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| Phone | AT&T Maestro 3 | Ericsson R520 | Apple iPhone 4 (GSM) | HTC SPV e100 / 7070 (Tanager) | Asus ZenFone 4 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
6.5" diag. 20 : 9 |
? |
3.5" diag. 5 : 3 |
? |
5.5" diag. 16 : 9 |
| Display Resolution & Type |
720 x 1600 pixels (~270 ppi) LCD (TFT/TFD) |
? |
640 x 960 pixels (~330 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
1080 x 1920 pixels (~401 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz | ? | 60 Hz |
| Battery | 3,900 mAh | ? | ? | 1,000 mAh | 3,300 mAh |
| Processor | 2 GHz MediaTek Helio A22 (MT6761) | ? | Apple A4 | 120 MHz OMAP | 2.2 GHz Qualcomm Snapdragon 630 |
| RAM | 3 GB | ? | ? | ? | 4 GB |
| Storage | 32 GB | ? raw hardware | 32 GB * | ? raw hardware | 64 GB |
| Main Camera | 13 megapixel | - | 5 megapixel | - | 12 megapixel |
| Wide Camera | 5 megapixel | - | - | - | Yes |
| Tele Camera | - | - | - | - | - |
| Video Capture | 1080p HD | - | 720p HD | - | 4K UHD |
| Front Camera | 5 megapixel | - | Yes | - | 8 megapixel |
| Weight |
6.24 oz (177g) |
4.23 oz (120g) |
4.8 oz (136g) |
4.23 oz (120g) |
5.47 oz (155g) |
| Dimensions |
6.58" x 3.03" x 0.33" (167 x 77 x 8.4 mm) |
5.12" x 1.97" x 0.63" (130 x 50 x 16 mm) |
4.5" x 2.31" x 0.37" (114 x 59 x 9.4 mm) |
4.72" x 1.97" x 0.91" (120 x 50 x 23.1 mm) |
6.12" x 2.96" x 0.3" (155 x 75 x 7.7 mm) |
| Form Factor | Slab | Slab | Slab | Slab | Slab |
| Platform / OS | Android | (proprietary) | iOS | Windows Mobile Standard | Android |
| Network Bands |
4G LTE: 2, 4, 5, 12, 14, 30 |
GSM: 900, 1800, 1900 |
WCDMA: 1, 2, 5, 8 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 28 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
| Data Technology | LTE (Cat 4) | GPRS | HSPA 7.2 | GPRS | LTE (Cat 12) |
| Features | |||||
| Barometer | Yes | - | - | - | - |
| Fingerprint Reader |
Yes stand-alone |
- | - | - |
Yes stand-alone |
| Flashlight | Yes | - | - | - | Yes |
| GPS / Location | n/a | - | n/a | n/a | n/a |
| Accessibility | |||||
| Adjustable Text Size | n/a | - | n/a | n/a | n/a |
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
- |
Yes M3, T3 (mostly tele-coil compatible) |
- |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | Yes | n/a | n/a | n/a |
| TTY/TDD (Digital) | - | - | Yes | - | - |
| Alerts | |||||
| Ringer Profiles | - | Yes | - | Yes | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | - | Yes |
| Infrared (IR) | - | Yes | - | Yes | - |
| Mobile Hotspot | n/a | - | n/a | n/a | n/a |
| NFC | - | - | - | - | Yes |
| USB |
Yes USB Type C |
- | Yes | Yes |
Yes USB Type C |
| Wi-Fi |
Yes 5 (802.11 a,ac,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 | n/a |
| Ringer ID | n/a | - | n/a | n/a | n/a |
| Voice Dialing | n/a | Yes | n/a | n/a | n/a |
| Customization | |||||
| Custom Graphics | n/a | - | n/a | n/a | n/a |
| Custom Ringtones | n/a | Yes | n/a | n/a | n/a |
| Real-Music Ringers | n/a | - | n/a | n/a | n/a |
| Data & Network | |||||
| Data Tethering | n/a | Yes | n/a | n/a | n/a |
| Dual-SIM | - | - | - | - | Yes |
| WAP / Web Browser | n/a | Yes | n/a | n/a | n/a |
| Input | |||||
| Predictive Text Entry | n/a | Yes | n/a | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
- |
Yes Capacitive |
| Memory | |||||
| Memory Card Slot | Yes | - | - | Yes | Yes |
| Messaging | |||||
| Email Client | n/a | - | n/a | n/a | n/a |
| Instant Messaging | n/a | - | n/a | n/a | n/a |
| MMS | n/a | - | n/a | n/a | n/a |
| Text Messaging Templates | n/a | Yes | n/a | n/a | n/a |
| Music | |||||
| Headphone Jack (3.5mm) | Yes | - | Yes | - | Yes |
| Music Player | n/a | - | n/a | n/a | n/a |
| Photo & Video | |||||
| Miracast | - | - | - | - | Yes |
| TV Output | - | - | Yes | - | - |
| Power | |||||
| Fast Charging | - | - | - | - | Yes |
| Productivity | |||||
| Alarm | n/a | Yes | n/a | n/a | n/a |
| Calculator | n/a | Yes | n/a | n/a | n/a |
| Calendar | n/a | Yes | n/a | n/a | n/a |
| To-Do List | n/a | - | n/a | n/a | n/a |
| Voice Memo | n/a | Yes | n/a | n/a | n/a |
| Software | |||||
| Games | n/a | Yes | n/a | n/a | n/a |
| Voice | |||||
| HD Voice | Yes | - | - | - | - |
| Headset Jack (2.5 mm) | n/a | - | n/a | n/a | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| AT&T Maestro 3 | Ericsson R520 | Apple iPhone 4 (GSM) | HTC SPV e100 / 7070 (Tanager) | Asus ZenFone 4 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | AT&T Maestro 3 | Ericsson R520 | Apple iPhone 4 (GSM) | HTC SPV e100 / 7070 (Tanager) | Asus ZenFone 4 |
