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| Phone | Apple iPhone 4 (GSM) | Samsung Droid Charge | Motorola One Zoom | Siemens SL55 | Samsung Glyde U940 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
3.5" diag. 5 : 3 |
4.3" diag. 5 : 3 |
6.4" diag. 19.5 : 9 |
? |
2.8" diag. 16.5 : 9 |
| Display Resolution & Type |
640 x 960 pixels (~330 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~217 ppi) AMOLED |
1080 x 2340 pixels (~403 ppi) AMOLED |
101 x 80 pixels LCD (STN) |
240 x 440 pixels (~182 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | 60 Hz | 60 Hz | ? | ? |
| Battery | ? | 1,500 mAh | 4,000 mAh | 500 mAh | 1,000 mAh |
| Processor | Apple A4 | 1 GHz Samsung Hummingbird | Qualcomm Snapdragon 675 | ? | ? |
| RAM | ? | ? | 4 GB | ? | ? |
| Storage | 32 GB * | ? raw hardware | 128 GB | ? raw hardware | ? raw hardware |
| Main Camera | 5 megapixel | 8 megapixel | 12 megapixel | - | 2 megapixel |
| Wide Camera | - | - | 16 megapixel | - | - |
| Tele Camera | - | - | 8 megapixel | - | - |
| Video Capture | 720p HD | 720p HD | 4K UHD | - | QVGA (320 x 240) |
| Front Camera | Yes | 1 megapixel | 25 megapixel | - | - |
| Weight |
4.8 oz (136g) |
5.06 oz (144g) |
6.7 oz (190g) |
2.79 oz (79g) |
4.2 oz (119g) |
| Dimensions |
4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm) |
5.1" x 2.68" x 0.46" (130 x 68 x 11.7 mm) |
6.22" x 2.95" x 0.35" (158 x 75 x 8.8 mm) |
3.21" x 1.75" x 0.86" (82 x 44 x 21.8 mm) |
4.09" x 1.98" x 0.71" (104 x 50 x 18 mm) |
| Form Factor | Slab | Slab | Slab | Slide | Slide |
| Platform / OS | iOS | Android | Android | (proprietary) | (proprietary) |
| Network Bands |
WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
4G LTE: 13 CDMA: 850, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 20, 28, 38, 40, 41, 66 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | HSPA 7.2 | LTE (Cat 3) | LTE (Cat 12) | GPRS | EVDO r0 |
| Features | |||||
| Fingerprint Reader | - | - |
Yes in-display (optical) |
- | - |
| Flashlight | - | - | Yes | - | - |
| GPS / Location | n/a | n/a | n/a | - | Yes |
| Water-Resistant | - | - | Yes | - | - |
| Accessibility | |||||
| Adjustable Text Size | n/a | n/a | n/a | - | - |
| Hearing Aid Compatible | Yes | Yes | Yes | - | Yes |
| Multiple Languages | n/a | n/a | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | - | Yes |
| Alerts | |||||
| Ringer Profiles | - | - | - | Yes | - |
| Connectivity | |||||
| Bluetooth |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
- |
Yes Classic Audio |
| Infrared (IR) | - | - | - | Yes | - |
| Mobile Hotspot | n/a | n/a | n/a | - | - |
| NFC | - | - | Yes | - | - |
| 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) |
Yes 5 (802.11 a,ac,b,g,n) |
- | - |
| Contacts | |||||
| Picture ID | n/a | n/a | n/a | Yes | Yes |
| Ringer ID | n/a | n/a | n/a | Yes | Yes |
| Voice Dialing | n/a | n/a | n/a | Yes | Yes |
| Customization | |||||
| Custom Graphics | n/a | n/a | n/a | Yes | Yes |
| Custom Ringtones | n/a | n/a | n/a | Yes | Yes |
| Real-Music Ringers | n/a | n/a | n/a | - | Yes |
| Data & Network | |||||
| Data Tethering | n/a | n/a | n/a | Yes | Yes |
| Dual-SIM | - | - | Yes | - | - |
| WAP / Web Browser | n/a | n/a | n/a | Yes | Yes |
| Input | |||||
| Predictive Text Entry | n/a | n/a | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | - | Yes |
| Touch Screen | Yes | Yes | Yes | - | Yes |
| Memory | |||||
| Memory Card Slot | - | Yes | Yes | - | Yes |
| Messaging | |||||
| Email Client | n/a | n/a | n/a | Yes | - |
| EMS / Picture Messaging | n/a | n/a | n/a | Yes | - |
| Instant Messaging | n/a | n/a | n/a | - | - |
| MMS | n/a | n/a | n/a | Yes | Yes |
| Text Messaging Templates | n/a | n/a | n/a | Yes | Yes |
| Music | |||||
| FM Radio | - | - | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | Yes | Yes | - | - |
| Music Player | n/a | n/a | n/a | - | Yes |
| Photo & Video | |||||
| DLNA | - | Yes | - | - | - |
| TV Output | Yes | Yes | - | - | - |
| Video Calling | n/a | n/a | n/a | - | - |
| Power | |||||
| Fast Charging | - | - | Yes | - | - |
| Productivity | |||||
| Alarm | n/a | n/a | n/a | Yes | Yes |
| Calculator | n/a | n/a | n/a | Yes | Yes |
| Calendar | n/a | n/a | n/a | Yes | Yes |
| To-Do List | n/a | n/a | n/a | Yes | - |
| Voice Memo | n/a | n/a | n/a | Yes | - |
| Software | |||||
| BREW | n/a | n/a | n/a | - | Yes |
| Games | n/a | n/a | n/a | Yes | Yes |
| Java (J2ME) | n/a | n/a | n/a | Yes | - |
| Voice | |||||
| HD Voice | - | - | Yes | - | - |
| Headset Jack (2.5 mm) | n/a | n/a | n/a | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Apple iPhone 4 (GSM) | Samsung Droid Charge | Motorola One Zoom | Siemens SL55 | Samsung Glyde U940 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Apple iPhone 4 (GSM) | Samsung Droid Charge | Motorola One Zoom | Siemens SL55 | Samsung Glyde U940 |
