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| Phone | Ericsson R520 | Motorola i450 / i455 | Coolpad Quattro 4G |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? | ? |
4" diag. 5 : 3 |
| Display Resolution & Type | ? |
130 x 130 pixels LCD (STN) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz |
| Battery | ? | ? | 1,600 mAh |
| Processor | ? | ? | ? |
| RAM | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | 512 MB |
| Main Camera | - | - | 3 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | - | VGA (640 x 480) |
| Front Camera | - | - | Yes |
| Weight |
4.23 oz (120g) |
4.5 oz (128g) |
3.31 oz (94g) |
| Dimensions |
5.12" x 1.97" x 0.63" (130 x 50 x 16 mm) |
3.5" x 2" x 1.1" (89 x 51 x 27.9 mm) |
4.96" x 2.6" x 0.51" (126 x 66 x 13 mm) |
| Form Factor | Slab | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android |
| Network Bands |
GSM: 900, 1800, 1900 |
iDEN: 800 |
4G LTE: 2, 4 CDMA: 850, 1700, 1900 |
| Data Technology | GPRS | - | LTE (Cat 3) |
| Features | |||
| GPS / Location | - | Yes | n/a |
| Accessibility | |||
| Hearing Aid Compatible | - | Yes | Yes |
| Multiple Languages | Yes | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | Yes |
| Alerts | |||
| Extra Display | - | Yes | - |
| Ringer Profiles | Yes | Yes | - |
| Connectivity | |||
| Bluetooth |
Yes HSP, Sync, OPP, DUN |
- |
Yes Classic Audio |
| Infrared (IR) | Yes | - | - |
| Mobile Hotspot | - | - | n/a |
| USB | - | Yes | Yes |
| Wi-Fi | - | - | Yes |
| Contacts | |||
| Picture ID | - | Yes | n/a |
| Ringer ID | - | Yes | n/a |
| Voice Dialing | Yes | Yes | n/a |
| Customization | |||
| Custom Graphics | - | Yes | n/a |
| Custom Ringtones | Yes | Yes | n/a |
| Real-Music Ringers | - | Yes * | n/a |
| Data & Network | |||
| Data Tethering | Yes | Yes | n/a |
| WAP / Web Browser | Yes | Yes | n/a |
| Input | |||
| Predictive Text Entry | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes |
| Touch Screen | - | - | Yes |
| Memory | |||
| Memory Card Slot | - | - | Yes |
| Messaging | |||
| Email Client | - | - | n/a |
| Instant Messaging | - | - | n/a |
| MMS | - | Yes | n/a |
| Text Messaging Templates | Yes | Yes | n/a |
| Music | |||
| Headphone Jack (3.5mm) | - | - | Yes |
| Music Player | - | - | n/a |
| Productivity | |||
| Alarm | Yes | - | n/a |
| Calculator | Yes | - | n/a |
| Calendar | Yes | Yes | n/a |
| Voice Memo | Yes | Yes | n/a |
| Software | |||
| Games | Yes | Yes | n/a |
| Java (J2ME) | - | Yes | n/a |
| Voice | |||
| Headset Jack (2.5 mm) | - | Yes | n/a |
| Push-To-Talk | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Ericsson R520 | Motorola i450 / i455 | Coolpad Quattro 4G | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Ericsson R520 | Motorola i450 / i455 | Coolpad Quattro 4G |











