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| Phone | Apple iPhone 4 (CDMA) | Kyocera 2135 | AT&T Maestro 3 | Apple iPhone 6 Plus |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
3.5" diag. 5 : 3 |
? |
6.5" diag. 20 : 9 |
5.5" diag. 16 : 9 |
| Display Resolution & Type |
640 x 960 pixels (~330 ppi) LCD (TFT/TFD) |
? |
720 x 1600 pixels (~270 ppi) LCD (TFT/TFD) |
1080 x 1920 pixels (~401 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz | 60 Hz |
| Battery | ? | 925 mAh | 3,900 mAh | 2,915 mAh |
| Processor | ? | ? | 2 GHz MediaTek Helio A22 (MT6761) | Apple A8 |
| RAM | ? | ? | 3 GB | 1 GB |
| Storage | 8 GB * | ? raw hardware | 32 GB | 16 GB |
| Main Camera | 5 megapixel | - | 13 megapixel | 8 megapixel |
| Wide Camera | - | - | 5 megapixel | - |
| Tele Camera | - | - | - | - |
| Video Capture | 720p HD | - | 1080p HD | 1080p HD |
| Front Camera | Yes | - | 5 megapixel | 1 megapixel |
| Weight |
4.8 oz (136g) |
4.7 oz (133g) |
6.24 oz (177g) |
6.07 oz (172g) |
| Dimensions |
4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm) |
5.07" x 1.89" x 1.02" (129 x 48 x 25.9 mm) |
6.58" x 3.03" x 0.33" (167 x 77 x 8.4 mm) |
6.22" x 3.06" x 0.28" (158 x 78 x 7.1 mm) |
| Form Factor | Slab | Slab | Slab | Slab |
| Platform / OS | iOS | (proprietary) | Android | iOS |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 AMPS: 850 |
4G LTE: 2, 4, 5, 12, 14, 30 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 13, 17, 25, 26, 41 WCDMA: 1, 2, 4, 5, 8 CDMA: 850, 1700, 1900 GSM: 850, 900, 1800, 1900 |
| Data Technology | EVDO rA | - | LTE (Cat 4) | LTE (Cat 4) |
| Features | ||||
| Barometer | - | - | Yes | - |
| Fingerprint Reader | - | - |
Yes stand-alone |
Yes |
| Flashlight | - | - | Yes | - |
| GPS / Location | n/a | - | n/a | n/a |
| Accessibility | ||||
| Adjustable Text Size | n/a | - | n/a | n/a |
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
- |
Yes M4, T4 (very tele-coil compatible) |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | Yes |
| Mobile Hotspot | n/a | - | n/a | n/a |
| NFC | - | - | - | Yes |
| USB | Yes | - |
Yes USB Type C |
Yes |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- |
Yes 5 (802.11 a,ac,b,g,n) |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | ||||
| Picture ID | n/a | - | n/a | n/a |
| Ringer ID | n/a | - | n/a | n/a |
| Voice Dialing | n/a | - | n/a | n/a |
| Customization | ||||
| Changeable Body Plates | - | Yes | - | - |
| Custom Graphics | n/a | - | n/a | n/a |
| Custom Ringtones | n/a | Yes | n/a | n/a |
| Real-Music Ringers | n/a | - | 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 |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | n/a |
| Side Keys | Yes | - | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | - | - | Yes | - |
| Messaging | ||||
| Email Client | n/a | - | n/a | n/a |
| Instant Messaging | n/a | - | n/a | n/a |
| MMS | n/a | - | n/a | n/a |
| Text Messaging Templates | n/a | Yes | n/a | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | Yes | - | Yes | Yes |
| Music Player | n/a | - | n/a | n/a |
| Photo & Video | ||||
| TV Output | Yes | - | - | Yes |
| Video Calling | n/a | - | n/a | n/a |
| Productivity | ||||
| Alarm | n/a | Yes | n/a | n/a |
| Calculator | n/a | Yes | n/a | n/a |
| Calendar | n/a | - | n/a | n/a |
| To-Do List | n/a | - | n/a | n/a |
| Voice Memo | n/a | - | n/a | n/a |
| Software | ||||
| Games | n/a | Yes | n/a | n/a |
| Voice | ||||
| HD Voice | - | - | Yes | Yes |
| Headset Jack (2.5 mm) | n/a | Yes | n/a | n/a |
| Speaker Phone | Yes | - | Yes | Yes |
| Apple iPhone 4 (CDMA) | Kyocera 2135 | AT&T Maestro 3 | Apple iPhone 6 Plus | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Apple iPhone 4 (CDMA) | Kyocera 2135 | AT&T Maestro 3 | Apple iPhone 6 Plus |
