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| Phone | Samsung Galaxy S II Skyrocket | Samsung SCH-A990 | ZTE Tempo | ZTE Blade Z Max | Samsung Messager R450 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
4.5" diag. 5 : 3 |
? |
4.5" diag. 16 : 9 |
6" diag. 16 : 9 |
2.1" diag. 4 : 3 |
| Display Resolution & Type |
480 x 800 pixels (~207 ppi) AMOLED |
240 x 320 pixels LCD (TFT/TFD) |
480 x 854 pixels (~218 ppi) LCD (TFT/TFD) |
1080 x 1920 pixels (~367 ppi) LCD (TFT/TFD) |
176 x 220 pixels (~134 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz | 60 Hz | ? |
| Battery | 1,850 mAh | 1,000 mAh | 2,200 mAh | 4,080 mAh | 960 mAh |
| Processor | 1.5 GHz Qualcomm Snapdragon S3 APQ8060 | ? | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | 1.4 GHz Qualcomm Snapdragon 435 (MSM8940) | ? |
| RAM | 1 GB | ? | 1 GB | 2 GB | ? |
| Storage | 16 GB | ? raw hardware | 8 GB | 32 GB | ? raw hardware |
| Main Camera | 8 megapixel | 3 megapixel | 5 megapixel | 16 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | 1080p HD | ? | 720p HD | 1080p HD | - |
| Front Camera | 2 megapixel | - | 2 megapixel | 8 megapixel | - |
| Weight |
4.71 oz (133g) |
4.4 oz (125g) |
4.8 oz (136g) |
6.58 oz (186g) |
4.58 oz (130g) |
| Dimensions |
5.12" x 2.72" x 0.35" (130 x 69 x 9 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
5.35" x 2.67" x 0.4" (136 x 68 x 10.2 mm) |
6.51" x 3.28" x 0.33" (165 x 83 x 8.3 mm) |
4.4" x 2" x 0.7" (112 x 51 x 17.8 mm) |
| Form Factor | Slab | Clamshell | Slab | Slab | Slab |
| Platform / OS | Android | (proprietary) | Android | Android | (proprietary) |
| Network Bands |
4G LTE: 4, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
4G LTE: 2, 4, 5, 12, 25, 26, 41 WCDMA: 2, 4, 5 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12, 66 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1700, 1900 |
| Data Technology | LTE (Cat 3) | EVDO r0 | LTE (Cat 4) | LTE (Cat 6) | 1xRTT |
| Features | |||||
| Fingerprint Reader | - | - | - |
Yes stand-alone |
- |
| Flashlight | - | Yes | Yes | Yes | - |
| GPS / Location | n/a | Yes | n/a | n/a | Yes |
| Accessibility | |||||
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
Yes M3 (mostly compatible) |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
| Multiple Languages | n/a | Yes | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Extra Display | - | Yes | - | - | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | Yes | Yes |
| Mobile Hotspot | n/a | - | n/a | n/a | - |
| NFC | Yes | - | - | - | - |
| USB |
Yes Micro-USB |
Yes |
Yes Micro-USB |
Yes USB Type C |
Yes |
| Wi-Fi |
Yes 4 (802.11 a,b,g,n) |
- |
Yes 4 (802.11 b,g,n) |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | |||||
| Picture ID | n/a | Yes | n/a | n/a | Yes |
| Ringer ID | n/a | Yes | n/a | n/a | Yes |
| Voice Dialing | n/a | Yes | n/a | n/a | Yes |
| Customization | |||||
| Custom Graphics | n/a | Yes | n/a | n/a | Yes |
| Custom Ringtones | n/a | Yes | n/a | n/a | Yes |
| Real-Music Ringers | n/a | Yes | n/a | n/a | - |
| Data & Network | |||||
| Data Tethering | n/a | Yes | n/a | n/a | - |
| WAP / Web Browser | n/a | Yes | n/a | n/a | Yes |
| Input | |||||
| Predictive Text Entry | n/a | Yes | n/a | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | - | Yes |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
Yes Capacitive |
- |
| Memory | |||||
| Memory Card Slot | Yes | Yes | Yes | Yes | Yes |
| Messaging | |||||
| Email Client | n/a | - | n/a | n/a | - |
| EMS / Picture Messaging | n/a | Yes | n/a | n/a | - |
| Instant Messaging | n/a | - | n/a | n/a | - |
| MMS | n/a | Yes | n/a | n/a | Yes |
| Text Messaging Templates | n/a | Yes | n/a | n/a | Yes |
| Music | |||||
| FM Radio | - | - | Yes | Yes | - |
| Headphone Jack (3.5mm) | Yes | - | Yes | Yes | - |
| Music Player | n/a | Yes | n/a | n/a | Yes |
| Stereo Speakers | - | Yes | - | - | - |
| Photo & Video | |||||
| DLNA | Yes | - | - | - | - |
| TV Output | Yes | Yes | - | - | - |
| Power | |||||
| Fast Charging | - | - | - | Yes | - |
| Productivity | |||||
| Alarm | n/a | Yes | n/a | n/a | Yes |
| Calculator | n/a | Yes | n/a | n/a | Yes |
| Calendar | n/a | Yes | n/a | n/a | Yes |
| To-Do List | n/a | - | n/a | n/a | - |
| Voice Memo | n/a | Yes | n/a | n/a | Yes |
| Software | |||||
| BREW | n/a | Yes | n/a | n/a | Yes |
| Games | n/a | Yes | n/a | n/a | Yes |
| Voice | |||||
| HD Voice | - | - | Yes | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| Samsung Galaxy S II Skyrocket | Samsung SCH-A990 | ZTE Tempo | ZTE Blade Z Max | Samsung Messager R450 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung Galaxy S II Skyrocket | Samsung SCH-A990 | ZTE Tempo | ZTE Blade Z Max | Samsung Messager R450 |
