Compare Phones
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| Phone | Apple iPhone 4 (GSM) | Cal-Comp EZ | Samsung Knack U310 | TCL A30 / A3 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
3.5" diag. 5 : 3 |
? |
2.2" diag. 4 : 3 |
5.5" diag. 18 : 9 |
| Display Resolution & Type |
640 x 960 pixels (~330 ppi) LCD (TFT/TFD) |
128 x 128 pixels LCD (STN) |
176 x 220 pixels (~128 ppi) LCD (TFT/TFD) |
720 x 1440 pixels (~293 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | ? | ? |
| Battery | ? | 800 mAh | 1,000 mAh | 3,000 mAh |
| Processor | Apple A4 | ? | ? | 2 GHz MediaTek Helio P22 (MT6762V) |
| RAM | ? | ? | ? | 3 GB |
| Storage | 32 GB * | ? raw hardware | ? raw hardware | 32 GB |
| Main Camera | 5 megapixel | - | - | 8 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 720p HD | - | - | 1080p HD |
| Front Camera | Yes | - | - | 5 megapixel |
| Weight |
4.8 oz (136g) |
2.47 oz (70g) |
3.63 oz (103g) |
6.03 oz (171g) |
| Dimensions |
4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm) |
4.04" x 1.71" x 0.63" (103 x 43 x 16 mm) |
3.78" x 2.01" x 0.74" (96 x 51 x 18.8 mm) |
5.74" x 2.8" x 0.39" (146 x 71 x 9.9 mm) |
| Form Factor | Slab | Slab | Clamshell | Slab |
| Platform / OS | iOS | (proprietary) | (proprietary) | Android |
| Network Bands |
WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
4G LTE: 2, 4, 5, 12, 13, 25, 26, 41, 66, 71 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSPA 7.2 | 1xRTT | - | LTE (Cat 4) |
| Features | ||||
| Flashlight | - | - | - | Yes |
| GPS / Location | n/a | Yes | Yes | n/a |
| Water-Resistant | - | - | - |
Yes IPX2 (drip) |
| Accessibility | ||||
| Adjustable Text Size | n/a | - | Yes | n/a |
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
- |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | Yes | Yes | n/a |
| TTY/TDD (Digital) | Yes | - | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | Yes | - |
| Connectivity | ||||
| Bluetooth | Yes | - | - | Yes |
| Mobile Hotspot | n/a | - | - | n/a |
| USB | Yes |
Yes Mini-USB |
- |
Yes Micro-USB |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- | - |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | n/a | - | - | n/a |
| Ringer ID | n/a | - | - | n/a |
| Voice Dialing | n/a | - | Yes | n/a |
| Customization | ||||
| Custom Graphics | n/a | - | - | n/a |
| Custom Ringtones | n/a | - | - | n/a |
| Real-Music Ringers | n/a | - | - | n/a |
| Data & Network | ||||
| Data Tethering | n/a | - | - | n/a |
| WAP / Web Browser | n/a | - | - | n/a |
| Input | ||||
| Predictive Text Entry | n/a | - | Yes | n/a |
| Side Keys | Yes | - | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- | - |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | - | - | Yes |
| Messaging | ||||
| Email Client | n/a | - | - | n/a |
| EMS / Picture Messaging | n/a | - | Yes | n/a |
| MMS | n/a | - | - | n/a |
| Text Messaging Templates | n/a | Yes | - | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | - | - | Yes |
| Music Player | n/a | - | - | n/a |
| Photo & Video | ||||
| TV Output | Yes | - | - | - |
| Productivity | ||||
| Alarm | n/a | Yes | Yes | n/a |
| Calculator | n/a | Yes | Yes | n/a |
| Calendar | n/a | Yes | Yes | n/a |
| To-Do List | n/a | Yes | - | n/a |
| Voice Memo | n/a | Yes * | - | n/a |
| Software | ||||
| Games | n/a | - | - | n/a |
| Voice | ||||
| HD Voice | - | - | - | Yes |
| Headset Jack (2.5 mm) | n/a | Yes | Yes | n/a |
| Speaker Phone | Yes | - | Yes | Yes |
| * Some versions only | ||||
| Apple iPhone 4 (GSM) | Cal-Comp EZ | Samsung Knack U310 | TCL A30 / A3 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Apple iPhone 4 (GSM) | Cal-Comp EZ | Samsung Knack U310 | TCL A30 / A3 |
