | n/a | n/a | Yes |
| Software | ||||
| BREW | Yes | n/a | n/a | - |
| Games | Yes | n/a | n/a | Yes |
| Java (J2ME) | - | n/a | n/a | Yes |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Push-To-Talk | - | - | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung SCH-A990 | ZTE Savvy | ZTE ZMAX Pro | Samsung SGH-A657 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-A990 | ZTE Savvy | ZTE ZMAX Pro | Samsung SGH-A657 |
